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土壤肥力就是指土壤供给作物生长发育所必需的水分、养分、热量、空气的能力。近年来的研究表明,土壤的松紧度也是土壤肥力的一个重要因素。生产实践证明,要想使作物高产稳产,必须提高土壤肥力,即让土壤的水、肥、气、热和松紧度能协调地满足作物的需要。 组成土壤肥力的五个因素同等重要,缺一不可。同时,它们之间又相互联系,相互制约。研究表明,土壤有机质是土壤肥力的重要物质基础,它不仅向作物提供氮、磷、钾及多种微量元素,而且能改善土壤理化性状,
Soil fertility refers to the ability of the soil to supply the water, nutrients, heat, and air necessary for crop growth and development. In recent years, studies have shown that soil tightness is also an important factor in soil fertility. Production practice has proved that in order to make the crop stable and high yield, it is necessary to increase the soil fertility, that is, the soil water, fertilizer, air, heat and tightness can coordinate the crop needs. The five factors that make up soil fertility are equally important and indispensable. At the same time, they are interconnected and mutually restrained. Studies have shown that soil organic matter is an important material basis for soil fertility. It not only provides nitrogen, phosphorus, potassium and trace elements to crops, but also improves soil physical and chemical properties,