东北地区主要玉米田除草剂的药效试验

Control Effect of Main Herbicide Varieties in Corn Field of Northeast Area

为比较玉米田除草剂的药效、成本及安全性,选择了近年来东北地区玉米田主要登记的8种除草剂,进行了田间小区试验。结果表明,40%异丙草·莠SE苗前封闭除草效果最好,鲜重防效和株防效分别为97.0%、96.9%,且安全性好,成本为90元/hm2;20%嗪·辛·烟嘧OF苗后使用除草效果最好,鲜重防效和株防效分别为98.4%、98.5%,且安全性较好,成本为120元/hm2。

In order to compare herbicide of corn field control effect ,cost and safety, the result of 8 herbicides which registered in northeast area were used in the corn field trails ,it showed that the mixture 40% propisochlor-atrazine and 20% fluthiacet-methyl-bormoxynil-octanoate bromoxynil have good control effect to different weeds, and fresh weight control effect was 97.0% and 98.4%, integrated plant control effect was 96.9% and 98.5%, provided consistent weed control with good safety to corn, and cost was low.