Organic fertilizer produced by fermenting chicken manure and production method thereof

Abstract

The invention discloses an organic fertilizer produced by fermenting chicken manure, which comprises the following components in parts by weight: 60-70 parts of fermented solids, 12-15 parts of modified coal gangue, 5-8 parts of chitosan and 1-1.5 parts of modified 2, 5-furandicarboxylic acid. According to the invention, modified coal gangue and modified 2, 5-furandicarboxylic acid obtained by modifying coal gangue and 2, 5-furandicarboxylic acid are added into an organic fertilizer for granulation, so that the organic fertilizer is prepared. The production method comprises the following steps: mixing the chicken manure, the pig manure, the straw, the rice husk, the mushroom dreg, the traditional Chinese medicine residue, the sawdust, the pomace, the tea leaf extracting solution and the strain A in proportion, and then stacking and fermenting in a fermentation tank; crushing the fermented raw materials to obtain a fermented solid with the mesh number of 120-150 meshes; uniformly mixing the fermented solid, the modified coal gangue, chitosan and the modified 2, 5-furandicarboxylic acid in proportion, and granulating to obtain the organic fertilizer. The produced organic fertilizer is high in nutrient content, high in fertilizer efficiency, free of peculiar smell and odor and capable of improving the soil environment and increasing the crop yield.

Description

Technical Field

[0001] The present invention relates to the technical field of organic fertilizers and microbial fertilizers, and in particular to an organic fertilizer produced by fermenting chicken manure and a production method thereof. Background Art

[0002] Organic fertilizer is made from organic-rich byproducts such as animal manure, plant and animal debris, organic waste, straw, and dead branches, through fermentation and composting processes. Rich in microorganisms, trace elements, and organic matter, organic fertilizers provide nutrients essential for crop growth. They improve soil quality, increase soil organic matter and fertility, and enhance crop quality and yield. Furthermore, the application of organic fertilizers can optimize the soil ecosystem and improve the quality of agricultural products.

[0003] With economic development and accelerated urbanization, urban populations have surged, and so have urban pollutants. Processing urban pollutants into inexpensive, easily transportable organic fertilizers can increase crop yields and value while transforming waste into valuable resources. With increasing emphasis on environmental protection and green agriculture, and demands for higher-quality agricultural products, the market demand for organic fertilizers is also growing. Organic fertilizers can be made from a wide range of raw materials, including human and livestock manure, organic waste, straw, and solid waste from food processing.

[0004] At present, the quality of organic fertilizers on the market is uneven, and most of them are simply composted human and livestock feces and then directly used to fertilize crops. They have a single nutritional component, low fertilizer efficiency, and a peculiar odor, which affects the production and fertilization environment.

[0005] Therefore, the present application provides an organic fertilizer produced by fermenting chicken manure and a production method thereof to solve the problems of single nutrient components, low fertilizer efficiency, and odor of organic fertilizer, improve soil and increase crop yields. Summary of the Invention

[0006] The object of the present invention is to provide an organic fertilizer produced by fermenting chicken manure and a production method thereof, so as to solve the problems of the organic fertilizer proposed in the above background technology, such as single nutrient composition, low fertilizer efficiency and odor.

[0007] In a first aspect, the present invention provides an organic fertilizer produced by fermenting chicken manure, comprising the following components in parts by weight: 60-70 parts of fermentation solids, 12-15 parts of modified coal gangue, 5-8 parts of chitosan, and 1-1.5 parts of modified 2,5-furandicarboxylic acid.

[0008] As a preferred technical solution of the present invention, the fermentation solid is prepared by fermenting the following components in parts by weight: 50-60 parts of chicken manure, 25-30 parts of pig manure, 18-22 parts of straw, 16-18 parts of rice husks, 14-16 parts of mushroom residue, 12-15 parts of Chinese medicine residue, 10-12 parts of sawdust, 7-11 parts of fruit residue, 15-18 parts of tea extract, 2-3 parts of strain A, and 1-2 parts of mixed enzyme.

[0009] As a preferred technical solution of the present invention, the modified coal gangue is prepared by the following method: the coal gangue and perlite are crushed and ground to a particle size of 500-600 mesh respectively; the ground coal gangue and perlite are calcined at 580-620°C for 1.5-2h respectively; the calcined coal gangue, perlite and water are mixed in proportion, phosphate and citric acid are added and soaked for 1.5-2h; the soaked coal gangue and perlite are filtered and dried, strain B is added and mixed evenly, and then 1.2-1.5% of water by mass of the coal gangue is sprayed and mixed for 24-36h to obtain modified coal gangue.

[0010] As a preferred technical solution of the present invention, during the soaking process,

[0011] The mass ratio of the gangue, perlite and water is 6-8:1:10-12;

[0012] The amount of phosphate added is 5-6% of the mass of the coal gangue;

[0013] The phosphate is composed of potassium dihydrogen phosphate and dipotassium hydrogen phosphate in a mass ratio of 1:1.5-2;

[0014] The amount of citric acid added is 3-4% of the mass of the coal gangue;

[0015] The bacterial species B is composed of Bacillus subtilis and phosphate-solubilizing bacteria in a mass ratio of 1:1 to 1.2.

