1 Loose and stacked method The fresh livestock excrement in the circle is loosely accumulated in the composting site, and the ventilation is good during the accumulation process. Under high temperature conditions, in a short period of time, decomposed organic fertilizer can be produced, but nitrogen and other nutrient losses are large.
   2 The livestock excrement from the circle in the close-packing method is piled up layer by layer on the composting site, and is compacted while being stacked. If it is too dry, add water to keep moist, compost pile height to preferably 1.5 to 2 m, to be stacked is completed, the fertilizer with soil heap sealed, the temperature is generally maintained at 15 ℃ to 35 ℃. This method has less nitrogen loss. After about 3 to 4 months, the organic fertilizer can reach a semi-fermented state, and it can be completely decomposed for more than 6 months.
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