80%莠灭净水分散粒剂防除甘蔗田杂草试验

Control Efficacy of Ametryn 80% WDG against Weeds in Sugarcane Fields

80%莠灭净水分散粒剂1500～3000g/hm2对甘蔗安全,可有效防除甘蔗田阔叶杂草,防效在90%以上,对禾本科杂草防效差,但对杂草的鲜重防效在91%以上。在相同剂量2250g/hm2情况下比较,80%莠灭净水分散粒剂对杂草的防效好于80%莠灭净可湿性粉剂。

Ametryn 80% WDG could effectively control various broad-leave weeds in sugarcane fields at the dose of 1500-3 000 g/hm^2 Its control efficacy against broad-leave weeds was more than 90%, but it showed a weak herbicidal activity to grasses. The control efficay against all weeds was over 91% based on weed fresh weight. At the same dosage of 2 250 g/hm^2, control efficacy of ametryn 80% WDG was better than ametryn 80% WP. Ametryn was safe to sugarcane.