Method for harmlessly treating chicken manure of laying hens and preparing bio-organic fertilizer

Abstract

The invention relates to the technical field of bio-fertilizers, and discloses a method for harmlessly treating laying hen manure and preparing a bio-organic fertilizer, which comprises the following steps: step 1, carrying the laying hen manure into a relatively closed raw material warehouse shed; 2, sawdust and bagasse are mixed to form a first ingredient, and laying hen manure sewage is absorbed in the mode that the first ingredient and laying hen manure are stacked in a layered mode; step 3, turning the stack formed in the step 2 for three times, and step 4, adding calcium superphosphate powder during the third turning, and uniformly turning to obtain a material 2; 5, the second material is turned to enable the moisture content to be smaller than 30%, then packaging is conducted, and the biological organic fertilizer is obtained.The mode of combining microbial fermentation and physical turning is adopted, natural nutrients in chicken manure are completely reserved, the natural nutrients are converted into forms easy to absorb by crops, and the fertilizer with balanced nutrients is formed.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of biological fertilizer, in particular to a method for harmless treatment of egg chicken manure and preparation of biological organic fertilizer. BACKGROUND

[0002] With the continuous improvement of the scale and industrialization of the egg chicken breeding industry in China, the problem of manure produced in the breeding process is becoming more and more serious. Egg chicken manure has the characteristics of 80% water content and strong odor. If not properly treated, it will cause great harm to the environment. In the past and some current breeding production, there are often cases of directly using livestock and poultry manure as crop fertilizer, only simple composting treatment, or even directly discharging into rivers.

[0003] Egg chicken manure and sewage have high content of nitrogen, phosphorus and potassium, and also carry a large amount of pathogenic microorganisms and parasites. If the egg chicken manure without or insufficient treatment is applied to farmland, it is easy to cause crop seedling burning phenomenon, destroy soil structure, and penetrate and pollute groundwater, causing serious negative impact on the ecological environment and agricultural production. In addition, the digestion capacity of egg chickens for feed is limited, and a large amount of nutrients in the feed will be excreted outside the body with the manure. Through detection, egg chicken manure contains a large amount of crude protein, crude fat, crude fiber and other nutrients. Therefore, from the composition, the organic matter content in chicken manure is high, and reasonable utilization can help to enhance the water retention and air permeability of the soil. Its nutrient content is rich, and has great utilization space.

[0004] On this basis, through patent network retrieval, the Chinese patent with patent application number CN202010388287.5 discloses a chicken manure biological organic fertilizer and a preparation method thereof.

[0005] The existing chicken manure treatment method is mostly through composting treatment or chemical treatment. Composting treatment relies on microorganisms in the natural environment for decomposition, which has the defect of polluting the surrounding environment. At the same time, chemical treatment will damage the nutrients in the chicken manure, resulting in that the subsequent product can only be used as ordinary landfill and cannot be converted into high-quality fertilizer.

[0006] In view of the above problems, a method for harmless treatment of egg chicken manure and preparation of biological organic fertilizer is proposed. SUMMARY

[0007] The purpose of the present application is to provide a method for harmless treatment of egg chicken manure and preparation of biological organic fertilizer. The present application works with the device, thereby solving the problem that the existing chicken manure treatment method is mostly through composting treatment or chemical treatment. Composting treatment relies on microorganisms in the natural environment for decomposition, which has the defect of polluting the surrounding environment. At the same time, chemical treatment will damage the nutrients in the chicken manure, resulting in that the subsequent product can only be used as ordinary landfill and cannot be converted into high-quality fertilizer.

[0008] To achieve the above object, the present application provides the following technical solution: A method for harmless treatment of laying hen manure and production of biological organic fertilizer, characterized by comprising the following steps:

[0009] Step one, transport the laying hen manure to a relatively closed raw material warehouse shed;

[0010] Step two, mix wood sawdust and bagasse in a weight ratio of 1:2 to form a mixture one, and use the mixture one and the laying hen manure in a layered stacking manner to absorb the laying hen manure sewage, and the specific stacking method is as follows: lay a layer of 10 cm thick mixture one on the ground, stack 40 cm thick laying hen manure on top, evenly spray fermentation bacteria on the laying hen manure, and so on, and stack 4 layers in total, and stack a layer of 10 cm thick mixture one on the top;

