土壤有机质是地力的最关键要素和最重要指标,作物产量一般都随土壤有机质含量增加而增加。种植绿肥和农作物秸秆还田,增加商品有机肥投入等均是提升土壤有机质含量的好途径。1.增施有机肥有机肥不但营养全面,养分释放均匀持久,可以解除土壤板结,改善土壤结构,增强土壤保肥保水能力,而且刺激农作物生长,提高农作物的抗逆性。长期使用有机肥,还可以有效缓解重茬作物带来的危害。增施有机肥,可以使 Soil organic matter is the most crucial element and the most important indicator of soil fertility. Crop yield generally increases with the increase of soil organic matter content. Planting green manure and crop straw returning, increasing input of commercial organic manure are all good ways to enhance soil organic matter content. 1. Organic manure not only increase organic nutrition, nutrient release uniform and lasting, can relieve soil compaction, improve soil structure and enhance soil fertility and water retention capacity, but also stimulate crop growth, improve crop resistance. Long-term use of organic fertilizer, but also can effectively alleviate the hazards of heavy crop. Add organic fertilizer, you can make