近年来,由于农家肥的施用量越来越少,大量施用化肥,造成了土壤板结,作物品质低下,病虫害的发生越来越多,土壤生态环境遭到破坏,土壤中的有机质和有益微生物含量急剧下降,保水保肥能力减弱,作物的产量一直徘徊不前。土壤中有机质的多少及其微生态环境,已成为制约作物高产的 In recent years, due to the decreasing application of farmyard manure, the heavy application of chemical fertilizers has resulted in soil compaction, low crop quality, more and more pests and diseases, destruction of the soil ecological environment, soil organic matter and beneficial microorganisms A sharp decline, weakened capacity of water and fertilizer, crop production has been stagnant. The amount of organic matter in the soil and its micro-ecological environment, has become a constraint crop yield