[0016] As a preferred technical solution of the present invention, the modified 2,5-furandicarboxylic acid is prepared by the following method: 2,5-furandicarboxylic acid, lignin, and lipase are uniformly mixed and then treated in a plasma device to obtain modified 2,5-furandicarboxylic acid.

[0017] As a preferred technical solution of the present invention, the mass ratio of 2,5-furandicarboxylic acid to lignin is 12 to 15:2.

[0018] As a preferred technical solution of the present invention, the amount of lipase added is 0.3-0.5% of the mass of 2,5-furandicarboxylic acid.

[0019] As a preferred technical solution of the present invention, the plasma equipment power is 850-900W, the charge density is 880-920 / cm3 , gas flow rate is 1.0~1.1L / min, processing chamber pressure is 80~88kPa, processing chamber temperature is 40~45℃, and processing time is 150~160s.

[0020] As a preferred technical solution of the present invention, the tea extract is prepared by the following method: green tea powder, black tea powder and water are mixed in a mass ratio of 2:1:8-10, soaked and stirred for 30-35 minutes, and then filtered to obtain the tea extract.

[0021] As a preferred technical solution of the present invention, the bacterial species A is composed of yeast, Bacillus subtilis, and photosynthetic bacteria in a mass ratio of 1.5-2:1-1.5:1;

[0022] As a preferred technical solution of the present invention, the mixed enzyme is composed of cellulase and protease in a mass ratio of 1.5 to 2:1.

[0023] In a second aspect, the present invention further provides a method for producing organic fertilizer using chicken manure fermentation, comprising the following steps:

[0024] S1. Mix chicken manure, pig manure, straw, rice husk, mushroom residue, Chinese medicine residue, sawdust, fruit residue, tea extract, and strain A in appropriate proportions and pile them in a fermentation tank for 12 to 14 days. Turn the materials every 12 to 15 hours, and ensure that the center temperature of the piled raw materials is no higher than 50°C.

[0025] S2. The raw materials fermented in S1 are crushed to obtain fermentation solids with a mesh size of 120 to 150 meshes.

[0026] S3. The fermented solids, modified coal gangue, chitosan, and modified 2,5-furandicarboxylic acid are uniformly mixed in proportion and then granulated to obtain an organic fertilizer.

[0027] Compared with the prior art, the present invention has the following beneficial effects:

[0028] 1. The present invention adds modified coal gangue during the preparation process of organic fertilizer produced by chicken manure fermentation. After the coal gangue is modified, its components such as aluminum oxide and iron oxide can better reduce the evaporation of soil moisture, improve the permeability and water and fertilizer retention capacity of the soil, and are beneficial to the growth and development of crops. Modified coal gangue can enhance the biological activity of the soil, improve the nitrogen fixation capacity of the soil, reduce the loss of nitrogen, and thus improve the fertilizer efficiency of organic fertilizer. Calcining coal gangue and perlite under high temperature conditions can destroy the mineral lattice structure, thereby forming a porous structure, increasing adsorption sites, increasing specific surface area, improving the adsorption capacity of heavy metals in the soil, improving soil permeability, adsorbing fertilizer nutrients and slowly releasing them, extending the fertilizer effect period, and thus promoting the growth and development of crops. Coal gangue and perlite are soaked in phosphate and citric acid to remove impurities such as carbonates in the pores of coal gangue and perlite, increase microporosity, improve their nutrient and water adsorption capacity, and reduce toxicity to soil and plants. Coal gangue and perlite are treated with Bacillus subtilis and phosphate-solubilizing bacteria to decompose the organic matter in the coal gangue and perlite, release elements such as phosphorus and potassium, and enhance the fertilizer effect of organic fertilizer.

[0029] 2. The present invention incorporates modified 2,5-furandicarboxylic acid into the organic fertilizer production process. Modified 2,5-furandicarboxylic acid contains a carboxyl group and a furan ring structure, which can participate in the synthesis of humic acid through microbial metabolism, enhancing the stability and fertilizer efficiency of the organic fertilizer. At the same time, the carboxyl group can bind heavy metal ions, reducing the risk of soil pollution. Lignin and 2,5-furandicarboxylic acid work together to form a stable soil conditioner, improving the soil's ability to retain water and fertilizer, and promoting crop growth. After mixing 2,5-furandicarboxylic acid, lignin, and lipase, they are modified in a plasma device, altering their surface structure and chemical properties. This alters their interaction with soil particles, helps form a good soil aggregate structure, improves soil aeration and water permeability, and creates a more favorable environment for crop root growth, thereby providing better nutrients for crops and promoting crop growth.

