What is the process of biofertilizer production?

The production of bio-organic fertilizers requires multiple scientific processes, ensuring meticulous control from raw materials to finished product, ultimately providing high-quality nutrients for agriculture. Production begins with raw material pretreatment. Workers screen organic waste, such as livestock and poultry manure and crop straw, first remove metal impurities through magnetic separation, and then crush the materials into 2-5 mm particles. The raw materials are then blended to a carbon-to-nitrogen ratio of 25:1 and the moisture content is adjusted to 55%-60%, creating optimal conditions for microbial growth and preventing impurities and excessive moisture from affecting subsequent processes. Microbial fermentation is the core step. The mixed raw materials are fed into fermentation tanks and inoculated with beneficial bacteria such as Bacillus subtilis. Compost turning machine s turn the materials once or twice daily, maintaining a temperature of 55-65°C. This temperature kil...