为解决棉株在高温多雨条件下徒长,生育失调,1980年北京农业大学农药研究室合成了一件优良高效的内吸性棉花生长调节剂——缩节安。三年来在15个省市、自治区的10万亩棉田进行试验证明,经缩节安处理后可使棉株稳长,株型矮健,内 In order to solve the cotton plant under the conditions of high temperature and rainy growth, maladjustment, in 1980 Beijing Agricultural University Laboratory of pesticides synthesized a good and efficient systemic cotton growth regulator - Shuananan. Three years in 15 provinces and autonomous regions of 100000 acres of cotton fields to prove that the shrinkage-An after treatment can make the cotton plant a long, short plant type, within