1.   Accession number:  20093212244221

Title:  Effects seedling raising methods and sowing rates on machine-transplanted long-age rice seedling

Authors:  Yao, Xiong1 ; Yang, Wenyu1 ; Ren, Wanjun1 

Author affiliation:  1  Agricultural College of Sichuan Agricultural University, Ya'an 625014, China

Corresponding author:  Yang, W. (wenyu.yang@263.net) 

Source title:  Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering

Abbreviated source title:  Nongye Gongcheng Xuebao

Volume:  25

Issue:  6

Issue date:  June 2009

Publication year:  2009

Pages:  152-157

Language:  Chinese

ISSN:  10026819

CODEN:  NGOXEO

Document type:  Journal article (JA)

Publisher:  Chinese Society of Agricultural Engineering, Agricultural Exhibition Road South, Beijing, 100026, China

Abstract:  In order to develop a new technology of rice seedling raising for mechanical transplanting, the effects of seedling raising method and sowing rate on seedling and transplanting quantity were studied using Chuan-Xiang 9838 as test material by field experiments. The results showed that the seedling rate decreased with the increasing of sowing rate. The effects of seedling raising methods on the seedling quality were highly significant. Similarly, sowing rates showed highly significant difference on plant height, stem width, roots number, roots length, root vigour, malondialdehyde and ratio of weight and height, while significant difference on dry weight per hundred plants. The root force of seedling block with non-woven fabrics on upland field was the weakest (6.48 kg/m2), but that with two-layers plastic film was the strongest (18.70 kg/m2). According to GB/T 6243-86, the transplanting quantity that raised with newspaper on upland field was the best, followed by bottomless one. Sowing rate of 277.78 g/m2 showed lower seedling injury rate, seedling hook rate and sowing leakage rate. And sowing rate of 416.67 g/m2 showed lower seedling floating rate, entire seedling floating rate and overturned rate of transplanting. As far as machine-transplanted long-age rice seedling was concerned, the seedling raised with newspaper and bottomless on upland fields, and the sowing rate of 277.78-416.67 g/m2 were recommended.

Number of references:  26

Main heading:  Forestry

Controlled terms:  Aldehydes  -  Fabrics  -  Landforms  -  Newsprint  -  Protective coatings

Uncontrolled terms:  Machine-transplanted quantity  -  Machine-transplanted rice  -  Seedling quality  -  Seedling raising methods  -  Sowing rates

Classification code:  821.0 Woodlands and Forestry  -  819.4 Fiber Products  -  813.2 Coating Materials  -  811.1 Pulp and Paper  -  804.1 Organic Compounds  -  539.2.2 Protecting Materials  -  481.1 Geology

DOI:  10.3969/j.issn.1002-6819.2009.06.029

Database:  Compendex

2.   Accession number:  20093212244214

Title:  Design of the remote control driving system for rolling boat

Authors:  Jiang, Ping1, 2 ; Hu, Wenwu1 ; Luo, Yahui1 ; Xie, Fangping1 ; Sun, Songlin1 

Author affiliation:  1  College of Engineering, Hunan Agricultural University, Changsha 410128, China

2  College of Mechanical and Electrical Engineering, Central South University, Changsha 410083, China

Corresponding author:  Jiang, P. (teacher_jp@163.com) 

Source title:  Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering

Abbreviated source title:  Nongye Gongcheng Xuebao

Volume:  25

Issue:  6

Issue date:  June 2009

Publication year:  2009

Pages:  120-124

Language:  Chinese

ISSN:  10026819

CODEN:  NGOXEO

Document type:  Journal article (JA)

Publisher:  Chinese Society of Agricultural Engineering, Agricultural Exhibition Road South, Beijing, 100026, China

Abstract:  In order to reduce labor intensity, make rolling boat unpiloted, a remote driving control system without changing the original structure of the rolling boat has been designed. This system is composed of electrically controlled pneumatic manipulators, information processing unit, information collection unit, proportional remote receiver and transmitter, etc. It can control the shift, the clutch, the steering and the plough of the rolling boat accurately. The experimental results show that the control distance was as far as 70 meters, the steering radius was less than 2.3 meters, the lateral deviation on a straight line was less than 25 cm, and it could adapt to the severe external environment admirably. Therefore, there is a good prospect for application of this remote driving control system for rolling boat.

Number of references:  16

Main heading:  Fuzzy control

Controlled terms:  Boats  -  Data processing  -  Manipulators  -  Pneumatic control  -  Pneumatic control equipment  -  Remote control

Uncontrolled terms:  Driving systems  -  Electrically controlled pneumatic system  -  External environments  -  Information collections  -  Information processing  -  Labor intensity  -  Lateral deviation  -  Original structures  -  Pneumatic manipulators  -  Remote driving   -  Steering radius  -  Straight lines

Classification code:  921 Mathematics  -  732.1 Control Equipment  -  731.5 Robotics  -  731.1 Control Systems  -  731 Automatic Control Principles and Applications  -  723.4 Artificial Intelligence  -  723.2 Data Processing and Image Processing  -  691.1 Materials Handling Equipment  -  674.1 Small Marine Craft  -  632.4 Pneumatic Equipment and Machinery  -  632.3 Pneumatics

DOI:  10.3969/j.issn.1002-6819.2009.06.022

Database:  Compendex

3.   Accession number:  20093212244195

Title:  Effects of lateral depth and layered-textural soils on water and nitrogen use efficiency of drip irrigated tomato

Authors:  Liu, Yuchun1, 2 ; Li, Jiusheng1 

Author affiliation:  1  China Institute of Water Resources and Hydropower Research, Beijing 100048, China

2  College of Urban and Rural Construction, Hebei Agricultural University, Baoding 071001, China

Corresponding author:  Li, J. (lijs@iwhr.com) 

Source title:  Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering

Abbreviated source title:  Nongye Gongcheng Xuebao

Volume:  25

Issue:  6

Issue date:  June 2009

Publication year:  2009

Pages:  7-12

Language:  Chinese

ISSN:  10026819

CODEN:  NGOXEO

Document type:  Journal article (JA)

Publisher:  Chinese Society of Agricultural Engineering, Agricultural Exhibition Road South, Beijing, 100026, China

Abstract:  The effects of lateral depths and layered-textural soils on tomato yield, quality, water use efficiency (WUE), apparent fertilizer use efficiency (AFUE) and partial factor production of applied nitrogen (PFP) were investigated in a solar heated greenhouse to determine the suitable lateral depth of subsurface drip irrigation with different textured soils. The results indicated that, for the plots with uniform sandy loam soil, there was no significant influence of lateral depths, nitrogen application levels and their interactions on tomato yield and WUE. Tomato Vc contents of subsurface drip irrigation were less than those of surface drip irrigation. An increase of lateral depth resulted in a decreased tomato AFUE. Tomato PFP significantly decreased as nitrogen application level increased from 150 to 225 kg/hm2. For the treatments with uniform sandy loam soil, a lateral depth of 15 cm and a nitrogen application level of 150 kg/hm2 were recommended to obtain higher PFP. The layered-textures of soil significantly decreased tomato yield, WUE and PFP. Compared to the uniform sandy loam soil, the WUE reduced 32% for the sandy over sandy loam soil and 11% for the sandy loam-sandy-sandy loam soil, and the yield and PFP reduced 33% for the sandy over sandy loam soil and 12% for the sandy loam-sandy-sandy loam soil. It was therefore concluded that subsurface drip irrigation should be carefully used in layered textural soils, especially in the coarse over fine soils, from the view of improving water and nitrogen use efficiency.

Number of references:  22

Main heading:  Soils

Controlled terms:  Fruits  -  Nitrogen  -  Nitrogen fertilizers  -  Soil conditioners  -  Subirrigation  -  Water supply

Uncontrolled terms:  Application level  -  Drip irrigation  -  Fertilizer use  -  Lateral depth  -  Layered-textural soils  -  Nitrogen-use efficiency  -  Partial factor  -  Sandy loam soils  -  Sandy loams  -  Solar-heated greenhouse   -  Subsurface drip irrigation  -  Surface drip irrigations  -  Tomato  -  Tomato yield  -  Water-use efficiency

Classification code:  446.1 Water Supply Systems  -  483.1 Soils and Soil Mechanics  -  804 Chemical Products Generally  -  821.2 Agricultural Chemicals  -  821.3 Agricultural Methods  -  821.4 Agricultural Products

DOI:  10.3969/j.issn.1002-6819.2009.06.002

Database:  Compendex

4.   Accession number:  20093212244205

Title:  Analysis of dynamic characteristics of sand grains in wind erosion soil

Authors:  Li, Xiaoli1 ; Shen, Xiangdong1 ; Xie, Weidong2 

Author affiliation:  1  Water Conservancy and Civil Engineering College, Inner Mongolia Agricultural University, Hohhot 010018, China

2  Inner Mongolia Investigation Design Institute of Water Conservancy and Electric Power, Hohhot 010020, China

Corresponding author:  Shen, X. (shen-xiangdong@sohu.com) 

Source title:  Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering

Abbreviated source title:  Nongye Gongcheng Xuebao

Volume:  25

Issue:  6

Issue date:  June 2009

Publication year:  2009

Pages:  71-75

Language:  Chinese

ISSN:  10026819

CODEN:  NGOXEO

Document type:  Journal article (JA)

Publisher:  Chinese Society of Agricultural Engineering, Agricultural Exhibition Road South, Beijing, 100026, China

Abstract:  The wind erosion sand grains of the cultivated land in the typical agro-pastoral transitional zone in the northern foot of Yinshan Mountain in Inner Mongolia were collected with SC-I sand harvester. The collected sand grains were analyzed to calculate the essential parameters for dynamics of sand grains. In the view of acting forces of single soil grain in airflow and the data measured in fields, four-fifth Runge-Kutta-Felhber (RKF) algorithm was adopted to study the trajectories and movement characteristics of sand grains with different force conditions. The results showed that the floating state happened easier with the decreasing of the sand grain diameter. The rotational angular velocity (ω) and vertical initial lift-off velocity of sand grain (v0) were required to be higher when the sand grain diameter increased. Therefore, the sand grains with the diameter less than 0.075 mm were the main grains suspended in the air, and the general double-factor prediction model of maximum height (Hm) of sand grain was constructed in terms of the diameter (D) and vertical initial lift-off velocity (v0) of wind erosion sand grain. By studying the wind erosion characteristics in the region, some foundations are provided for the further research on the wind erosion dynamics characters and soil desertification prevention measures.

Number of references:  11

Main heading:  Erosion

Controlled terms:  Climatology  -  Dynamic analysis  -  Mathematical models  -  Runge Kutta methods  -  Sand  -  Soils

Uncontrolled terms:  Acting force  -  Cultivated lands  -  Dynamic characteristics  -  Floating state  -  Force conditions  -  In-field  -  Inner Mongolia  -  Lift-off velocity  -  Movement characteristics  -  Prediction model   -  Prevention measures  -  Runge-Kutta  -  Sand grain  -  Sand grains  -  Wind erosion  -  Wind erosions

Classification code:  921.6 Numerical Methods  -  921 Mathematics  -  539.1 Metals Corrosion  -  505 Mines and Mining, Nonmetallic  -  483.1 Soils and Soil Mechanics  -  483 Soil Mechanics and Foundations  -  443 Meteorology  -  422.2 Test Methods  -  407 Maritime and Port Structures; Rivers and Other Waterways

DOI:  10.3969/j.issn.1002-6819.2009.06.012

Database:  Compendex

5.   Accession number:  20093212244219

Title:  Experimentation about subsoiling technique for conservation tillage

Authors:  Zhu, Ruixiang1 ; Zhang, Junchang1 ; Xue, Shaoping1 ; Yao, Wansheng1 ; Li, Junyao1 ; Deng, Haitao1 

Author affiliation:  1  College of Mechanical and Electronic Engineering, Northwest Agricultural and Forestry University, Yangling 712100, China

Corresponding author:  Zhang, J. (zhangjunchang@126.com) 

Source title:  Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering

Abbreviated source title:  Nongye Gongcheng Xuebao

Volume:  25

Issue:  6

Issue date:  June 2009

Publication year:  2009

Pages:  145-147

Language:  Chinese

ISSN:  10026819

CODEN:  NGOXEO

Document type:  Journal article (JA)

Publisher:  Chinese Society of Agricultural Engineering, Agricultural Exhibition Road South, Beijing, 100026, China

Abstract:  In view of the questions that the pillar subsoiler is often blocked by crop stubble and ruderal with its higher traction resistance in subsoiling, two solutions were presented. They are to fix a break shovel or a disc coulter in front of the big subsoil-shovel. These two mechanisms were designed and made, and the contradistinctive field experiments were carried out. The results showed that the performance of the subsoiler with disc coulter was better. Compared with the pillar subsoiler and the subsoiler with a break shovel, the traction resistance, power consumption and the width of scarification channel were reduced. The effect of incision for crop stubble and ruderal was improved significantly. The subsoiler with disc coulter can effectively restrain the evaporation of moisture in the soil, so it can be widely used in subsoiling in the corn-cover field.

Number of references:  8

Main heading:  Agricultural machinery

Controlled terms:  Crops  -  Experiments  -  Shovels  -  Soil conservation  -  Soils  -  Traction (friction)

Uncontrolled terms:  Conservation tillage  -  Field experiment  -  Power Consumption  -  Subsoiler  -  Traction resistance

Classification code:  901.3 Engineering Research  -  821.4 Agricultural Products  -  821.3 Agricultural Methods  -  821.1 Agricultural Machinery and Equipment  -  931.1 Mechanics  -  682.1.2 Locomotives  -  605.2 Small Tools, Unpowered  -  483.1 Soils and Soil Mechanics  -  405.1 Construction Equipment  -  682.1.1 Railroad Cars

DOI:  10.3969/j.issn.1002-6819.2009.06.027

Database:  Compendex

6.   Accession number:  20093212244203

Title:  Experimental observation of saline alkali of soil in saline land after changing drainage to impoundment in Lubotan of Shaanxi Province

Authors:  Han, Jichang1, 2 ; Xie, Jiancang1 ; Wang, Tao1 ; Luo, Lintao2 ; Zhu, Manlin1 ; Ye, Xiaofei1 

Author affiliation:  1  Institute of Water Resources and Hydro-electric Engineering, Xi'an University of Technology, Xi'an 710048, China

2  Shaanxi Province Real Estate Service Company, Xi'an 710075, China

Corresponding author:  Xie, J. (jcxie@mail.xaut.edu.cn) 

Source title:  Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering

Abbreviated source title:  Nongye Gongcheng Xuebao

Volume:  25

Issue:  6

Issue date:  June 2009

Publication year:  2009

Pages:  59-65

Language:  Chinese

ISSN:  10026819

CODEN:  NGOXEO

Document type:  Journal article (JA)

Publisher:  Chinese Society of Agricultural Engineering, Agricultural Exhibition Road South, Beijing, 100026, China

Abstract:  Aiming at the specific issues of severe saline land in Lubotan of Shaanxi Province, in the last 10 years, the treatment model of changing drainage to impoundment has been applied with a lot of experimental observation and the key field experiment. According to the observation data, the changes of the moistures content, salinity, ion content of the soil, as well as pH value had been analyzed in different depth of different fields at different times. After treatment, the salinity, pH value and ion content of soil were decreased, and soil organic matter was increased Therefore soil quality was improved remarkably. The results showed that the effect of the treatment of saline land was obvious in Lubotan under "changing drainage to impoundment" treatment model.

