There are more than 150 types of bacteria used in microbial fertilizer production. They can be divided into nitrogen fixing bacteria, potassium solubilizing bacteria, phosphate solubilizing microorganisms, antibiotic functional bacteria and enzyme producing bacteria according to their functions. In the process of bacteria used in microbial fertilizer production, you need to choose the right type of microbial agent according to different soil types and crop needs. Ensure that the selected bioagent is beneficial to the target plant and can adapt to local environmental conditions. This is the best way to get the best results from the addition of biological bacteria and improve the quality of the crop.

Enzyme producing bacteria can secrete various enzymes. It can effectively degrade organic matter, decompose organic matter into nutrients absorbed by plants. At the same time, it also can accelerate the decomposition and transformation process of organic biofertilizers. Common enzyme producing bacteria mainly include the following categories: protease producing bacteria, amylase producing bacteria, cellulase producing bacteria. They all break down organic matter to provide nitrogen, carbon and glucose sources for plant growth, respectively.

In microbial fertilizer production, people also usualluy use antimicrobial functional bacteria. Streptomyces is an important genus of actinomyces, which can produce many active substances such as antibiotics and plant hormones. It is an antimicrobial functional bacteria that plays an important role in improving the resistance and stress resistance of plants. It mainly includes Bacillus subtilis, trichoderma, rhizobia and so on. The mycelium of Streptomyces has many branches. And this genus has the most species, which can produce a variety of antibiotics.

The main function of phosphorus solubilizing bacteria in biological fertilizer is to help plants effectively absorb phosphorus in soil. These phosphorus solubilizing bacteria can secrete phosphatase, by degrading insoluble phosphate, convert it into phosphate that can be absorbed and used by plants. Depending on the phosphate solubilizing bacteria to break down the substrate to organophosphorus them into microorganisms and inorganic phosphorus. When adding bio fertilizer agents, you need to consider factors such as soil type, organic matter content and cultivation methods to add different phosphorus solubilizers.

Potassium functional bacteria is a kind of bacteria that can decompose aluminosilicate and apatite minerals. Potassium bacteria can be used as microbial fertilizer to promote the conversion of insoluble potassium, phosphorus, magnesium and other nutrients into soluble nutrients, and increase the content of available nutrients in soil. There are mainly Bacillus siliceous, Bacillus extorquens, Bacillus circulans and so on. The silicate bacteria is a kind of colloid bacillus, is a common biological fertilizer releasing from microorganisms.

Nitrogen-fixing bacteria can provide nitrogen source for plants through nitrogen fixing in biofertilizers. In addition, nitrogen-fixing bacteria can convert nitrogen in the atmosphere into nitrogen compounds, such as ammonia, nitrate. It is easy for plants to absorb. So, It can provide sufficient nitrogen source supply for plants. Common nitrogen-fixing bacteria mainly include rhizobia, non-nodule nitrogen-fixing bacteria, blue-green algae and so on. At the same time, the nitrogen-fixing bacteria species can be according to the way of life, the demand for oxygen, etc into the classification.