Laying hen excrement composting method capable of reducing compost raw material ammonia production amount

Abstract

The invention discloses a laying hen excrement composting method capable of reducing compost raw material ammonia production amount. The method comprises the following steps of: taking straw; cutting the straw into sections of 2-3 meters; mixing the laying hen excrement with rice bran and the straw sections according to a mass ratio of 28: 9: 1 to ensure that the initial water content of the compost raw material is 55-65 percent; composting for 30 days to finish a composting process to obtain fertilizers; and turning over the compost on 3rd, 7th, 11th, 15th, 19th and 25th days from the beginning of compositing. By the laying hen excrement composting method, the straw is added into the laying hen excrement-rice bran compost, so that the ammonia volatilization peak value is lowered, the volatilization time of the ammonia is shortened, and the ammonia production amount is reduced; the straw is added to promote the decomposition and utilization of soluble carbon, boost the temperature rise of the compost, improve the temperature of the compost, and relatively shortens the ripening time of the compost. The method is easy to operate, wide in sources of the raw materials, low in cost and high in practical value; the nitrogen loss is 8 percent; and the nitrogen loss of the conventional laying hen composting method is up to 23-65 percent.

Description

technical field [0001] The invention relates to a livestock and poultry manure composting method, in particular to a layer hen manure composting method capable of reducing the amount of ammonia gas generated as a composting material. Background technique [0002] Chicken manure has high moisture content and high nitrogen content. If it is not effectively treated or comprehensively utilized, it will seriously affect the development of layer farms, pose a threat to the ecological environment and public health around the farm, and cause a waste of resources. [0003] At present, there are about 1.5 billion commercial substitute laying hens in my country. According to the average daily manure production of each stock chicken is 0.100kg (Chen Wei et al., 2009), only based on the number of laying hens, at this stage, the annual manure production of laying hens in China is The production volume reached 43.8 million tons. It can be seen that the effective treatment of laying hen man...

AI Technical Summary

Problems solved by technology

[0012] In order to overcome the environmental pollution problem caused by the generation of ammonia in the existing method of laying hen manure composting (production of stench), the purpose of the present invention is to provide a composting method that is simple to operate, economical and can be widely used in laying hen breeding enterprises. A layer hen manure composting method specifically designed to reduce ammonia production and nitrogen loss during composting

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