Number of references:  16

Main heading:  Land reclamation

Controlled terms:  Alkalinity  -  Desalination  -  Dewatering  -  Organic compounds  -  pH effects  -  Saline water  -  Salinity measurement  -  Soils  -  Transport properties  -  Wastewater reclamation

Uncontrolled terms:  After-treatment  -  Distribution of the water and salt  -  Experimental observation  -  Field experiment  -  Ion content  -  Observation data  -  pH value  -  Soil organic matters  -  Soil quality

Classification code:  931.2 Physical Properties of Gases, Liquids and Solids  -  804.1 Organic Compounds  -  802.3 Chemical Operations  -  801.1 Chemistry, General  -  483.1 Soils and Soil Mechanics  -  943.3 Special Purpose Instruments  -  471.4 Seawater, Tides and Waves  -  452.4 Industrial Wastes Treatment and Disposal  -  445.1 Water Treatment Techniques  -  444 Water Resources  -  442.2 Land Reclamation  -  454.2 Environmental Impact and Protection

DOI:  10.3969/j.issn.1002-6819.2009.06.010

Database:  Compendex

7.   Accession number:  20093212244243

Title:  Application of emulsified tea-tree oil on fresh-keeping of banana under natural condition

Authors:  Zhong, Yejun1 ; Liu, Wei1 ; Liu, Chengmei1 ; Yan, Jielin1 ; Zhu, Deming2 ; Han, Zhiping2 

Author affiliation:  1  National Key Laboratory of Food Science, Nanchang University, Nanchang 330047, China

2  Agricultural Product Processing Research Institute, Chinese Academy of Tropical Agricultural Sciences, Zhanjiang 524001, China

Corresponding author:  Zhong, Y. (zhongyejun@126.com) 

Source title:  Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering

Abbreviated source title:  Nongye Gongcheng Xuebao

Volume:  25

Issue:  6

Issue date:  June 2009

Publication year:  2009

Pages:  280-284

Language:  Chinese

ISSN:  10026819

CODEN:  NGOXEO

Document type:  Journal article (JA)

Publisher:  Chinese Society of Agricultural Engineering, Agricultural Exhibition Road South, Beijing, 100026, China

Abstract:  To expand the application domain of tea tree oil and develop a new natural fresh-keeping agent, the emulsified tea tree oil (ETTO) was prepared with the emulsifier "Span80+Tween80". Through the detection and analysis of the indexes of illness state, soluble solids content, firmness, respiratory intensity, etc, the application effect of ETTO in the fresh-keeping of bananas under natural condition was discussed, which was further compared with that of commonly-used compound pesticide (composed of agricultural streptomycin, thiophanate-methyl and other pesticides) for banana fresh-keeping. The results showed that ETTO of various concentrations had banana fresh-keeping effects of different levels and better effects with its higher concentration, however, when the concentration of ETTO was beyond 1000 mg/L, the fresh-keeping effect did not remarkably rise with the increase of its concentration. ETTO of 1000 mg/L could remarkably extend the shelf life of bananas. In addition, its effects in inhibiting the conversion of reducing sugar and increase of total soluble solid content of bananas after picking were a little weaker than that of compound pesticide. Its effect in delaying the decrease of banana firmness was equivalent to that of compound pesticide, and its effect in inhibiting banana respiration was obviously better than that of compound pesticide.

Number of references:  17

Main heading:  Pesticide effects

Controlled terms:  Agricultural products  -  Concentration (process)  -  Emulsification  -  Fruits  -  Sugar (sucrose)  -  Sugars

Uncontrolled terms:  Application domains  -  Application effect  -  Banana  -  Concentration of  -  Emulsified tea-tree oil  -  Fresh-keeping  -  Natural conditions  -  Reducing sugars  -  Shelf life  -  Soluble solids content   -  Tea tree oil  -  Total soluble solids  -  Tween 80

Classification code:  821.4 Agricultural Products  -  821.2 Agricultural Chemicals  -  804.1 Organic Compounds  -  822.3 Food Products  -  803 Chemical Agents and Basic Industrial Chemicals  -  454.2 Environmental Impact and Protection  -  453.1 Water Pollution Sources  -  802.3 Chemical Operations

DOI:  10.3969/j.issn.1002-6819.2009.06.052

Database:  Compendex

8.   Accession number:  20093212244196

Title:  Influence of large-scale irrigation and irrigation water sources on pan evaporation

Authors:  Yang, Xiuqin1 ; Zhong, Ping'an1 

Author affiliation:  1  College of Hydrology and Water Resources, Hohai University, Nanjing 210098, China

Corresponding author:  Yang, X. (young_sd@yahoo.cn) 

Source title:  Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering

Abbreviated source title:  Nongye Gongcheng Xuebao

Volume:  25

Issue:  6

Issue date:  June 2009

Publication year:  2009

Pages:  13-19

Language:  Chinese

ISSN:  10026819

CODEN:  NGOXEO

Document type:  Journal article (JA)

Publisher:  Chinese Society of Agricultural Engineering, Agricultural Exhibition Road South, Beijing, 100026, China

Abstract:  Using monthly 20 cm pan evaporation data, annual precipitation at six typical meteorological stations in Jining city of Shandong province, and the corresponding irrigated areas data in the same areas, the influence of large-scale irrigation on pan evaporation in mid-latitude region of China was investigated, for revealing the intrinsic relationship between the development of artificial irrigation and the decrease of pan evaporation. The results showed that there was highly significant correlation between pan evaporation data and irrigated areas data at different stages. The correlation in irrigation stage was higher than that in non-irrigation stage or over the whole year. At the same time, the decrease of pan evaporation in irrigated regions using groundwater irrigation was greater than that using surface water irrigation. These results suggest that large-scale, high-intensity irrigation has caused strong influence on the meteorological factors of the near-surface atmosphere, which plays an important role in the decrease of pan evaporation.

Number of references:  29

Main heading:  Irrigation

Controlled terms:  Conductive plastics  -  Evaporation  -  Groundwater  -  Hydrogeology  -  Surface waters  -  Vapors  -  Water analysis  -  Water supply

Uncontrolled terms:  Annual precipitation  -  Correlation analysis  -  Groundwater irrigation  -  Irrigation waters  -  Meteorological factors  -  Meteorological station  -  Near-surface  -  Pan evaporation  -  Shandong province

Classification code:  817.1 Polymer Products  -  804 Chemical Products Generally  -  802.3 Chemical Operations  -  801 Chemistry  -  708.2 Conducting Materials  -  821.3 Agricultural Methods  -  641.1 Thermodynamics  -  446.1 Water Supply Systems  -  445.2 Water Analysis  -  444.2 Groundwater  -  444.1 Surface Water  -  481.1 Geology

DOI:  10.3969/j.issn.1002-6819.2009.06.003

Database:  Compendex

9.   Accession number:  20093212244217

Title:  Development of the seed-metering device test bench with sand-paving conveyor belt

Authors:  Xiang, Yang1 ; Xie, Fangping1 ; Tang, Chuzhou1 ; Xiong, Ying1 

Author affiliation:  1  College of Engineering, Hunan Agricultural University, Changsha 410128, China

Corresponding author:  Tang, C. (chzhtang2002@sina.com) 

Source title:  Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering

Abbreviated source title:  Nongye Gongcheng Xuebao

Volume:  25

Issue:  6

Issue date:  June 2009

Publication year:  2009

Pages:  136-140

Language:  Chinese

ISSN:  10026819

CODEN:  NGOXEO

Document type:  Journal article (JA)

Publisher:  Chinese Society of Agricultural Engineering, Agricultural Exhibition Road South, Beijing, 100026, China

Abstract:  Seed metering device test bench is the key equipment for the device performance test. For solving the deficiency of the oil-belt method, we developed a seeding device test bench including the part of draining sand, draining seed, conveying and controlling by paving sand on conveyer belt. Test results showed that paving sand method can effectively eliminate the seed bounce. Paving high clean sand on the belt can provide favorable background for computer identifying seeds distribution. In addition, this equipment has advantage of no oil pollution, seeds recycling use and convenient operation.

Number of references:  13

Main heading:  Testing

Controlled terms:  Agricultural machinery  -  Belt conveyors  -  Conveying  -  Equipment  -  Motors  -  Pavements  -  Pneumatic materials handling equipment  -  Sand  -  Seed  -  Servomechanisms   -  Stepping motors

Uncontrolled terms:  Clean sand  -  Conveyer belts  -  Conveyor belt  -  Conveyor belts  -  Device performance  -  Key equipment  -  Oil pollution  -  Seed metering devices  -  Seed-metering device  -  Seed-metering device test bench   -  Test benches  -  Test equipment  -  Test results

Classification code:  632.4 Pneumatic Equipment and Machinery  -  691.1 Materials Handling Equipment  -  692.1 Conveyors  -  705 Electric Generators and Motors  -  705.3 Electric Motors  -  732.1 Control Equipment  -  821.1 Agricultural Machinery and Equipment  -  821.4 Agricultural Products  -  901 Engineering Profession  -  632.2 Hydraulic Equipment and Machinery  -  406.1 Highway Systems  -  406.2 Roads and Streets  -  422.2 Test Methods  -  423.2 Test Methods  -  483.1 Soils and Soil Mechanics  -  502.2 Mine and Quarry Equipment  -  503.3 Coal Mining Equipment  -  505 Mines and Mining, Nonmetallic  -  505.3 Nonmetallic Mining Equipment

DOI:  10.3969/j.issn.1002-6819.2009.06.025

Database:  Compendex

10.   Accession number:  20093212244227

Title:  Aquaculture security guarantee system based on water quality monitoring and its application

Authors:  Liu, Xingguo1, 2 ; Liu, Zhaopu2 ; Wang, Pengxiang1 ; Miao, Lei1 

Author affiliation:  1  Fishery Machinery and Instrument Research Institute, Chinese Academy of Fishery Sciences, Shanghai 200092, China

2  College of Resource and Environment, Nanjing Agricultural University, Nanjing 210095, China

Corresponding author:  Liu, Z. (sea@njau.edu.cn) 

Source title:  Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering

Abbreviated source title:  Nongye Gongcheng Xuebao

Volume:  25

Issue:  6

Issue date:  June 2009

Publication year:  2009

Pages:  186-191

Language:  Chinese

ISSN:  10026819

CODEN:  NGOXEO

Document type:  Journal article (JA)

Publisher:  Chinese Society of Agricultural Engineering, Agricultural Exhibition Road South, Beijing, 100026, China

Abstract:  In order to reduce the aquaculture risks, this paper introduced the design of a aquaculture security guarantee system based on the water quality monitoring. The system was composed of water quality monitoring and data disposal system, electrocircuit control system, aeration machine and feeding facility. The system could intelligently control aeration, water layer change and feeding ratio. In aquaculture, the dissolved oxygen security ensured aeration more than 6.2 h/W·d per kilogram fish. The lower limit of mechanic aeration was 3 mg/L, upper limit of mechanic aeration was 5 mg/L. Upper limit aeration time lag was 0.5-1 h, water layer change time lag was 1-2 h. The application indicates it can save 33.4% of aeration operation time, and reduce Feed Conversion Ratio (FCR) by 21.6% than traditional aquaculture aeration on average. The system has advantages of saving energy, feedstuff and guaranteeing the aquaculture security.

Number of references:  22

Main heading:  Water aeration

Controlled terms:  Agriculture  -  Aquaculture  -  Biochemical oxygen demand  -  Dissolution  -  Dissolved oxygen  -  Feeding  -  Intelligent control  -  Mechanics  -  Quality control  -  Water pollution   -  Water quality

Uncontrolled terms:  Change time  -  Data disposal  -  Feed conversion ratios  -  Lower limits  -  Operation time  -  Saving energy  -  System-based  -  Time lag  -  Upper limits  -  Water layers   -  Water quality monitoring

Classification code:  461.9 Biology  -  471.5 Sea as Source of Minerals and Food  -  691.2 Materials Handling Methods  -  723.4.1 Expert Systems  -  931.1 Mechanics  -  731.1 Control Systems  -  821 Agricultural Equipment and Methods; Vegetation and Pest Control  -  821.3 Agricultural Methods  -  913.3 Quality Assurance and Control  -  802.3 Chemical Operations  -  461.7 Health Care  -  454.3 Ecology and Ecosystems  -  444 Water Resources  -  445 Water Treatment  -  445.1 Water Treatment Techniques  -  445.2 Water Analysis  -  452.2 Sewage Treatment  -  452.4 Industrial Wastes Treatment and Disposal  -  453 Water Pollution  -  453.2 Water Pollution Control

DOI:  10.3969/j.issn.1002-6819.2009.06.035

Database:  Compendex

11.   Accession number:  20093212244212

Title:  Experiment on the variations of droplet diameter distribution and local flow rate over radial direction for the electrostatic spray process

Authors:  Zhang, Jun1 ; Zheng, Jieqing1 

Author affiliation:  1  School of Mechanical Engineering, Jimei University, Xiamen 361021, China

Corresponding author:  Zhang, J. (bull0202@sina.com) 

Source title:  Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering

Abbreviated source title:  Nongye Gongcheng Xuebao

Volume:  25

Issue:  6

Issue date:  June 2009

Publication year:  2009

Pages:  104-109

Language:  Chinese

ISSN:  10026819

CODEN:  NGOXEO

Document type:  Journal article (JA)

Publisher:  Chinese Society of Agricultural Engineering, Agricultural Exhibition Road South, Beijing, 100026, China

Abstract:  The droplet diameter distribution and the local flow rate were measured at different radial positions for the electrostatic spray. The experimental results show that the average droplet diameter reduces gradually with increase of radial coordinate and its maximum value is at spray core. The droplet diameter in distribution presents a narrower and monodisperse behavior at both spray core and spray edge positions, whereas exhibits a wider and bimodal characteristic in the area between spray core and edge. It is found that the local flow rate decreases with increase of radial coordinate and its maximum value is also at spray core. The local flow rates increase at all positions over radial direction with increase of total spray flow rate. The local flow rate has an increase for larger radial coordinate positions and a decrease for smaller radial coordinate positions, when the electrostatic voltage increases and total spray flow rate remains constant.

Number of references:  16

Main heading:  Flow rate

Controlled terms:  Drop formation  -  Electric potential  -  Electrostatics  -  Experiments  -  Voltage control  -  Voltage regulators

Uncontrolled terms:  Droplet diameter distribution  -  Electrostatic spraying  -  Electrostatic voltage control  -  Local flow rate  -  Radial direction

Classification code:  943.2 Mechanical Variables Measurements  -  931.2 Physical Properties of Gases, Liquids and Solids  -  901.3 Engineering Research  -  732.1 Control Equipment  -  731.3 Specific Variables Control  -  701.1 Electricity: Basic Concepts and Phenomena  -  631 Fluid Flow

DOI:  10.3969/j.issn.1002-6819.2009.06.019

Database:  Compendex

12.   Accession number:  20093212244246

Title:  Optimization of technology for production of maize slowly digestible starch by enzymatic method

Authors:  Min, Weihong1 ; Liu, Zhou1 ; Jiang, Hongyu1 ; Fang, Li1 ; Ma, Jingxi2 

Author affiliation:  1  Food Science and Engineering College of Jilin Agricultural University, Changchun 130118, China

2  Biology-Food School of Development College of Jilin Agricultural University, Changchun 130600, China

Corresponding author:  Min, W. (minwh2000@163.com) 

Source title:  Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering

Abbreviated source title:  Nongye Gongcheng Xuebao

Volume:  25

Issue:  6

Issue date:  June 2009

Publication year:  2009

Pages:  296-300

Language:  Chinese

ISSN:  10026819

CODEN:  NGOXEO

Document type:  Journal article (JA)

Publisher:  Chinese Society of Agricultural Engineering, Agricultural Exhibition Road South, Beijing, 100026, China

Abstract:  The slowly digestible starch is a new-type functional starch and it has many kinds of physiological functions. Waxy maize starch was taken as raw materials. Enzyme modified technology and moist heat-cooling technology were used to make slowly digestible starch and determine its optimized technological conditions. The results showed that the pullulanase concentration was 9 U/g, the enzyme reaction time was seven hours, the concentration of starch was 12.5%, the heat treatment time was 50 minutes, heat treatment temperature was 110°C, storage temperature was 1°C, storage time was two days and drying temperature was 60°C. Three repeated experiments were carried out under those conditions and the yield of slowly digestible starch was 27.33%.

