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在美国,病虫害的防治是苹果生产成本中花费最大的部份。由于农药的大量施用,设备、劳务、材料不断涨价,环境日益受重视,因此每次用药都应尽可能地有效。用空气喷雾器施药,叶面附着的农药在树冠里的分布是不均匀的。为了研究影响农药附着的因素,为了改进施药技术,哪么就需要确定农药在叶面和果上的附着量和分布情况。有
In the United States, the control of pests and diseases is the largest part of Apple’s production costs. Due to the large-scale application of pesticides, equipment, labor, materials, constantly rising prices, the environment is increasingly valued, so every time medication should be as effective as possible. Sprayed with an air spray, the distribution of pesticides attached to the foliage in the canopy is uneven. In order to study the factors that affect pesticide attachment, in order to improve the application technique, it is necessary to determine the amount and distribution of pesticides on the foliage and fruit. Have