Method for composting sheep manure in large-scale farm

Abstract

The invention relates to a large-scale livestock farm sheep manure composting method which comprises the following steps: uniformly mixing sheep manure and straws to obtain a mixture; uniformly mixing a microbial agent with bran to obtain zymophyte; the mixture and a leavening agent are evenly mixed and then subjected to aerobic decomposition, sheep manure compost is obtained, and the method is characterized in that the sugar content in the mixture is 38-41%, the carbon nitrogen ratio is 24-26: 1, and the EC value is 4.2-4.8; the sugar content in the sheep manure compost is 19-24%, the carbon-nitrogen ratio is (15-18): 1, and the EC value is 2.8-3.2; the sugar content and the carbon-nitrogen ratio are both calculated on a dry basis. According to the method, the sugar content, the carbon-nitrogen ratio and the EC value in the mixture are set in the early stage, and the sugar content, the carbon-nitrogen ratio and the EC value in the sheep manure compost are detected in the later stage, so that the sheep manure decomposition has specific indexes, the sheep manure decomposition degree can be rapidly detected, and industrial operation is realized.

Description

Technical Field

[0001] The invention relates to a method for composting sheep manure in a large-scale breeding farm. Background Art

[0002] With the progress of society, people's demand for meat is increasing, and large-scale and intensive livestock and poultry farming has emerged on a large scale. While providing people with sufficient meat, livestock and poultry manure has also increased, bringing challenges to the environmental protection of farms. The problem of livestock and poultry manure needs to be solved urgently.

[0003] Livestock and poultry manure can be used as fertilizer after being decomposed, turning waste into treasure. The manure of cattle, sheep and other livestock and poultry contains a large amount of difficult-to-degrade substances such as cellulose, hemicellulose and lignin. These substances become a major bottleneck restricting their composting treatment during the composting process, resulting in a longer entire composting fermentation cycle and incomplete substrate degradation. In order to understand the maturity of the compost in a timely manner, the compost needs to be tested. At present, the index used to detect the maturity of livestock and poultry manure is the seed germination index (GI) ≥ 70%, but the regulation requires 48 hours of cultivation in the dark, and it is only the minimum index. There are problems of long detection time and low efficiency. Under the double superposition of long composting time and 48 hours of detection time, this increases the amount of manure that needs to be processed in the farm, increasing the processing pressure of the breeder. There are two solutions, one is to increase the scale of the farm, and the other is to reduce the index of mature compost. However, the scale of many farms is certain, and breeders are more willing to raise more livestock and poultry to increase income, rather than reduce the scale of breeding to treat livestock and poultry manure. Therefore, expanding the scale is not the best choice, and reducing the index of mature compost may result in the application of mature compost to sensitive crops, affecting crop growth, and even causing crop yield reduction. Therefore, the above two solutions have problems in practical application and are not the best choice.

[0004] In addition, different crops have different sensitivities. Currently, there are many different ways of composting, and the material ratio and maturity conditions are often based on experience. This results in the same materials meeting the GI requirements after composting, but the application effects are not the same, especially when applied to different crops, the effects may vary greatly.

[0005] The market needs a customized composting method that is suitable for large-scale farming. The compost prepared by this method is required to have good and consistent effects, and be equipped with a corresponding detection method, which is required to be fast and accurate. Summary of the invention

[0006] The present invention provides a method for composting sheep manure in large-scale breeding farms, and solves the technical problem of designing a customized composting method suitable for large-scale breeding. The compost prepared by the method is required to have good and consistent effects, and is equipped with a corresponding detection method, and the detection method is required to be fast, accurate and easy to implement.

[0007] In order to solve the above technical problems, the present invention adopts the following technical solutions: A method for composting sheep manure in a large-scale breeding farm comprises the following steps: mixing sheep manure and straw to obtain a mixture; mixing a Jinbaobei starter and bran to obtain fermentation bacteria; mixing the mixture and the fermentation bacteria to obtain a pre-pile; aerobically composting the pre-pile to obtain sheep manure compost after testing to be qualified; the mixture has a sugar content of 38-41%, a carbon-nitrogen ratio of 24-26:1, and an EC value of 4.2-4.8; the sheep manure compost has a sugar content of 19-24%, a carbon-nitrogen ratio of 13-16:1, and an EC value of 2.8-3.2; the sugar content and the carbon-nitrogen ratio are both calculated on a dry basis; the sugar comprises monosaccharides and polysaccharides.

[0008] The straw is crushed straw; the crushed straw is 1 to 3 cm long; The mass ratio of Gymboree starter and bran is 1:9-12.

