35%E501可湿性粉剂防除稻茬麦田禾本科杂草的研究

On Utilization of 35%E501WP to Control Gramineae Weeds in Wheat Filed after Rice

35 % E5 0 1可湿性粉剂可有效防除稻茬麦田禾本科杂草 ,其经济安全有效的使用量为每 3.0 0 kg/ hm2 ,除草效果显著优于 2 5 %绿麦隆可湿性粉剂 ,35 % E5 0 1可湿性粉剂在杂草三叶期以前使用效果最佳。

The exeriments indicated that the WP (35%E501) could effectively control Gramineae Weeds of Wheat field after rice, the result was much better than that of herbicide chlortoluron. The economical closage of WP (35%E501) is 3.00kg/hm 2 when weeds were in 3 leaf period.