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采用高倍电子显微镜连续拍摄,记录农药雾滴在小白菜叶面上的整个蒸发过程,在农药中添加8种不同的表面活性剂并通过雾滴发生器产生单个雾滴,进而研究农药雾滴对小白菜叶面上蒸发时间和覆盖面积的影响;对比雾滴在玻璃片上和小白菜叶面上的扩展方向.试验得出,其中3种有机硅表面活性剂L-911,Tech-408和Fairland对农药雾滴在小白菜叶面上蒸发时间和覆盖面积影响较大,其他5种表面活性剂影响较小;小白菜叶面上不同部位,其亲水性是不同的,靠近叶脉的部位,其亲水性比叶面平整部位的亲水性能要好.文章为在小白菜施药过程中表面活性剂的选择和提高施药效率提供了一定依据,并对农药雾滴在小白菜叶面上的扩展趋势做了初步研究.
Using high power electron microscopy continuous shooting, record pesticide droplets in the whole cabbage leaf evaporation process, adding eight different surfactants in pesticides and through the droplet generator to produce a single droplet, and then study the pesticide droplet pairs The effect of the evaporation time and the coverage area on the leaf surface of cabbage was compared with that of the droplet on the glass leaf and the leaf surface of the cabbage.The results showed that three kinds of silicone surfactants L-911, Tech-408 and Fairland Pesticide droplets on the cabbage leaf surface evaporation time and coverage of a larger impact, the other five surfactants less affected; cabbage leaf surface in different parts of the hydrophilic is different, close to the site of the veins, Its hydrophilicity is better than that of the flat part of the foliage.It provides some evidences for the choice of surfactants and the improvement of pesticide application efficiency in the process of cabbage spraying.The pesticide drops on the foliage of cabbage The expansion trend made a preliminary study.