目前抗虫杂交棉种植中存在的问题有:种植密度越来越稀,单产水平下降,植棉效益降低;常规施肥次数多,追肥操作不便,造成肥料利用率低,效益低,还产生面源污染;除草剂滥用导致棉花药害发生的现象普遍,灭生性除草剂草甘膦缺乏解毒安 At present, the problems existing in insect-resistant hybrid cotton planting are as follows: the planting density is getting thinner and the yield is lower, and the cotton planting benefit is reduced; the conventional fertilizing times are more inconvenient for top dressing operation, resulting in low fertilizer utilization efficiency and low production efficiency Pollution; herbicide abuse led to the phenomenon of phytotoxicity in cotton generally, the lack of glyphosate herbicide detoxification safety