Powdered organic fertilizer uses organic waste such as livestock and poultry manure, crop straw, and mushroom residue as raw materials. Through scientific processing, it is transformed into a high-efficiency fertilizer. The organic fertilizer production process is an important link in resource recycling and the development of ecological agriculture. It mainly includes four core stages: raw material pretreatment, fermentation and maturation, deep processing, and finished product inspection.
Raw material pretreatment is the basic stage of organic fertilizer production. Workers first screen the collected organic raw materials to remove impurities such as stones and plastics. Then, a crusher is used to crush coarse fiber materials such as straw and withered branches to a suitable particle size. Subsequently, livestock and poultry manure are mixed with the crushed raw materials in proportion, adjusting the carbon-nitrogen ratio to 25:1-30:1, while controlling the moisture content at 55%-65%, creating suitable conditions for subsequent fermentation.
Fermentation and maturation are key to improving fertilizer quality. The mixed raw materials are sent to a fermentation tank. After inoculation with a special composting agent, a turning machine is used to regularly turn the materials, ensuring sufficient contact between the raw materials and air, promoting aerobic fermentation. During fermentation, the temperature rises to above 55℃, lasting for 5-7 days to kill pathogens, insect eggs, and weed seeds. After 20-30 days of fermentation, the raw materials gradually decompose into loose, mature material, completing the stable transformation of organic matter.
Deep processing determines the product form and purity. The fermented material is first screened to remove incompletely decomposed impurities, and then sent to an ultra-fine pulverizer for crushing, so that the finished product particle size reaches above 80 mesh. According to crop needs, nitrogen, phosphorus, potassium fertilizers, and trace elements can be added at this stage. After thorough mixing, a customized formula fertilizer is formed.
Final product inspection and packaging are the last safeguards in the organic fertilizer making process. Inspectors test the product's organic matter content, pH value, heavy metal content, and other indicators. After passing the inspection, the product is weighed and sealed by an automated packaging machine, finally forming a qualified powdered organic fertilizer product, contributing to green and sustainable agricultural development.
