Preparation method of biological organic fertilizer taking livestock excrements as raw materials

Abstract

The invention relates to a preparation method of biological organic fertilizer taking livestock excrements as raw materials. The preparation method comprises the following steps: mixing a microbial mixed bacterial agent, a combined enzyme agent, an organic raw material and water uniformly according to the ratio of (1-1.5):(0.5-1):100:(10-20), adjusting C / N and initial water content, performing aerobic fermentation at 25 to 50 DEG C for 7 to 10 days to obtain a microbial fermentation composition, and mixing the microbial fermentation composition, urea, calcium hydrogen phosphate and potassium chloride uniformly according to the ratio of (80-100):(15-20):(5-10), wherein the microbial mixed bacterial agent comprises bacillus subtilis, bacillus megatherium, bacillus mucilaginosus, bacillus cereus, bacillus licheniformis, aspergillus niger, aspergillus oryzae and bacillus thuringiensis; the combined enzyme agent is a mixture of protease, cellulase, glucanase, pectinase and lipase; and the organic material is a mixture of livestock excrements and straws. According to the design, stink and damage to soil are not liable to occur, and the composting period is short.

Description

technical field

[0001] The invention belongs to the field of bio-organic fertilizers, and in particular relates to a preparation method of bio-organic fertilizers using livestock and poultry manure as raw materials. Background technique

[0002] Waste is an important material basis for agricultural development. The long-term and large-scale use of chemical fertilizers in the production process of traditional agriculture and forestry will lead to soil compaction and degradation of the quality of agricultural products, the use of fertilizers will decrease, and the human living environment will be seriously polluted and destroyed. With the improvement of people's living standards, human beings have fully realized that it is necessary not only to survive in a good natural environment, but also to consume high-quality, safe and hygienic agricultural products. What plays a key role in this link is to use more bio-organic fertilizers in production and cultivation to reduce depende...

Examples

preparation example Construction

[0030] The preparation method comprises the following steps in turn:

[0031] Preparation of microbial fermentation composition: first mix the combined enzyme agent, microbial mixed bacterial agent and water according to the required ratio to form a degradation liquid, then add organic raw materials to the degradation liquid and mix to obtain a mixed material, and then adjust the mixed material The C / N mass ratio is 25-35:1, the initial moisture content is 50%-60%, and the mixed material is placed in a composting reactor for aerobic fermentation for 7-10 days to obtain a microbial fermentation composition, wherein the The temperature of aerobic fermentation is kept at 25-50°C;

[0032] Preparation of organic fertilizer: first crush the microbial fermentation composition, and then mix it with urea, calcium hydrogen phosphate and potassium chloride according to the required ratio.

[0033] The temperature of the aerobic fermentation was maintained at 35-45°C.

[0034] During t...

Embodiment 1

[0058] A kind of preparation method of the bio-organic fertilizer that takes livestock and poultry manure as raw material, carries out according to the following steps successively:

[0059] Pretreatment of raw materials: crush the straw into particles with a particle size of 10-20mm;

[0060] Preparation of microbial fermentation composition: first mix 1.5 parts of microbial mixed bacteria agent, 0.5 part of combined enzyme agent, 10 parts of water, 2 parts of sodium lauryl sulfate, and 0.5 part of salt to form a degradation solution, and then add it to the degradation solution Add 100 parts of organic raw materials and mix well to obtain a mixed material, then adjust the C / N mass ratio of the mixed material to 31:1, and the initial moisture content to 60%, and place the mixed material in a composting reactor for aerobic fermentation for 8 days. Obtain the microbial fermentation composition, wherein, the raw material composition of described microbial mixed bacterial agent is...

