据试验:直播油菜田在油菜播种后到子叶期,每亩用50％杀草丹乳油2—3两,兑水80斤,对畦面均匀喷雾;或拌过筛润细土40斤均匀撒施。对看麦娘的防除效果平均为86.68—89.30％。到两张真叶期用药,只要看麦娘在3叶期之前,防除效果仍可达84.15％。但到三张真叶以后用药,效果极差。方法上无论喷雾或毒土,只要均匀周到,均有良好效果。试验 According to the test: Live rapeseed rapeseed sowing to the cotyledon stage, 50% per mu with kill grass Dan EC 2-3 two watered 80 kg of noodles evenly spray; Shi. On the look Amarone control effect of an average of 86.68-89.30%. To two real leaves of the drug, as long as the mother in the 3rd leaf stage, the control effect is still up to 84.15%. However, after three leaves really medication, the effect is very poor. Regardless of the method of spraying or poisonous soil, as long as uniform and thoughtful, have good results. test