使用一种从植物中提制的夭然甾体激素——“保鲜素”喷施移栽棉苗,活棵快、现蕾早,并可增加铃重。1985年10月9日经上海市农业技术推广站、华东师大、市农科院等单位专家评审,通过鉴定。“保鲜素”是上海农药研究所研制提供,由上海农学院农学系棉花课题组教师沈仍愚、陈铭获、叶惠珍等进行试验。经1982～1984年连续测试,证明以5ppm浓度在栽前喷施效果最佳,与不喷的对照组比,栽后叶片黄落减少,新叶出生,花芽分化加快,株高增长,现蕾提早3～6天,铃重增加也较显著。去年,上海农学院与市农药所、上海县七一乡、南汇县坦直乡农科所和种子场共同协作,在80余亩棉田 Cotton seedlings are transplanted using a natural steroid hormone called “Freshener” extracted from plants, which plants quickly and quickly, and can increase boll weight. October 9, 1985 by the Shanghai Agricultural Technology Extension Station, East China Normal University, City Academy of Agricultural Sciences and other units expert assessment, through the identification. “Preservatives” is provided by the Shanghai Institute of Pesticide Research, by the Department of Agronomy, Shanghai Agronomy Cotton Group teachers Shen still stupid, Chen Ming, Ye Huizhen and other experiments. After continuous testing from 1982 to 1984, it was proved that spraying with 5ppm concentration had the best spraying effect before planting. Compared with the non-spraying control group, the yellowing of leaves was reduced, the new leaves were born, flower bud differentiation accelerated, plant height increased, 3 to 6 days earlier, boll weight increase is also more significant. Last year, Shanghai Agricultural College and the Municipal Pesticide Institute, Shanghai Qiyi Township, Nanhui County Tan straight Township Agricultural Institute and seed field work together in more than 80 acres of cotton fields