17%氰氟·二氯喹OD防除水稻直播田主要杂草应用技术

Application Technology of Cyhalofop-butyl+Quinclorac 17% OD on Weeds in Direct Seeding Rice Field

为明确17%氰氟·二氯喹可分散油悬浮剂对直播稻田杂草的防效、应用技术,2015年开展了田间药效试验。结果表明,17%氰氟·二氯喹可分散油悬浮剂对稗草、鸭舌草和节节菜等杂草有较好的防除效果,极显著优于对照药剂10%氰氟草酯乳油、25%二氯喹啉酸可湿性粉剂以及人工除草。且其对水稻生长安全。17%氰氟·二氯喹可分散油悬浮剂有效成分用量以255-306 m L/hm^2为宜,适宜施药期为水稻分蘖前期,稗草2-4叶期。

In order to confirm the efficacy and application technology of cyhalofop-butyl ＋ quinclorac 17% OD on weeds in direct seeding rice field,trials were carried out in 2015.The results showed that weeds such as Echinochloa crusgalli,Monochoria vaginalis and Rotala indica could be effectively controlled by applying cyhalofop-butyl ＋quinclorac 17% OD.And it was safe to rice grow.The suitable active ingredient dosage of cyhalofop-butyl ＋ quinclorac17% OD were 255-306 m L/hm^2.And its＇ application period was the early stage of rice tillers.