27%硝磺草酮·异噁唑草酮·莠去津悬浮剂防除玉米田杂草田间药效试验

Field efficacy trials of mesotrione·isoxaflutole·atrazine 27% SC

为验证27%硝磺草酮·异噁唑草酮·莠去津悬浮剂对玉米田常见杂草的防治效果及对玉米的安全性,采用土壤封闭处理,定期调查的方法进行田间药效试验。结果显示27%硝磺草酮·异噁唑草酮·莠去津悬浮剂在使用剂量为200 g/666.7 m^2~300 g/666.7 m^2对玉米田禾本科杂草和阔叶杂草的土壤封闭处理效果较好。施药30 d后,对所有杂草的整体防效均能达到90%以上,而对照药剂效果低于50%。同时27%硝磺草酮·异噁唑草酮·莠去津悬浮剂对玉米表现出较高的安全性,展现了优异的产品性能及市场推广应用价值。

To validate the control efficiency and the safety of mesotrione·isoxaflutole·atrazine 27% SC to weeds in corn field,the field efficacy trials by soil treatment and regular investigation were conducted.The results showed that mesotrione·isoxaflutole·atrazine 27% SC had good effectiveness to the grass weeds and the broad-leave weeds at doses of200 g/666.7 m^2~300 g/666.7 m^2 in soil treatments.The preparation has the advantage of low cost,good effectiveness stable quality and sociological benefits.The control efficiency of mesotrione·isoxaflutole·atrazine 27% SC was more than90% 30 d after treatments,while the control were just only 50% below.Meanwhile,it was safe to the corn,which indicated that mesotrione·isoxaflutole·atrazine 27% SC had more excellent performances and application values.