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近年来,麦田化学除草技术大面积推广应用,对防除麦田杂草尤其是禾本科杂草,确保小麦增产增收发挥了重要作用。随着农村劳动力大量外出转移,化学除草省工、省力、省时、成本低、操作简单、防治效果好的优点更为突出,得到普遍应用,深受广大农民欢迎。但由于施用除草剂时间把握不当、小麦品种调运频繁、联合收割机跨区作业等人为因素的影响,使禾本科杂草发生范围蔓延、扩大。
In recent years, wheat field chemical weeding technology popularization and application of large areas, the prevention and control of weeds in wheat, especially weeds, to ensure that wheat yield increase has played an important role. With the large number of rural labor force going out and transferring, the advantages of chemical weeding and labor saving, labor saving, time saving, low cost, simple operation and good control effect are more prominent and are widely applied and welcomed by farmers. However, due to the improper grasping of herbicide application time, the frequent transfer of wheat varieties and the cross-cutting operation of combine, the spread of grass weeds has been widened.