引进和推广无毒棉,棉子棉酚含量低(0.02—0.04％以下)的棉花品种,是当前棉花生产上的一项重要工作。据据中棉所的精神,我所1984年开始引进无毒棉品种进行探讨试验,初步获得成功,亩产皮棉75.78斤;1985年亩产皮棉117.1斤。总结两年来的经验教训,现将无毒棉的栽培技术介绍如下: 1、选用地势高爽,排灌方便的地块 无毒棉生长发育快,吐絮早,地势低洼,排水不良的地块遇雨水偏多的年份易发生僵瓣烂铃,影响产量和品质。因此,应选择地势高爽,排灌方便的地块种无毒棉。另外,整地须在天晴地干时进行,整细土块,开好三 The introduction and promotion of non-toxic cotton, cotton gossypol content is low (0.02-0.04%) of cotton varieties, cotton production is an important work. According to the spirit of the CIMC, I began to introduce non-toxic cotton varieties in 1984 to explore the trial, initially successful, 75.78 kg per mu lint; litchweed 117.1 kg per mu in 1985. Summarize the experience and lessons of the past two years, now the introduction of non-toxic cotton cultivation techniques are as follows: 1, selection of high terrain, drainage and convenient plots of non-toxic cotton growth and rapid development, boll flow early, low lying, poor drainage parcel case of rain Too many years prone to dead valve rotten bell, affecting yield and quality. Therefore, we should choose high-altitude terrain, irrigation and drainage of plots of non-toxic cotton species. In addition, the preparation of soil should be carried out in fine weather, fine soil, open three