At present, the preferred method of decomposing organic fertilizer is high temperature composting. High-temperature composting is based on organic fertilizers and crop straws. It is best not to mix soil in the heap. The high temperature produced by fermentation can kill germs, eggs and weed seeds, and the fertilizer is cooked quickly. However, the common compost has more fermentation due to more soil mixing, and the compost temperature changes during the decomposing process are smaller, the time required for decomposing is longer, and the quality is poor. The method of high-temperature composting is: adding organic fertilizer and crop straw (about 10 cm into a certain amount), adding a certain proportion of water (water content 50% to 60%), and a little more water in summer to prevent nitrogen fertilizer from ashing. Winter should be less, so as not to cause fever due to poor ventilation. After that, stacking is carried out, and the height and width of the pile are 1.5 to 2 meters each, and the length is not limited, and the fine soil of 4 to 6 cm thick is covered outside the pile. The pre-stack rot is a good gas fermentation. To loosen the ventilation, a plurality of vent holes can be placed in the pile. After 20 days of pile rot, the first turn is turned over, the outer layer is turned over to the inner layer, and the inner layer is turned over to the outer layer. Continue to pile up for 20 days and carry out the second turn. When the surface of the compost forms white hair mainly composed of fungal hyphae, the Peugeot compost enters the stage of anaerobic fermentation. At this time, the pile should be compacted and sealed with soil to prevent the loss of nitrogen fertilizer, so that it can be slowly decomposed later. Generally, composting takes about 1-2 months in summer and about 3-4 months in winter to be used.
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