3.6%二磺·甲碘隆水分散粒剂防除小麦田杂草药效试验

Control Effect of 3.6% Mesosulfuron-methyl·Iodosulfuron-methyl-sodium Water Dispersible Granule against Weeds in Wheat Field and Safety to Wheat

为明确3.6%二磺·甲碘隆水分散粒剂防除小麦田杂草的防治效果和对小麦的安全性,采用田间小区试验,研究3.6%二磺·甲碘隆水分散粒剂对小麦田杂草的防效和对小麦产量的影响。结果表明,3.6%二磺·甲碘隆水分散粒剂有效成分用量为8.1~21.6 g·hm^(-2)时对播娘蒿、荠菜、看麦娘、野燕麦等杂草均有较好的防治效果,药后40 d总株防效均在87%以上、鲜质量防效均在88%以上,且对小麦安全性较好。结果可为3.6%二磺·甲碘隆水分散粒剂的大面积推广提供理论依据。

To clear control effect of 3.6% Mesosulfuron-methyl＂ Iodosulfuron- methyl-sodium water dispersible granule against weeds in wheat field and safety to wheat, this paper studied the control effect of 3.6% Mesosulfuron- methyl. Iodosulfuron-methyl- sodium water dispersible granule against weeds in wheat field and safety to wheat by plot test. The results showed that 3.6% Mesosul- furon-methyl. Iodosulfuron-methyl-sodium water dispersible granule applied at 8.1-21.6 g. hm-2 had good control effect on Descu- rainia sophia Descurainid sophia （L.） Webb. ex Prantl, Capsella bursa-pastoHs Medic, Alopecurus aequalis Sobol and Avena [atua L, and the plant control effect and flesh quality control effect in 40 days after treatment were 87.23%-96.43% and 88.25%-96.85%, re- soectively, furthermore it was safe to wheat. The results would provide theoretical basis for the promotion of 3.6% Mesosulfuron- methyl-Iodosulfuron-methyl-sodium water dispersible granule in large area.