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“保棉丰”是中国农业科学院植物保护研究所1964年下半年新合成的药剂。是一种具有一定内吸作用的杀虫剂,由剧毒有机磷农药“3911”氧化成“3911亚砜”而得。自1953年以来,由于广大棉区常年多次使用单一农药“1059”,使害虫产生抗药性。有的地区“1059”浓度由稀释2000倍提高到500倍,也不能解决问题,农田成本随之增高,农药进口量也加大,而且“1059”对人、畜均有剧毒,易造成中毒事故;而用50%“保棉丰”
“Paul cotton abundance” is Institute of Plant Protection, Chinese Academy of Agricultural Sciences in the second half of 1964 the newly synthesized pharmaceutical agent. Is a kind of insecticide with a certain systemic effect, the toxic organic phosphorus pesticide “3911” oxidation to “3911 sulfoxide” derived. Since 1953, pests have become resistant to pests due to the repeated use of single pesticide “1059” in the cotton area throughout the year. In some areas, the concentration of “1059” is increased from 2000 times to 500 times, which will not solve the problem. The cost of farmland will increase and the import of pesticides will also increase. Moreover, “1059” is highly toxic to humans and animals and can cause poisoning Accident; but with 50% “insurance cotton abundance”