[0030] 3. The present invention has added chitosan in the organic fertilizer preparation process. Chitosan can induce crops to produce resistance substances such as phenylalanine ammonia lyase and superoxide dismutase, activate plant immune gene expression, reduce the incidence of crop diseases and insect pests, and improve crop yield. Chitosan can promote the proliferation of beneficial microorganisms such as fiber decomposing bacteria and phosphorus-solubilizing and nitrogen-fixing bacteria in the soil, accelerate the release of nitrogen, phosphorus, potassium and trace elements, and the hydroxyl and amino groups in the chitosan molecular structure can be chelated with trace elements such as iron, copper and zinc, and invalid state nutrients are converted into effective state, thereby improving fertilizer utilization rate. In addition, the interpolation of chitosan can promote the bonding granulation molding of each component, enhances the mechanical strength of the particles, delays the fertilizer nutrient release rate, and reduces nutrient loss.

[0031] 4. The present invention adds a tea extract obtained by mixing and stirring green tea powder and black tea powder in proportion to an organic fertilizer fermentation process. The tea extract is rich in nutrients such as nitrogen, phosphorus, and potassium, and also contains active substances such as amino acids, vitamins, and tea polyphenols. Adding it to organic fertilizer can increase the nutrient content of the fertilizer and provide comprehensive nutrition for crop growth. The tea polyphenols, flavonoids, and other bioactive ingredients in the tea extract have antibacterial, insect repellent, and antioxidant effects. These ingredients can be absorbed and transmitted to various parts of the crop through the root system, enhancing the crop's resistance to pests and diseases, thereby increasing crop yield.

[0032] 5. The present invention adds chicken manure, pig manure, straw, rice husk, fungus residue, Chinese medicine residue, sawdust, pomace, and tea extract during the organic fertilizer fermentation process. The mixed fermentation of multiple ingredients improves the quality of organic fertilizer and enhances the nutritional value of organic fertilizer. Fungus residue contains abundant mycelium and unused culture medium components, which can accelerate the decomposition and conversion of organic matter, complement the nutrients in chicken manure, and improve the fertilizer efficiency of organic fertilizer. Straw has a good loose structure. Mixing with chicken manure can increase the porosity of the compost, improve ventilation, provide sufficient oxygen for microorganisms, promote aerobic fermentation, and reduce the odor generated by anaerobic fermentation. Sawdust has a certain adsorption capacity and can absorb harmful gases such as ammonia and hydrogen sulfide produced during the chicken manure fermentation process, reducing the distribution of odor and improving environmental quality. Fruit pomace is rich in organic matter, cellulose, hemicellulose, vitamins, minerals, and active substances such as flavonoids, polyphenols, and organic acids, and has multiple effects such as significant nutrient synergy, soil improvement, ecological protection, and crop yield increase. In the organic fertilizer fermentation process, yeast, Bacillus subtilis, photosynthetic bacteria, cellulase and protease are used to coordinate fermentation to break down macromolecules such as cellulose and protein into small molecules such as glucose, amino acids, and polypeptides that are more easily absorbed and utilized by crops. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a fertilizer production flow chart of the present invention. DETAILED DESCRIPTION

[0034] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0035] Calcining gangue and perlite at high temperatures disrupts the mineral lattice structure, converting SiO2 and Al2O3 into active aluminosilicates, thereby increasing adsorption sites. After high-temperature calcination, organic matter and elements such as silicon, aluminum, and iron are more readily released from gangue and perlite, providing long-lasting nutritional support for plants. The porous structure of gangue and perlite improves soil permeability, adsorbs fertilizer nutrients, and slowly releases them, extending their effectiveness and promoting root development in crops. Calcination increases the specific surface area of gangue, significantly enhancing its adsorption capacity for heavy metals in the soil and reducing their absorption by crops.

[0036] Soaking gangue and perlite in phosphate and citric acid removes impurities such as carbonates from their pores, increasing their microporosity and boosting their nutrient and water absorption capacity. Phosphates also combine with chloride ions in the gangue to form insoluble chloroapatite, reducing chloride ion activity and minimizing toxicity to soil and plants. Phosphates also replenish soil phosphorus, while citric acid promotes phosphorus activation. The two synergistically increase phosphorus availability and reduce phosphorus fixation. Treatment of gangue and perlite with Bacillus subtilis and phosphate-solubilizing bacteria allows the microorganisms to metabolize the organic matter in the gangue and perlite, releasing phosphorus, potassium, and other elements, enhancing the effectiveness of the organic fertilizer. Modifying gangue for use in organic fertilizer production not only alleviates the environmental pollution and land occupation associated with the storage of solid waste such as gangue, but also enables resource utilization of solid waste, aligning with the principles of a circular economy and sustainable development and contributing to the development of an ecological civilization.