Number of references:  15

Main heading:  Starch

Controlled terms:  Cooling  -  Enzymes  -  Heat treatment  -  Optimization  -  Technology  -  Thermal effects

Uncontrolled terms:  Concentration of  -  Cooling technology  -  Drying temperature  -  Enzymatic methods  -  Enzyme reaction  -  Heat treatment temperature  -  Heat treatment time  -  Moist heat-cooling technology  -  Physiological functions  -  Pullulanase   -  Slowly digestible starch  -  Storage temperatures  -  Storage time  -  Technological conditions  -  Waxy maize starch

Classification code:  951 Materials Science  -  802.3 Chemical Operations  -  804.1 Organic Compounds  -  815.1.1 Organic Polymers  -  822.3 Food Products  -  901 Engineering Profession  -  921.5 Optimization Techniques  -  801.2 Biochemistry  -  641 Heat and Mass Transfer; Thermodynamics  -  537.1 Heat Treatment Processes  -  531 Metallurgy and Metallography  -  461.2 Biological Materials and Tissue Engineering  -  421 Strength of Building Materials; Mechanical Properties  -  641.2 Heat Transfer

DOI:  10.3969/j.issn.1002-6819.2009.06.055

Database:  Compendex

13.   Accession number:  20093212244215

Title:  Development of 4HQL-2 type whole-feed peanut combine

Authors:  Shang, Shuqi1 ; Li, Guoying1 ; Yang, Ranbing1, 2 ; Sun, Tongzhen1 ; Wang, Yanyao1 ; Lian, Zhengguo1 

Author affiliation:  1  College of Mechanical and Electrical Engineering, Qingdao Agricultural University, Qingdao 266109, China

2  College of Engineering, Shenyang Agricultural University, Shenyang 110161, China

Corresponding author:  Shang, S. (sqshang@qau.edu.cn) 

Source title:  Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering

Abbreviated source title:  Nongye Gongcheng Xuebao

Volume:  25

Issue:  6

Issue date:  June 2009

Publication year:  2009

Pages:  125-130

Language:  Chinese

ISSN:  10026819

CODEN:  NGOXEO

Document type:  Journal article (JA)

Publisher:  Chinese Society of Agricultural Engineering, Agricultural Exhibition Road South, Beijing, 100026, China

Abstract:  According to the characteristics of peanut cultivation, the authors have succeeded in developing the 4HQL-2 type whole-feed peanut combine that is suitable for main peanut producing areas of China by the original design experience. The combine has been utilized the working principle of combining digging and lifting. To keep the effect and stability of digging, we designed a new kind of combination device for digging and lifting. The clamping conveyor was designed based on the three-belt (ordinary V-belt) clamping principle for the first time, so it can lower the rate of peanut's falling to a large extent by flexible clamping manner; The removing soil mechanism can sway up and down to remove soil, so it can keep high efficiency and low harvest loss. The peanut picking part used whole-feed approach and throw-snap working principle can improve the purity rate of picking off the wet peanut. The cleaning mechanism design adopted the combination of wind-sieve selection and the reverse swing of separator riddle and screen riddle can reduce the vibration of the whole machine. The field performance tests and application showed that the combine has complied with the design requirements, and works well. The parameters of the field performance tests are as follows: peanut picking rate ≥99.6%, total loss rate &le3.3%, picking breakage rate &le2.0%, peanut impurity rate &le2.2%. So the combine has complied with the design requirements and relevant standards, and passed appraisal of the Ministry of Agriculture of China.

Number of references:  19

Main heading:  Machine design

Controlled terms:  Combines  -  Cultivation  -  Soils  -  Testing

Uncontrolled terms:  Combination devices  -  Design requirements  -  Field performance  -  High efficiency  -  Innovative design  -  Mechanism design  -  Original design  -  Peanut  -  Performance tests  -  Total loss   -  Whole machine  -  Working principles

Classification code:  422.2 Test Methods  -  423.2 Test Methods  -  483.1 Soils and Soil Mechanics  -  601 Mechanical Design  -  821.1 Agricultural Machinery and Equipment  -  821.3 Agricultural Methods

DOI:  10.3969/j.issn.1002-6819.2009.06.023

Database:  Compendex

14.   Accession number:  20093212244231

Title:  Technological optimization and mathematical model of alcohol fermentation of energy beet

Authors:  Shi, Shuzhi1, 2 ; Cheng, Dayou2 ; Xu, Dechang2 ; Ma, Fengming1 ; Lu, Zhaoxin2 ; Dong, Aijun2 ; Dai, Cuihong2 ; Luo, Chengfei2 

Author affiliation:  1  Key Laboratory of Cold Crop Physiology and Ecology, Ministry of Agriculture, Northeast Agricultural University, Harbin 150030, China

2  School of Food Science and Engineering, Harbin Institute of Technology, Harbin 150090, China

Corresponding author:  Ma, F. (Fengming_ma@sohu.com) 

Source title:  Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering

Abbreviated source title:  Nongye Gongcheng Xuebao

Volume:  25

Issue:  6

Issue date:  June 2009

Publication year:  2009

Pages:  214-218

Language:  Chinese

ISSN:  10026819

CODEN:  NGOXEO

Document type:  Journal article (JA)

Publisher:  Chinese Society of Agricultural Engineering, Agricultural Exhibition Road South, Beijing, 100026, China

Abstract:  Energy beets NY0503 were fermented to produce alcohol by strain ADY (Saccharomyces cerevisiae). Three main factors were screened out from nine factors, such as material concentration, ratio of solvent to material, ADY addition amount, nutrient salts, phosphorus addition amount, pH value, rotational speed, fermentation temperature and fermentation time. The three main factors included phosphorus addition amount, fermentation temperature and material concentration. The regression equation was obtained by response surface methodology. The optimized technology was material concentration 12%, ratio of solvent to material 1:1, added ADY 15%, nutrient salts 0.5, added phosphorus 1.9%, pH 5.0, rotational speed 130 r/min, fermentation temperature 31°C and fermentation time 44 hours. Then five validated experiments were done under the optimal factors. The results showed that the translation rate of alcohol was 95.48% which difference with theoretical value 96.54% was only 1.09%. It shows that the model is feasible.

Number of references:  17

Main heading:  Mathematical models

Controlled terms:  Biochemical engineering  -  Computer simulation  -  Fermentation  -  Materials  -  Nutrients  -  Optimization  -  Phosphorus  -  Salts

Uncontrolled terms:  Alcohol fermentation  -  Energy beet  -  Fermentation temperature  -  Nutrient salts  -  pH value  -  Phosphorus addition  -  Regression equation  -  Response Surface Methodology  -  Rotational speed  -  Saccharomyces cerevisiae   -  Technological optimization  -  Theoretical values  -  Translation rates

Classification code:  804.2 Inorganic Compounds  -  805.1.1 Biochemical Engineering  -  821.2 Agricultural Chemicals  -  822.3 Food Products  -  921 Mathematics  -  921.5 Optimization Techniques  -  951 Materials Science  -  804.1 Organic Compounds  -  454.3 Ecology and Ecosystems  -  461.8 Biotechnology  -  461.9 Biology  -  723.5 Computer Applications  -  801.2 Biochemistry  -  802.2 Chemical Reactions  -  804 Chemical Products Generally

DOI:  10.3969/j.issn.1002-6819.2009.06.040

Database:  Compendex

15.   Accession number:  20093212244213

Title:  Unsteady flow characteristics in double-channel pumps based on sliding mesh

Authors:  Zhao, Binjuan1 ; Yuan, Shouqi2 ; Chen, Huilong1 

Author affiliation:  1  School of Energy and Power Engineering, Jiangsu University, Zhenjiang 212013, China

2  Research Center of Fluid Machinery Engineering and Technology, Jiangsu University, Zhenjiang 212013, China

Corresponding author:  Zhao, B. (zhaobinjuan@ujs.edu.cn) 

Source title:  Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering

Abbreviated source title:  Nongye Gongcheng Xuebao

Volume:  25

Issue:  6

Issue date:  June 2009

Publication year:  2009

Pages:  115-119

Language:  Chinese

ISSN:  10026819

CODEN:  NGOXEO

Document type:  Journal article (JA)

Publisher:  Chinese Society of Agricultural Engineering, Agricultural Exhibition Road South, Beijing, 100026, China

Abstract:  To study the unsteady flow characteristics caused by interaction between the impeller and volute, the unsteady flow field of a double-channel pump was simulated based on sliding mesh and RNG k-Ε turbulence model. It was found that the velocity and pressure distribution in the impeller changed periodically according to the relative position of the impeller channel to the tongue. When the impeller channel was near to the volute outlet, a more regular velocity and pressure distribution was observed. The flow discharged from the impeller mixed with the re-circulated fluid in the volute at the tongue, which exhibited obvious unsteady characteristics. Pressures on the calculation monitors in the volute change periodically. Pressure fluctuations on monitors far from the volute outlet were more obvious than those near to the volute outlet, and became more and more stronger as drawing near the tongue. Comparing with the steady simulation, the calculated averaged head by unsteady simulation is more accord with the reality, which is larger than the tested head with a relative deviation of 10%.

Number of references:  15

Main heading:  Turbulence models

Controlled terms:  Aerodynamics  -  Blowers  -  Fluid dynamics  -  Impellers  -  Pressure distribution  -  Pumps  -  Simulators  -  Unsteady flow

Uncontrolled terms:  Double-channel  -  Double-channel pumps  -  Flow characteristic  -  Impeller channels  -  Pressure fluctuation  -  Relative deviations  -  Relative positions  -  RNG turbulence models  -  Sliding mesh  -  Steady simulation   -  Unsteady characteristics  -  Unsteady simulations

Classification code:  931.1 Mechanics  -  671 Naval Architecture  -  662.1 Automobiles  -  657.1 Solar Energy and Phenomena  -  655.2 Satellites  -  654.1 Rockets and Missiles  -  651.1 Aerodynamics, General  -  631.1 Fluid Flow, General  -  621 Nuclear Reactors  -  618.3 Blowers and Fans  -  618.2 Pumps  -  601.2 Machine Components  -  443.1 Atmospheric Properties

DOI:  10.3969/j.issn.1002-6819.2009.06.021

Database:  Compendex

16.   Accession number:  20093212244244

Title:  Optimization of technology for preparing soluble dietary fiber from extruded soybean residue

Authors:  Lou, Haiwei1, 2 ; Chi, Yujie1, 2 

Author affiliation:  1  College of Food Science, Northeast Agricultural University, Harbin 150030, China

2  Education Ministry's and Provincial Key Laboratory of Soybean Biology, Harbin 150030, China

Corresponding author:  Chi, Y. (yjchi@126.com) 

Source title:  Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering

Abbreviated source title:  Nongye Gongcheng Xuebao

Volume:  25

Issue:  6

Issue date:  June 2009

Publication year:  2009

Pages:  285-289

Language:  Chinese

ISSN:  10026819

CODEN:  NGOXEO

Document type:  Journal article (JA)

Publisher:  Chinese Society of Agricultural Engineering, Agricultural Exhibition Road South, Beijing, 100026, China

Abstract:  Optimized technology for preparing soluble dietary fiber from extruded soybean residue was studied by the central composite rotatable design with four variables of the ratio of liquid to solid, temperature, time and alkali concentration. The yield of soluble dietary fiber was the evaluation index. The results indicated that the effect order of four factors on the yield of soluble dietary fiber was as follows: alkali concentration, ratio of liquid to solid, temperature and time. The canonical analysis revealed that the optimal conditions for preparation of soluble dietary fiber were: ratio of liquid to solid 26:1, temperature 89°C, time 68 min and alkali concentration 1.12%. Under optimal conditions, the predicted yield of soluble dietary fiber from extruded soybean residue was 33.96%, whereas, the experimental yield of soluble dietary fiber was 34.12%. The RSM-predicted yield and the experimental yield of soluble dietary fiber were not significantly different from each other. The results showed that the empirical model developed by response surface methodology was adequate to describe the relationships between the factors and response values. Under optimal conditions, the yield of soluble dietary fiber from extruded soybean residue (34.12%) was significantly more than that from soybean residue (13.51%).

Number of references:  20

Main heading:  Fibers

Controlled terms:  Extrusion  -  Liquids  -  Optimization  -  Technology

Uncontrolled terms:  Alkali concentrations  -  Canonical analysis  -  Central composite rotatable design  -  Empirical model  -  Evaluation index  -  Optimal conditions  -  Predicted yield  -  Response Surface Methodology  -  Soluble dietary fiber  -  Soluble dietary fibers   -  Soybean residue

Classification code:  921.5 Optimization Techniques  -  901 Engineering Profession  -  819.4 Fiber Products  -  931.2 Physical Properties of Gases, Liquids and Solids  -  817 Plastics and Other Polymers: Products and Applications  -  812 Ceramics, Refractories and Glass  -  535.2.2 Metal Forming Practice  -  816.1 Processing of Plastics and Other Polymers

DOI:  10.3969/j.issn.1002-6819.2009.06.053

Database:  Compendex

17.   Accession number:  20093212244232

Title:  Properties and Fourier transform infrared spectrum analysis on bio-oil from fast pyrolysis of poplar sawdust

Authors:  Wu, Hanjing1 ; Liu, Ronghou1 ; Deng, Chunjian1 

Author affiliation:  1  Biomass Energy Engineering Research Center, School of Agriculture and Biology, Shanghai Jiaotong University, Shanghai 200240, China

Corresponding author:  Liu, R. (liurhou@sjtu.edu.cn) 

Source title:  Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering

Abbreviated source title:  Nongye Gongcheng Xuebao

Volume:  25

Issue:  6

Issue date:  June 2009

Publication year:  2009

Pages:  219-223

Language:  Chinese

ISSN:  10026819

CODEN:  NGOXEO

Document type:  Journal article (JA)

Publisher:  Chinese Society of Agricultural Engineering, Agricultural Exhibition Road South, Beijing, 100026, China

Abstract:  Research of physical-chemical properties and Fourier Transform Infrared Spectrum (FTIR) analysis were conducted on bio-oil which was obtained through fast pyrolysis of poplar sawdust, apart from comparing with bio-oil from sweet sorghum stalk residues. The results showed that water content and heating value of bio-oil from sawdust was 25.01% and 20.62 MJ/kg, and its kinematic viscosity at room temperature, density, ash content and carbon residue content were 3.44 mm2/s, 1072 kg/m3, 0.305% and 12.74%, respectively. Simultaneously, the kinematic viscosity of bio-oil decreased significantly with the temperature increasing (25-100°C). With relatively low water content and high heating value, bio-oil from sawdust has wider application prospects than bio-oil from sweet sorghum stalk residues. However, a variety of functional groups inferred from the Fourier transform infrared spectra of different locations on the absorption peaks of bio-oil indicated that further refinery is required before its practical utilization.

Number of references:  20

Main heading:  Fourier transforms

Controlled terms:  Chemical properties  -  Cracking (chemical)  -  Fourier transform infrared spectroscopy  -  Functional groups  -  Heating  -  Kinematics  -  Spectroscopy  -  Spectrum analysis  -  Spectrum analyzers  -  Thermogravimetric analysis   -  Viscosity of liquids  -  Water content

Uncontrolled terms:  Absorption peaks  -  Application prospect  -  Ash contents  -  Bio-oil  -  Carbon residue  -  Fast pyrolysis  -  Fourier transform infrared spectra  -  Fourier transform infrared spectrums  -  Heating value  -  High heating values   -  Kinematic viscosity  -  Low water-content  -  Physical-chemical properties  -  Poplar sawdust  -  Room temperature  -  Sweet sorghum

Classification code:  921.4 Combinatorial Mathematics, Includes Graph Theory, Set Theory  -  922.2 Mathematical Statistics  -  931.1 Mechanics  -  931.2 Physical Properties of Gases, Liquids and Solids  -  944 Moisture, Pressure and Temperature, and Radiation Measuring Instruments  -  931.3 Atomic and Molecular Physics  -  941 Acoustical and Optical Measuring Instruments  -  942 Electric and Electronic Measuring Instruments  -  943 Mechanical and Miscellaneous Measuring Instruments  -  932.2 Nuclear Physics  -  921.3 Mathematical Transformations  -  921 Mathematics  -  423 Non Mechanical Properties and Tests of Building Materials  -  444 Water Resources  -  631.1 Fluid Flow, General  -  642.1 Process Heating  -  643.1 Space Heating  -  801 Chemistry  -  802.2 Chemical Reactions  -  804.1 Organic Compounds

DOI:  10.3969/j.issn.1002-6819.2009.06.041

Database:  Compendex

18.   Accession number:  20093212244211

Title:  Characteristics of ammonia volatilization of slow release compound fertilizer in different pH values of purple soils

Authors:  Hu, Xiaofeng1 ; Wang, Zhengyin1 ; Sun, Qianqian1 ; You, Yuan1 

Author affiliation:  1  College of Resources and Environmental Sciences, Southwest University, Chongqing 400716, China

Corresponding author:  Wang, Z. (wang_zhengyin@163.com) 

Source title:  Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering

Abbreviated source title:  Nongye Gongcheng Xuebao

Volume:  25

Issue:  6

Issue date:  June 2009

Publication year:  2009

Pages:  100-103

Language:  Chinese

ISSN:  10026819

CODEN:  NGOXEO

Document type:  Journal article (JA)

Publisher:  Chinese Society of Agricultural Engineering, Agricultural Exhibition Road South, Beijing, 100026, China

Abstract:  By using Venting method indoor incubation experiment, the ammonia volatilization and kinetic characteristics of uncoated slow release compound fertilizer (SRF) were studied with different pH values of purple soils. The results showed that the soil pH values had significant influence on ammonia volatilization of SRF, ammonia volatilization increased with soil pH values increasing, the order of them was calcareous purple soil>neutral purple soil>acidic purple soil. Compared with the large particle urea (PUR), SRF could significantly reduces rate and total amount of ammonia volatilization from soil, which were decreased by 14.2% and 7.18% in calcareous purple soil, decreased by 32.3% and 24.1% in neutral purple soil, and decreased by 76.8% and 10.7% in acid purple soil, respectively. In the three kinds of purple soils, the dynamics of ammonia volatilization of SRF could be quantitatively described by three equations: the first-order kinetics equation, Elovich equation and parabola equation, and could predict the ammonia volatilization of SRF with these models. SRF could reduce the loss of nitrogen fertilizer, then reduce environment pollution.