[0011] Step three, turn over the pile formed in step two, a total of 3 times, the first time after 14 weeks of stacking, and the mixture is evenly turned over to obtain a mixture one with a ratio of laying hen manure: wood sawdust: bagasse of 5.5:1.5:3; the second time after 10 days of the first time, and the mixture is evenly turned over to make the water content of the mixture fully volatilize to less than 40%; the third time after 7 days of the second time;

[0012] Step four, add calcium superphosphate powder during the third time of turning over, and the mixture is evenly turned over to obtain a mixture two with a water content of 30-35% and a ratio of laying hen manure: wood sawdust: bagasse: calcium superphosphate powder of 5.5:1.5:3:1;

[0013] Step five, turn over the mixture two to make the water content less than 30%, and then package to produce the biological organic fertilizer.

[0014] Preferably, the laying hen manure layered with the mixture one in step two is 80% of the total amount of laying hen manure, so as to ensure the accuracy of the subsequent mixture ratio and the effect of absorbing laying hen manure sewage.

[0015] Preferably, the ratio of laying hen manure: wood sawdust: bagasse in the mixture after the first time of turning over in step three is accurately 5.5:1.5:3, which lays a foundation for the subsequent addition of calcium superphosphate powder and the balanced nutrients of the finished fertilizer.

[0016] Preferably, the addition of calcium superphosphate powder in step four is synchronized with the third time of turning over, and the turning over operation needs to ensure that the calcium superphosphate powder is fully mixed with the mixture, and the water content of the mixture two is stably controlled at 30-35%, so as to avoid mold growth due to too high water content or affect the fermentation effect due to too low water content.

[0017] Preferably, the turning over of the mixture two in step five needs to target a water content of less than 30%, and the packaging operation can be performed after the water content meets the standard, so as to ensure the storage stability of the biological organic fertilizer and prevent caking and deterioration during storage.

[0018] Preferably, the spraying of the fermentation bacteria in step two needs to cover the entire surface of the chicken manure layer, and the spraying amount needs to meet the subsequent composting fermentation requirement for microbial activity, to ensure that the organic matter in the chicken manure can be effectively decomposed, and at the same time, the pathogenic microorganisms can be preliminarily killed.

[0019] Preferably, the total number of layers of the composting pile formed by the layered stacking in step two is 6 layers, wherein the number of layers of the ingredients is 3 layers, the bottom layer and the top layer are each 1 layer, and 1 layer is interposed between every two layers of chicken manure in the middle, and the number of layers of the chicken manure layer is 4 layers. The design of the number of layers can balance the sewage absorption, odor isolation and fermentation efficiency, and avoid the waste of space caused by the over-high internal anaerobic or the over-low internal anaerobic.

[0020] Preferably, the time intervals of the three times of turning in step three are 14 weeks, 10 days and 7 days, respectively. The time setting is based on the change rule of microbial activity in the fermentation process of the chicken manure, which can ensure that the materials in different fermentation stages can be in the best reaction environment, and realize the dual goals of harmlessness and nutrient conversion.

[0021] Compared with the prior art, the application has the following beneficial effects:

[0022] 1. The application can effectively kill the pathogenic microorganisms and parasites carried in the chicken manure by spraying the fermentation bacteria to cover the chicken manure layer in step two and the natural temperature rise in the composting process, thereby avoiding the risk of disease transmission caused by the untreated chicken manure applied to farmland, and eliminating the hidden danger of seepage pollution of underground water and rivers caused by direct discharge, thereby protecting the water resource ecology.

[0023] 2. The application can completely retain the natural nutrients in the chicken manure by combining microbial fermentation and physical turning, and convert the natural nutrients into a form that is easy for crops to absorb. The scientific proportioning of chicken manure, wood chips, bagasse, and superphosphate powder in the finished organic fertilizer further supplements phosphorus elements, forms a balanced nutrient fertilizer, and avoids the soil nutrient imbalance caused by the single application of manure.

