本地区棉花苗床草害十分严重,其优势种为千金子、马唐、稗草等禾本科杂草。采用绿麦隆可湿性粉剂除草,由于苗床面积小,施药时称取药量不易准确,常常产生药害或降低效果。为解决这一问题,本站于1988年进行了丁草胺、敌草胺乳油防除棉花、苗床杂草的试验与示范,取得了较好的效果。现将有关结果报道如下: Cotton seedbed grass weeds in the region is very serious, the dominant species of gold, crabgrass, barnyardgrass and other grass weeds. Chlormequat WP weeding, due to the small area of ​​the seedbed, dosage is not easy to accurately measure when administered, often resulting in phytotoxicity or reduce the effect. In order to solve this problem, we carried out the tests and demonstration of butachlor and nophal EC against cotton and weed weeds in 1988 and achieved good results. The relevant results are reported below: