五种苗后除草剂的活性及对花生安全性测定

Activity and Peanut Injury with Five Postemergence Herbicide Mixtures

室内测定了 5种茎叶处理剂对花生的安全性及对稗草、马唐、反枝苋、马齿苋的活性。结果表明 ,15 %精喹·乙羧对各种杂草的株防效最好 ,其次为 16 %稀禾定·氟稀草酸和 6 %精喹·嗪草酸乳油 ,32 %精喹·广·三氟羧的活性略低。 32 %精喹·广·三氟羧和 16 %稀禾定·氟稀草酸对花生较安全 ,6 %精喹·嗪草酸乳油对花生不安全。

Peanut injury and activity of five postemergence herbicide mixtures against Digitaria sanguimalis,Echinochloa crus-galli,Amaranthus retroflexus,and Portulaca oleracea were determined under greenhouse conditions.Weed control was best with a 15% quizalofop-ethyl plus fluoroglycofen formulation,followed by a 16% sethoxydim plus flumiclorac-pentyl mixture,and a 6% quizalofop-ethyl plus qincaosuan emulsifiable concentrate.A 32% quizalofop-ethyl plus clomazone plus aciflurofen formulation provided slightly lower control.The best crop safety to peanuts was provided by 32% quizalofop-ethyl plus clomazone plus aciflurofen and 6% sethoxydim plus flumiclorac-pentyl.A 6% quizalofop-ethyl plus qincaosuan formulation injured peanuts.