华南农业大学学报2016，Vol.37Issue(6)：1-9,9.DOI:10.7671/j.issn.1001-411X.2016.06.001
农药喷雾粒径的研究现状与发展
Research status and development of pesticide spraying droplet size
摘要
Abstract
[Objective] Excessive application of pesticide has adverse impact on the quality and safety of agricultural products and ecological environment in China .It has become critical to optimize the pesticide spraying approach and improve the pesticide utilization and spraying effect.[Method] Droplet size detec-tion technology development and the relationship between droplet size and control effect were introduced based on the investigation on present testing methods of pesticide droplet size.The theory of optimum spraying droplet size was discussed.Method to determine optimum spraying droplet size and current research status were analyzed.Existing problems of optimum pesticide spraying droplet size were summa-rized.Suggestions were proposed for future research of spraying droplet size in agricultural aviation.[Result] The optimum droplet size achieved from artificial surface is inconsistent with actual optimum size in real spraying operation.Artificial surfaces tend to collect only large droplets.Massive drift does not inevitably occur to small droplets.The optimum particle size of the spray is changing in different stages of the same target.A large number of experimental data have showed that small droplets were more easily adsorbed on the surface of target to kill pests by penetrating inside the plant canopy .[Conclusion]The best spraying particle size varies very much for different pesticides, targets or liquid concentrations, even in different growth periods of pests.In the future, theoretical study on optimum pesticide droplet size should be strengthened from multi-angle macroscopic and microscopic analysis.In addition, preci-sion controllable nozzles with variable diameter must be developed for agricultural aviation applications.关键词
农药喷雾/雾滴粒径/检测方法/生物最佳粒径/精准施药/农业航空Key words
pesticide spraying/droplet size/detection/biological optimum size/precision spraying/agricultural aviation分类
农业科技引用本文复制引用
兰玉彬,彭瑾,金济..农药喷雾粒径的研究现状与发展[J].华南农业大学学报,2016,37(6):1-9,9.基金项目
国家重点研发计划项目 （）