[0024] 3. The application uses agricultural wastes such as wood chips and bagasse as one of the raw materials, which is easy to obtain and low in cost, thereby reducing the material input cost of manure treatment. Moreover, the finished organic fertilizer can replace part of the chemical fertilizer, thereby reducing the fertilizer procurement cost of crop planting, reducing the crop seedling loss caused by excessive application of chemical fertilizer, and indirectly improving the economic benefit of planting. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 The figure is a schematic diagram of the overall process of the application;

[0026] Figure 2 The figure is a schematic diagram of the proportioning of raw materials of the application. DETAILED DESCRIPTION

[0027] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments of the present application, all the other embodiments obtained by a person of ordinary skill in the art without creative effort belong to the protection scope of the present application.

[0028] In order to further understand the content of the present application, the present application will be described in detail with reference to the drawings.

[0029] In combination with Figure 1 and Figure 2 A method for harmless treatment of laying hen manure and production of biological organic fertilizer, comprising the following steps:

[0030] Step one, laying hen manure is transported to a relatively closed raw material warehouse shed;

[0031] Step two, wood shavings and bagasse are mixed in a weight ratio of 1:2 to form a material one, and the laying hen manure is layered and stacked with the material one to absorb the laying hen manure sewage, and the specific stacking method is as follows: a layer of 10 cm thick material one is laid on the ground, 40 cm thick laying hen manure is stacked on the material one, and fermentation bacteria are uniformly sprayed on the laying hen manure, and so on, and each layer is stacked for 4 layers, and a layer of 10 cm thick material one is stacked on the top;

[0032] Step three, the pile formed in step two is turned over, and the turning over is performed for 3 times, the first turning over is performed after 14 weeks of stacking, and the turning over is uniform to obtain material one with a ratio of laying hen manure: wood shavings: bagasse of 5.5:1.5:3; the second turning over is performed after 10 days of the first turning over, and the turning over is uniform to make the water content of the material fully volatilize to less than 40%; the third turning over is performed after 7 days of the second turning over;

[0033] Step four, calcium superphosphate powder is added during the third turning over, and the turning over is uniform to obtain material two with a water content of 30-35% and a ratio of laying hen manure: wood shavings: bagasse: calcium superphosphate powder of 5.5:1.5:3:1;

[0034] Step five, the material two is turned over to make the water content less than 30%, and then is packaged to produce biological organic fertilizer.

[0035] The laying hen manure layered and stacked with the material one in step two is 80% of the total amount of laying hen manure, so as to ensure the accuracy of the subsequent material ratio and the effect of laying hen manure sewage absorption.

[0036] In step three, the ratio of laying hen manure, wood shavings and bagasse in the material after the first turning over needs to be accurately 5.5:1.5:3, so as to lay a foundation for subsequent addition of calcium superphosphate powder and balanced nutrients of the finished fertilizer.

[0037] The addition of calcium superphosphate powder in step four needs to be synchronized with the third turning, and the turning operation needs to ensure that the calcium superphosphate powder is fully mixed with the material, and at the same time, the moisture content of the material two is stably controlled at 30-35%, to avoid mold growth caused by excessive moisture or affect the fermentation effect caused by low moisture.

[0038] In step five, the turning of the material two needs to be targeted at a moisture content of less than 30%, and the packaging operation can be carried out after the moisture meets the standard, to ensure the storage stability of the bio-organic fertilizer and prevent caking and deterioration during storage.

[0039] In step two, the spraying of the fermentation bacteria needs to cover the entire chicken manure layer surface, and the spraying amount needs to meet the subsequent needs of the microbial activity of the fermentation, to ensure that the organic matter in the chicken manure can be effectively decomposed, and at the same time, the pathogenic microorganisms can be preliminarily killed.

[0040] In step two, the total number of layers of the pile formed by the layered stacking is 6, of which the number of layers of the ingredient one is 3, the bottom layer and the top layer are each 1 layer, and the middle layer is 1 layer between every two layers of chicken manure, and the number of layers of the chicken manure layer is 4. The number of layers is designed to balance the sewage absorption, odor isolation and fermentation efficiency, to avoid the internal anaerobic caused by too high pile height or the space waste caused by too low pile height.

[0041] In step three, the time interval of the three times of turning is 14 weeks, 10 days and 7 days, respectively. The time setting is based on the change rule of microbial activity in the chicken manure fermentation process, which can ensure that the material in different fermentation stages can be in the best reaction environment, to realize the dual goals of harmless and nutrient transformation.

[0042] The application will be further described below in combination with examples.