[0009] The aerobic composting is carried out under the premise of maintaining the moisture content of the pre-compost at 55-65%, and the compost needs to be turned three days before composting, with an interval of 4-6 hours. After three days, the compost is turned when the compost temperature reaches 65°C; the aerobic composting condition is pH 6.0-8.5.

[0010] The moisture content of the pre-pile is 55-65%. The aerobic composting is carried out under the premise of maintaining the moisture content of the pre-pile at 55-65%. The compost needs to be turned three days before composting, and the turning interval is 4-6 hours. After three days, the compost is turned when the compost temperature reaches 65°C. The aerobic composting condition is pH 6.0-8.5.

[0011] The mass ratio of the mixture to the fermentation bacteria is 999-999.9:0.1-1.

[0012] The mass ratio of the mixture to the fermentation bacteria is 999-999.9:0.1-1.

[0013] The invention has the following beneficial technical effects: 1) The compost prepared in this application has good and consistent effects.

[0014] 2) This application sets the sugar content, carbon-nitrogen ratio and EC value in the mixture for standard formulation to ensure the stability of the product, which is suitable for large-scale farms and is conducive to subsequent testing.

[0015] 3) This application detects the sugar content, carbon-nitrogen ratio and EC value in the compost and sets the range of sugar content, carbon-nitrogen ratio and EC value in the compost, so as to make the detection indicators more reasonable. It is applied to large-scale breeding, which can not only quickly detect the maturity of the compost, but also has a good effect in agriculture when the compost is prepared. DETAILED DESCRIPTION

[0016] In order to better understand the above technical solution, the technical solution of the present invention is described in detail below in conjunction with preferred examples. Example 1

[0017] A method for composting sheep manure in a large-scale breeding farm comprises the following steps: mixing sheep manure and wheat straw to obtain a mixture; mixing a Jinbaobei starter and bran to obtain fermentation bacteria; mixing the mixture and the fermentation bacteria to obtain a pre-pile; aerobically composting the pre-pile; and obtaining sheep manure compost after testing to be qualified, wherein the mixture has a sugar content of 39.6%, a carbon-nitrogen ratio of 25.5:1, and an EC value of 4.5; and the sheep manure compost test results show that the sugar content is 21.2%, the carbon-nitrogen ratio is 14.7:1, and the EC value is 3.0; and the sugar content and the carbon-nitrogen ratio are both measured on a dry basis.

[0018] The straw is crushed straw; the crushed straw is 1 to 3 cm long; The mass ratio of Gymboree starter and bran is 1:10.

[0019] The aerobic composting is carried out under the premise of maintaining the moisture content of the pre-compost at 58-62%, and the compost needs to be turned three days before composting, with an interval of 5 hours. After three days, the compost is turned when the compost temperature reaches 65°C; the aerobic composting condition is pH 7.5-8.5.

[0020] The mass ratio of the mixture to the fermentation bacteria is 999.8:0.2. Example 2

[0021] A method for composting sheep manure in a large-scale breeding farm comprises the following steps: mixing sheep manure and wheat straw to obtain a mixture; mixing a Jinbaobei starter and bran to obtain fermentation bacteria; mixing the mixture and the fermentation bacteria to obtain a pre-pile; aerobically maturing the pre-pile; and obtaining sheep manure compost after testing to be qualified. The method is characterized in that the mixture has a sugar content of 40.4%, a carbon-nitrogen ratio of 26.5:1, and an EC value of 4.3; the sheep manure compost test results show that the sugar content is 22.6%, the carbon-nitrogen ratio is 14.5:1, and the EC value is 2.9; and the sugar content and the carbon-nitrogen ratio are both measured on a dry basis.

[0022] The straw is crushed straw; the crushed straw is 1 to 3 cm long; The mass ratio of Gymboree starter culture and bran is 1:11.

[0023] The aerobic composting is carried out under the premise of maintaining the moisture content of the pre-compost at 57-62%, and the compost needs to be turned three days before composting, with an interval of 4 hours. After three days, the compost is turned when the compost temperature reaches 65°C; the aerobic composting condition is pH 7.5-8.5.

[0024] The mass ratio of the mixture to the fermentation bacteria is 999.7:0.3. Example 3

[0025] A method for composting sheep manure in a large-scale breeding farm comprises the following steps: mixing sheep manure and corn stalks to obtain a mixture; mixing a Jinbaobei starter and bran to obtain fermentation bacteria; mixing the mixture and the fermentation bacteria to obtain a pre-pile; aerobically composting the pre-pile to obtain sheep manure compost after testing to be qualified; the mixture has a sugar content of 40.2%, a carbon-nitrogen ratio of 25.4:1, and an EC value of 4.4; the sheep manure compost test results show that the sugar content is 21.0%, the carbon-nitrogen ratio is 15.1:1, and the EC value is 2.9; the sugar content and the carbon-nitrogen ratio are both calculated on a dry basis.

