42%威百亩水剂对辣椒苗床杂草的防效

Effect of 42% Metham-sodium Aqueous Solutiongs on Weeds in Pepper Seedbed

为了评价42%威百亩水剂对辣椒(Capsicum annuum L.)苗床杂草的防除效果,采用随机区组设计进行了田间药效试验。结果表明:42%威百亩水剂对辣椒苗床常见杂草马唐、牛筋草和凹头苋有很好的防除效果,随着药量增加防效逐渐提高。药后40d对杂草综合数量的防效达90%以上,鲜重防效为91.18%～100%,优于氟乐灵常规剂量处理。

In order to evaluate the effect of 42%metham-sodium aqueous solution on the control of weeds in pepper(Capsicum annuum L.)seedlings,a field trial was conducted by using randomized block design.The results showed that 42%metham-sodium aqueous solution agent had good control effect on the common weeds of the pepper seedlings,such as Digitarias anguinalis(L.)Scop.,Eleusine indica(L.)Gaertn.and Amaranthus lividus L.,and the effect was gradually improved with theincrease of dose.The control effect on the comprehensive amount of weeds is over 90%after 40 days,and the fresh weight control effect is 91.18%~100%,which is better than the conventional dose treatment of trifluralin.