Three principles for improving soil fertility

The application of organic fertilizers increases and maintains the soil organic fertilizer content by applying manure, manure, manure, compost, manure, green manure and other organic fertilizers with high organic matter content. Where conditions permit, a large amount of fertilization (river mud, peat, etc.) can be applied. It has a significant effect on improving soil organic matter content.

After harvest straw, chopped straw spread on the surface after plowing plow, field directly, this can improve the physical properties of the soil, the soil to promote the formation of aggregate structure, increasing the air permeability, water permeability, fertilizer capacity, thereby increasing the Soil fertility.

Reasonable rotation can increase the planting area of ​​legumes appropriately. In the process of rotation, planting a leguminous crop for four years can increase the nitrogen content in the soil. At the same time, when the legume green manure crop is turned into soil, a large number of roots, stems and leaves can Increase soil organic matter, improve soil physical and chemical properties, and improve soil fertility.