[0026] The straw is crushed straw; the crushed straw is 1 to 3 cm long; The mass ratio of Gymboree starter and bran is 1:10.

[0027] The aerobic composting is carried out under the premise of maintaining the moisture content of the pre-compost at 58-65%, and the compost needs to be turned three days before composting, with an interval of 6 hours. After three days, the compost is turned when the compost temperature reaches 65°C; the aerobic composting condition is pH 7.0-8.5.

[0028] The mass ratio of the mixture to the fermentation bacteria is 999.5:0.5. Example 4

[0029] A method for composting sheep manure in a large-scale breeding farm comprises the following steps: mixing sheep manure, corn straw and wheat straw to obtain a mixture; mixing a Jinbaobei starter and bran to obtain fermentation bacteria; mixing the mixture and the fermentation bacteria to obtain a pre-pile; aerobically composting the pre-pile to obtain sheep manure compost after testing to be qualified, wherein the sugar content in the mixture is 40.5%, the carbon-nitrogen ratio is 25.3:1, and the EC value is 4.5; the sheep manure compost test result shows that the sugar content is 21.2%, the carbon-nitrogen ratio is 14.4:1, and the EC value is 2.9; the sugar content and the carbon-nitrogen ratio are both calculated on a dry basis.

[0030] The straw is crushed straw; the crushed straw is 1 to 3 cm long; The mass ratio of Gymboree starter to bran is 1:12.

[0031] The aerobic composting is carried out under the premise of maintaining the moisture content of the pre-compost at 58-62%, and the compost needs to be turned three days before composting, with an interval of 5 hours. After three days, the compost is turned when the compost temperature reaches 65°C; the aerobic composting condition is pH 7.0-8.5.

[0032] The mass ratio of the mixture to the fermentation bacteria is 999.4:0.6.

[0033] The Jinbaobei starter in the above examples was purchased from Beijing Huaxia Kangyuan Technology Co., Ltd.

[0034] The beneficial effects of the present invention are further illustrated below in conjunction with test data: 1.1 Experimental location: a goat breeding farm in Dongquan Township, Zhang County, Dingxi City, Gansu Province.

[0035] 1.2 Experimental tests: sugar content (%), carbon-nitrogen ratio, EC value in the mixture and sugar content (%), carbon-nitrogen ratio and EC value in the compost, seed germination index (GI) (%).

[0036] 1.3 Test samples: Comparison 1 (except that the Jinbaobei fermentation agent was replaced by the organic fertilizer decomposition agent purchased from Beihai Qiangxing Biotechnology Co., Ltd., the other implementation methods were consistent with Example 1, and the composting days were the same. In terms of proportion, the sugar content (%), carbon-nitrogen ratio, and EC value in the mixture were consistent with those in Example 1, and the compost sugar content was 22.1%, the carbon-nitrogen ratio was 15.1:1, and the EC value was 3.1, which was close to the data in Example 1), Comparison 2 (except that the Jinbaobei fermentation agent was replaced by the EM bacteria purchased from Shandong Wanyang Biotechnology Co., Ltd., the other implementation methods were consistent with Example 1, and the composting days were the same. In terms of proportion, the sugar content (%), carbon-nitrogen ratio, and EC value in the mixture were consistent with those in Example 1. , EC value is consistent with Example 1, the sugar content of the compost is 21.6%, the carbon-nitrogen ratio is 14.9:1, and the EC value is 3.1, which is close to the data in Example 1), Comparison 3 (except that the sugar content in the mixture is 32.4%, the carbon-nitrogen ratio is 27.3:1, the EC value is 4.9, the sugar content in the compost is 18.4%, the carbon-nitrogen ratio is 16.9:1, and the EC value is 3.4, all others are consistent with Example 1), Comparison 4 (except that the sugar content in the sheep manure compost is 26.4%, the carbon-nitrogen ratio is 14.9, and the EC value is 3.2, all others are consistent with Example 1, including the data of the mixture), and sheep manure compost prepared in Example 1, Example 2 and Example 3.

[0037] 1.4 Experimental methods: Sugar content was detected by the phenol-sulfuric acid method; organic carbon was detected by the potassium dichromate volumetric method; nitrogen was detected by the Kjeldahl method; EC value was determined by the dilution method; seed germination index (GI) was carried out in accordance with the NY / T 505-2021 standard. The seeds used in the GI test were cucumber seeds and cabbage seeds, respectively, with 20 cucumber seeds and 20 cabbage seeds corresponding to each treatment.

[0038] Except for the experimental treatment, other operations were the same in this experiment.

