69g/L精恶唑禾草EW防除麦田野燕麦研究

目的]更好的防治春麦田野燕麦杂草。方法]在青海省对69 g/L精恶唑禾草EW防除春小麦野燕麦的效果及其对作物的安全性进行了田间小区试验。结果]69 g/L精恶唑禾草灵EW不同制剂量于野燕麦2~3叶期(春小麦3~4叶期)兑水300 L/hm2茎叶喷雾,对野燕麦的防除效果达88.41%~98.57%,除草效果和对照药骠马相当。药后20 d,各处理区小麦生长正常。结论]69 g/L精恶唑禾草EW安全性好、防效高、持效期长,可进一步示范推广使用。

Study on Control Experiment of Fenoxaprop-p-ethyl 69 g/L EW on Wild Oats in Wheat Field

Objective] The research aimed to control wild oats better in wheat field.Method] The field plot experiment with Fenoxaprop-p-ethyl 69 g/L EW was carried out in Qinghai to study the control effect and safety of that herbicide.Result] When the different dose of Fenoxaprop-p-ethyl 69 g/L EW was sprayed during 3-4 leaves in wild oats(i.e.3-4 leaves in wheat),the control effect reached 88.41%-98.57% and was equivalent to that of Puma Super EW.20 d after herbicide application,wheat got the normal growth in each treatment area.Conclusion] With the advantages of good safety,good control effect and long action cycle,Fenoxaprop-p-ethyl 69 g/L EW could be generalized in field.