旱作丰5EC防除大豆田禾本科杂草药效试验

The Chemical Experiment in the Coutrol of Weeds in Soybean Field with Quizalofop- P- ethyl 5 EC

旱作丰(quizalofop P ethyl)5EC每公顷用商品量600～750ml,在大豆田禾本科杂草2～5叶期用药1次,速效性好,防效高达94.5%～95.8%,大豆增产34.6%～38.3%,且对大豆安全。