Effect of droplet size, leaf characteristics and angle on pesticide deposition

Effect of droplet size, leaf characteristics and angle on pesticide deposition was investigated to increase the pesticide usage efficiency. Nozzles of ST110-01, ST110-02, ST110-03, ST110-04, ST110-05 and IDK120-03 were compared with leaf angles at 0°, 15°, 30°, 45°, 60° and 75° on cotton, rice and wheat, respectively. The results demonstrated that leaf characteristics and angle had a significant effect on deposition, while the effects of nozzle type or droplet size were not significant. The deposition increased as the leaf angle decreased. The micro-structure of leaf may cause the different deposition. The research involved in this paper will provide the valuable basis for the pesticide efficiency enhancement.