秸秆还田是把不宜直接作饲料的秸秆(麦秸、玉米秸和水稻秸秆等)直接或堆积腐熟后施入土壤中的一种方法。农业生产的过程也是一个能量转换的过程。作物在生长过程中要不断消耗能量,也需要不断补充能量,不断调节土壤中水、肥、气、热的含量。秸秆中含有大量的新鲜有机物料,在归还于农田之后,经过一段 Straw is a direct method of applying straw (wheat straw, corn stalks and rice stalks, etc.) which are not suitable for direct use to the soil after they are matured or directly deposited. The process of agricultural production is also a process of energy conversion. Crops in the growing process to continue to consume energy, but also need to continue to add energy, and constantly adjust the soil water, fertilizer, gas and heat content. The stalks contain large amounts of fresh organic material, which is returned after a period of return to the farmland