Number of references:  16

Main heading:  Soils

Controlled terms:  Ammonia  -  Geologic models  -  Nitrogen fertilizers  -  pH effects  -  Urea

Uncontrolled terms:  Ammonia volatilization  -  Compound fertilizer  -  Elovich equations  -  Environment pollution  -  First-order kinetics equation  -  Kinetic characteristics  -  Kinetics characteristics  -  Large particles  -  pH value  -  Slow release   -  Slow release fertilizer  -  Soil pH  -  Venting method

Classification code:  815.1.1 Organic Polymers  -  804.2 Inorganic Compounds  -  804.1 Organic Compounds  -  821.2 Agricultural Chemicals  -  804 Chemical Products Generally  -  483.1 Soils and Soil Mechanics  -  481.1 Geology  -  801.1 Chemistry, General

DOI:  10.3969/j.issn.1002-6819.2009.06.018

Database:  Compendex

19.   Accession number:  20093212244220

Title:  Influences of the driving intensity on the tractor drivers' physiological load

Authors:  Wang, Jinwu1 ; Masakazu, Komatsuzaki2 ; Moriizumi, Shoji2 

Author affiliation:  1  College of Engineering, Northeast Agricultural University, Harbin 150030, China

2  Tokyo University of Agriculture and Technology, Tokyo 113-8657, Japan

Corresponding author:  Wang, J. (jinwuw@163.com) 

Source title:  Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering

Abbreviated source title:  Nongye Gongcheng Xuebao

Volume:  25

Issue:  6

Issue date:  June 2009

Publication year:  2009

Pages:  148-151

Language:  Chinese

ISSN:  10026819

CODEN:  NGOXEO

Document type:  Journal article (JA)

Publisher:  Chinese Society of Agricultural Engineering, Agricultural Exhibition Road South, Beijing, 100026, China

Abstract:  When driving a tractor in the field, the operating strength and the physiological load of an operator differ greatly from the steering mechanisms. The number of heart beat and the volume of the oxygen consumption were tested based on the two different steering mechanisms. Then the rule of psychological and physiological changes with the different steering mechanisms was achieved. The results state that the operating load for volunteers with the different age and driving age varies from the different steering mechanisms. It provides data of operators themselves for designing the each system on a new model and supplies the important theoretical reference to revising the existing system on tractor.

Number of references:  11

Main heading:  Automobile steering equipment

Controlled terms:  Oxygen  -  Tractors (agricultural)  -  Tractors (truck)

Uncontrolled terms:  Heart beat  -  Operating strength  -  Physiological loads  -  Steering mechanisms  -  The volume of oxygen consumption  -  Tractors

Classification code:  662.4 Automobile and Smaller Vehicle Components  -  663.1 Heavy Duty Motor Vehicles  -  663.2 Heavy Duty Motor Vehicle Components  -  804 Chemical Products Generally  -  821.1 Agricultural Machinery and Equipment

DOI:  10.3969/j.issn.1002-6819.2009.06.028

Database:  Compendex

20.   Accession number:  20093212244247

Title:  Prediction model for the shelf-life of Trichiurus haumela stored at different temperatures

Authors:  Tong, Yi1 ; Xie, Jing1 

Author affiliation:  1  College of Food Science and Technology, Shanghai Ocean University, Shanghai 201306, China

Corresponding author:  Xie, J. (jxie@shou.edu.cn) 

Source title:  Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering

Abbreviated source title:  Nongye Gongcheng Xuebao

Volume:  25

Issue:  6

Issue date:  June 2009

Publication year:  2009

Pages:  301-305

Language:  Chinese

ISSN:  10026819

CODEN:  NGOXEO

Document type:  Journal article (JA)

Publisher:  Chinese Society of Agricultural Engineering, Agricultural Exhibition Road South, Beijing, 100026, China

Abstract:  To study quality changes and shelf life in cold chain circulation, kinetic models were developed to predict the shelf-life of fresh Trichiurus haumela at different temperatures during storage. Total Viable Count (TVC), Total-Volatile Basic Nitrogen (T-VBN) value, K value and sensory evaluation at different storage temperatures (268, 273, 278, 283 and 293 K) were accessed to investigate the relation between the shelf-life and temperature. The kinetic models of TVC, T-VBN value and K value with respect to storage time and temperature were developed based on Arrhenius equation. The high regression coefficients (R2>0.9) indicated the acceptability of the first order reaction and Arrhenius model for predicting the changes of TVC, T-VBN value and K value of Trichiurus haumela. Activation energies (EA) and rate constants (k0) of TVC, T-VBN value, K value were obtained. They were 71.26 kJ/mol, 3.987×1013, 68.86 kJ/mol, 2.159×1012 and 41.26 kJ/mol, 2.539×107, respectively. The results indicate that TVC, T-VBN value and K value increase with the increase of storage time and temperature. It is observed that the evaluation of sensory quality decrease with storage time and increasing temperature. It shows from the reliability assessment between predicted and observed shelf-life that relative error is within ±10% calculated by the prediction model for the shelf-life of Trichiurus haumela. The remaining shelf-life of Trichiurus haumela can be predicted at the storage temperature from 268 K to 293 K based on TVC, T-VBN value and K value.

Number of references:  30

Main heading:  Quality control

Controlled terms:  Activation energy  -  Kinetic theory  -  Mathematical models  -  Quality assurance  -  Quality function deployment  -  Rate constants  -  Total quality management

Uncontrolled terms:  Arrhenius equation  -  Arrhenius models  -  Basic nitrogen  -  Cold chain  -  First order reactions  -  K-values  -  Kinetic models  -  Prediction model  -  Quality change  -  Regression coefficient   -  Relative errors  -  Reliability assessments  -  Sensory evaluation  -  Sensory qualities  -  Shelf life  -  Storage  -  Storage temperatures  -  Storage time  -  Total viable counts  -  Trichiurus haumela

Classification code:  931.1 Mechanics  -  922.2 Mathematical Statistics  -  921 Mathematics  -  931.3 Atomic and Molecular Physics  -  913.3 Quality Assurance and Control  -  802.2 Chemical Reactions  -  801.4 Physical Chemistry  -  912.2 Management

DOI:  10.3969/j.issn.1002-6819.2009.06.056

Database:  Compendex

21.   Accession number:  20093212244224

Title:  Experimental research on remote sensing diagnosis method of Cd pollution stress in rice

Authors:  Guan, Li1 ; Liu, Xiangnan2 

Author affiliation:  1  Institute of Remote Sensing and GIS, Peking University, Beijing 100871, China

2  School of Information Engineering, China University of Geosciences, Beijing 100083, China

Corresponding author:  Guan, L. (binger02600@163.com) 

Source title:  Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering

Abbreviated source title:  Nongye Gongcheng Xuebao

Volume:  25

Issue:  6

Issue date:  June 2009

Publication year:  2009

Pages:  168-173

Language:  Chinese

ISSN:  10026819

CODEN:  NGOXEO

Document type:  Journal article (JA)

Publisher:  Chinese Society of Agricultural Engineering, Agricultural Exhibition Road South, Beijing, 100026, China

Abstract:  As one of the important topics to universal attention, heavy metal pollution is the significant ecological environment problem around the world. In this paper diagnosis spectral indices for Cd pollution stress in rice were selected, thorough research of hyperspectral response features of physiological ecology parameters change of rice in Cd pollution stress to reveal the remote sensing information mechanism of crops pollution stress. Taking advantage of measured ASD hyperspectral data, we synchronized obtained crop parameters data and Cd content data of farm soil in several time phase of growing season of rice. The response relationships between potential sensitive spectrum remote sensing indices and physiological ecology parameters in Cd pollution stress were analyzed, such as leaf pigment concentration, water content, cell structure and leaf area index (LAI). Then the corresponding diagnosis spectral indices were determined, including Modified Chlorophyll Absorption in Reflectance Index (MCARI), Normalized Difference Water Index (NDWI), Red-Edge Vegetation Stress Index (RVSI) and Ratio vegetation index (RVI). Based on them, multi-level diagnosis spectral indices space was established to represent and distinguish Cd pollution degree in rice. The experiment indicated that this method could diagnose Cd pollution stress in rice effectively, but quantitative estimation precision also waited for enhancing.

Number of references:  24

Main heading:  Plasma diagnostics

Controlled terms:  Cell membranes  -  Chlorophyll  -  Crops  -  Ecology  -  Forestry  -  Heavy metals  -  Interferometry  -  Physiological models  -  Pollution  -  Porphyrins   -  Remote sensing  -  Space optics  -  Spectrum analysis  -  Spectrum analyzers  -  Vegetation  -  Water absorption  -  Water content

Uncontrolled terms:  Cd pollution stress  -  Cell structure  -  Content data  -  Diagnosis methods  -  Ecological environments  -  Experimental research  -  Farm soils  -  Growing season  -  Heavy metal pollution  -  HyperSpectral   -  Hyperspectral Data  -  Hyperspectral remote sensing  -  Leaf area index  -  Multi-level  -  Normalized difference water index  -  Pigment concentration  -  Pollution degree  -  Quantitative estimation  -  Ratio vegetation indices  -  Reflectance index   -  Remote sensing index  -  Remote sensing information  -  Rice  -  Spectral indices  -  Vegetation stress indices

Classification code:  821 Agricultural Equipment and Methods; Vegetation and Pest Control  -  821.0 Woodlands and Forestry  -  821.4 Agricultural Products  -  921 Mathematics  -  922.2 Mathematical Statistics  -  804.1 Organic Compounds  -  932.3 Plasma Physics  -  941.4 Optical Variables Measurements  -  942 Electric and Electronic Measuring Instruments  -  943 Mechanical and Miscellaneous Measuring Instruments  -  944 Moisture, Pressure and Temperature, and Radiation Measuring Instruments  -  941 Acoustical and Optical Measuring Instruments  -  802.3 Chemical Operations  -  454.2 Environmental Impact and Protection  -  454.3 Ecology and Ecosystems  -  461.1 Biomedical Engineering  -  461.2 Biological Materials and Tissue Engineering  -  461.9 Biology  -  444 Water Resources  -  525.1 Energy Resources and Renewable Energy Issues  -  656.1 Space Flight  -  731.1 Control Systems  -  741.1 Light/Optics  -  801.2 Biochemistry  -  531 Metallurgy and Metallography

DOI:  10.3969/j.issn.1002-6819.2009.06.032

Database:  Compendex

22.   Accession number:  20093212244200

Title:  Simulated experiment on effect of soil bulk density on soil infiltration capacity

Authors:  Li, Zhuo1 ; Wu, Pute2 ; Feng, Hao2 ; Zhao, Xining2 ; Huang, Jun3 ; Zhuang, Wenhua2 

Author affiliation:  1  College of Resources and Environment, Northwest Agriculture and Forestry University, Yangling 712100, China

2  Institute of Soil and Water Conservation, Ministry of Water Resources, Chinese Academy of Sciences, Yangling 712100, China

3  College of Water Resources and Architectural Engineering, Northwest Agriculture and Forestry University, Yangling 712100, China

Corresponding author:  Wu, P. (gjzwpt@vip.sina.com) 

Source title:  Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering

Abbreviated source title:  Nongye Gongcheng Xuebao

Volume:  25

Issue:  6

Issue date:  June 2009

Publication year:  2009

Pages:  40-45

Language:  Chinese

ISSN:  10026819

CODEN:  NGOXEO

Document type:  Journal article (JA)

Publisher:  Chinese Society of Agricultural Engineering, Agricultural Exhibition Road South, Beijing, 100026, China

Abstract:  Effect of soil bulk density on soil infiltration capacity was explored through simulated experiments. The experimental soils were different in soil texture (sandy loam, medium loam, clay loam) and bulk density by artificially altering composition of soil particle fractions. Infiltration capacity of experimental soils decreased along with increasing soil bulk density. The stable infiltration rate had negative correlation of logarithmic function with soil bulk density. The 120 min-cumulative infiltration showing negative correlation of power function with soil bulk density for sandy loam, and negative linear correlation for medium loam and clay loam. The parameter of Kostiakov infiltration equation which meaned initial infiltration rate decreased along with increasing soil bulk density, and the other parameter which meaned infiltration decaying rate increased. The results showed that the capacity of initial infiltration rate went down and the infiltration decaying rate went up along with increasing soil bulk density. The results provided the theoretical basis for soil improvement and rainfall utilization.

Number of references:  19

Main heading:  Geologic models

Controlled terms:  Clay minerals  -  Groundwater  -  Moisture determination  -  Permittivity  -  Seepage  -  Soil conditioners  -  Soil mechanics  -  Soil moisture

Uncontrolled terms:  Bulk density  -  Clay loams  -  Infiltration capacity  -  Infiltration rate  -  Linear correlation  -  Logarithmic functions  -  Negative correlation  -  Power functions  -  Sandy loams  -  Simulated experiments   -  Soil bulk density  -  Soil improvement  -  Soil infiltration  -  Soil particles  -  Soil textures  -  Theoretical basis

Classification code:  944.2 Moisture Measurements  -  708.1 Dielectric Materials  -  701 Electricity and Magnetism  -  483.1 Soils and Soil Mechanics  -  482.2 Minerals  -  481.1 Geology  -  444.2 Groundwater  -  441 Dams and Reservoirs; Hydro Development  -  407 Maritime and Port Structures; Rivers and Other Waterways

DOI:  10.3969/j.issn.1002-6819.2009.06.007

Database:  Compendex

23.   Accession number:  20093212244198

Title:  Experiment on phreatic evaporation of bare soil and soil with crop in Huaibei plain

Authors:  Wang, Zhenlong1, 2 ; Liu, Miao3 ; Li, Rui1 

Author affiliation:  1  Key Laboratory of Water Resources in Anhui Province, Bengbu 233000, China

2  School of Engineering, Anhui Agricultural University, Hefei 230036, China

3  Jiangsu Province Hydrology and Water Resources Survey Bureau, Nanjing 210029, China

Corresponding author:  Wang, Z. (skywzl@sina.com) 

Source title:  Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering

Abbreviated source title:  Nongye Gongcheng Xuebao

Volume:  25

Issue:  6

Issue date:  June 2009

Publication year:  2009

Pages:  26-32

Language:  Chinese

ISSN:  10026819

CODEN:  NGOXEO

Document type:  Journal article (JA)

Publisher:  Chinese Society of Agricultural Engineering, Agricultural Exhibition Road South, Beijing, 100026, China

Abstract:  Sixty lysimeter experimental data of Wudaogou test station were used for further studying on the variation rules between phreatic evaporation and groundwater level under different soil types and vegetation conditions in Huaibei plain, China. The differences of phreatic evaporation between bare soil and soil with crop were compared from three aspects of zero groundwater burial depth, depth increased and critical depth, and the relationships between phreatic evaporation and meteorological factors were also analyzed. Six phreatic evaporation optimal formulas and correlation parameters for lime concretion black soil and fluvo-aquic soil were obtained by daily and ten days data fitting. The evaporation capacity calculated by Penman-Monteith formula was in place of observed values to improve the fitting accuracy. Taking bare soil phreatic evaporation plus increased-water consumption of crop as the total evaporation in vegetation area, increased-water consumption statistical method in different growth stages and burial depthes is recommended for phreatic evaporation calculation in vegetation areas, and it is a simple, applicable and high accuracy method.

Number of references:  15

Main heading:  Soil surveys

Controlled terms:  Crops  -  Evaporation  -  Experiments  -  Groundwater  -  Hydrogeology  -  Soils  -  Vapors  -  Vegetation  -  Water supply

Uncontrolled terms:  Bare soil and soil with crop  -  Field experiment  -  Huaibei plain  -  Increased-water consumption with crop  -  Phreatic evaporation

Classification code:  901.3 Engineering Research  -  821.4 Agricultural Products  -  821 Agricultural Equipment and Methods; Vegetation and Pest Control  -  804 Chemical Products Generally  -  802.3 Chemical Operations  -  641.1 Thermodynamics  -  525.1 Energy Resources and Renewable Energy Issues  -  483.1 Soils and Soil Mechanics  -  481.1 Geology  -  461.9 Biology  -  446.1 Water Supply Systems  -  444.2 Groundwater  -  406.2 Roads and Streets

DOI:  10.3969/j.issn.1002-6819.2009.06.005

Database:  Compendex

24.   Accession number:  20093212244230

Title:  Biogas refining system for obtaining vehicle fuel similar to natural gas

Authors:  Liang, Suyu1 ; Wang, Shuyang1 ; Li, Erping1 ; Tan, Wenying1 

Author affiliation:  1  Engineering Centre for Biomass Energy Technology of Northeast Forestry University, Harbin 150040, China

Corresponding author:  Wang, S. (dljd2008@yahoo.com.cn) 

Source title:  Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering

Abbreviated source title:  Nongye Gongcheng Xuebao

Volume:  25

Issue:  6

Issue date:  June 2009

Publication year:  2009

Pages:  210-213

Language:  Chinese

ISSN:  10026819

CODEN:  NGOXEO

Document type:  Journal article (JA)

Publisher:  Chinese Society of Agricultural Engineering, Agricultural Exhibition Road South, Beijing, 100026, China

Abstract:  Refining biogas can be used as vehicle fuel and its quality is similar to natural gas. Refining biogas is becoming one of the important branches of energy field. The frame and working process of biogas refining system for obtaining vehicle fuel were discussed. Among them, the main device-hollow fiber polyimide membranes separation module was devised by our special request. And the other devices for removing water vapour, sulfureted hydrogen, oxygen, ammoniate were designed by ourselves. The primary experiments were carried out under the 40°C, 0.6 MPa reaction conditions. The components of biogas were tested before and after refining. The results showed that CH4 increased from 63.47% to 87.21%, CO2, O2, H2S and dew point decreased from 28.22% to 9.23%, from 1.16% to 0.04%, from 30×10-6 to 10×10-6 and from 12°C to -19°C, repectively. The research and experiment of biogas refining system provide theoretical bases and practical references for the development of membrane separation system fit for big or moderate biogas engineering.

Number of references:  16

Main heading:  Petroleum refining

Controlled terms:  Automobile parts and equipment  -  Biogas  -  Experiments  -  Fuels  -  Gas industry  -  Gas permeable membranes  -  Hydrogen  -  Natural gas  -  Oxygen  -  Polyimides   -  Refining  -  Separation  -  Vehicles  -  Water vapor

Uncontrolled terms:  Before and after  -  Dew points  -  Energy fields  -  Hollow fiber  -  Membrane separation  -  Polyimide membranes  -  Reaction conditions  -  Refining systems  -  Separation module  -  Theoretical basis   -  Water vapour  -  Working process

Classification code:  911.2 Industrial Economics  -  663.2 Heavy Duty Motor Vehicle Components  -  801.4 Physical Chemistry  -  802.1 Chemical Plants and Equipment  -  802.3 Chemical Operations  -  804 Chemical Products Generally  -  811.1.1 Papermaking Processes  -  815.1.1 Organic Polymers  -  821.5 Agricultural Wastes  -  822.2 Food Processing Operations  -  901.3 Engineering Research  -  662.4 Automobile and Smaller Vehicle Components  -  432 Highway Transportation  -  443.1 Atmospheric Properties  -  462.1 Biomedical Equipment, General  -  513.1 Petroleum Refining, General  -  641 Heat and Mass Transfer; Thermodynamics  -  522 Gas Fuels  -  524 Solid Fuels  -  533.2 Metal Refining  -  631.1 Fluid Flow, General  -  523 Liquid Fuels

DOI:  10.3969/j.issn.1002-6819.2009.06.039

Database:  Compendex

25.   Accession number:  20093212244210

Title:  Quantitative effects of hydro-dynamic parameters on soil detachment capacity of overland flow

Authors:  Liu, Yumei1, 2 ; Zhang, Guanghui3 ; Li, Lijuan1 ; Han, Yanfeng3 

Author affiliation:  1  Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China

2  Graduate University of Chinese Academy of Sciences, Beijing 100049, China

3  School of Geography, Beijing Normal University, Beijing 100875, China

Corresponding author:  Zhang, G. (ghzhang@bnu.edu.cn) 

Source title:  Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering

Abbreviated source title:  Nongye Gongcheng Xuebao

Volume:  25

Issue:  6

Issue date:  June 2009

Publication year:  2009

Pages:  96-99

Language:  Chinese

ISSN:  10026819

CODEN:  NGOXEO

Document type:  Journal article (JA)

Publisher:  Chinese Society of Agricultural Engineering, Agricultural Exhibition Road South, Beijing, 100026, China

Abstract:  Experiments were performed in a hydraulic flume with varying slope in a larger scale of flow discharge (0.5-2.0 L/s) and slope gradient (5°-25°) to investigate the relationships between soil detachment capacity (Dc) and flow depth, mean flow velocity, flow regime, and friction factor. The objective of this study is to find out the simplest method to predict Dc of overland flow. The results indicated that power function can be used for simulating the relationship between soil detachment capacity and flow depth, and mean flow velocity. There was a close relationship between Dc and flow regime. Dc was more sensitive to Reynolds number than to Flode number. Soil detachment capacity was closely related to friction factor of overland flow. The results of this study suggest that mean flow velocity is the best parameter for predicting the soil detachment capacity. The results are significant to understand the mechanism of soil erosion and to develop process-based erosion model.

Number of references:  17

Main heading:  Erosion

Controlled terms:  Flow of water  -  Flow velocity  -  Fluid dynamics  -  Friction  -  Geologic models  -  Hydrodynamics  -  Mechanics  -  Reynolds number  -  Soils

Uncontrolled terms:  Dynamic parameters  -  Erosion models  -  Flow depth  -  Flow discharges  -  Flow regimes  -  Friction factors  -  Mean flow velocities  -  Overland flow  -  Power functions  -  Quantitative effects   -  Slope gradients  -  Soil detachment  -  Soil detachment capacity  -  Soil erosion

Classification code:  931.2 Physical Properties of Gases, Liquids and Solids  -  931.1 Mechanics  -  631.2 Hydrodynamics  -  631.1.1 Liquid Dynamics  -  631.1 Fluid Flow, General  -  943.2 Mechanical Variables Measurements  -  631 Fluid Flow  -  483.1 Soils and Soil Mechanics  -  483 Soil Mechanics and Foundations  -  481.1 Geology  -  407 Maritime and Port Structures; Rivers and Other Waterways  -  539.1 Metals Corrosion

DOI:  10.3969/j.issn.1002-6819.2009.06.017

Database:  Compendex

26.   Accession number:  20093212244206

Title:  Comprehensive evaluation of soil fertility based on GIS and attribute recognition model

Authors:  Wang, Zilong1 ; Fu, Qiang1 ; Jiang, Qiuxiang1 

Author affiliation:  1  College of Water Conservancy and Architecture, Northeast Agricultural University, Harbin 150030, China

Corresponding author:  Fu, Q. (fuqiang100@371.net) 

Source title:  Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering

Abbreviated source title:  Nongye Gongcheng Xuebao

Volume:  25

Issue:  6

Issue date:  June 2009

Publication year:  2009

Pages:  76-80

Language:  Chinese

ISSN:  10026819

CODEN:  NGOXEO

Document type:  Journal article (JA)

Publisher:  Chinese Society of Agricultural Engineering, Agricultural Exhibition Road South, Beijing, 100026, China

Abstract:  Attribute recognition model based on entropy weight was used to evaluate the soil fertility of typical region in Sanjiang Plain, which contained 100 soil samples with 7 physical and chemical indexes, including soil total nitrogen, soil organic matter, pH value etc. Then spatial distribution map of soil fertility was delineated on the basis of GIS techniques. Results indicated that the overall level of soil fertility in typical area was higher, 90% of the soil was in a fertile or relative fertile level, soil nitrogen and organic matter had degressive trend. Soil phosphorus and potassium was lower and had extremely unbalanced distributions. Therefore maintaining and advancing soil fertility and actualizing balance fertilization techniques were necessary measures for the region. Evaluation methods in the study had precise recognition function, simple and steady structure and minished the affection of subjective factors to a great extent, which gave information system of soil fertility and expert decision system a powerful technological support. Evaluation results were intuitive and practical, and can provide immediate scientific basis for soil improvement and agricultural industry adjustment.

Number of references:  15

Main heading:  Geologic models

Controlled terms:  Agriculture  -  Biogeochemistry  -  Biological materials  -  Entropy  -  Fertilizers  -  Geographic information systems  -  Organic compounds  -  Phosphorus  -  Potassium  -  Soil surveys   -  Soils

Uncontrolled terms:  Attribution recognition model  -  Comprehensive evaluation  -  Entropy weight  -  GIS  -  Soil fertility

Classification code:  903.3 Information Retrieval and Use  -  723.3 Database Systems  -  801.2 Biochemistry  -  804 Chemical Products Generally  -  804.1 Organic Compounds  -  821 Agricultural Equipment and Methods; Vegetation and Pest Control  -  821.2 Agricultural Chemicals  -  641.1 Thermodynamics  -  483.1 Soils and Soil Mechanics  -  481.2 Geochemistry  -  481.1 Geology  -  461.2 Biological Materials and Tissue Engineering  -  406.2 Roads and Streets  -  549.1 Alkali Metals

DOI:  10.3969/j.issn.1002-6819.2009.06.013

Database:  Compendex

27.   Accession number:  20093212244226

Title:  Analysis and control technology if temperature fluctuation in cold storage for fruit

Authors:  Zhang, Daohui1 ; Liu, Qingzhong1 ; Wei, Hairong1 ; Zhou, Guangfang1 ; Shen, Guangning1 

Author affiliation:  1  Shandong Institute of Pomology, Key Laboratory for Fruit Biotechnology Breeding of Shandong, Tai'an 271000, China

Corresponding author:  Zhang, D. (daohuizhan@sina.com) 

Source title:  Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering

Abbreviated source title:  Nongye Gongcheng Xuebao

Volume:  25

Issue:  6

Issue date:  June 2009

Publication year:  2009

Pages:  180-185

Language:  Chinese

ISSN:  10026819

CODEN:  NGOXEO

Document type:  Journal article (JA)

Publisher:  Chinese Society of Agricultural Engineering, Agricultural Exhibition Road South, Beijing, 100026, China

Abstract:  The temperature variance of cold storage for fruit, in particular the large fluctuations, seriously affected the fruit quality of medium and long-term storage. This paper reports a simple method for the detection of the temperature of cold storage and temperature drift of temperature control instrument. The result showed that the main reason for the large temperature fluctuations was the temperature drift of temperature control instrument itself. According to the detection result, through improving the cell circuit in temperature control instrument, the temperature drift was controlled effectively, thus the temperature error was reduced. The margin of temperature drift error reduced from 3.5°C to 0.3°C, the cold storage temperature fluctuations decreased from 5.3°C to 1.4°C.

Number of references:  21

Main heading:  Cold storage

Controlled terms:  Cell membranes  -  Error detection  -  Fruits  -  Instruments  -  Refrigerators  -  Temperature control  -  Temperature distribution  -  Temperature measurement  -  Thermal effects

Uncontrolled terms:  Cell circuits  -  Control technologies  -  Fruit quality  -  Improved circuit  -  Long-term storage  -  SIMPLE method  -  Storage temperatures  -  Temperature drift  -  Temperature drifts  -  Temperature error   -  Temperature fluctuation  -  Temperature variance

Classification code:  731.3 Specific Variables Control  -  821.4 Agricultural Products  -  941 Acoustical and Optical Measuring Instruments  -  951 Materials Science  -  942 Electric and Electronic Measuring Instruments  -  944 Moisture, Pressure and Temperature, and Radiation Measuring Instruments  -  944.6 Temperature Measurements  -  943 Mechanical and Miscellaneous Measuring Instruments  -  721.1 Computer Theory, Includes Formal Logic, Automata Theory, Switching Theory, Programming Theory  -  694.4 Storage  -  421 Strength of Building Materials; Mechanical Properties  -  461.2 Biological Materials and Tissue Engineering  -  531 Metallurgy and Metallography  -  641 Heat and Mass Transfer; Thermodynamics  -  641.1 Thermodynamics  -  644.3 Refrigeration Equipment and Components

DOI:  10.3969/j.issn.1002-6819.2009.06.034

Database:  Compendex

28.   Accession number:  20093212244199

Title:  Effects of alfalfa-grain rotation on soil moisture restoration in semi-arid and drought-inclined areas of the Loess Plateau

Authors:  Sun, Jian1 ; Li, Jun1, 2 ; Wang, Meiyan1 ; Wang, Xuechun1 ; Fang, Xinyu1 ; Ren, Jingjing1 

Author affiliation:  1  College of Agronomy, Northwest Agriculture and Forestry University, Yangling 712100, China

2  State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Institute of Soil and Water Conservation, Chinese Academy of Science and Ministry of Water Resources, Yangling 712100, China

Corresponding author:  Li, J. (junli@nwsuaf.edu.cn) 

Source title:  Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering

Abbreviated source title:  Nongye Gongcheng Xuebao

Volume:  25

Issue:  6

Issue date:  June 2009

Publication year:  2009

Pages:  33-39

Language:  Chinese

ISSN:  10026819

CODEN:  NGOXEO

Document type:  Journal article (JA)

Publisher:  Chinese Society of Agricultural Engineering, Agricultural Exhibition Road South, Beijing, 100026, China

Abstract:  Soil moistures were measured and analyzed in 0-1000 cm layers on alfalfa grasslands with different growth years and alfalfa-grain crop rotations by different growth years, in semi-arid and drought-inclined areas of the Loess Plateau. The results showed that with the increasing alfalfa growth years, the thickness of dry soil layer of alfalfa grasslands deepened gradually. The dry layer soil depth of 3 years alfalfa field had reached 760 cm, that of 6, 7, 10 years alfalfa fields had been over 1000 cm, the soil layers of 1000-5000 cm of 6 years alfalfa field were still in drying layer, the average of soil moisture was 9.68%. Alfalfa-grain crop rotation could significantly reduce the thickness and distribution of dry soil layer. Comparing with 10 years old alfalfa field, the soil moisture in 0-1000 cm profile of rotated grain crop fields had recovered in some extent. The average rate of soil water resumption was 25.2 mm per year for 2, 6, 8, 12 and 18 years grain crop rotation fields, and annual accumulative resumption in 0-1000 cm soil layer was 123.1 cm. The soil recovery degree in 0-300 cm layers was better than that in deeper soil layers, and with the extension of the rotation period, the effect of soil water resumption could be much better, the water resumption amount in 0-660 cm had reached 531.1 mm for 18 years grain crop rotation field. The suitable year for alfalfa fields to begin grain rotation was 5 or 6 years, and years for soil moisture restored to the local soil stable moisture with grain crop rotation needed 23.8 years in 0-1000 cm profile of 6 years alfalfa field. In this region, reasonable alfalfa-grain crop rotation pattern was 5 or 6 years alfalfa and 24 years grain crop planting.

Number of references:  21

Main heading:  Grain growth

Controlled terms:  Crops  -  Drought  -  Groundwater  -  Moisture determination  -  Permittivity  -  Restoration  -  Rotation  -  Soil moisture  -  Underwater soils

Uncontrolled terms:  Alfalfa (Medicago sativa)  -  Alfalfa-grain crop rotation  -  Loess plateau  -  Semi-arid prone to drought area  -  Soil water restoration

Classification code:  708.1 Dielectric Materials  -  802.3 Chemical Operations  -  821.4 Agricultural Products  -  701 Electricity and Magnetism  -  913.5 Maintenance  -  933.1.2 Crystal Growth  -  944.2 Moisture Measurements  -  931.1 Mechanics  -  601.1 Mechanical Devices  -  409 Civil Engineering, General  -  443.3 Precipitation  -  444 Water Resources  -  402 Buildings and Towers  -  444.2 Groundwater  -  483.1 Soils and Soil Mechanics  -  531.2 Metallography  -  471.1 Oceanography, General

DOI:  10.3969/j.issn.1002-6819.2009.06.006

Database:  Compendex

29.   Accession number:  20093212244229

Title:  Simulation of effect of water on external quality of standard cut chrysanthemum in solar greenhouse

Authors:  Zhou, Yanbao1 ; Dai, Jianfeng1 ; Lin, Lu1 ; Luo, Weihong1 ; Zhao, Chunjiang2 ; Qiao, Xiaojun2 ; Liu, Kexin3 

Author affiliation:  1  College of Agriculture, Nanjing Agricultural University, Nanjing 210095, China

2  Beijing Research Center for Information Technology in Agriculture, Beijing 100089, China

3  Beijing XinHua Horticulture, Beijing 100026, China

Corresponding author:  Luo, W. (lwh@njau.edu.cn) 

Source title:  Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering

Abbreviated source title:  Nongye Gongcheng Xuebao

Volume:  25

Issue:  6

Issue date:  June 2009

Publication year:  2009

Pages:  204-209

Language:  Chinese

ISSN:  10026819

CODEN:  NGOXEO

Document type:  Journal article (JA)

Publisher:  Chinese Society of Agricultural Engineering, Agricultural Exhibition Road South, Beijing, 100026, China

Abstract:  Water is the important factor affecting the growth and external quality of chrysanthemum. The aim of this study was to quantitatively investigate the effects of water on the external quality indices (plant height, stem diameter, leaf number, diameter of flower head, length of flower neck) of standard cut chrysanthemum grown in a solar greenhouse. Experiments of standard cut chrysanthemum (Chrysanthemum morifolium 'Shenma') with different planting dates and different levels of water treatment were conducted in a solar greenhouse in Beijing from August 2006 to June 2007. The physiological product of thermal effectiveness and PAR(PTEP) was used to describe the seasonal change of the external quality indices. Effects of substrate water potential on the dynamics of plant height, stem diameter, leaf number, diameter of flower head, length of flower neck were quantified based on the experimental data. These quantitative relationships were then integrated into a model to predict the effects of substrate water potential on the external quality indices of standard cut chrysanthemum in solar greenhouse. Independent experimental data were used to validate the model. The results showed that the coefficient of determination (R2) between the simulated and measured values of plant height, stem diameter, leaf number, diameter of flower head, length of flower neck based on the 1:1 line were 0.98, 0.93, 0.98, 0.93, 0.86, respectively, and the relative prediction error (RE) between the simulated and measured values were 8.79%, 5.66%, 8.45%, 12.2%, 12.9%, respectively, for plant height, stem diameter, leaf number, diameter of flower head and length of flower neck. The model developed in this study gives satisfactory predictions of the external quality indices of the standard cut chrysanthemum, hence, it can be used for optimizing water management for standard cut chrysanthemum production in solar greenhouses.

