新疆棉区多年来一直延用氟乐灵进行化学除草 ,由于该药剂属于长残留农药 ,在土壤中积累过多 ,对部分棉苗产生药害 ,而且易光解 ,必须逐渐予以取代。为此 ,我们于 1998年引进新型禾耐斯除草剂进行了棉田除草试验 ,现将试验结果报告如下。1　供试药剂和方法1.1　供试药剂及用量90 Xinjiang cotton has been extended with trifluralin chemical weeding for many years, because the agent belongs to the long residual pesticides, accumulated too much in the soil, some of the cotton seedlings produce phytotoxicity, and easy to photolytic, must be gradually replaced. To this end, we introduced in 1998 a new type of herbicide Wo Site weeding cotton weeding test, the test results are reported below. 1 for the test agents and methods 1.1 test agents and dosage 90