高麦茬覆盖复播技术，是在机械收获后的高茬麦田，通过人工撒种、旋耕机旋耕等作业环节，达到灭茬、播种、覆盖的目的。这种复播方式既有蓄水保墒、调控地温、培肥改土、抑制杂草等土壤环境效应，又有促进夏作物生长发育、提高产量的生物学效应。与常规耕作复播相比，每公顷增产夏玉米１２７５ｋｇ、夏大豆８２６５ｋｇ，增产率分别为２９１％和３３１％。 High-stubble crop coverage replay technology, mechanical harvesting in the high stubble wheat field, through artificial sowing, rotary tiller and other operating links to achieve stubble, sowing, covering the purpose. This kind of compound broadcast has the biological effects of water storage, soil temperature regulation, fertilization and soil improvement, soil weed control and other environmental effects, as well as the promotion of summer crop growth and yield. Compared with conventional tillage and replanting, the yield of summer maize was 1275kg per hectare and that of summer soybean was 8265kg, the increment rates were 291% and 331% respectively.