Number of references:  18

Main heading:  Hydraulic models

Controlled terms:  Agriculture  -  Chemicals removal (water treatment)  -  Greenhouse effect  -  Greenhouses  -  Quality assurance  -  Quality control  -  Quality function deployment  -  Solar heating  -  Standards  -  Substrates   -  Total quality management  -  Water management

Uncontrolled terms:  Chrysanthemum ,  -  Coefficient of determination  -  Effect of water  -  Experimental data  -  External quality  -  External quality control  -  Plant height  -  Planting date  -  Prediction errors  -  Satisfactory predictions   -  Seasonal changes  -  Solar greenhouse  -  Solar greenhouses  -  Stem diameter  -  Thermal effectiveness  -  Water potential

Classification code:  714.2 Semiconductor Devices and Integrated Circuits  -  801 Chemistry  -  803 Chemical Agents and Basic Industrial Chemicals  -  804 Chemical Products Generally  -  813.1 Coating Techniques  -  821 Agricultural Equipment and Methods; Vegetation and Pest Control  -  821.6 Farm Buildings and Other Structures  -  902.2 Codes and Standards  -  912.2 Management  -  913.3 Quality Assurance and Control  -  922.2 Mathematical Statistics  -  712.1 Semiconducting Materials  -  402.1 Industrial and Agricultural Buildings  -  443.1 Atmospheric Properties  -  444 Water Resources  -  446 Waterworks  -  451 Air Pollution  -  452.3 Industrial Wastes  -  461 Bioengineering and Biology  -  632.1 Hydraulics  -  642.1 Process Heating  -  643.1 Space Heating  -  657.1 Solar Energy and Phenomena

DOI:  10.3969/j.issn.1002-6819.2009.06.038

Database:  Compendex

30.   Accession number:  20093212244218

Title:  Experiments on influencing factors of cutting force of rape stem

Authors:  Wu, Mingliang1 ; Guan, Chunyun2 ; Tang, Chuzhou1 ; Chen, Sheyuan2 ; Luo, Haifeng1 ; Xie, Fangping1 

Author affiliation:  1  College of Engineering, Hunan Agricultural University, Changsha 410128, China

2  Institute of Oil, Hunan Agricultural University, Changsha 410128, China

Corresponding author:  Tang, C. (chzhtang2002@sina.com) 

Source title:  Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering

Abbreviated source title:  Nongye Gongcheng Xuebao

Volume:  25

Issue:  6

Issue date:  June 2009

Publication year:  2009

Pages:  141-144

Language:  Chinese

ISSN:  10026819

CODEN:  NGOXEO

Document type:  Journal article (JA)

Publisher:  Chinese Society of Agricultural Engineering, Agricultural Exhibition Road South, Beijing, 100026, China

Abstract:  In order to minimize the cutting force for rape stem of combine harvester cutting blades and reduce cutting loss, single factor and multi-factor experiments were carried out on the main influencing factors of cutting forces for rape stem using the self-made cutting test-bed. The main factors included cutting mode, cutting position on the rape stem, cutting blade pattern and cutting velocity. The results of single factor experiments showed that the cutting forces of serrated blade were smaller than those of slippery blade. Sliding cutting was the more labor-saving way in the cutting modes. Cutting velocity and cutting position on the rape stem had the greatest effects on the cutting forces, which shown as the decrease of the cutting forces with the increasing of the cutting velocity and the raising of cutting position on the rape stem above the ground. The results of multi-factor experiments showed that when the height of cutting position above the ground was 400 mm, the cutting force of sliding cutting used serrated blade was the smallest. The study can provide theoretical basis for the design of effective and reliable cutting mechanism.

Number of references:  15

Main heading:  Experiments

Controlled terms:  Harvesters  -  Machine design  -  Velocity

Uncontrolled terms:  Cutting blade  -  Cutting experiments  -  Cutting velocity  -  Rape  -  Stem

Classification code:  601 Mechanical Design  -  821.1 Agricultural Machinery and Equipment  -  901.3 Engineering Research  -  931.1 Mechanics

DOI:  10.3969/j.issn.1002-6819.2009.06.026

Database:  Compendex

31.   Accession number:  20093212244204

Title:  Effect of control lower limit of subsurface irrigation on phosphorus distribution in soil profiles of protected land

Authors:  Wang, Yaosheng1 ; Zhang, Yulong1 ; Yu, Na1 ; Zou, Hongtao1 

Author affiliation:  1  Northeast Key Laboratory of Soil and Environment, College of Land and Environmental Sciences, Shenyang Agricultural University, Shenyang 110161, China

Corresponding author:  Zhang, Y. (ylzsau@163.com) 

Source title:  Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering

Abbreviated source title:  Nongye Gongcheng Xuebao

Volume:  25

Issue:  6

Issue date:  June 2009

Publication year:  2009

Pages:  66-70

Language:  Chinese

ISSN:  10026819

CODEN:  NGOXEO

Document type:  Journal article (JA)

Publisher:  Chinese Society of Agricultural Engineering, Agricultural Exhibition Road South, Beijing, 100026, China

Abstract:  A subsurface irrigation experiment was conducted in a five-year tomato-grown protected land in the bases for scientific research of Shenyang agricultural university during 2000-2004. To different treatments, the irrigation allowable lower limits were set to 10, 16, 40, and 63 kPa, respectively, but the irrigation allowable upper limits of them were set to be 6 kPa. Results showed that the distribution and contents of phosphorus in soil profile were affected significantly by subsurface irrigation and irrigation lower limit. Soil total phosphorus, inorganic phosphorus and available phosphorus were higher at the depth of 0-10 and 10-20 cm than those at other depths, and were lowest at the depth of 30-40 cm. Changes of available phosphorus was mainly at the depth of 0-30 cm. Soil organic phosphorus leached down into the soil layers with irrigation water, and reached the highest contents at the depth of 40-60 cm. Soil inorganic phosphorus was the dominant form of phosphorus in different soil layers for all treatments. The results indicated that irrigation could be applied to facilitate the transformation and availability of phosphorus in soil.

Number of references:  18

Main heading:  Phosphorus

Controlled terms:  Leaching  -  Soils  -  Subirrigation  -  Water supply

Uncontrolled terms:  Available phosphorus  -  Inorganic phosphorus  -  Irrigation waters  -  Low irrigation limit  -  Lower limits  -  Organic phosphorus  -  Phosphorus distribution  -  Protected land  -  Scientific researches  -  Soil layer   -  Soil phosphorus  -  Soil profiles  -  Subsurface irrigation  -  Total phosphorus  -  Upper limits

Classification code:  446.1 Water Supply Systems  -  483.1 Soils and Soil Mechanics  -  533.1 Ore Treatment  -  802.3 Chemical Operations  -  804 Chemical Products Generally  -  821.3 Agricultural Methods

DOI:  10.3969/j.issn.1002-6819.2009.06.011

Database:  Compendex

32.   Accession number:  20093212244249

Title:  Regularity for changes of respiratory intensity of different sweet potato varieties at normal atmospheric temperature

Authors:  Lian, Xijun1 ; Li, Jie1 ; Wang, Hong1 ; Qian, Rui1 ; Jia, Ye1 

Author affiliation:  1  Tianjin Key Laboratory of Food Biotechnology, Tianjin University of Commerce, Tianjin 300134, China

Corresponding author:  Lian, X. (lianliu2002@vip.sina.com) 

Source title:  Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering

Abbreviated source title:  Nongye Gongcheng Xuebao

Volume:  25

Issue:  6

Issue date:  June 2009

Publication year:  2009

Pages:  310-313

Language:  Chinese

ISSN:  10026819

CODEN:  NGOXEO

Document type:  Journal article (JA)

Publisher:  Chinese Society of Agricultural Engineering, Agricultural Exhibition Road South, Beijing, 100026, China

Abstract:  Respiration is an important physiological function for postharvest agricultural products and an important factor of affecting their storage and transportation. Physiological function of postharvest agricultural products might be understood by determining their respiratory intensity so as to obtain basic data for low-temperature storage, control atmospheric storage and calculation of respiratory heat. The results showed that the respiratory intensities of eight species of sweet potatoes such as Umbilicus coloured potato, Jing VI potato, American black potato, Golden sea II, Japanese yellow potato, Fruit potato, Su VIII potato, Banana potato were very different at normal temperature during the period of storage. Japanese yellow potato was the best one for storage at normal atmospheric temperature, the weight loss ratio per day of it was only 0.45%, then umbilicus coloured potato and Su VIII potato took the second place. American black potato and Jing VI potato were the last. The initial respiratory intensities of eight species of sweet potatoes was 0.09-0.47 mg/(kg·h), in which the lowest was Su VIII potato, and the highest was Jing VI potato. The respiratory intensities of different sweet potatoes of long storage at normal atmospheric temperature were Japanese yellow potato 0.52 mg/(kg·h), Su VIII potato 0.53 mg/(kg·h), Fruit potato 0.57 mg/(kg·h), Umbilicus coloured potato 0.58 mg/(kg·h), Banana potato 0.59 mg/(kg·h), Golden sea II 0.60 mg/(kg·h), American black potato 0.65 mg/(kg·h), Jing VI potato 0.68 mg/(kg·h), respectively. The storage time of different sweet potatoes before the occurrence of respiratory climacteric happened were Japanese yellow potato 7 d, Banana potato 7 d, Su VIII potato 9 d, Fruit potato 9 d, American black potato 10 d, Jing VI potato 11 d, Umbilicus coloured potato 11 d and Golden sea II 13 d. The characteristic of sweet potatoes of long storage at normal atmospheric temperature was low respiratory intensity during climacteric period.

Number of references:  17

Main heading:  Atmospheric temperature

Controlled terms:  Atmospheric humidity  -  Atmospheric thermodynamics  -  Fruits  -  Humidity control  -  Moisture  -  Physiology

Uncontrolled terms:  Low-temperature storage  -  Physiological functions  -  Postharvest  -  Respiratory intensity  -  Storage  -  Storage time  -  Sweet potato  -  Weight loss

Classification code:  821.4 Agricultural Products  -  801.4 Physical Chemistry  -  643.3 Air Conditioning  -  641.1 Thermodynamics  -  461.9 Biology  -  443.1 Atmospheric Properties  -  402 Buildings and Towers

DOI:  10.3969/j.issn.1002-6819.2009.06.058

Database:  Compendex

33.   Accession number:  20093212244197

Title:  Characteristics of water consumption and growth of cotton with alternate partial root-zone drip irrigation under mulch in South-Xinjiang

Authors:  Su, Litan1 ; Hu, Dan Tumarbay2 ; Zhang, Zhanyu3 

Author affiliation:  1  Key Laboratory of Oasis Ecology and Desert Environment, Xinjiang Institute of Ecology and Geography, CAS, Urimqi 830011, China

2  College of Hydraulic and Civil Engineering, Xinjiang Agricultural University, Urimqi 830011, China

3  College of Modern Agricultural Water and Soil Engineering, Hohai University, Nanjing 210098, China

Corresponding author:  Su, L. (sulitan@ms.xjb.ac.cn) 

Source title:  Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering

Abbreviated source title:  Nongye Gongcheng Xuebao

Volume:  25

Issue:  6

Issue date:  June 2009

Publication year:  2009

Pages:  20-25

Language:  Chinese

ISSN:  10026819

CODEN:  NGOXEO

Document type:  Journal article (JA)

Publisher:  Chinese Society of Agricultural Engineering, Agricultural Exhibition Road South, Beijing, 100026, China

Abstract:  The cotton field irrigation experiments were carried out to study the effects of two irrigation methods (alternate partial root-zone drip irrigation under mulch (APRD) and conventional root-zone drip irrigation under mulch (CRD)) and three water application rates (3750, 4500, 5250 m3/hm2) on the soil water consumption, the characteristics of cotton growth(such as cotton stem height, root length, and so on), and water use efficiency (WUE) of cotton. Results in cotton field of arid area showed that the maximum vertical soil wetted depth was more than 50 cm and the maximum horizontal soil wetted radius was 40 cm under moderate irrigation level (4500 m3/hm2) of APRD, and the order of soil water content was the middle sites of mulch>the edge sites of much>the middle sites of bare land. Average soil water content had increasing trend during the whole growing stage of cotton, stem height and root length of cotton were increased with the water application rate. The effects of different irrigation methods on the cotton stem height and root length were not significantly under the same water application rates, and the effects of the water application rates on the cotton stem height and root length under APRD were larger than those under CRD. Compare with CRD, APRD constrains transpiration rate of cotton, which was beneficial to the improvement of water use efficiency by reducing soil evaporation and water consumption of crop transpiration. There was an important role to obtain high yield and high water use efficiency in the drip irrigation cotton field of arid area.

Number of references:  14

Main heading:  Water content

Controlled terms:  Arid regions  -  Biochemical oxygen demand  -  Cotton  -  Cultivation  -  Irrigation  -  Soil moisture  -  Transpiration  -  Underwater soils  -  Water supply  -  Wetting

Uncontrolled terms:  Alternate partial root-zone drip irrigation under mulch  -  Arid area  -  Bare lands  -  Characteristics of water consumption  -  Cotton growth  -  Drip irrigation  -  Edge sites  -  Growth  -  High water  -  High yield   -  Irrigation level  -  Irrigation methods  -  Root length  -  Soil water  -  Soil water content  -  Stem height  -  Transpiration rates  -  Water application rate  -  Water consumption  -  Water use efficiency   -  Xinjiang

Classification code:  643 Space Heating, Ventilation and Air Conditioning  -  802.3 Chemical Operations  -  819.1 Natural Fibers  -  641.2 Heat Transfer  -  821.3 Agricultural Methods  -  901.4 Impact of Technology on Society  -  931.2 Physical Properties of Gases, Liquids and Solids  -  821.4 Agricultural Products  -  483.1 Soils and Soil Mechanics  -  444 Water Resources  -  446.1 Water Supply Systems  -  452.2 Sewage Treatment  -  443 Meteorology  -  452.4 Industrial Wastes Treatment and Disposal  -  461.9 Biology  -  471.1 Oceanography, General  -  453 Water Pollution

DOI:  10.3969/j.issn.1002-6819.2009.06.004

Database:  Compendex

34.   Accession number:  20093212244240

Title:  Assessment and analysis of soil resource quality losses on cultivated land in the process of urbanization

Authors:  Deng, Jinsong1 ; Li, Jun2 ; Zhang, Ling1 ; Wang, Ke1 ; Xu, Hongwei1 ; Shi, Yongjun3 

Author affiliation:  1  Institution of Remote Sensing and Information System Application, Zhejiang University, Hangzhou 310029, China

2  Environmental Protection Institute of Zhejiang Province, Hangzhou 310007, China

3  School of Environment Sciences, Zhejiang Forestry University, Hangzhou 311300, China

Corresponding author:  Shi, Y.

