Livestock manure contains a lot of organic matter and rich nutrients such as nitrogen, phosphorus, potassium and so on, which is a valuable resource for the sustainable development of agriculture. Therefore, aerobic composting of manure is widely used at present.
Aerobic composting is a process of decomposition of organic materials under aerobic conditions. The main metabolites are carbon dioxide, water and heat. The aerobic fermentation process of organic fertilizer mainly depends on the role of microorganisms, which are the main body of compost fermentation. There are two sources of microorganisms involved in composting: one is the original large number of microorganisms in organic waste; the other is artificial microbial inoculants. Under certain conditions, these strains have a strong ability to decompose some organic wastes, with strong activity, rapid reproduction and rapid decomposition of organic matter, which can accelerate the process of composting reaction and shorten the time of composting reaction.
The livestock manure organic fertilizer production line
mixes manure and auxiliary materials in a certain proportion according to the characteristics of manure raw materials and auxiliary materials, according to the required carbon-nitrogen ratio and moisture content of the compost, and appropriately controls the oxygen and temperature in the pile to make the manure ferment quickly Produce organic fertilizer. The advantages of this method of manure treatment are that the product has less odor, is relatively dry, is easy to package and apply, and can be used as a soil amendment or organic fertilizer in agricultural production.
What key points need to be controlled for aerobic fermentation?
1. Carbon to nitrogen ratio. Control in 25-30:1.
2. Temperature. The maximum temperature is controlled at about 65 degrees.
3. Water content. The initial water content is controlled at about 50-55%.
4. Material granularity. It is best to control it below 2cm at the beginning.
5. Turn over the pile. Turning the pile is for uniform fermentation, increasing maturity, supplementing oxygen, reducing moisture and temperature. It is recommended that the number of turning piles of farm manure compost in a week should be at least 3 times.