Manure should be used as organic fertilizer on agricultural crops, and it must be fermented. The compost turning machine provides the air needed for the activities of the microorganisms themselves, so that the organism can grow and multiply normally and generate high temperature.
The material is turned over regularly by the turning machine to make the compost fermented material loose and breathable, thereby increasing the oxygen content in the material. This is a necessary process for composting fermentation and an important step in the production of organic fertilizer. The fermented compost is further processed into pellets with an organic fertilizer granulator, which is a commercial fertilizer.
Harm of applying manure without decomposition
1. Heavy metal hazards
At present, all kinds of feed additives are used in intensive aquaculture, and most of them contain heavy metal elements such as copper, zinc and lead. The utilization rate of trace elements in livestock and poultry is usually low, and they are discharged out of the body with feces and urine. The content of heavy metals increased with the increase of the amount of chicken manure.
The high content of heavy metals can obviously inhibit the growth of vegetables. When the concentration of Cu, Zn and Pb in soil was 50 mg / kg, the elongation of tomato root was inhibited to some extent. When the concentration of Cu and Zn reached 400 mg / kg, the elongation of pepper or tomato root did not grow. When the lead concentration reached 2000 mg / kg, the elongation of pepper root was seriously inhibited.
In addition, lead can easily replace magnesium and zinc, inhibit the enzyme activities related to chlorophyll synthesis, affect the synthesis of chlorophyll, the content of chlorophyll in leaves decreases, the heart and leaves of pepper turn yellow, the seedlings are not long, and the growth point development is hindered
2. About the influence of caustic soda (possible, not used)
Some large chicken farms also use caustic soda. Caustic soda is a strong alkali, and it is a commonly used disinfection product in the breeding industry. The chicken farms use caustic soda to disinfect and wash the chicken manure, leaving a large amount of caustic soda in the chicken manure. In addition, many criminals add caustic soda (sodium hydroxide) to the chicken manure in order to ferment chicken manure quickly, increase the volume of chicken manure, and make huge profits, which seriously damages the soil structure, damages plant roots, affects the growth of vegetables, and produces vegetable seedlings. Yellow, poor growth of seedlings.
Faeces after fermentation is a kind of high-quality fertilizer source. It can also be used as raw material to add into NPK fertilizer production line to prepare special fertilizer suitable for crops in different regions.