33%二甲戊灵乳油防除棉花田杂草试验

Experiment of 33% Pendimethalin EC on Weeds in Cotton Field

为了探讨防除棉花田杂草适宜药剂,在田间条件下,对33%二甲戊灵乳油在棉花田的除草效果以及对棉花的安全性进行了试验研究。结果表明:33%二甲戊灵乳油在2 700～3 000mL.hm-2剂量下对棉花田单、双子叶杂草均有较好的防效,并且对棉花安全无害,对环境友好,具有广阔的推广前景。

In order to study the appropriate herbicide on controlling cotton weeds, the efficacy and security of 33 % pendimethalin EC were tested in cotton field. The result showed that the herbicide offered high activity against weeds in cotton field at 2 700-3 000 mL·hm^-2. Furthermore, the phytotoxicity to cotton plant was not observed in test period. It was an environment-friendly product with a broad prospect of application.