In today's rapidly developing large-scale livestock industry, pig manure disposal has been a major headache for farmers. Random dumping not only occupies land but also breeds bacteria and pollutes soil and water sources. However, through a scientifically planned organic fertilizer production line, pig manure can be transformed into high-quality organic fertilizer, solving environmental problems and providing efficient nutrients for agricultural production, achieving a resource cycle of "turning waste into treasure." Its standardized process is a key support for circular agriculture.
The core of making organic fertilizer from pig manure is harmless fermentation, which is also the core step in the organic fertilizer production process. First, the raw materials need to be pre-treated. In the raw material mixing area of the production line, fresh pig manure is precisely mixed with straw, sawdust, and other auxiliary materials in a 3:1 ratio. Specialized equipment adjusts the carbon-nitrogen ratio to 25-30:1, while controlling the moisture content at 55%-60% to create a suitable environment for microbial activity. The mixture is then transported to the fermentation area, piled into a 1.5-2 meter high fermentation heap, and ventilation pipes are inserted to ensure oxygen supply, initiating the aerobic fermentation process. During the initial fermentation stage, the temperature rises above 55℃ for 7-10 days to kill insect eggs, pathogens, and weed seeds in the manure. During this period, the manure needs to be turned 2-3 times by a compost turning machine on the production line to ensure even and thorough fermentation.
After fermentation, the production process enters the post-processing stage. After 20-30 days of maturation, the pig manure becomes a loose, dark brown substance, which is then sent to the production line's screening equipment to remove incompletely decomposed impurities. Next, in the ingredient mixing stage, phosphorus, potassium, and other micronutrients are precisely added according to the nutrient requirements of different crops to improve the fertilizer's nutrient balance. Finally, through a series of automated processes including drying, granulation, cooling, and packaging, it is made into granular organic fertilizer, which not only facilitates storage, transportation, and application but also ensures product quality stability.
This organic fertilizer, produced on a standardized production line, is rich in nitrogen, phosphorus, potassium, organic matter, humic acid, and other nutrients. When applied to the soil, it improves soil structure, increases soil aeration and water and fertilizer retention capacity, and reduces reliance on chemical fertilizers. Long-term use can improve crop quality, reduce pesticide residues, and contribute to the development of green agriculture. It is estimated that 1 ton of pig manure can be processed into 0.3-0.5 tons of organic fertilizer through a standardized process, meeting the base fertilizer needs of 1 mu (approximately 0.16 acres) of farmland. This reduces the cost of pollution control in livestock farming and saves farmers fertilizer expenses, creating a win-win situation for both ecological and economic benefits.
From livestock waste to agricultural "nutritional meals," the pig manure organic fertilizer processing system is not only a cluster of environmentally friendly equipment, but its standardized process also serves as an important path to promote the development of circular agriculture, injecting new vitality into sustainable agricultural development.
