15%精喹禾灵乳油防除春油菜田野燕麦试验

Study on control experiment of Quizalofop-p-ethyl 15% EC on wild oats in spring planting rape field

为了更好防治春油菜田野燕麦杂草,在青海省对15%精喹禾灵乳油防除春油菜田野燕麦的效果及其对作物的安全性进行田间小区试验。结果表明,15%精喹禾灵乳油不同制剂量于野燕麦3-4叶期(春油菜3-4叶期)兑水300 L/hm2茎叶喷雾,对野燕麦的防除效果达到73.64%-96.21%,各处理区油菜生长正常。15%精喹禾灵乳油安全性好、防效高、持效期长,可进一步示范推广。

The research aimed to control wild oats better in spring planting rape field.The field plot experiment with quizalofop-p-ethyl 15% EC was carried in Qinghai to study the control effect and safety of that herbicide.When the different dose of quizalofop-p-ethyl 15% EC was sprayed during 3-4 leaves in wild oats（i.e.3-4 leaves in spring planting rape）,the control effect reached 73.64%-96.21% and was equivalent to that of quizalofop-p-ethyl 5% EC.20 d after herbicide application,spring planting rape got the normal growth in each treatment area.With the advantages of safety,good control effect and long action cycle,quizalofop-p-ethyl 15% EC could be generalized in field.