植物角质层是地上植物组织和环境之间的接触面。它主要由内部的角质和表皮蜡质组成,后者可能以一个无固定形状的膜或者晶体结构排列。这些直接影响叶片的微结构和表面润湿性,是农药沉积和吸收的重要参数。农药溶液被喷雾后雾化,农药液滴沉积在角质层上,而角质层限制植物吸收农药 The stratum corneum is the interface between plant tissue on the ground and the environment. It is mainly composed of internal keratin and epidermal wax, which may be a non-fixed shape of the film or crystal structure. These directly affect the leaf microstructure and surface wettability, is an important parameter of pesticide deposition and absorption. Pesticide solution is sprayed after atomization, pesticide droplets deposited on the stratum corneum, and the stratum corneum to limit plant absorption of pesticides