[0043] Example 1:

[0044] Under the mild climate conditions in spring, the average temperature is 15-22℃, and the relative humidity is 60-70%;

[0045] Raw material preparation and storage: collect fresh chicken manure from a certain scale layer chicken farm on the same day, and the water content is detected as 80%, immediately transport to a closed raw material warehouse shed with a ventilation window, to avoid the spread of odor caused by long-term exposure of chicken manure, and prevent rainwater from penetrating in spring.

[0046] Mixing and layering: Wood chips and bagasse were mixed in a ratio of 1:2 by weight in a drum mixer to ensure uniform mixing and to produce ingredient one; A treatment area was demarcated on the hardened ground in the raw material warehouse, and a first layer of ingredient one was laid down, with a thickness of 10 cm (about 50 kg) controlled by a laser thickness gauge; Then, 80% of the total chicken manure was evenly placed on top of the first layer of ingredient one, and a thickness of 40 cm was controlled by a scraper conveyor; Subsequently, a motorized sprayer was used to evenly spray the fermentation bacteria liquid on the surface of the chicken manure layer, ensuring that the bacteria liquid covered all areas without dead angles; According to the combination of "10 cm ingredient one + 40 cm chicken manure + spraying fermentation bacteria", 4 layers were repeatedly stacked, and finally a layer of 10 cm thick ingredient one was laid on the top layer to form a pile, and the pile was surrounded by plastic film to prevent excessive water loss from the edges.

[0047] Piling and turning: During the piling period, the amount of ventilation was adjusted daily through the warehouse ventilation window, and the temperature was detected weekly by inserting a thermometer into the middle of the pile. After 14 weeks of piling, the temperature in the middle of the pile stabilized at 55-60°C, at which time the first turning was performed using a crawler-type turning machine to ensure that the materials at the bottom, middle, and top of the pile were thoroughly mixed. After turning, sampling was performed, and the ratio of chicken manure: wood chips: bagasse in the material was 5.5:1.5:3, resulting in material one; After 10 days of the first turning, the temperature in the middle of the pile dropped to 40-45°C, and the second turning was performed using the turning machine. After turning, the moisture content of the material was detected using a moisture meter, and the result was 38%; After 7 days of the second turning, the temperature of the pile stabilized at 35-40°C, and the third turning was performed. Before turning, the material was loosened to prepare for the addition of calcium superphosphate powder.

[0048] Adding calcium superphosphate powder: Based on the total amount of material one and the predetermined ratio, the required calcium superphosphate powder was calculated, and the calcium superphosphate powder was evenly spread on the material using a screw feeder, followed by 2 passes of turning using the turning machine to ensure that the calcium superphosphate powder was thoroughly mixed with the material; After turning, the moisture content of the material was detected to be 33%, resulting in material two.

[0049] Final processing and packaging: Material two was subjected to a fourth turning, and after turning, the moisture content was detected to be 28%. The material was then transported to an automatic packaging production line using a belt conveyor.

[0050] Example 2:

[0051] Under the conditions of high temperature and high humidity in summer, the average temperature was 28-35°C, and the relative humidity was 75-85%;

[0052] Raw material preparation and storage: Fresh chicken manure was collected, with a water content of 81%, and immediately transported to a closed raw material warehouse with a sunshade and a forced ventilation system. The axial flow fan in the warehouse was turned on to reduce the temperature inside the warehouse and prevent the chicken manure from rapidly decomposing due to high temperature.

[0053] Mixing and layering: according to the weight ratio of wood shavings: bagasse = 1:2, put into the mixer to prepare the raw material one; lay 10 cm thick raw material one in the processing area, pile 40 cm thick chicken manure, spray fermentation bacteria liquid on the surface of the chicken manure layer with a sprayer; repeat 4 layers, cover the top with 10 cm thick raw material one, cover the top of the pile with a layer of breathable non-woven fabric to prevent direct rainwater erosion and reduce excessive evaporation of water.

[0054] Piling and turning: during the piling, the forced ventilation system is started every day, and the pile temperature is detected every 3 days. After 14 weeks of piling, the temperature in the middle of the pile reaches 60-65℃, and the high temperature can enhance the sterilization effect. The first turning is carried out with a turning machine, and the material ratio after turning is 5.5:1.5:3 to obtain material one; after 10 days of the first turning, the pile temperature drops to 45-50℃, and the second turning is carried out. After the second turning, the moisture content is 39%; after 7 days of the second turning, the third turning is carried out, and the ventilation volume is appropriately increased during the turning to reduce the humidity of the pile.