[0037] 2,5-Furandicarboxylic acid, lignin, and lipase are mixed and modified in a plasma device. This alters its surface structure and chemical properties, enhancing its interaction with soil particles, helping to form a favorable soil aggregate structure, improving soil aeration and water permeability, and enhancing soil water retention, creating a more favorable environment for crop root growth. The modified 2,5-Furandicarboxylic acid participates in the decomposition and transformation of organic matter in the soil, providing a carbon source for microbial activity and promoting their growth and reproduction. Plasma modification imparts more active sites and a unique surface structure to 2,5-Furandicarboxylic acid, creating a better habitat for microorganisms and promoting the diversity and activity of soil microbial communities. Furthermore, the modified 2,5-Furandicarboxylic acid exhibits certain adsorption properties, capable of absorbing and immobilizing nutrients in the soil, reducing nutrient loss. It can slowly release nutrients over a period of time, providing a continuous nutrient supply for crops, improving fertilizer utilization, and extending the duration of fertilizer action.

[0038] Chitosan can induce crops to produce resistance substances such as phenylalanine ammonia lyase and superoxide dismutase, activate plant immune gene expression, and develop systemic resistance. This can reduce the incidence of viral, fungal, and bacterial diseases, reduce the use of chemical pesticides, and enhance crop tolerance to adverse stresses such as low temperature and drought, thereby increasing crop yields. Chitosan can promote the proliferation of beneficial microorganisms in the soil, such as cellulolytic bacteria and phosphate-solubilizing and nitrogen-fixing bacteria, and accelerate the release of nitrogen, phosphorus, potassium, and trace elements. The hydroxyl and amino groups in the chitosan molecule can chelate with trace elements such as iron, copper, and zinc, converting inactive nutrients into active ones and improving fertilizer utilization. Furthermore, during the granulation process of organic fertilizers, chitosan promotes the bonding of components, enhances the mechanical strength of the granules, slows the release of nutrients from the fertilizer, and reduces nutrient loss.

[0039] Tea extract is rich in nutrients like nitrogen, phosphorus, and potassium, as well as active substances like amino acids, vitamins, and tea polyphenols. Adding it to organic fertilizer can increase the fertilizer's nutrient content and provide comprehensive nutrition for crop growth. The bioactive ingredients in tea extract, such as tea polyphenols and flavonoids, have antibacterial, insect repellent, and antioxidant properties. These ingredients can be absorbed through the root system and transported to various parts of the crop, enhancing crop resistance to pests and diseases, reducing the use of chemical pesticides, and thus increasing crop yields. The polyphenols in tea extract can form complexes with metal ions in organic fertilizer, slowing nutrient fixation and loss. This complexation allows nutrients to be present in a form that is more easily absorbed by plants, improving fertilizer utilization. Furthermore, tea extract can promote the synthesis of endogenous hormones in crops, increase the sugar-acid ratio and aroma content of crop fruits, and thus enhance the quality of agricultural products.

[0040] Mushroom residue is the waste product left after mushroom cultivation. It contains a rich supply of mycelium and unused culture medium components. Mushroom mycelium and spores are themselves beneficial microorganisms that continue to grow and reproduce during the composting process, accelerating the decomposition and conversion of organic matter. They complement the nutrients in chicken manure, increasing the efficiency of organic fertilizers, improving the physical and chemical properties of the soil, and enhancing its ability to retain water and nutrients.

[0041] Straw has a fine, loose structure. Mixing it with chicken manure increases the compost's porosity, improves aeration, and provides ample oxygen for microorganisms, promoting aerobic fermentation and reducing the odors produced by anaerobic fermentation. Chicken manure has a low carbon-nitrogen ratio, while straw has a high carbon-nitrogen ratio. Adding straw to fermentation can adjust the carbon-nitrogen ratio of the fermented fertilizer, promoting microbial growth and decomposition, accelerating the composting process, and improving its efficiency.

[0042] Sawdust is a by-product of wood processing. It has a loose texture and strong water absorption. Sawdust also has a certain adsorption capacity. It can absorb harmful gases such as ammonia and hydrogen sulfide produced during the fermentation of chicken manure, reduce the emission of odor, and improve environmental quality.

[0043] Fruit pomace is a by-product of fruit processing, including peel, pulp, seeds, etc. Fruit pomace is rich in organic matter, cellulose, hemicellulose, lignin, vitamins, minerals, and active substances such as flavonoids, polyphenols, and organic acids. It has multiple functions such as significant nutrient enhancement, soil improvement, ecological protection, and crop yield increase.

[0044] In the organic fertilizer fermentation process, yeast, Bacillus subtilis, photosynthetic bacteria, cellulase and protease are used to coordinate fermentation to break down macromolecules such as cellulose and protein into small molecules such as glucose, amino acids, and polypeptides that are more easily absorbed and utilized by crops.

