42%精异丙甲草胺·异噁唑草酮·莠去津悬乳剂防除玉米田杂草田间药效试验

Field efficacy trials of S-metolachlor · isoxaflutole·atrazine 42% SE

为验证42%精异丙甲草胺·异噁唑草酮·莠去津悬乳剂对玉米田杂草的防治效果及对玉米的安全性,采用土壤封闭处理和定期调查的方法进行田间药效及安全性试验。结果显示42%精异丙甲草胺·异噁唑草酮·莠去津悬乳剂在使用剂量为200~300 g/666.7 m2对玉米田杂草的土壤封闭处理效果较好。施药45 d后,对禾本科杂草的总防效均能达到97%~100%,明显优于对照药剂的66%~72%,对阔叶杂草的防效达79%~88%,显著高于对照药剂的38%~64%。同时,42%精异丙甲草胺·异噁唑草酮·莠去津悬乳剂对不同玉米品种安全性较高,展现了产品在玉米田优异的封闭效果和安全性。

To validate the control efficiency and the safety of S-metolachlor·isoxaflutole·atrazine 42% SE to weeds in corn field,the field trials were conducted with soil treatment and regular investigation.The results showed that S-metolachlor·isoxaflutole·atrazine 42% SE at the dosage of 200~300 g/666.7 m2 45 d after treatments had good control effectiveness to the grass weeds and the broad-leave weeds.The efficiency of S-metolachlor · isoxaflutole · atrazine 42%SE was more than 97%~100% to grass weeds 45 d after treatment,while the control groups were just only 66%~72%,and the efficiency to the broad-leaved weeds was more than 79%~88% 45 d after treatment,while the control groups were just only 38%~64%.Meanwhile,it had good security performance to the different kinds of corn,which indicated that the product had more excellent soil treatment ability and safety to corn.