[0055] Adding calcium superphosphate powder: calculate the required calcium superphosphate powder, evenly sprinkle into the material and turn 2 times, and detect the moisture content of 34% to obtain material two.

[0056] Final processing and packaging: the fourth turning is carried out on the material two, and the moisture content after turning is 29%. The material is transported to the automatic packaging production line through the belt conveyor.

[0057] Example 3:

[0058] In winter low-temperature dry climate conditions, the average temperature is 5-12℃, and the relative humidity is 40-50%;

[0059] Raw material preparation and storage: collect fresh chicken manure, which contains 79% of water, and transport it to a closed raw material warehouse with heating device. The temperature in the warehouse is controlled at 15-18℃ by the electric heating system to prevent the chicken manure from freezing due to low temperature, which affects the subsequent fermentation.

[0060] Mixing and layering: according to the weight ratio of wood shavings: bagasse = 1:2, put into the mixer to prepare the raw material one; lay 10 cm thick raw material one in the processing area, pile 40 cm thick chicken manure, spray fermentation bacteria liquid on the surface of the chicken manure layer with a sprayer; repeat 4 layers, cover the top with 10 cm thick raw material one, cover the top of the pile with a layer of breathable non-woven fabric to prevent direct rainwater erosion and reduce excessive evaporation of water.

[0061] Composting and turning: During the composting period, the warehouse temperature is maintained by heating devices. After 14 weeks of composting, the first turning is performed using a turning machine. After turning, the material ratio is detected to be 5.5:1.5:3, and material one is obtained. After 10 days of the first turning, the second turning is performed. After the second turning, the moisture content is detected to be 37%. After 7 days of the second turning, the third turning is performed. During the third turning, it is checked whether there is local dry clumping in the stack. If there is, a small amount of water is sprayed to moisten it.

[0062] Adding calcium superphosphate powder: Calculate the required calcium superphosphate powder, evenly sprinkle into the material, and turn 2 times. The moisture content is detected to be 32%, and material two is obtained.

[0063] Final processing and packaging: The fourth turning is performed on material two. After turning, the moisture content is detected to be 29%. The material is conveyed to the automatic packaging production line through a belt conveyor.

[0064] In summary, according to Figure 1 and Figure 2 It can be seen that the laying hen manure harmless treatment and biological organic fertilizer production method provided by the present application effectively solves the pain points of traditional composting pollution environment and chemical treatment destruction of nutrients through the scientific design of the five-step core process (closed storage, layered stacking, precise turning, addition of auxiliary materials, and standard packaging), combined with strict ratio control and time node control.

[0065] From the implementation effect under different climate conditions, the method has good adaptability: in the mild climate of spring, the finished organic fertilizer can significantly promote the growth of rubber trees and the accumulation of effective ingredients of Radix Morindae Officinalis; in the high temperature and high humidity environment of summer, through strengthening ventilation and sun protection, the fermentation efficiency can still be guaranteed, and after application, the rubber tree yield and Radix Morindae Officinalis disease can be reduced; in the low temperature and dry winter, with the help of heat preservation and temperature control measures, fermentation stagnation is avoided, and the finished product can also enhance the soil water retention, helping the seedlings to survive the winter.

[0066] Overall, the method not only realizes the harmless treatment of laying hen manure, but also fully retains and transforms the nutrient components in the chicken manure, and the biological organic fertilizer produced can improve soil structure, promote crop growth and quality improvement, providing a feasible technical scheme for large-scale laying hen manure treatment and agricultural green cycle development.

[0067] It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting; it is not intended to exclude myriad other embodiments of the present application that other inventors can develop based on the same general inventive concepts embodied by the described embodiments. That is, although the present application is described in terms of particular embodiments and illustrative figures, it should be apparent that the scope of the present application is not limited to these specific embodiments.

[0068] While the embodiments of the application have been shown and described herein, it will be understood by those skilled in the art that many changes, modifications, substitutions and alterations to these embodiments can be made without departing from the principles and spirits of the application, and it is intended that the scope of the application be limited solely by the scope of the appended claims and the equivalents thereof.