[0039] Note: Cabbage seeds and cucumber seeds have different sensitivities, so their germination indexes are different. Cabbage is relatively more sensitive.

[0040] Regarding the composting data of Comparison 1 and Comparison 2, due to the different selected strains, the composting data can only be controlled to be consistent as much as possible, but cannot be completely consistent. Therefore, there is a slight difference between the composting data of Comparison 1, Comparison 2 and Example 1.

[0041] 2 Results and analysis Sugar content, carbon-nitrogen ratio, EC value in the mixture, sugar content, carbon-nitrogen ratio and EC value in the compost, and seed germination index (GI) (%, see Table 1 Table 1

[0042] From the data comparison of Comparison 1, Comparison 2 and Example 1 in Table 1, it can be seen that the composts prepared with different fermentation agents have different effects under the premise of meeting the detection indicators formulated in this application, that is, the selection of the fermentation agent affects the use effect of the present application. In the test of GI applied to cucumber, although there is a gap between Comparison 1 and Comparison 2 and the present application, the gap is obviously not as good as that applied to cabbage, that is, cabbage is highly sensitive, that is, Comparison 1 and Comparison 2 are applicable to less sensitive crops, but the effect is not satisfactory when applied to sensitive crops.

[0043] It can be seen from the comparison of the data of Comparison 3, Comparison 4 and Example 1 that Comparison 3 is the sugar content (%), carbon-nitrogen ratio, EC value in the mixture and the sugar content (%), carbon-nitrogen ratio and EC value in the compost, which are all different from those specified in the present application. Comparison 3 is the sugar content (%), carbon-nitrogen ratio and EC value in the mixture are the same as those in Example 1, but the sugar content (%) in the compost exceeds the detection value range set in the present application, and the carbon-nitrogen ratio and EC value are within the detection value range set in the present application. Finally, the compost prepared by Comparison 3 and Comparison 4 is also different from that prepared in Example 1 of the present application in terms of effect. In the test of GI applied to cucumber, although there is a gap between Comparison 3 and Comparison 4 and the present application, the gap is obviously not as good as that applied to cabbage, that is, cabbage is more sensitive, that is, Comparison 3 and Comparison 4 are applicable to less sensitive crops, but the effect is not satisfactory when applied to sensitive crops.

[0044] In summary, the selection of fermentation strains, the material ratio in the mixture, and the setting of detection indicators in composting will all affect the effect of the prepared compost.

Claims

1. A method for composting sheep manure in a large-scale farm, comprising: mixing sheep manure and straw to obtain a mixture; mixing Jinbaobei starter and bran to obtain fermentation bacteria; mixing the mixture and the fermentation bacteria to obtain a pre-pile; aerobically composting the pre-pile, and obtaining sheep manure compost after testing to be qualified, characterized in that: The sugar content in the mixture is 38-41%, the carbon-nitrogen ratio is 24-26:1, and the EC value is 4.2-4.8; the sugar content in the sheep manure compost is 19-24%, the carbon-nitrogen ratio is 13-16:1, and the EC value is 2.8-3.2; the sugar content and carbon-nitrogen ratio are both calculated on a dry basis; the sugar includes monosaccharides and polysaccharides.

2. The method for composting sheep manure in large-scale breeding farms as claimed in claim 1, characterized in that: The straw is crushed straw; the crushed straw is 1 to 3 cm long.

3. The method for composting sheep manure in large-scale breeding farms as claimed in claim 1 or 2, characterized in that: The mass ratio of Gymboree starter and bran is 1:9-12.

4. The method for composting sheep manure in large-scale breeding farms as claimed in claim 1 or 2, characterized in that: The aerobic composting is carried out under the premise of maintaining the moisture content of the pre-compost at 55-65%, and the compost needs to be turned three days before composting, with an interval of 4-6 hours. After three days, the compost is turned when the compost temperature reaches 65°C; the aerobic composting condition is pH 6.0-8.

5.

5. The method for composting sheep manure in large-scale breeding farms as claimed in claim 3, characterized in that: The moisture content of the pre-pile is 55-65%. The aerobic composting is carried out under the premise of maintaining the moisture content of the pre-pile at 55-65%. The compost needs to be turned three days before composting, and the turning interval is 4-6 hours. After three days, the compost is turned when the compost temperature reaches 65°C. The aerobic composting condition is pH 6.0-8.

5.

6. The method for composting sheep manure in large-scale breeding farms as described in claims 1, 2, and 5, characterized in that: The mass ratio of the mixture to the fermentation bacteria is 999-999.9:0.1-1.

7. The method for composting sheep manure in large-scale breeding farms as claimed in claim 4, characterized in that: The mass ratio of the mixture to the fermentation bacteria is 999-999.9:0.1-1.

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