20%精喹·乙羧氟草醚EC除草效果及对大豆安全性研究

Study on Weed Control Efficacy and Soybean Injuries of 20% Quizalofop-P-ethyl·Fluoroglycofen EC

用 2 0 %精喹·乙羧氟草醚EC在大豆 3～ 4片复叶期进行茎叶处理 ,研究其除草效果及安全性。结果表明 :该药剂对大豆田杂草防除效果理想 ,但对大豆有一定药害 ;适宜剂量对大豆有轻微药害 ,但基本不影响产量。

Weed control efficacy and crop injuries were study on 20% quizalofop-P-ethyl·fluoroglycofen Ec spraying in 3～4 trifid leaf stages of soybean. The results showed that excellent weed control efficacy was attained. Light soybean injuries were observed. At the rate of 450～600 mL/hm 2,the yield of soybean wasn't mostly influenced by the herbicide.