在农药使用中,有时从保管员手中领来的杀虫剂打到棉花上,害虫不死而棉花反而受害,查其原因是误把除草剂当杀虫剂使用;有的乳剂出现变质、水剂发生沉淀、粉剂受潮结块等现象;更严重的是有把剧毒农药误作一般农药使用,引起人畜中毒。同时由于各种农药又分别具有一定的理化特性,受到光、温度、湿度等影响,或接触火源、遇到撞击,以及保管不当,就容易发生各种物理和化学变化,促成燃烧、吸湿、挥 In the use of pesticides, sometimes from the hands of custodians to the insecticide hit the cotton, insects and insects instead of cotton victims, check the reason is mistaken for the use of herbicides as insecticides; some emulsion deterioration, the agent Precipitation, dust damp agglomeration and other phenomena; more serious is the mistaken use of highly toxic pesticides in general pesticides, causing human and animal poisoning. At the same time, because various pesticides have certain physical and chemical properties, respectively, affected by light, temperature and humidity, or come into contact with sources of ignition, encounter impacts and improper storage, various physical and chemical changes are likely to occur, resulting in combustion, hygroscopicity, Play