[0045] like Figure 1 As shown, a method for producing organic fertilizer using chicken manure fermentation includes the following steps: S1. Chicken manure, pig manure, straw, rice husks, mushroom residue, traditional Chinese medicine residue, sawdust, fruit residue, tea extract, and strain A are mixed in proportion and piled in a fermentation tank for 12 to 14 days, turning the materials every 12 to 15 hours. The center temperature of the piled materials is not higher than 50°C. S2. The raw materials fermented in S1 are pulverized to obtain fermentation solids with a mesh size of 120 to 150 mesh. S3. The fermentation solids, modified coal gangue, chitosan, and modified 2,5-furandicarboxylic acid are evenly mixed in proportion and granulated to produce organic fertilizer.

[0046] The raw materials used in the present invention are all commercially available raw materials.

[0047] Example 1:

[0048] An organic fertilizer produced by fermenting chicken manure comprises the following components in parts by weight: 60 parts of fermentation solids, 12 parts of modified coal gangue, 5 parts of chitosan, and 1 part of modified 2,5-furandicarboxylic acid.

[0049] The fermentation solids are prepared by fermenting the following components in parts by weight: 50 parts of chicken manure, 25 parts of pig manure, 18 parts of straw, 16 parts of rice husks, 14 parts of mushroom residues, 12 parts of traditional Chinese medicine residues, 10 parts of sawdust, 7 parts of fruit residues, 15 parts of tea extract, 2 parts of strain A (composed of yeast, Bacillus subtilis, and photosynthetic bacteria in a mass ratio of 1.5:1:1), and 1 part of mixed enzyme (composed of cellulase and protease in a mass ratio of 1.5:1).

[0050] The modified coal gangue is prepared by the following method: the coal gangue and perlite are crushed and ground to a particle size of 500-600 mesh respectively; the ground coal gangue and perlite are calcined at 580°C for 2h respectively; the calcined coal gangue, perlite and water are mixed in a mass ratio of 6:1:10, and phosphate (the phosphate addition amount is 5% of the mass of the coal gangue, and the phosphate is composed of potassium dihydrogen phosphate and dipotassium hydrogen phosphate in a mass ratio of 1:1.5) and citric acid (the addition amount is 3% of the mass of the coal gangue) are added and soaked for 2h; the soaked coal gangue and perlite are filtered and dried, and strain B (Bacillus subtilis and phosphate-solubilizing bacteria in a mass ratio of 1:1) is added and mixed evenly, and then 1.2% of the mass of the coal gangue is sprayed and mixed for 24h to obtain modified coal gangue.

[0051] Modified 2,5-furandicarboxylic acid was prepared by the following method: 2,5-furandicarboxylic acid and lignin were mixed (mass ratio of 12:2), lipase was added (the addition amount was 0.3% of the mass of 2,5-furandicarboxylic acid), the mixture was uniformly mixed, and then treated in a plasma device with a power of 850W and a charge density of 880 / cm 3 , gas flow rate is 1.0 L / min, processing chamber pressure is 80 kPa, processing chamber temperature is 40 ° C, and processing time is 160 s.

[0052] The tea extract was prepared by the following method: green tea powder, black tea powder and water were mixed in a mass ratio of 2:1:8, soaked and stirred for 30 minutes, and then filtered to obtain the tea extract.

[0053] A method for producing organic fertilizer by fermenting chicken manure comprises the following steps:

[0054] S1. Mix chicken manure, pig manure, straw, rice husk, mushroom residue, Chinese medicine residue, sawdust, fruit residue, tea extract, and strain A in appropriate proportions and pile them in a fermentation tank for 12 days. Turn the materials every 12 hours and ensure that the center temperature of the piled materials is no higher than 50°C.

[0055] S2. The raw materials fermented in S1 are crushed to obtain fermentation solids with a mesh size of 120 to 150 meshes.

[0056] S3. The fermented solids, modified coal gangue, chitosan, and modified 2,5-furandicarboxylic acid are uniformly mixed in proportion and then granulated to obtain an organic fertilizer.

[0057] Example 2:

[0058] An organic fertilizer produced by fermenting chicken manure comprises the following components in parts by weight: 70 parts of fermentation solids, 15 parts of modified coal gangue, 8 parts of chitosan, and 1.5 parts of modified 2,5-furandicarboxylic acid.

[0059] The fermentation solids are prepared by fermenting the following components in parts by weight: 60 parts of chicken manure, 30 parts of pig manure, 22 parts of straw, 18 parts of rice husks, 16 parts of mushroom residues, 15 parts of traditional Chinese medicine residues, 12 parts of sawdust, 11 parts of fruit pomace, 18 parts of tea extract, 3 parts of strain A (composed of yeast, Bacillus subtilis, and photosynthetic bacteria in a mass ratio of 2:1.5:1), and 2 parts of mixed enzyme (composed of cellulase and protease in a mass ratio of 2:1).

