Microbial fertilizers contain microbial strains and a variety of metabolites, the bacteria can survive in the farm surface and rhizosphere, and use its life activities and its metabolic process, for the host to provide the necessary nutrients, stimulants, antagonists , Amino acids, active enzymes, polysaccharides and other substances in a class of microbial products in agricultural production with a specific fertilizer effect, growth regulation effect, anti-pest effect and soil bioremediation effect and other effects. China’s microbial fertilizer has been developed to the third generation of fat and fertilizer-type microbial fertilizer.
            Microbial fertilizers can increase the number of beneficial bacteria in the soil, convert the invalid nutrients into effective nutrients for crop absorption; balance the flora structure, improve the soil environment, reduce soil harmful substances, loose soil to improve fertility; induce and open crop secondary metabolic pathway, Resistance and prevention and control of pests and diseases, drug control; to stimulate endogenous hormone metabolism, conditioning autologous physiological health, promote growth and precocious, improve quality. Microbial biotransformation, biological control and stimulate the growth of any fertilizer is irreplaceable, with microbial fertilizer is the active fertilizer, both nitrogen and phosphorus solution and potassium, the transformation of soil potential fertilizer sources to promote the absorption of nutrients on crops, reduce fertilizer Consumption and improve fertilizer utilization, but also without or less chemical pesticides can achieve effective resistance and plant protection effect.
             Microbial fertilizers also have some places to improve. Fertilizers are the direct nutrient elements absorbed by crops. Microorganisms are provided by transformation. Microbial pest prevention and control slow, to increase production and stability, and it must be combined with chemical pesticides. Fertilizer is to fertilize crops, bio-organic fertilizer is to fertilize the soil, so bio-fertilizer and fertilizer can be combined to achieve the effect of farming land. And not the number of bacteria as much as possible, the key lies in the viability of viable bacteria and its secretion of metabolites dose. In use, should be used early,  preventive effect is good.