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化学控制,是根据棉花生长发育的特点和各种化学农药(杀虫剂、杀菌剂、杀螨剂、生长调节剂、除草剂、脱叶剂、催熟剂、激素等)固有的生理活性、作用机制,经济有效,合理安全的应用于棉花生产过程中,代替人工(机械)田间作务管理,促进各种矛盾转化朝着有利于高产、稳产、低成本、省劳力的方向发展。化学控制的效果十分明显,有些作用是其它措施无法代替的。其主要优点:(1)提高劳动生产率,减轻劳动强度,降低生产成本。(2)经济有效的控制病虫杂草为害。(3)调节棉花生长发育进程。促进发芽、生长、成熟;防止徒长和
Chemical control is based on the characteristics of cotton growth and development and the inherent physiological activity of various chemical pesticides (pesticides, bactericides, acaricides, growth regulators, herbicides, defollers, ripening agents, hormones, etc.) Mechanism of action, economic and effective, reasonable and safe application of cotton production process, instead of artificial (mechanical) field operations management and promote the transformation of various contradictions in favor of high yield, stable production, low cost, labor-saving direction. The effect of chemical control is very obvious, some of the effects can not be replaced by other measures. Its main advantages: (1) to improve labor productivity, reduce labor intensity, reduce production costs. (2) Economical and effective control of pests and weeds damage. (3) regulate the process of cotton growth and development. Promote germination, growth, maturity; prevent leggy growth