[0060] The modified gangue is prepared by the following method: the gangue and perlite are crushed and ground to a particle size of 500-600 mesh respectively; the ground gangue and perlite are calcined at 620°C for 1.5 hours respectively; the calcined gangue, perlite and water are mixed in a mass ratio of 8:1:12, and phosphate (the phosphate addition amount is 6% of the mass of the gangue, and the phosphate is composed of potassium dihydrogen phosphate and dipotassium hydrogen phosphate in a mass ratio of 1:2) and citric acid (the addition amount is 4% of the mass of the gangue) are added and soaked for 1.5 hours; the soaked gangue and perlite are filtered and dried, and strain B (Bacillus subtilis and phosphate-solubilizing bacteria in a mass ratio of 1:1.2) is added and mixed evenly, and then 1.5% of the mass of the gangue is sprayed with water and mixed for 36 hours to obtain modified gangue.

[0061] Modified 2,5-furandicarboxylic acid was prepared by the following method: 2,5-furandicarboxylic acid and lignin were mixed (mass ratio of 15:2), lipase was added (the addition amount was 0.5% of the mass of 2,5-furandicarboxylic acid), the mixture was uniformly mixed, and then treated in a plasma device with a power of 900 W and a charge density of 920 / cm 3 , gas flow rate is 1.1 L / min, processing chamber pressure is 88 kPa, processing chamber temperature is 45 ° C, and processing time is 150 s.

[0062] The tea extract was prepared by the following method: green tea powder, black tea powder and water were mixed in a mass ratio of 2:1:10, soaked and stirred for 35 minutes, and then filtered to obtain the tea extract.

[0063] A method for producing organic fertilizer by fermenting chicken manure comprises the following steps:

[0064] S1. Mix chicken manure, pig manure, straw, rice husk, mushroom residue, Chinese medicine residue, sawdust, fruit residue, tea extract, and strain A in appropriate proportions and pile them in a fermentation tank for 14 days. Turn the materials every 15 hours and ensure that the center temperature of the piled materials is no higher than 50°C.

[0065] S2. The raw materials fermented in S1 are crushed to obtain fermentation solids with a mesh size of 120 to 150 meshes.

[0066] S3. The fermented solids, modified coal gangue, chitosan, and modified 2,5-furandicarboxylic acid are uniformly mixed in proportion and then granulated to obtain an organic fertilizer.

[0067] Example 3:

[0068] An organic fertilizer produced by fermenting chicken manure comprises the following components in parts by weight: 65 parts of fermentation solids, 14 parts of modified coal gangue, 6 parts of chitosan, and 1.2 parts of modified 2,5-furandicarboxylic acid.

[0069] The fermentation solids are prepared by fermenting the following components in parts by weight: 56 parts of chicken manure, 28 parts of pig manure, 20 parts of straw, 17 parts of rice husks, 15 parts of mushroom residues, 13 parts of traditional Chinese medicine residues, 11 parts of sawdust, 10 parts of fruit pomace, 16 parts of tea extract, 2.5 parts of strain A (composed of yeast, Bacillus subtilis, and photosynthetic bacteria in a mass ratio of 2:1:1), and 1.5 parts of mixed enzyme (composed of cellulase and protease in a mass ratio of 2:1).

[0070] The modified gangue is prepared by the following method: the gangue and perlite are crushed and ground to a particle size of 500-600 mesh respectively; the ground gangue and perlite are calcined at 600°C for 2h respectively; the calcined gangue, perlite and water are mixed in a mass ratio of 6:1:12, phosphate (the phosphate addition amount is 5.5% of the gangue mass, and the phosphate is composed of potassium dihydrogen phosphate and dipotassium hydrogen phosphate in a mass ratio of 1.2-2) and citric acid (the addition amount is 3.5% of the gangue mass) are added and soaked for 2h; the soaked gangue and perlite are filtered and dried, and strain B (Bacillus subtilis and phosphate-solubilizing bacteria in a mass ratio of 1:1.2) is added and mixed evenly, and then 1.3% of the mass of the gangue is sprayed on the mixture and mixed for 30h to obtain the modified gangue.

[0071] Modified 2,5-furandicarboxylic acid was prepared by the following method: 2,5-furandicarboxylic acid and lignin were mixed (mass ratio of 14:2), lipase was added (the addition amount was 0.4% of the mass of 2,5-furandicarboxylic acid), the mixture was uniformly mixed, and then treated in a plasma device with a power of 880W and a charge density of 900 / cm 3 , gas flow rate is 1.0 L / min, processing chamber pressure is 85 kPa, processing chamber temperature is 42 ° C, and processing time is 155 s.

[0072] The tea extract was prepared by the following method: green tea powder, black tea powder and water were mixed in a mass ratio of 2:1:10, soaked and stirred for 30 minutes, and then filtered to obtain the tea extract.

[0073] A method for producing organic fertilizer by fermenting chicken manure comprises the following steps:

[0074] S1. Mix chicken manure, pig manure, straw, rice husk, mushroom residue, Chinese medicine residue, sawdust, fruit residue, tea extract, and strain A in appropriate proportions and pile them in a fermentation tank for 13 days. Turn the materials every 12 hours and ensure that the center temperature of the piled materials is no higher than 50°C.

