What is organic fertilizer? What is the function of organic fertilizer?

Organic fertilizer is a traditional fertilizer in China. Any fertilizer containing organic matter or carbon (C) is called organic fertilizer, which is usually processed from animal and plant wastes and plant residues. This processing process mainly eliminates some toxic and harmful substances, leaving only a large number of beneficial substances. Organic fertilizer has a wide source of fertilizer, which is the excrement or residue of all living things or the decomposition products of living things. Organic fertilizer contains nitrogen, phosphorus, potassium and other elements, which can provide more comprehensive nutrients for crops, and the fertility of organic fertilizer is relatively long, which is helpful to increase or update the organic matter in the soil, promote the reproduction of microorganisms in the soil and make the soil more active.

Function:

First, provide nutrition.

Organic fertilizer contains all kinds of nutrients needed by crops, which provides rich organic matter, nitrogen, phosphorus, potassium and various trace elements for plant growth and development. The application of organic fertilizer can obviously improve the nutrient content of topsoil, especially the potassium content.

Second, inhibit germs.

Beneficial microorganisms in organic fertilizer can also inhibit the reproduction of harmful bacteria.

Third, improve the soil structure

Soil organic matter is one of the main indicators to measure the fertility level, the material basis of soil fertility, and the material source to supplement and renew soil organic matter. Regular application of organic fertilizer can obviously increase the content of soil organic matter, which is conducive to maintaining the stability of soil organic matter and improving the physical and chemical properties of soil. Organic matter in organic fertilizer can loosen hardened clay and aggregate loose sandy soil, create good conditions such as moisture, ventilation and temperature for the growth and development of soybean roots, and promote the growth and development of aboveground parts of plants.

Fourth, increase production.

In the process of continuous mineralization in soil, organic fertilizer can supply a variety of nutrients necessary for crops for a long time, and at the same time, it can supply a variety of active substances, which can not only nourish plants, but also stimulate crop growth, enhance soil microbial activity, improve the effectiveness of soil nutrients, and thus improve crop yield.

In addition to the above functions, the application of organic fertilizer in agricultural production also shows the following functions: balanced nutrition, promotion of crop growth, obvious yield increase and high fertilizer efficiency; Improve the quality of agricultural products; Inhibit pathogenic bacteria and reduce pests and diseases; Loosening and improving soil to reduce nitrate pollution in soil; Increase the water absorption of crops and enhance the drought resistance and lodging resistance of crops.