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增效剂【指-2-氯-6-(三氯甲基)吡啶】代号CP,在国外60年代初已开始研制。美国于1975年秋才得到国家批准作为农业化学品永久注册。在玉米、小麦、高梁、棉花等作物上有增产效果,对上述作物也没有残毒。我国从1969年起已经开始试制,经过十年来的试验研究证明,对禾谷类作物确有增产效果,而对大豆生长则有抑制作用。为了弄清CP在不同浓度和质量条件下,对大豆当年为害程度以及对套种、复种大豆能否产生药害,于1977年进行了下列试验。
Synergist 【Refers to -2-chloro-6- (trichloromethyl) pyridine】 Code CP, foreign countries in the early 60s has begun to develop. The United States received state approval in the autumn of 1975 as a permanent registration of agricultural chemicals. In the corn, wheat, sorghum, cotton and other crops yield increase effect, there is no residual residue on the above crops. Since 1969, our country has begun trial production. After ten years of experimental research, it has been proved that it can increase the yield of cereal crops and inhibit the growth of soybean. In order to clarify the CP in different concentrations and quality conditions, the degree of damage to the year soybean and interplanting, multiple cropping can produce phytotoxicity, in 1977 the following tests were carried out.