50%敌草胺可湿性粉剂防除烟地杂草试验

Effect of weed control in tobacco field by spraying 50% napropamide WP

通过喷施 5 0 %敌草胺可湿性粉剂覆盖农膜防除烤烟地杂草试验 ,结果表明 ,不同处理的除草剂对烤烟地一年生禾本科杂草的防效很好 ,对双子叶杂草稍差。 30d、60d调查 ,总防除效果在87 4 %～ 93 8% ,其中对禾本科杂草防效为 83 8%～ 97 3% ,对双子叶杂草的防效为 4 0 2 %～71 2 %。用 5 0 %敌草胺可湿性粉剂除草剂盖地膜防除烟地杂草对烤烟不造成药害 ,生长安全 ,无不良影响。

Effects of weed control in tobacco fields by 50% napropamide WP covering were studied.The results showed the efficiency of the herbicide was better to monocotyledon gramineous weeds than to dicotyledou weeds.The total rate of control was 87.4%-93.8% in 30 days and 60 days after transplanting,and 83.8%-97.3% to gramineous weeds,and 40.2%-71.2% to dicotyledon.No pollution and other negative effects of 50% napropamide WP in the field covering film were observed on growth and development of tobacco.