摘要
55%吡酰·异丙隆悬浮剂(SC)在小麦播后苗前使用,对杂草有较好的封闭效果,对小麦安全。2019年秋播期间,在天气干旱的情况下,单用55%吡酰·异丙隆悬浮剂1次封闭,无法控制小麦全生育期杂草危害;但是,如果先封闭处理再在春季茎叶处理,除草效果则显著上升。4月上旬调查显示,55%吡酰·异丙隆悬浮剂1次封闭处理对单子叶草的株防效和鲜重防效分别为56.91%和74.05%;55%吡酰·异丙隆SC封闭处理结合5%唑啉草酯乳油茎叶处理的防效分别为79.57%和89.93%,与大面积生产中使用的除草剂2次处理防效相当。
Diflufenican·isoproturon 55%SC effectively controlled weeds and was selectivity to wheat when applied after sowing and before crop seedling emergence.The formulated mixture applied alone once in pre-emergence did not provide season-long control under the drought condition during autumn sowing in 2019.But weed control efficacy increased significantly when diflufenican·isoproturon 55%SC in pre-emergence was supplemented by a foliar treatment in spring.In the first ten days of April,monocotyledonous-weed control based on plant density and fresh weight provided by diflufenican·isoproturon 55%SC applied once in pre-emeergence was 56.9%and 74.05%,respectively.When the pre-emergence treatment was supplemented by a foliar application of pinoxaden 5%EC control increase to 79.57%and 89.93%,respectively,which was equivalent to the control obtained with herbicided used in large-scale production.
作者
范美娟
朱慧
沈晴
FAN Mei-juan;ZHU Hui;SHEN Qing(Zhangjiagang Station of Plant Protection and Plant Quarantine,Zhangjiagang 215600,China;Suzhou Station of Plant Protection and Plant Quarantine,Suzhou 215000,China)
出处
《杂草学报》
2021年第4期56-60,共5页
Journal of Weed Science
基金
江苏省苏州市农业科技创新项目(编号:SNG2018101)。
关键词
除草剂
小麦田
杂草
防除技术
herbicide
wheat fields
weed
control technology
