Nitrogen content of traditional bacterial fertilizers

Below 25%. Microbial fertilizer, also known as biofertilizer, inoculant or bacterial fertilizer, refers to a type of fertilizer product that uses the life activities of microorganisms as the core to enable crops to obtain specific fertilizer effects. Its nitrogen content is less than 25%. Fertilizer can be organic fertilizer or inorganic fertilizer such as nitrogen, phosphorus, potassium, medium and trace elements.