Deep-burying field-returning process of corn straw

The invention relates to a deep-burying field-returning process of corn straw. The process which returns the corn straw to a field includes the steps of firstly, using a spring-finger pickup device to pick the corn straw; secondly, crushing the picked straw to increase degrading speed; thirdly, furrowing deep furrows 25cm in width and 35-45cm in depth; fourthly, conveying the crushed straw into the deep furrows; fifthly, compressing the corn straw conveyed into the furrows; sixthly, covering the compressed straw with soil; seventhly, compacting the furrows after the soil covering. The deep-burying field-returning process has the advantages that the whole process is low in energy consumption and free of pollution, soil fertility is increased, and the earth surface residue problem of the straw is solved thoroughly. 本发明为种玉米秸秆深埋还田工艺，以玉米秸秆为还田对象，包括以下步骤：捡拾：利用弹齿式捡拾器将玉米秸秆拾取；粉碎(切断)：将步骤(1)的秸秆进行粉碎，提高降解速度；开沟：在垄沟开宽25cm，深35-45cm深的深沟；输送：将步骤(2)粉碎后的秸秆输送至步骤(3)所开的深沟内；沟内镇压：将步骤(4)输送到沟内的玉米秸秆进行沟内镇压；覆土：将步骤(5)处理后的玉米秸秆覆土；镇压：将覆土后的沟进行镇压压