在小麦种植地区因寒潮频繁,加上受到干旱的影响,在使用除草剂后常会普遍受到冻药害影响,严重影响当年麦苗的正常越冬生长。自2008年南方冰灾后,近些年各地均有不同程度的冻药害现象,值得引起重视。引起冻药害的原因。一是除草剂的选择不对路。目前小麦除草时,很多地方习惯施用异丙隆,或者施用异丙隆的复配剂如苯磺·异丙隆、苄嘧、氯磺·异丙隆等除草剂,一般都是作茎叶处理剂,使用这类农药以后,会降低麦苗的抗冻能力,严重的引发大面积死苗。二是 Due to the frequent cold wave in the wheat growing areas, coupled with the impact of drought, herbicides are commonly affected by freeze injury and seriously affect the normal winter growth of wheat seedlings. Since the ice disaster in the south of the world in 2008, there have been various degrees of freezing damage in various places in recent years and deserve attention. Caused by frozen injury causes. First, the choice of herbicide wrong way. At present weeding in wheat, many places used to isoproturon, or the application of isoproturon compound such as benzene isoproturon, benzyl pyrimethazine, isoproturon and other herbicides, are generally used for stems and leaves treatment Agents, the use of such pesticides later, will reduce the frying ability of wheat seedlings, causing serious dead seedlings. two is