Best Guide for Microbial Fertilizer Products Introduction

There are lots of Microbial fertilizer products in the market, many growers don’t know how to distinguish and choose the right products for crops. This article will tell you “Why we use Microbial fertilizer” & “Functions of different Microbial products".

Why use Microbial Fertilizer Products

It’s a kind of product that the life activities of microorganisms make crops get a specific fertilizer effect. Microbial fertilizers products play an essential role in agriculture, not only in improving the supply of soil nutrients, but also in promoting crop growth, disease resistance, and stress resistance.
After applying the microbial fertilizer in the soil, the “symbiotic effect of fungi and crops,” “nutrient coordination effect,” “biological nitrogen fixation effect” will occur between the fungus, crops, and soil ecological environment to ensure healthy growth and stability of the crops. The primary effect mechanism of the production increase effect includes the following five aspects.
(1) Increase soil fertility and improve fertilizer utilization.
Microbial fertilizers are rich in organic matter and a certain amount of available nitrogen, phosphorus, potassium, and trace elements. They have comprehensive nutrients and increase soil fertility. The combined effect of the strains has the effect of releasing phosphorus and potassium, and it can increase the soil porosity and improve the utilization rate of nitrogen at the same time, phosphorus, and potassium in conventional fertilizers. For example, bacteria can gradually decompose apatite, tricalcium phosphate, and organic phosphorus compounds, releasing phosphorus pentoxide for absorption and reuse by plants.
(2) Improve soil aggregate structure, loosely activate soil microorganisms to produce large amounts of extracellular polysaccharides during growth and reproduction.
Extracellular polysaccharides are the binders that form the soil granule structure and keep the granules stable. The bacteria that synthesize polysaccharides around the root system are linked to the stability of the soil aggregates in the crop rhizosphere. Besides, the organic matter contained in the microbial fertilizer can increase the content of organic matter, improve the soil structure, loosen and activate the soil, reduce soil compaction, and improve the ability of the soil to retain water, fertilizer, and air.
(3) Promote crop growth and enhance crop resistance
Microbes can produce a large number of phytohormones such as gibberellin and cytokinin during the fermentation process and life activities in the soil. These substances can stimulate crop growth and regulate crop metabolism after contact with the crop root system. The organic matter and humic acid contained in microbial fertilizers can adjust the opening of crop stomata. These substances work synergistically with the metabolites (enzymes) of beneficial microorganisms, which can improve the stress resistance of crops.
(4) Reduce soil-borne diseases
After the application of microbial fertilizer products, microorganisms grow and multiply in the crop root system, forming dominant bacteria in the crop rhizosphere. Through competition, parasitism, occupation, and other relationships, they can inhibit and reduce the propagation opportunities of pathogenic bacteria. Some microorganisms can also produce antibiotics, lysozyme, etc. Active substances effectively inhibit the growth of pathogenic bacteria in the soil and play a role in reducing soil-borne diseases of crops.
(5) Decompose the harmful substances remaining in the soil
A large amount of microbial beneficial bacteria growth and reproduction can inhibit the growth and reproduction of pathogenic bacteria. They can also decompose the residues of fertilizers and pesticides in the soil, decompose the harmful rhizosphere secretions accumulated in the soil, and ease the continuous cropping obstacles of crops.

Functions of Microbial Fertilizer Products


  1. Bacillus subtilis: Increase crop resistance and nitrogen fixation.
  2. Bacillus licheniformis: Resists disease and kills harmful bacteria.
  3. Bacillus amyloliquefaciens: Secretes antibacterial substances, produces antagonism, competition between nutrition and space, induces host resistance and promotes plant growth.
  4. Bacillus megaterium: Phosphate dissolving (phosphorus bacteria).
  5. Brevibacillus laterosporu: Root promotion, sterilization, and degradation of heavy metals.
  6. Bacillus coagulant: Reduce harmful gases in the environment, promote flavor.
  7. Bacillus methylotrophicus: Inhabit the pathogens, promote root growth.
  8. Bacillus polymyxa: Inhabit the pathogens like bacterial wilt.
  9. Bacillus forums: Inhabit the pathogens, kill nematodes.
  10. Bacillus pimilus: Inhabit the pathogens like grey mold.





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