几种除草剂对小麦田杂草的防效及安全性评价

Efficacy and Selectivity of Several Herbicides on Weeds in Winter Wheat

杂草危害是威胁小麦安全生产的重要因素,为筛选高效、低毒、安全的冬小麦田除草剂,选用4种除草剂进行了防效比较试验。结果表明:33%氟噻·吡氟·呋悬浮剂1200mL/hm^(2)对冬小麦田杂草的总株数防效最高,55%吡酰·异丙隆可湿性粉剂2550g/hm^(2)、47%异隆·丙·氯吡可湿性粉剂2250g/hm^(2)或50%异丙隆可湿性粉剂2400g/hm^(2)加3.6%二磺·甲碘隆水分散粒剂375mL/hm^(2)于播后苗前封闭处理,均能有效控制麦田杂草危害。

Weed damage is an important factor restricting the development of wheat productivity.Therefore,four her⁃bicides were evaluated in winter wheat field for the selection of efficient,low phytotoxic and safe herbicides.The re⁃sults showed that flufenacet·diflufenican·flurtamone 33%SC at 1200mL/hm^(2)was the most effective in controlling weeds in wheat fields.Diflufenican·Isoproturon 55%WP at 2550g/hm^(2)or Isoproturon Pretilachlor·Halosulfuron-Methyl 47%WP at 2250g/hm^(2)or Isoproturon 50%WP mixed with mesoulfuron-methyl·iodosulfuron-methyl soudi⁃ou 3.6%WG at 375mL/hm^(2),all the above herbicides can effectively control weeds in wheat field.