[0075] S2. The raw materials fermented in S1 are crushed to obtain fermentation solids with a mesh size of 120 to 150 meshes.

[0076] S3. The fermented solids, modified coal gangue, chitosan, and modified 2,5-furandicarboxylic acid are uniformly mixed in proportion and then granulated to obtain an organic fertilizer.

[0077] Comparative Example 1:

[0078] The difference from the first embodiment is that the modified coal gangue is removed.

[0079] Comparative Example 2:

[0080] The difference from the first embodiment is that the coal gangue is directly added without being modified.

[0081] Comparative Example 3:

[0082] The difference from Example 1 is that the modified 2,5-furandicarboxylic acid is removed.

[0083] Comparative Example 4:

[0084] The difference from Example 1 is that 2,5-furandicarboxylic acid is directly added without modification.

[0085] Comparative Example 5:

[0086] The difference from Example 1 is that chitosan is removed.

[0087] Comparative Example 6:

[0088] The difference from the first embodiment is that the tea extract is removed.

[0089] The organic fertilizers produced in Examples 1, 2, 3 and Comparative Examples 1, 2, 3, 4, 5 and 6 were subjected to performance tests.

[0090] The organic fertilizers produced in Examples 1, 2, 3 and Comparative Examples 1, 2, 3, 4, 5 and 6 were used to determine the contents of nitrogen, phosphorus, potassium, magnesium and iron in the organic fertilizers by liquid chromatography. The organic matter content of the organic fertilizers was determined using NY / T 2876-2015 "Determination of Organic Matter Fractionation in Fertilizers and Soil Conditioners". The results are shown in Table 1.

[0091] Table 1: Nutritional content of organic fertilizer

[0092]

[0093] As shown in Table 1, the organic fertilizers produced in Examples 1, 2 and 3 have higher contents of nitrogen, phosphorus, potassium, magnesium, iron and organic matter, while the organic fertilizers produced in Comparative Examples 1, 2, 3, 4, 5 and 6 have lower contents of nitrogen, phosphorus, potassium, magnesium, iron and organic matter.

[0094] Modified coal gangue can improve soil permeability and water and fertilizer retention, enhance soil biological activity, and improve soil nitrogen fixation, which is beneficial to the growth and development of crops. Modified 2,5-furandicarboxylic acid contains carboxyl and furan ring structures, which can participate in the synthesis of humic acid through microbial metabolism, enhancing the stability and efficiency of organic fertilizers. Tea extract is rich in nutrients such as nitrogen, phosphorus, and potassium, as well as active substances such as amino acids, vitamins, and tea polyphenols, which can increase the nutrient content of fertilizers.

[0095] At the wheat experimental base, 7 to 10 days after wheat emerged from the soil, the organic fertilizer produced in Examples 1, 2, and 3 and Comparative Examples 1, 2, 3, 4, 5, and 6 was applied to the wheat at a rate of 55 to 60 kg per mu of wheat. Three parallel experiments were conducted for each set of Examples and Comparative Examples, each using one mu of land. The wheat yield after harvest and the lead and cadmium content in the wheat were measured. The control group was treated with commercially available organic fertilizer. The lead and cadmium content in wheat was detected using GB 5009.12-2023 "Determination of Lead in Foods" and GB 5009.15-2023 "Determination of Cadmium in Foods". The results are shown in Table 2.

[0096] Table 2: Wheat yield and heavy metal content

[0097]

[0098] As shown in Table 2, the organic fertilizer produced by Example 1, 2, and 3 is fertilized on wheat, and the per mu yield of wheat is higher, and the lead and cadmium heavy metal contents in wheat are lower. The organic fertilizer produced by Comparative Examples 1, 2, 3, 4, 5, and 6 and the organic fertilizer of the control group are fertilized on wheat, and the yield of wheat is lower, while the organic fertilizer produced by Comparative Examples 1, 2, 3, and 4 and the organic fertilizer of the control group are fertilized on wheat, and the lead and cadmium contents of wheat are higher.

[0099] Modified coal gangue can enhance soil biological activity, improve nitrogen fixation, and reduce nitrogen loss, thereby increasing the effectiveness of organic fertilizers. Modified coal gangue can also enhance the adsorption of heavy metals in the soil, improve soil aeration, absorb fertilizer nutrients, and slowly release them, extending the effective period of the fertilizer, thereby promoting crop growth and development. Modified 2,5-furandicarboxylic acid contains carboxyl groups and furan ring structures, which can participate in the synthesis of humic acid through microbial metabolism, enhancing the stability and effectiveness of organic fertilizers. The carboxyl groups can also bind heavy metal ions, reducing the content of heavy metals such as lead and cadmium in crops and increasing crop yields. Chitosan can induce crops to produce resistance substances such as phenylalanine ammonia lyase and superoxide dismutase, activating plant immune gene expression, reducing the incidence of crop diseases and pests, and increasing crop yields. The bioactive ingredients in tea extract, such as tea polyphenols and flavonoids, have antibacterial, insect repellent and antioxidant effects. These ingredients can be absorbed through the root system and transmitted to various parts of the crop, thereby enhancing the crop's resistance to diseases and pests, thereby increasing crop yields.

