几种除草剂对冬甘蓝田杂草防除效果及安全性

Efficacy and Selectivity of Several Herbicides on Weeds in Winter Cabbage

杂草危害是制约甘蓝产业发展的重要因素,为筛选高效、低毒、安全的冬甘蓝田除草剂,选用5种除草剂进行比较试验。结果表明:25%砜嘧磺隆水分散粒剂对冬甘蓝田杂草总株数防效和总鲜质量防效最高,17.5%精喹·草除灵乳油、330 g/L二甲戊灵乳油防效次之,900 g/L乙草胺乳油的防效最低。建议生产上可选用25%砜嘧磺隆水分散粒剂、330 g/L二甲戊灵乳油和17.5%精喹·草除灵乳油防除冬甘蓝田杂草。

Weed damage is an important factor restricting the development of cabbage industry. Therefore, five herbicides were evaluated in a winter cabbage field for the selection of efficient,low phytotoxic and safe herbicides.Rimsulfuron 25% WDG was the most effective in controlling weeds（based on their density and fresh weight） in cabbage fields,followed by quizalofop-p·plus benazolin 17. 5% EC,pendimethalin 330 g/L EC; acetochlor 900 g/L EC was the least effective. Therefore,rimsulfuron 25% WDG,pendimethalin 330 g/L EC and quizalofop-p·benazolin17. 5% EC can be applied to control weeds in winter cabbage.