无人机飞防用药剂质量控制要素

Quality Control of Pesticides Applied with Unmanned Aerial Vehicles

目前用于水稻、小麦的无人机飞防用药剂是由农药制剂产品、植物营养剂、生长调节剂、飞防专用助剂及去离子水桶混而成的均匀混合飞防液产品。为使无人机飞防作业达到安全高效、剂型合理、抗挥发和飘失、沉积附着性能好之飞防目的,需对飞防药剂质量要素:稀释稳定性、药剂悬浮率、喷洒漂移范围、雾滴垂直沉积密度、抗雨水冲刷率(滞留率)质量要素进行有效控制。以41%甲基硫菌灵+戊唑醇复配杀菌悬浮剂、植物营养剂、生长调节剂、飞防专用助剂及去离子水桶混而成的飞防用药剂为例,介绍了飞防用药剂5个质量指标测定方法及测定结果。

Substances used for protection of the rice and wheat through unmanned aerial vehicles consist of pesticide products,plant nutrients,growth regulators,special additives and deion water.To ensure the agents safe,effective,not easy to volatile and drift,good deposition and adhesion after aerial application,dilution stability,suspension rate,spray drift,vertical deposition density of droplets,resistance to the rain washing need to control.This paper takes the agents consisting of thiophanate-methyl·tebuconazole 41%SC,plant nutrients,growth regulators,special additives and deion water as example,and describes the methods of determining five quality index of the mixture and the results.