据河北省植保部门介绍,近年来,推广小麦、玉米免耕法后,小麦病虫害有增多的趋势,需要引起重视。免耕法又称保护性耕作,它由四项关键技术组成,即:免耕播种技术,指使用特殊的免耕播种机将种子播在有秸秆覆盖的地表上;秸秆残茬处理技术,指对秸秆残茬及地表需要进行粉碎等处理;杂 According to Hebei Province, plant protection department introduced in recent years, the promotion of wheat, no-tillage corn, wheat pests and diseases have increased the trend needs attention. Tillage, also known as conservation tillage, consists of four key technologies: no-till sowing, which means sowing seeds on a straw mulch surface using a special no-till planter; Stubble on the straw and the surface needs to be crushed and other treatment; Miscellaneous