Bacterial fertilizer has developed rapidly in China in recent years.

Bacterial fertilizer, also known as biological fertilizer, biological fertilizer, bacterial fertilizer or inoculant and so on. Bacterial fertilizer, in terms of image, is "bacteria + fertilizer", because on the one hand, bacterial fertilizer contains nutrients necessary for crop growth, such as "organic matter, nitrogen, phosphorus, potassium". At the same time, the product also contains a large number of beneficial microorganisms, which multiply in the soil. play the function of improving soil and preventing diseases. Bacterial fertilizer is one of the most common fertilizers in recent years, which is often seen in agricultural production, and it has developed rapidly in China in recent years.

Bacterial fertilizer is the common name of microbial fertilizer, it is a kind of auxiliary fertilizer with live bacteria.

There are a large number of microorganisms (including bacteria, fungi, actinomycetes) in soil, which generally contain hundreds of millions to billions of microorganisms per gram of soil. Some are good for the growth of crops, while others are harmful. People use scientific methods to separate and breed beneficial microorganisms from the soil. After cultivation, reproduction and making bacterial agents, these bacterial agents are applied to agriculture to increase crop production, which is called bacterial fertilizer, also known as microbial fertilizer. At present, the main bacterial fertilizers produced and applied in China are rhizobium, nitrogen-fixing bacteria, phosphorus bacteria, potassium bacteria, antibiotic fertilizer and so on.

Bacterial fertilizer can antagonize harmful microorganisms, promote the transformation of soil nutrients, improve the availability of soil nutrients, improve crop nutritional conditions and increase soil fertility through the life activities of beneficial microorganisms.

The application of bacterial fertilizer includes foliar spraying of bacterial liquid, seed spraying of bacterial liquid, seed dressing and mixing of solid bacterial agent and seed as bacterial fertilizer and so on.