Embodiment 2

[0063] The difference with Example 1 is:

[0064] In the preparation step of the microbial fermentation composition, the weight ratio of microbial mixed bacterial agent, combined enzyme agent, organic raw material, water, sodium lauryl sulfate, and salt is 1.2:0.6:100:15:2.2:0.7, and the combined The enzyme agent is a mixture of 4000U / g protease, 2000U / g cellulase, 5000U / g glucanase, 3000U / g pectinase, 7000U / g lipase, and the organic raw materials are cow dung, sheep dung, chicken dung, A mixture of straw mixed at a weight ratio of 1:1:0.5:1, the C / N mass ratio of the mixed material is 29:1, the initial moisture content is 55%, the temperature of aerobic fermentation is kept at 35-45°C, and the aerobic The fermentation time is 10 days;

[0065] In the preparation step of the organic fertilizer, the weight ratio of the microbial fermentation composition, urea, calcium hydrogen phosphate and potassium chloride is 85:16:6:3.5.

technical field

[0001] The invention belongs to the field of bio-organic fertilizers, and in particular relates to a preparation method of bio-organic fertilizers using livestock and poultry manure as raw materials. Background technique

[0002] Waste is an important material basis for agricultural development. The long-term and large-scale use of chemical fertilizers in the production process of traditional agriculture and forestry will lead to soil compaction and degradation of the quality of agricultural products, the use of fertilizers will decrease, and the human living environment will be seriously polluted and destroyed. With the improvement of people's living standards, human beings have fully realized that it is necessary not only to survive in a good natural environment, but also to consume high-quality, safe and hygienic agricultural products. What plays a key role in this link is to use more bio-organic fertilizers in production and cultivation to reduce depende...

Examples

preparation example Construction

[0030] The preparation method comprises the following steps in turn:

[0031] Preparation of microbial fermentation composition: first mix the combined enzyme agent, microbial mixed bacterial agent and water according to the required ratio to form a degradation liquid, then add organic raw materials to the degradation liquid and mix to obtain a mixed material, and then adjust the mixed material The C / N mass ratio is 25-35:1, the initial moisture content is 50%-60%, and the mixed material is placed in a composting reactor for aerobic fermentation for 7-10 days to obtain a microbial fermentation composition, wherein the The temperature of aerobic fermentation is kept at 25-50°C;

[0032] Preparation of organic fertilizer: first crush the microbial fermentation composition, and then mix it with urea, calcium hydrogen phosphate and potassium chloride according to the required ratio.

[0033] The temperature of the aerobic fermentation was maintained at 35-45°C.

[0034] During t...

Embodiment 1

[0058] A kind of preparation method of the bio-organic fertilizer that takes livestock and poultry manure as raw material, carries out according to the following steps successively:

[0059] Pretreatment of raw materials: crush the straw into particles with a particle size of 10-20mm;

[0060] Preparation of microbial fermentation composition: first mix 1.5 parts of microbial mixed bacteria agent, 0.5 part of combined enzyme agent, 10 parts of water, 2 parts of sodium lauryl sulfate, and 0.5 part of salt to form a degradation solution, and then add it to the degradation solution Add 100 parts of organic raw materials and mix well to obtain a mixed material, then adjust the C / N mass ratio of the mixed material to 31:1, and the initial moisture content to 60%, and place the mixed material in a composting reactor for aerobic fermentation for 8 days. Obtain the microbial fermentation composition, wherein, the raw material composition of described microbial mixed bacterial agent is...

Embodiment 2

[0063] The difference with Example 1 is:

[0064] In the preparation step of the microbial fermentation composition, the weight ratio of microbial mixed bacterial agent, combined enzyme agent, organic raw material, water, sodium lauryl sulfate, and salt is 1.2:0.6:100:15:2.2:0.7, and the combined The enzyme agent is a mixture of 4000U / g protease, 2000U / g cellulase, 5000U / g glucanase, 3000U / g pectinase, 7000U / g lipase, and the organic raw materials are cow dung, sheep dung, chicken dung, A mixture of straw mixed at a weight ratio of 1:1:0.5:1, the C / N mass ratio of the mixed material is 29:1, the initial moisture content is 55%, the temperature of aerobic fermentation is kept at 35-45°C, and the aerobic The fermentation time is 10 days;

[0065] In the preparation step of the organic fertilizer, the weight ratio of the microbial fermentation composition, urea, calcium hydrogen phosphate and potassium chloride is 85:16:6:3.5.