除草剂油达防除油菜地杂草试验

Effects of Youda Weed Killer on Controlling Weeds in Rape Fields

测定了油达对油菜地杂草防除效果及油菜的安全性。试验结果表明,在油菜地喷施油达,可有效控制杂草的危害,且对油菜安全,适宜喷施量为50mL/667m2;施药后15d、30d,油达对油菜地杂草防效达71.05%～90.13%;药后45d防治小区杂草鲜重仅为对照的5.56%～20.27%。

The experiment was conducted to investigate effects of Youda weed agent on controlling weeds in rape fields. The results indicate that Youda weed agent can control weeds in rape fields effectively and does not affect the rape growth. The optimum applying amount is 50 mL/667m^2. The effect of controlling weeds in rape fields can be up to 71.05%-90.13% after 15 d and 30 d, the weed fresh wight of te controlling plot affer 45 d is only 5.56%-20.27% compared with CK.