Bounce Behavior and Regulation of Pesticide Solution Droplets on Rice Leaf Surfaces

文献类型： 外文期刊

第一作者： Zheng, Li

作者： Zheng, Li;Chen, Zhuo;Song, Baoan;Cao, Chong;Cano, Lidong;Huang, Qiliang

作者机构：

关键词： superhydrophobic surface; bounce behavior; pesticide solutions; unmanned aerial vehicle; water-in-oil emulsion; polymer emulsifier

期刊名称：JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY （ 影响因子：5.279； 五年影响因子：5.269 ）

ISSN： 0021-8561

年卷期： 2018 年 66 卷 44 期

页码：

收录情况： SCI

摘要： Pesticide spray droplets can damage ecological environments and negatively affect biodiversity if they reach nontarget areas. Effective retention of pesticide droplets on plant surfaces is an important challenge. In this study, a high-speed camera was utilized to visualize the bounce behavior of droplets of different pesticide solutions on rice leaf surfaces. We explored the addition of surfactants (SAAs) to different pesticide solutions and altered a pesticide solution system to prevent or regulate droplet bounce behavior. Experimental results indicate that the addition of SAAs to a pesticide solution can inhibit the bouncing of droplets on rice leaf surfaces. Additionally, a water-in-oil (EO) emulsion not only can significantly inhibit droplet rebound on a superhydrophobic surface, but also can quickly and automatically spread pesticide droplets to maximize the wetting area. Therefore, this work effectively improves the utilization of pesticides and reduces environmental pollution.

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