目前,秸秆直接还田方式主要有两种,即翻压还田和覆盖还田。翻压还田指作物收获后,将作物秸秆粉碎或整株或高留茬直接翻压土壤内。覆盖还田包括两种形式:一是将作物秸秆铺盖于田间或作物株行之间;二是残茬覆盖,其主要形式为留高茬。近几年,根据不同的自然条件、社会经济状况、种植制度等 At present, there are mainly two ways of directly returning straw to the soil, namely, pressing over the soil and covering the soil. Replenishing means crop harvesting, the crop straw crushed or whole plant or high stubble directly turn the pressure inside the soil. Coverage and back to the field, including two forms: First, crop stalks covered in the field or between crop lines; Second, stubble cover, the main form of stay stubble. In recent years, according to different natural conditions, social and economic conditions, planting system