How to prepare and process organic fertilizer before and after granulation

Preparation before granulation

Raw material selection: The raw materials for organic fertilizers usually include livestock and poultry manure, crop straw, bacterial residue, etc. These raw materials need to undergo fermentation and maturation treatment to eliminate harmful substances and improve fertilizer efficiency.

Raw material processing: The fermented and decomposed raw materials need to be crushed to achieve the required fineness for granulation. At the same time, it is necessary to mix and match nutrients such as nitrogen, phosphorus, and potassium according to the formula.

Processing after granulation

Drying: After granulation, the particles need to be dried to reduce their moisture content, improve the stability and storage of fertilizers.

Screening: The dried particles need to be screened to remove particles that do not meet the requirements, ensuring the quality and specifications of the product.

Packaging: The screened particles need to be packaged for storage, transportation, and sale.