8%精喹·乳氟禾乳油防除花生田杂草试验

Experiments of Quizalofop-P-ethyl+Lactofen 8% EC Controlling Weeds in Peanut Field

为明确8%精喹·乳氟禾乳油防除花生田杂草的效果和对花生的安全性,采用田间小区试验的方法,观察其对花生田杂草的防效和对花生产量的影响。结果表明,8%精喹.乳氟禾乳油有效成分用量100.0～240.0 g/hm2对花生田马唐、牛筋草、反枝苋、马齿苋等杂草均有好的防治效果,药后20 d,总体株防效为96.45%～99.68%,鲜重防效97.93%～99.83%。对作物花生安全性较好,药后部分叶片出现药害斑,不扩展,可恢复,对花生苗期生长无影响,增产率33.42%～47.33%。

The yield potential and production safety of peanut were researched by small-sized trail to evaluate the effects of quizalofop-P-ethyl ＋ lactofen 8% EC on weeds control.The results showed that quizalofop-P-ethyl ＋ lactofen 8% EC had good effect on weeds control including Digitaria sanguinalis,Eleusine indica,Amaranthus retroflexus,Portulaca oleracea and so on at a dosage of 100.0-240.0 g/hm2 in peanut field.The plant control effects were between 96.45% and 99.68%,while fresh weight control effects were 97.93%-99.83% after 20 d for treatment.It was safe to peanut growth and could increase yield by 33.42%-47.33%.