42%乙·恶乳油防除花生田杂草的研究简报

Study on Weeding of Yi·E 42% WP in Peanut Field

小区试验结果,花生芽前喷施除草剂42%乙·恶乳油1125～1500mL/hm2对花生安全。药后20d对单、双子叶杂草的防效分别为94.8%～97.4%、85.7%～92.8%;药后50d的防效分别为92.9%～95.3%、87.2%～91.1%;鲜重总防效96.83%～97.0%。荚果增产229.6%～230.4%。明显优于50%乙草胺乳油对双子叶杂草的除草效果(78.6%～61.3%)。

Plot test of yi·E 42%WP on peanut showed that, when applied at a dosage of 1,125～1,500mL/ha, the preemergence herbicide was safe to the crop. The control efficiency for monocot and dicot weeds, were 94.8%～97.4% and 85.7%～92.8% 20 days after spraying (DAS), respecfively, and were 92.9%～95.3% and 87.2%～91.1% 50 DAS. The control efficiency ona fresh weight basis ranged from 96.83% to 97%. Treated plots had a pod yield superiority of229.6%～230.4%. As compared with Acetochlor 50% WP, the herbicide proved to be more effective in the control of dicot weeds.