The biological bacteria agent was added into the fertilizer manufacturing process to comprehensively improve the fertilizer effect and ensure the growth of crops. The characteristics of biological fungicides commonly used in agricultural cultivation are as follows
Bacillus subtilis: it can activate potassium phosphate in soil, reduce the accumulation of harmful substances, improve soil, inhibit soil diseases, promote crop roots, increase the absorption and utilization of nutrients, strengthen bacteria, and enhance crop immunity to diseases.
Paecilomyces lilacinus: it can control plant root knot nematodes, promote plant growth, secrete multiple functional enzymes, degrade pesticide residues and other functions.
Bacillus: it has strong resistance, strong environmental adaptability, high phosphorus release function, and provides nutrients for plants. It can improve the soil compaction and other problems.
Trichoderma harzianum: a variety of soil borne diseases, such as Phytophthora, sheath blight and Fusarium wilt, as well as gray mold, Fusarium wilt, buckwheat disease, Sclerotinia sclerotiorum and other diseases that promote the growth of gibberellin and other crops. Plant root colonization can stimulate plant growth, improve nutrient utilization, add organic fertilizer production process, enhance crop stress resistance, repair agricultural chemical environmental pollution, improve root microenvironment, and increase crop yield and yield.
Bacillus licheniformis: functional enzymes such as phosphorus and potassium release, protease, lipase, amylase, etc.; active substances that antagonize pathogenic bacteria.
Bacillus megaterium: fast reproduction speed, strong stress resistance, strong adaptability, high organic phosphorus degradation rate in the soil, and can decompose macromolecular organic matter.
Bacillus amylolus: promote the dissolution and utilization of invalid phosphorus in the soil, promote the growth of crop roots, resist drought and lodging, increase flowers and fruits, and improve yield and product quality.
Bacillus thuringiensis: used to prevent various pests of Orthoptera, Coleoptera, Diptera, Hymenoptera, especially Lepidoptera.
Actinomycetes: Reduce soil-borne diseases, promote the decomposition of organic matter, improve the soil environment, increase fertilizer utilization, and promote plant growth.
Photosynthetic bacteria: promote photosynthesis of plant leaves, promote plant root growth, improve fruit quality and storage, and promote flower bud formation.
The survival and function of microorganisms need carbon to provide energy. Therefore, humic acid, amino acid, alginate, polyaspartic acid and other organic rich products can be selected as the carrier of functional microbial preparation compounded with fertilizer. Commercial fertilizer is made by pan granulator. 