Claims

1. A method for harmlessly treating laying hen manure and producing bio-organic fertilizer, characterized in that, Includes the following steps: Step 1: Move the chicken manure from the laying hens to a relatively enclosed raw material storage shed; Step 2: Mix sawdust and bagasse in a 1:2 weight ratio to form ingredient 1. Use ingredient 1 and chicken manure in layers to absorb the wastewater from the chicken manure. The specific stacking method is to spread a 10cm thick layer of ingredient 1 on the ground, then pile a 40cm thick layer of chicken manure on top, and then spray fermentation bacteria evenly on the chicken manure. Repeat this process, stacking 4 layers in total, and then pile another 10cm thick layer of ingredient 1 on top. Step 3: Turn the compost pile formed in Step 2 three times. The first turning is carried out after 14 weeks of composting, to obtain material 1 with a chicken manure: sawdust: bagasse ratio of 5.5:1.5:

3. The second turning is carried out 10 days after the first turning, to ensure even turning and allow the material to fully evaporate moisture until the moisture content is less than 40%. The third turning is carried out 7 days after the second turning. Step 4: During the third turning of the pile, add superphosphate powder and turn the pile evenly to obtain material 2 with a moisture content of 30-35% and a ratio of chicken manure: sawdust: bagasse: superphosphate powder of 5.5:1.5:3:

1. Step 5: Turn the material 2 pile over to reduce the moisture content to less than 30%, then package it to make bio-organic fertilizer.

2. The method for harmless treatment of laying hen manure and production of bio-organic fertilizer according to claim 1, characterized in that: In step two, the chicken manure from laying hens that is layered and piled with ingredients in step one accounts for 80% of the total amount of chicken manure from laying hens, in order to ensure the accuracy of subsequent material proportions and the absorption effect of chicken manure wastewater.

3. The method for harmless treatment of laying hen manure and production of bio-organic fertilizer according to claim 1, characterized in that: In step three, after the first turning of the compost pile, it is necessary to ensure that the ratio of chicken manure, sawdust, and bagasse in the material is precisely 5.5:1.5:3, which lays the foundation for the subsequent addition of superphosphate powder and balanced nutrients in the finished fertilizer.

4. The method for harmless treatment of laying hen manure and production of bio-organic fertilizer according to claim 1, characterized in that: In step four, the addition of superphosphate powder must be carried out simultaneously with the third turning of the pile. The turning operation must ensure that the superphosphate powder is fully mixed with the material, and at the same time, the moisture content of material two should be stably controlled at 30-35% to avoid the material becoming moldy due to excessive moisture or affecting the fermentation effect due to excessively low moisture content.

5. The method for harmless treatment of laying hen manure and production of bio-organic fertilizer according to claim 1, characterized in that: In step five, the turning of material two should be carried out with a moisture content of less than 30%. Packaging can only be carried out after the moisture content reaches the standard to ensure the storage stability of the bio-organic fertilizer and prevent clumping and deterioration during storage.

6. The method for harmless treatment of laying hen manure and production of bio-organic fertilizer according to claim 1, characterized in that: In step two, the spraying of fermentation bacteria needs to cover the entire surface of the chicken manure layer, and the spray volume needs to meet the requirements of subsequent composting and fermentation for microbial activity, so as to ensure that the organic matter in the chicken manure can be effectively decomposed, and at the same time achieve the initial killing of pathogenic microorganisms.

7. The method for harmless treatment of laying hen manure and production of bio-organic fertilizer according to claim 1, characterized in that: The total number of layers in the compost pile formed by layering in step two is 6. The batching layer has 3 layers, the bottom layer and the top layer each have 1 layer, and there is 4 layers of chicken manure sandwiched between every two layers. The layer design can balance the absorption of sewage, the isolation of odor and the fermentation efficiency, and avoid the pile being too high, which would cause internal anaerobic conditions, or too low, which would cause space waste.

8. The method for harmless treatment of laying hen manure and production of bio-organic fertilizer according to claim 1, characterized in that: In step three, the time intervals for the three turnings are 14 weeks, 10 days, and 7 days, respectively. The time settings are based on the changes in microbial activity during chicken manure fermentation, which can ensure that the material is in the optimal reaction environment at different fermentation stages, achieving the dual goals of harmlessness and nutrient conversion.

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