除草剂一号除草剂一号即4氯苯取代硫尿,是一种根部内吸兼有触杀作用的除草剂。在麦子播种后,每亩用50%的可湿性粉剂4～6两,加水120斤喷雾,对看麦娘、繁缕、碎米荠、臭荠等杂草,防除效果达85%以上。使用除草剂一号必须注意下述几点:1.用药时间:除草剂一号对麦苗叶片 Herbicides No. 1 Herbicide No. 1, 4-chlorobenzene, replaces sulfururia, a kind of herbicide that induces both contact and kill in roots. After sowing in wheat, per mu with 50% of wettable powder 4 to 6 two, add water 120 kg spray, to see Amanita, chickweed, chestnut water chestnuts, water chestnuts and other weeds, control effect of more than 85%. The use of herbicides on the 1st must pay attention to the following points: 1. Medication time: herbicides on wheat seedling leaves