Source title:  Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering

Abbreviated source title:  Nongye Gongcheng Xuebao

Volume:  25

Issue:  6

Issue date:  June 2009

Publication year:  2009

Pages:  261-265

Language:  Chinese

ISSN:  10026819

CODEN:  NGOXEO

Document type:  Journal article (JA)

Publisher:  Chinese Society of Agricultural Engineering, Agricultural Exhibition Road South, Beijing, 100026, China

Abstract:  Based on remote sensing and GIS techniques, a long time series (1996-2006) of multi-source SPOT high spatial-resolution images was applied to extract accurately land use change information. Based on the information, soil resource quality index (SQI) was applied to assess and analyze the losses of soil quality in the rapid urbanization process of Hangzhou city. The results showed that Handzhou's rapid urbanization process was at the cost of the serious losses of soil quality during the decade. In particular most of urban expansion took place in the high-quality soil area with the lost areas of fluvio-marine yellow loamy soil occupying 38.11% of the total losses. Of total losses, the lost areas of soil resource with the best degree of SQI occupied 43%, and the lost areas of farmland quality occupied 83.83%, with 45.86% farmland resource lost areas belonging to the best degree of SQI. The effective utilization and reasonable protection of soil resource during urban development has become a urgent problem to be solved.

Number of references:  16

Main heading:  Soils

Controlled terms:  Image processing  -  Land use  -  Planning  -  Project management  -  Quality control  -  Quality management  -  Remote sensing  -  Time series  -  Urban planning

Uncontrolled terms:  Cultivated lands  -  Hangzhou City  -  High quality  -  Land-use change  -  Loamy soils  -  Long time series  -  Multisource  -  Quality indices  -  Quality loss  -  Rapid urbanization process   -  Remote sensing and GIS  -  Soil quality  -  Soil quality losses  -  Soil resource quality index  -  Soil resources  -  Spatial resolution  -  SPOT  -  Total loss  -  Urban development  -  Urban expansion   -  Urbanization  -  Urgent problems

Classification code:  913.3 Quality Assurance and Control  -  912.2 Management  -  741 Light, Optics and Optical Devices  -  731.1 Control Systems  -  922.2 Mathematical Statistics  -  723.2 Data Processing and Image Processing  -  442.2 Land Reclamation  -  403.1 Urban Planning and Development  -  403 Urban and Regional Planning and Development  -  483.1 Soils and Soil Mechanics

DOI:  10.3969/j.issn.1002-6819.2009.06.049

Database:  Compendex

35.   Accession number:  20093212244228

Title:  Sugar-free culture system of tissue culture plantlet for large space based on environmental control

Authors:  Ma, Mingjian1 ; Song, Yuedong1 

Author affiliation:  1  School of Light Industrial and Agricultural Engineering, Shandong University of Technology, Zibo 255012, China

Corresponding author:  Ma, M. (mmj@sdut.edu.cn) 

Source title:  Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering

Abbreviated source title:  Nongye Gongcheng Xuebao

Volume:  25

Issue:  6

Issue date:  June 2009

Publication year:  2009

Pages:  192-197

Language:  Chinese

ISSN:  10026819

CODEN:  NGOXEO

Document type:  Journal article (JA)

Publisher:  Chinese Society of Agricultural Engineering, Agricultural Exhibition Road South, Beijing, 100026, China

Abstract:  In order to achieve the plantlet sugar-free culture in open space, a sugar-free culture system with environmental control device was set up. The air in system culture container flowed through the pipeline to air-processing equipment. The environment cleanliness in culture container was ensured and the spreading bacteria was cut off. The system cultivated the plantlet worked with carbon dioxide, supported by perlite and provided by artificial light and nutrition solution on time. Temperature and relative humidity was controlled using upper and lower limits, CO2 concentration was controlled using fuzzy-integral method in culture container. The test showed that the temperature was controlled at 20-30°C and relative humidity at 72%-76% during illumination, the temperature at 14°C or more and relative humidity at 80%-85% during dark. The control of CO2 concentration had no overshoot, the rise time was 30 min, the steady-state error was 43 μmol/mol, and therefore in this way the culture quality of chrysanthemum plantlet was better than that in a test tube.

Number of references:  19

Main heading:  Humidity control

Controlled terms:  Atmospheric humidity  -  Carbon dioxide  -  Containers  -  Environmental engineering  -  Moisture  -  Sugar (sucrose)  -  Sugars  -  Tissue culture

Uncontrolled terms:  Artificial light  -  Culture systems  -  Cut-off  -  Environmental control  -  Growth  -  Integral method  -  Large spaces  -  Lower limits  -  ON time  -  Open space   -  Processing equipment  -  Relative humidities  -  Risetime  -  Steady state errors  -  Temperature and relative humidity  -  Test tube

Classification code:  822.3 Food Products  -  804.2 Inorganic Compounds  -  804.1 Organic Compounds  -  801.4 Physical Chemistry  -  801.2 Biochemistry  -  694 Packaging  -  691 Bulk Handling and Unit Loads  -  644.2 Refrigerants  -  643.3 Air Conditioning  -  461.2 Biological Materials and Tissue Engineering  -  454 Environmental Engineering  -  443.1 Atmospheric Properties  -  402 Buildings and Towers

DOI:  10.3969/j.issn.1002-6819.2009.06.036

Database:  Compendex

36.   Accession number:  20093212244239

Title:  Cultivated land urbanization and measure of urban land expansion in Three Gorges reservoir area

Authors:  Cao, Yingui1 ; Yuan, Chun1 ; Zhou, Wei1 ; Wang, Jing2 ; Qian, Minjie1 ; Yuan, Tao1 

Author affiliation:  1  School of Land Science and Technology, China University of Geosciences, Beijing 100083, China

2  Land Key Laboratory of Land Resources Ministry, Beijing 100035, China

Corresponding author:  Yuan, C.

Source title:  Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering

Abbreviated source title:  Nongye Gongcheng Xuebao

Volume:  25

Issue:  6

Issue date:  June 2009

Publication year:  2009

Pages:  254-260

Language:  Chinese

ISSN:  10026819

CODEN:  NGOXEO

Document type:  Journal article (JA)

Publisher:  Chinese Society of Agricultural Engineering, Agricultural Exhibition Road South, Beijing, 100026, China

Abstract:  Rule of urban land expansion and cultivated land occuption was analyzed based on interpretation of remote sensing image data in 1975, 1987, 1995, 2000 and 2005. Urban land expansion was conducted a quantitative analysis with urban land expansion intension, urban land expansion core, urban land expansion type, compact degree of urban land expansion and urban land expansion fractal index theoretical model. Spatial analysis of expansion track in different buffer scales was conducted by buffer analysis method. The results showed that Chongqing urban district and Yubei district were occupied a large number of cultivated land. Near the districts affected by expansion core of Chongqing urban district and Yubei district were higher expansion intension. The expansion was order and the expansion model was filling. Buffer analysis was an effective method in the research of urban expansion track. The urban expansion intension was higher in the second buffer strand of the study area. Analysis of the urban expansion encroachment onto cultivated land and its expansion spatial model in 1975-2005, which is help for controlling urbanization encroachment onto cultivated land, grasping urbanization stages and predicting the development trend in the future.

Number of references:  16

Main heading:  Expansion

Controlled terms:  Image reconstruction  -  Remote sensing

Uncontrolled terms:  Buffer analyses  -  Buffer analysis  -  Chongqing  -  Cultivated land urbanization  -  Cultivated lands  -  Development trends  -  Fractal index  -  Quantitative analysis  -  Remote sensing images  -  Spatial analysis   -  Spatial models  -  Study areas  -  Theoretical models  -  Three Gorges reservoir  -  Three gorges reservoir area  -  Urban expansion  -  Urban land

Classification code:  723.2 Data Processing and Image Processing  -  731.1 Control Systems  -  741 Light, Optics and Optical Devices  -  951 Materials Science

DOI:  10.3969/j.issn.1002-6819.2009.06.048

Database:  Compendex

37.   Accession number:  20093212244235

Title:  Effect of paper mill sludge compost on aluminum pollution in acid soil

Authors:  Lin, Yunqin1 ; Wang, Dehan1 ; Lin, Lianfeng1 ; Shen, Yi1 ; Liu, Zhenkun1 

Author affiliation:  1  College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China

Corresponding author:  Wang, D. (dehanwang@scau.edu.cn) 

Source title:  Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering

Abbreviated source title:  Nongye Gongcheng Xuebao

Volume:  25

Issue:  6

Issue date:  June 2009

Publication year:  2009

Pages:  235-240

Language:  Chinese

ISSN:  10026819

CODEN:  NGOXEO

Document type:  Journal article (JA)

Publisher:  Chinese Society of Agricultural Engineering, Agricultural Exhibition Road South, Beijing, 100026, China

Abstract:  The aluminum pollution in red soil and plant when paper mill sludge compost (PMSC) was applied in a maize pot experiment was evaluated. The results showed that the active aluminum concentration in treatments added with PMSC was much higher than that of CK in the early stage of pot plant, and the active aluminum concentration increased with the increase of compost. But the former decreased sharply during planting, and were lower than that in the original red soil at the end of planting. During the whole period of pot plant, total monomeric aluminum was the main existing form of active aluminum in soil. The aluminum concentrations in maize plant (leaves, stems and roots) were all lower than CK and the maize planted with PSMC grew better than CK, which indicated that PMSC was suitable to apply in red soil because it could improve soil nutrients and cause no aluminum pollution in soil-plant. The better ratio of PSMC to soil was 10%. The experimental results also showed that pH value, organic carbon (OC) concentration and effective phosphate concentration of red soil increased after addition of PSMC.

Number of references:  29

Main heading:  Soil pollution

Controlled terms:  Agriculture  -  Alumina  -  Aluminum  -  Composting  -  Concentration (process)  -  Experiments  -  Organic carbon  -  Paper  -  Paper and pulp mills  -  Papermaking machinery   -  Soils

Uncontrolled terms:  Acid soils  -  Aluminum concentration  -  Maize  -  Maize plants  -  Paper mill sludge composting  -  Paper mill sludges  -  pH value  -  Phosphate concentration  -  Pot experiment  -  Pot plants   -  Red soils  -  Soil nutrients

Classification code:  901.3 Engineering Research  -  804.2 Inorganic Compounds  -  811.1 Pulp and Paper  -  811.1.2 Papermaking Equipment  -  812.1 Ceramics  -  821 Agricultural Equipment and Methods; Vegetation and Pest Control  -  821.5 Agricultural Wastes  -  804.1 Organic Compounds  -  541.1 Aluminum  -  483.1 Soils and Soil Mechanics  -  454.2 Environmental Impact and Protection  -  452 Municipal and Industrial Wastes; Waste Treatment and Disposal  -  402.1 Industrial and Agricultural Buildings  -  802.3 Chemical Operations

DOI:  10.3969/j.issn.1002-6819.2009.06.044

Database:  Compendex

38.   Accession number:  20093212244233

Title:  Analysis on the factors impacting ignition process of densified straw briquette fuel

Authors:  Yuan, Hairong1, 2 ; Zuo, Xiaoyu1 ; Li, Xiujin1 ; Pang, Yunzhi1 

Author affiliation:  1  Center for Resources and Environmental Research, Beijing University of Chemical Technology, Beijing 100029, China

2  Planting Industry Service Centre of Yanqing County of Beijing City, Beijing 102100, China

Corresponding author:  Pang, Y. (pangyz@mail.buct.edu.cn) 

Source title:  Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering

Abbreviated source title:  Nongye Gongcheng Xuebao

Volume:  25

Issue:  6

Issue date:  June 2009

Publication year:  2009

Pages:  224-228

Language:  Chinese

ISSN:  10026819

CODEN:  NGOXEO

Document type:  Journal article (JA)

Publisher:  Chinese Society of Agricultural Engineering, Agricultural Exhibition Road South, Beijing, 100026, China

Abstract:  Type LLA-6 household cooking stove was used as experimental device. The factors investigated included three ignition-assisting agents, two shapes of chimney with three heights, ignition-assisting cover, and thickness of briquette fuel. Effect of those factors on ignition process was studied. The results showed that JC15 and CJ51 ignition-assisting agents achieved the best igniting results. The igniting time of the cone-shaped chimney with 1.5 m height was 51.3% as much as that of the column-shaped one. Densified Corn Straw Briquette Fuel (DCBF) thickness of 0.5-3 cm above the cover could guarantee the normal ignition, which was obviously better than that without cover. The nest piling shape of briquette fuel was found to be the best one. The study provides effective methods for immediate ignition of DCBF and a guarantee against wider applications of DCBF in China.

Number of references:  16

Main heading:  Briquetting

Controlled terms:  Briquets  -  Chimneys  -  Fuels

Uncontrolled terms:  Briquette fuels  -  Corn straws  -  Igniting time  -  Ignition process

Classification code:  402.1 Industrial and Agricultural Buildings  -  522 Gas Fuels  -  523 Liquid Fuels  -  524 Solid Fuels  -  614.1 Steam Power Plant Design and Construction  -  802.3 Chemical Operations

DOI:  10.3969/j.issn.1002-6819.2009.06.042

Database:  Compendex

39.   Accession number:  20093212244237

Title:  Preliminary study on technology for fuel ethanol fermentation with discarded tobacco leaves

Authors:  Sun, Shizhong1 ; Gao, Tianrong1 ; Zhao, Yan1 ; Zhong, Zishun1 ; Bao, Yi1 

Author affiliation:  1  Key Laboratory of Renewable Energy Technology and Advanced Materials Preparation, Ministry of Education, Yunnan Normal University, Kunming 650092, China

Corresponding author:  Gao, T. (gaotian-rong@ynnu.edu.cn) 

Source title:  Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering

Abbreviated source title:  Nongye Gongcheng Xuebao

Volume:  25

Issue:  6

Issue date:  June 2009

Publication year:  2009

Pages:  245-248

Language:  Chinese

ISSN:  10026819

CODEN:  NGOXEO

Document type:  Journal article (JA)

Publisher:  Chinese Society of Agricultural Engineering, Agricultural Exhibition Road South, Beijing, 100026, China

Abstract:  Discarded tobacco leaves are good materials for fuel ethanol production because of their richness and high sugar contents. Technology for fuel ethanol fermentation with Yunnan discarded tobacco leaves was preliminarily studied using orthogonal experiments. Analyses of effects of various yeasts, various levels of nutrient supplement and various pretreatment methods of raw material on fermentation were mainly focused. The experimental results showed that: yeasts and levels of nutrition supplement did not significantly affect the ethanol fermentation. The use of pretreatment methods of removing nicotine and semi-solid-state fermentation methods could significantly increase the yield of fuel ethanol. The optimized fermentation technology based on comparisons of various treatment effects was put forward. In addition to fuel ethanol, the products of fermentation technology also included nicotine of important use.

Number of references:  15

Main heading:  Fermentation

Controlled terms:  Biochemical engineering  -  Ethanol  -  Fuels  -  Pyridine  -  Sugar (sucrose)  -  Sugars  -  Technology  -  Tobacco  -  Yeast

Uncontrolled terms:  Discarded tobacco leaves  -  Ethanol fermentation  -  Fuel ethanol  -  Fuel ethanol fermentation  -  Nicotine  -  Nutrient supplements  -  Orthogonal experiment  -  Pretreatment methods  -  Semi-solid  -  Sugar content   -  Technology-based  -  Tobacco leave  -  Treatment effects

Classification code:  901 Engineering Profession  -  822.3 Food Products  -  821.4 Agricultural Products  -  805.1.1 Biochemical Engineering  -  804.1 Organic Compounds  -  802.2 Chemical Reactions  -  801.2 Biochemistry  -  524 Solid Fuels  -  523 Liquid Fuels  -  522 Gas Fuels  -  461.8 Biotechnology

DOI:  10.3969/j.issn.1002-6819.2009.06.046

Database:  Compendex

40.   Accession number:  20093212244202

Title:  Model of water-saving farming system in Manas River Valley in Xinjiang Region of China

Authors:  Li, Yuyi1 ; Pang, Huancheng1 ; Zhang, Fenghua2 ; Chen, Fu3 ; Lai, Xianqi2 

Author affiliation:  1  Institute of Agro-resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing 100081, China

2  Key Laboratory of Oasis Ecological Agriculture of Xinjiang Bingtuan, Shihezi 832003, China

3  College of Agronomy and Biotechnology, China Agricultural University, Beijing 100094, China

Corresponding author:  Chen, F. (chenfu@cau.edu.cn) 

Source title:  Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering

Abbreviated source title:  Nongye Gongcheng Xuebao

Volume:  25

Issue:  6

Issue date:  June 2009

Publication year:  2009

Pages:  52-58

Language:  Chinese

ISSN:  10026819

CODEN:  NGOXEO

Document type:  Journal article (JA)

Publisher:  Chinese Society of Agricultural Engineering, Agricultural Exhibition Road South, Beijing, 100026, China

Abstract:  Developing water-saving farming system is an effective way of ensuring the water resources security in the arid inland area. Taking Manas River Valley as study case, and combining data collection with field investigation and theoretical analysis method, the paper analyzed mainly the special natural conditions, the development situation of agricultural water and existing problem in the region, and proposed ideas for developing water-saving farming system as well. According to the topography and landform character and the water resources in this region, the study set forth seven kinds of water-saving farming system being suitable for different type regions, namely dry farming and grazing model in low hilly area, heirloom fruits and vegetables planting model in the upper and middle part of alluvial dilurial fan, the model of forage planting by saline water irrigation in the alluvial fan edge, the rice-cotton rotation model in spring overflow area, cotton planting model in the alluvial plain, multiple cropping model with sequential cropping and relay intercropping in dry delta part, and the farming model of the efficient agroforestry ecosystems in the ancient lakeside plain. Results provide scientific basis for promoting development of water-saving farming system and the optimal allocation of water resources in arid area of Xinjiang Region of China.

Number of references:  15

Main heading:  Saline water

Controlled terms:  Agriculture  -  Arid regions  -  Cotton  -  Land use  -  Landforms  -  Natural resources management  -  Rivers  -  Water analysis  -  Water conservation  -  Water resources   -  Zoning

Uncontrolled terms:  Agricultural water  -  Agroforestry  -  Alluvial fans  -  Alluvial plains  -  Analysis method  -  Arid area  -  Data collection  -  Developing model  -  Dry farming  -  Existing problems   -  Farming system  -  Field investigation  -  Hilly areas  -  Manas River Valley  -  Natural conditions  -  Optimal allocation  -  Resources security  -  River valley  -  Study case  -  Xinjiang

Classification code:  445.2 Water Analysis  -  454 Environmental Engineering  -  481.1 Geology  -  901.4 Impact of Technology on Society  -  801 Chemistry  -  821 Agricultural Equipment and Methods; Vegetation and Pest Control  -  821.4 Agricultural Products  -  819.1 Natural Fibers  -  444.1 Surface Water  -  444 Water Resources  -  403 Urban and Regional Planning and Development  -  403.1 Urban Planning and Development  -  403.2 Regional Planning and Development  -  407.2 Waterways  -  442.2 Land Reclamation  -  443 Meteorology

DOI:  10.3969/j.issn.1002-6819.2009.06.009

Database:  Compendex

41.   Accession number:  20093212244194

Title:  Analysis of irrigation efficiency and water use efficiency of border irrigation

Authors:  Zheng, Hexiang1 ; Shi, Haibin1 ; Cheng, Manjin2 ; Zhu, Min1 ; Gonçalves, José Manuel3 

Author affiliation:  1  College of Water Conservancy and Civil Engineering, Inner Mongolia Agricultural University, Huhhot 010018, China

2  Hydraulic Conservancy Science Institute in Inner Mongolia, Huhhot 010020, China

3  Department of Agricultural Engineering, Institute of Agronomy, Technical University of Lisbon, Lisbon, 1349-017, Portugal

Corresponding author:  Shi, H. (shi_haibin@sohu.com) 

Source title:  Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering

Abbreviated source title:  Nongye Gongcheng Xuebao

Volume:  25

Issue:  6

Issue date:  June 2009

Publication year:  2009

Pages:  1-6

Language:  Chinese

ISSN:  10026819

CODEN:  NGOXEO

Document type:  Journal article (JA)

Publisher:  Chinese Society of Agricultural Engineering, Agricultural Exhibition Road South, Beijing, 100026, China

Abstract:  The irrigation efficiency is an importance factor which influences crop yield and water use efficiency in border irrigation. Aiming at existing problems on larger workload in evaluating irrigation efficiency, the SIRMOD model, SRFR model and field test method were separately adopted to calculate the irrigation efficiency and distribution uniformity based on experimental data in the borders of wheat. The results indicated that irrigation efficiency can be appraised by SIRMOD model and SRFR model based on less data. Regularities of effects of the unit width flux, land leveling precision and surface grade on irrigation efficiency in certain condition were obtained by results of simulation. By analyzing the influences of the average irrigation efficiency on crop yield and water use efficiency in the whole growing period of wheat in different sizes of borders, it can be concluded that water use efficiency increase separately from present 1.10 kg/m3 to 1.38 kg/m3 and 1.35 kg/m3 on the condition of that farmland's length is 45 m and wide are 5.0 m and 7.5 m. The necessity that the wide sizes of larger border should be reduced in irrigated area was demonstrated from the field test aspect.

Number of references:  15

Main heading:  Irrigation

Controlled terms:  Biochemical oxygen demand  -  Crops  -  Productivity  -  Water analysis  -  Water supply

Uncontrolled terms:  Border irrigation  -  Irrigation efficiency  -  Irrigation uniformity  -  SIRMOD model  -  SRFR model

Classification code:  913.1 Production Engineering  -  821.4 Agricultural Products  -  821.3 Agricultural Methods  -  801 Chemistry  -  453 Water Pollution  -  452.4 Industrial Wastes Treatment and Disposal  -  452.2 Sewage Treatment  -  446.1 Water Supply Systems  -  445.2 Water Analysis

DOI:  10.3969/j.issn.1002-6819.2009.06.001

Database:  Compendex

42.   Accession number:  20093212244242

Title:  Influence of sieve-through impurities on wheat microbe activity and storage quality

Authors:  Zhou, Xianqing1 ; Zhang, Yurong1 ; Wang, Junli1 ; Yu, Linping2 ; Liu, Xuejun3 

Author affiliation:  1  College of Food Science and Technology, Henan University of Technology, Zhengzhou 450052, China

2  Dezhou State Grain Reserve Depot, Dezhou 253011, China

3  Liaocheng State Grain Reserve Depot, Liaocheng 252000, China

Corresponding author:  Zhou, X. (xianqingzh@163.com) 

Source title:  Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering

Abbreviated source title:  Nongye Gongcheng Xuebao

Volume:  25

Issue:  6

Issue date:  June 2009

Publication year:  2009

Pages:  274-279

Language:  Chinese

ISSN:  10026819

CODEN:  NGOXEO

Document type:  Journal article (JA)

Publisher:  Chinese Society of Agricultural Engineering, Agricultural Exhibition Road South, Beijing, 100026, China

Abstract:  Controlling of impurity type and content is a serious problem to be solved and faced by China grain distribution for a long period. The selective removal of dangerous impurities and reducing or preventing the damage caused by impurities to quality of grain druring storage are helpful to improve the storageablity and reduce storage losses of grain. Under the conditions of temperature (30°C) and relative humidity (80%-90%), the influences of sieve-through impurities on microbe activity and storage quality under the simulated storage condition were carried out in this paper. The results showed as follows: the sieve-through impurities had an indirect effect on storage quality of wheat by microbes. Under the suitable temperature and relative humidity, the sieve-through impurities made the microbes of wheat pile increase and resulted in wheat deterioration. The more microbes carried on the sieve-through impurities, the more rapidly the storage quality of wheat changed. The correlation analysis showed that the amount of external microbes and the detection rate of internal microbes had a significantly positive correlation with the fatty acid value (r=0.799, 0.602), and significantly negative correlations with germination rate and the activity of peroxidase. It is obvious that the sieve-through impurities have a great influence on the wheat storage quality. Therefore, the sieve-through impurities should be separated as much as possible before wheat warehousing in order to reduce harm of the impurities to wheat quality during storage and increase the wheat storage stability.

Number of references:  17

Main heading:  Quality control

Controlled terms:  Atmospheric humidity  -  Fatty acids  -  Grain (agricultural product)  -  Impurities  -  Microorganisms  -  Moisture  -  Plants (botany)  -  Quality assurance  -  Quality function deployment  -  Sieves   -  Total quality management

Uncontrolled terms:  Correlation analysis  -  Detection rates  -  Germination rates  -  Grain distribution  -  Indirect effects  -  Negative correlation  -  Positive correlations  -  Relative humidities  -  Selective removal  -  Storage condition   -  Storage loss  -  Storage quality  -  Storage quality control  -  Storage stability  -  Temperature and relative humidity  -  Wheat  -  Wheat quality

Classification code:  951 Materials Science  -  802.1 Chemical Plants and Equipment  -  804.1 Organic Compounds  -  821.4 Agricultural Products  -  912.2 Management  -  913.3 Quality Assurance and Control  -  922.2 Mathematical Statistics  -  801.4 Physical Chemistry  -  605 Small Tools and Hardware  -  502.2 Mine and Quarry Equipment  -  461.9 Biology  -  443.1 Atmospheric Properties  -  405.1 Construction Equipment  -  801.2 Biochemistry

DOI:  10.3969/j.issn.1002-6819.2009.06.051

Database:  Compendex

43.   Accession number:  20093212244241

Title:  Energy analysis of agricultural eco-economic system before and after grain for green in typical watershed in loess hilly region of China

Authors:  Zhou, Ping1, 2 ; Liu, Guobin1 ; Hou, Xilu1 

Author affiliation:  1  Institute of Soil and Water Conservation, Chinese Academy of Sciences and Ministry of Water Resources, Yangling 712100, China

2  Institute of Mountain Hazards and Environment, Chinese Academy of Sciences and Ministry of Water Resources, Chengdu 610041, China

Corresponding author:  Liu, G. (gbliu@ms.iswc.ac.cn) 

Source title:  Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering

Abbreviated source title:  Nongye Gongcheng Xuebao

Volume:  25

Issue:  6

Issue date:  June 2009

Publication year:  2009

Pages:  266-273

Language:  Chinese

ISSN:  10026819

CODEN:  NGOXEO

Document type:  Journal article (JA)

Publisher:  Chinese Society of Agricultural Engineering, Agricultural Exhibition Road South, Beijing, 100026, China

Abstract:  Based on emergy theory and method, resource utilization, environmental pressure, variation of emergy indexes and efficiency of agricultural eco-economic system were analyzed before and after "grain for green policy" from resource input and output in zhifanggou watershed in loess hilly region of China. The results showed that the total emergy output of agricultural products of agricultural eco-economic system was 7.53E+18 sej before grain for green in watershed, and decreased 1.50E+17 sej after this policy. The production of agricultural products per unit area increased from 5.38E+15 sej/hm2 to 1.68E+16 sej/hm2 and emergy output of animal products decreased. The dominance index of system production increased from 0.60 to 0.72, the stability index of system increased from 0.51 to 0.53, and the population carrying capacity was also increased after grain for green. However, emergy investment ratio and environmental loading were nearly stable. Net emergy yield ratio increased from 0.11 to 0.29, and emergy per capita also change from 5.16×1015 sej to 5.41×1015 sej. Index of system sustainable development also increased from 2.55 to 6.69. After grain for green, the ratio of emergy-monetary was 2.21×1012 sej/$, which changed little as compared with before returning farmland. For sustainable and stable development of agricultural ecosystem in zhifanggou watershed, adjusting agricultural structure, optimizing the allocation of resource input, improving resource productivity and reducing the environmental loading were all needed in the next step. In this way, the agriculture of zhifanggou watershed could develop more sustainable and healthy.

Number of references:  23

Main heading:  Grain (agricultural product)

Controlled terms:  Economics  -  Ecosystems  -  Energy management  -  Environmental engineering  -  Investments  -  Landforms  -  Resource allocation  -  Restoration  -  Strategic planning  -  Waste disposal   -  Watersheds

Uncontrolled terms:  Agricultural eco-economic system  -  Ecological restoration  -  Emergy analysis  -  Grain for green policy  -  Loess hilly region

Classification code:  971 Social Sciences  -  525 Energy Management and Conversion  -  821.4 Agricultural Products  -  911.2 Industrial Economics  -  912.2 Management  -  912.3 Operations Research  -  913.5 Maintenance  -  481.1 Geology  -  454 Environmental Engineering  -  452.4 Industrial Wastes Treatment and Disposal  -  444.1 Surface Water  -  409 Civil Engineering, General  -  402 Buildings and Towers  -  454.3 Ecology and Ecosystems

DOI:  10.3969/j.issn.1002-6819.2009.06.050

Database:  Compendex

44.   Accession number:  20093212244222

Title:  Real-time path planning for citrus picking robot based on SBL-PRM

Authors:  Cai, Jianrong1 ; Wang, Feng1 ; Lü, Qiang1 ; Wang, Jianhei1 

Author affiliation:  1  School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China

Corresponding author:  Cai, J. (jrcai@ujs.edu.cn) 

Source title:  Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering

Abbreviated source title:  Nongye Gongcheng Xuebao

Volume:  25

Issue:  6

Issue date:  June 2009

Publication year:  2009

Pages:  158-162

Language:  Chinese

ISSN:  10026819

CODEN:  NGOXEO

Document type:  Journal article (JA)

Publisher:  Chinese Society of Agricultural Engineering, Agricultural Exhibition Road South, Beijing, 100026, China

Abstract:  A single-query bi-directional probabilistic roadmap planner with lazy collision checking was adopted for citrus picking robot real-time path planning in dynamic and unstructured environments. Simulation of the planner was carried out in two cases of picking exposed and overlapped fruits. The effects of maximum number of milestones S, neighboring threshold ρ, local path checking threshold Ε and path smoother steps N on average time and success rate of planning were analyzed. When S, ρ, Ε, and N were 3000, 0.6, 0.03, 10 respectively, simulation results indicated that the average planning time was about 1ms for picking exposed fruits and 60 ms for picking overlapped ones, and the success rates of planning were both 100%. The simulation experiment shows that SBL-PRM is effective in the citrus picking robot real-time path planning.

Number of references:  15

Main heading:  Planning

Controlled terms:  Fruits  -  Motion planning  -  Robots  -  Technological forecasting  -  Thermal stratification

Uncontrolled terms:  Bi-directional sampling  -  Citrus picking robots  -  Lazy collision checking  -  Real-time path planning  -  Single-query

Classification code:  901.4 Impact of Technology on Society  -  821.4 Agricultural Products  -  731.6 Robot Applications  -  731.5 Robotics  -  912.2 Management  -  723.4 Artificial Intelligence  -  441.2 Reservoirs  -  431.5 Air Navigation and Traffic Control  -  403 Urban and Regional Planning and Development  -  443.1 Atmospheric Properties

DOI:  10.3969/j.issn.1002-6819.2009.06.030

Database:  Compendex

45.   Accession number:  20093212244225

Title:  Extraction method of winter wheat phenology from time series of SPOT/VEGETATION data

Authors:  Lu, Linlin1 ; Guo, Huadong2 

Author affiliation:  1  State Key Laboratory of Remote Sensing Science, Institute of Remote Sensing Applications, Chinese Academy of Sciences, Beijing 100101, China

2  Center for Earth Observation and Digital Earth, Chinese Academy of Sciences, Beijing 100190, China

Corresponding author:  Guo, H. (hdguo@ceode.ac.cn) 

Source title:  Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering

Abbreviated source title:  Nongye Gongcheng Xuebao

Volume:  25

Issue:  6

Issue date:  June 2009

Publication year:  2009

Pages:  174-179

Language:  Chinese

ISSN:  10026819

CODEN:  NGOXEO

Document type:  Journal article (JA)

Publisher:  Chinese Society of Agricultural Engineering, Agricultural Exhibition Road South, Beijing, 100026, China

Abstract:  The extraction of crop phenology is very important. In recent years, there are many researches on phenology derivation from multi-temporal remote sensing data. But most of them focus on vegetation types like forests and grasslands. Since the temporal characteristics of winter wheat spectral index is different from above biomes, satisfactory phenology extraction results cannot be achieved using these methods. A novel curve fitting method is presented in this research. Using this method, detailed winter wheat phenology can be extracted from time series of SPOT/VEGETATION S10 product successfully. It was applied to a typical wheat site in Jining, Shandong Province. The results indicate that this method is robust to the noise in remote sensing dataset. Compared with other methods, time series of remote sensing data can be fitted to this model effectively, and realistic phenology results are detected.

Number of references:  34

Main heading:  Time series

Controlled terms:  Curve fitting  -  Remote sensing  -  Vegetation

Uncontrolled terms:  Crop phenology  -  Curve fitting methods  -  Data sets  -  Extraction method  -  Multi-temporal remote sensing  -  Phenology  -  Remote sensing data  -  Shandong province  -  Spectral indices  -  Temporal characteristics   -  Vegetation type  -  Winter wheat

Classification code:  922.2 Mathematical Statistics  -  921.6 Numerical Methods  -  921.4 Combinatorial Mathematics, Includes Graph Theory, Set Theory  -  821 Agricultural Equipment and Methods; Vegetation and Pest Control  -  731.1 Control Systems  -  525.1 Energy Resources and Renewable Energy Issues  -  461.9 Biology