Organic fertilizer has many functions. Organic fertilizer can improve the soil environment, promote the growth of beneficial microorganisms, improve the quality and quality of agricultural products, and promote the healthy growth of crops.
The condition control of organic fertilizer production is the interaction of physical and biological characteristics during the composting process, and the control conditions are coordinated by the interaction.
Moisture control:
Moisture is an important requirement for organic composting. In the process of manure composting, the relative moisture content of the compost raw materials is 40% to 70%, which ensures the smooth progress of the composting.
temperature control:
It is the result of microbial activity, which determines the interaction of materials.
Composting is another factor in temperature control. Composting can control the temperature of the material, enhance evaporation, and force air through the pile.
C/N ratio control:
When the C/N ratio is appropriate, composting can be carried out smoothly. If the C/N ratio is too high, due to the lack of nitrogen and the limited growth environment, the degradation rate of organic waste will slow down, leading to prolonged manure composting time. If the C/N ratio is too low, carbon can be fully utilized, and excess nitrogen is lost in the form of ammonia. It not only affects the environment, but also reduces the efficiency of nitrogen fertilizer.
Ventilation and oxygen supply:
Manure composting is an important factor in insufficient air and oxygen. Its main function is to provide the necessary oxygen for the growth of microorganisms. The reaction temperature is adjusted by controlling the ventilation, and the maximum temperature and the occurrence time of composting are controlled.
PH control:
The pH value will affect the entire composting process. When the control conditions are good, the compost can be processed smoothly. Therefore, high-quality organic fertilizer can be produced and used as the best fertilizer for plants.
Organic fertilizer fermentation mainly passes through three stages:
The first stage is the fever stage. During this process, a lot of heat will be generated. Some molds, spore bacteria, etc. in the raw materials will be decomposed into sugars first under aerobic and low temperature conditions. The temperature can probably rise to Above 40 degrees.
The second stage enters the high temperature stage. As the temperature rises, the good hot microorganisms begin to become active. They decompose some organic matter such as cellulose and continue to generate heat until 70-80 degrees Celsius. At this time, the microorganisms including good hot microorganisms begin to die or dormant. .
The third is the beginning of the cooling phase. At this time, the organic matter has basically been decomposed. When the temperature returns to below 40 degrees, the microorganisms participating in the first process become active again. If the temperature is cooled too fast, it means that the decomposing is not enough, and it can be turned over again. Perform the second temperature increase.
The decomposing process of organic matter during fermentation is actually the whole process of active participation of microorganisms. We can add some starter containing compound bacteria to accelerate the decomposing of organic fertilizer.
Disclaimer: Part of the data in this article is for reference only.
Post time: Sep-09-2021