Organic fertilizers are carbonaceous materials derived primarily from plants and/or animals and applied to the soil to provide plant nutrients as their primary function. Processed by biological substances, animal and plant wastes and plant residues, it has eliminated the toxic and harmful substances, and is rich in a large number of beneficial substances, including a variety of organic acids, peptides and rich nutrient elements including nitrogen, phosphorus and potassium. It can not only provide comprehensive nutrition for crops, but also increase and renew soil organic matter, promote microbial reproduction, improve soil physical and chemical properties and biological activity, which is the main nutrient for green food production.

The advantages of the organic fertilizer:

1) the nutrient elements of biological organic fertilizer are complete; Chemical fertilizers contain only one or more nutrients.

2) bioorganic fertilizers can improve soil; Constant use of chemical fertilizers causes soil to harden.

3) bio-organic fertilizer can improve product quality; Too much chemical fertilizer results in inferior quality.

4) bioorganic fertilizers can improve the rhizosphere microbiota of crops and improve the resistance of plants to diseases and pests; Fertilizer is the crop microbial community is single, easy to produce pests and diseases.

5) bio-organic fertilizers can promote the utilization of chemical fertilizers and improve the utilization rate of chemical fertilizers; The use of chemical fertilizers alone can easily cause the fixation and loss of nutrients.