玉米秸秆还田技术是一项使作物增产的好措施，但如操作不当，其效果就不理想，因此在实施玉米秸秆粉碎还田时，应特别注意以下几点：一是注意提高粉碎质量。目前我国推广应用的秸秆还田机都能在割倒秸秆的同时将玉米秆打碎，不论是哪种还田机，秸秆粉碎的长度应小于１０厘米， Corn stalks return technology is a good measure to increase crop yield, but if the improper operation, the effect is not ideal, so in the implementation of corn stalks back to the field, should pay special attention to the following points: First, pay attention to improve the quality of crushing. At present, China’s straw to promote the use of straw machine can cut corn stalks at the same time broken, no matter what kind of straw machine, the length of straw crushed should be less than 10 cm,