With the booming development of green agriculture, organic fertilizer has become crucial for improving soil and enhancing crop quality. The complete organic fertilizer production line, through standardized and mechanized operations, achieves the efficient conversion of organic waste into high-quality fertilizer. The organic fertilizer production process is interconnected, combining environmental friendliness and practicality.
The first step in the production process is raw material pretreatment, which is fundamental to ensuring the effectiveness of subsequent fermentation. Workers collect raw materials such as livestock and poultry manure, straw, and mushroom residue. The moisture content is adjusted to 55%-65% using a solid-liquid separator. Then, a straw crusher breaks down large pieces of material to 3-5cm. Finally, the mixture is uniformly mixed in a batching mixer at a carbon-to-nitrogen ratio of 25:1 to 30:1, removing impurities such as plastics and stones to create suitable conditions for microbial fermentation.
High-temperature aerobic fermentation is the core step in organic fertilizer production, often referred to as the "transformation" process of organic fertilizer. The mixed materials are fed into a fermentation tank, inoculated with a compound microbial agent, and then periodically turned by a compost turning machine. An automatic aeration system provides oxygen, gradually raising the pile temperature to 55-65℃ and maintaining it for about 10 days, effectively killing pathogens and weed seeds. After 15-20 days of fermentation, the material gradually cools to below 40℃, turning into a dark brown, odorless, mature material, completing the decomposition and transformation of organic matter.
The fermented material then enters the post-processing stage to further improve its quality and marketability. First, a drum screen separates large, unfermented pieces of material; substandard material is returned to the fermentation stage. Qualified material is granulated into 2-4mm particles according to requirements, then dried to control the moisture content below 30%, and cooled to remove excess heat and prevent clumping.
Finally, quality inspection and packaging are carried out. Workers test for organic matter, total nutrients, heavy metals, and other indicators according to national standards. After passing the tests, the material is quantitatively packaged by an automatic packaging machine, typically in 40kg or 50kg bags, stacked, and stored in a cool, dry warehouse.
The entire process realizes the resource utilization of organic waste, which not only responds to environmental protection policies, but also provides high-quality fertilizer for agricultural production, promoting the development of agriculture towards a green and sustainable direction.
