Organic fertilizer production plays an irreplaceable role in improving crop yield and quality. Organic fertilizer can not only provide a variety of inorganic and organic nutrients to crops, but also improve soil. Organic fertilizer production in agriculture has many advantages and high benefits.
Organic fertilizer production in agriculture can improve soil, increase fertility, improve water and fertility conservation and aeration tillage. Organic fertilizers dissociate hydrogen ions from soil solution and have strong cation exchange ability. The application of organic fertilizers can enhance the fertilizer conservation performance of soil and reduce the loss of nitrogen, phosphorus and potassium. At the same time, organic fertilizer can reduce soil bulk density and form aggregate structure, which is easier to absorb and hold water. Organic fertilizers can improve soil physical properties. Organic fertilizers produce hydroxyl ligands during decomposition, which combine with polyvalent metal ions on clay surface or hydroxide polymer surface to form aggregates. In addition, the density of organic fertilizers is generally smaller than that of soil. Organic fertilizers applied to soil can reduce soil bulk density, improve soil aeration and make soil arable better.
The production and application of organic fertilizer improved the detoxification effect of soil and purified the soil environment. Humic acid in organic fertilizer has detoxification effect, so that the toxicity of toxic substances in soil to crops can be greatly reduced or disappeared. The detoxification of organic fertilizers is due to the fact that organic fertilizers can improve the cation exchange capacity of soil and increase the adsorption of cadmium.
Organic fertilizer production improved crop drought, freezing, disease and stress resistance. Organic fertilizer can improve soil structure, enhance soil water storage and water conservation capacity, reduce water ineffective evaporation, and improve heat preservation effect, thereby improving crop drought resistance, cold resistance and freezing resistance, so that it can better maintain its internal and external quality under harsh climatic conditions.