[0100] In summary, the organic fertilizer produced by the present invention has high nutritional content, high fertilizer efficiency, no peculiar smell, and can improve the soil environment and increase crop yields.

[0101] The above are only specific embodiments of the present invention, but the technical features of the present invention are not limited thereto. Any simple changes, equivalent substitutions, or modifications based on the present invention to solve substantially the same technical problems and achieve substantially the same technical effects are all included in the scope of protection of the present invention.

Claims

1. An organic fertilizer produced by fermenting chicken manure, characterized in that: The invention comprises the following components in parts by weight: 60-70 parts of fermentation solid matter, 12-15 parts of modified coal gangue, 5-8 parts of chitosan, and 1-1.5 parts of modified 2,5-furandicarboxylic acid; The fermentation solid material is prepared by fermenting the following components in parts by weight: 50-60 parts of chicken manure, 25-30 parts of pig manure, 18-22 parts of straw, 16-18 parts of rice husks, 14-16 parts of mushroom residues, 12-15 parts of traditional Chinese medicine residues, 10-12 parts of sawdust, 7-11 parts of fruit residues, 15-18 parts of tea extract, 2-3 parts of bacterial strain A, and 1-2 parts of mixed enzyme.

2. The organic fertilizer produced by fermenting chicken manure according to claim 1, wherein The modified gangue is prepared by the following method: the gangue and perlite are crushed and ground to a particle size of 500-600 mesh respectively; the ground gangue and perlite are calcined at 580-620° C. for 1.5-2 hours respectively; the calcined gangue, perlite and water are mixed in proportion, phosphate and citric acid are added and soaked for 1.5-2 hours; the soaked gangue and perlite are filtered and dried, strain B is added and mixed evenly, and then 1.2-1.5% of water by mass of the gangue is sprayed and mixed for 24-36 hours to obtain the modified gangue.

3. A kind of organic fertilizer utilizing chicken manure fermentation production according to claim 2, characterized in that, During the soaking process, The mass ratio of the gangue, perlite and water is 6-8:1:10-12; The amount of phosphate added is 5-6% of the mass of the coal gangue; The phosphate is composed of potassium dihydrogen phosphate and dipotassium hydrogen phosphate in a mass ratio of 1:1.5-2; The amount of citric acid added is 3-4% of the mass of the coal gangue; The bacterial species B is composed of Bacillus subtilis and phosphate-solubilizing bacteria in a mass ratio of 1:1 to 1.

2.

4. The organic fertilizer produced by fermenting chicken manure according to claim 1, wherein The modified 2,5-furandicarboxylic acid is prepared by the following method: 2,5-furandicarboxylic acid, lignin, and lipase are uniformly mixed and then treated in a plasma device to obtain the modified 2,5-furandicarboxylic acid.

5. A kind of organic fertilizer produced by utilizing chicken manure fermentation according to claim 4, characterized in that, The mass ratio of the 2,5-furandicarboxylic acid to lignin is 12 to 15:

2.

6. A kind of organic fertilizer produced by fermentation of chicken manure according to claim 4, characterized in that, The added amount of the lipase is 0.3-0.5% of the mass of 2,5-furandicarboxylic acid.

7. The organic fertilizer produced by fermenting chicken manure according to claim 4, wherein The plasma equipment power is 850-900W, and the charge density is 880-920 / cm 3 , gas flow rate is 1.0~1.1L / min, processing chamber pressure is 80~88kPa, processing chamber temperature is 40~45℃, and processing time is 150~160s.

8. The organic fertilizer produced by fermenting chicken manure according to claim 1, wherein The tea extract is prepared by the following method: green tea powder, black tea powder and water are mixed in a mass ratio of 2:1:8-10, immersed and stirred for 30-35 minutes, and then filtered to obtain the tea extract.

9. The organic fertilizer produced by fermenting chicken manure according to claim 1, wherein The bacterial species A is composed of yeast, Bacillus subtilis, and photosynthetic bacteria in a mass ratio of 1.5-2:1-1.5:1; The mixed enzyme is composed of cellulase and protease in a mass ratio of 1.5 to 2:

1.

10. The method for producing organic fertilizer by fermenting chicken manure according to any one of claims 1 to 9, comprising the following steps: S1. Mix chicken manure, pig manure, straw, rice husk, fungus residue, Chinese medicine residue, sawdust, pomace, tea extract, strain A in proportion and pile them in the fermentation tank for 12 to 14 days, turning the material every 12 to 15 hours, and the center temperature of the piled raw materials is not higher than 50 ° C; S2. The raw material after fermentation in S1 was crushed to obtain a fermentation solid with a mesh size of 120 to 150 mesh; S3. The fermented solids, modified coal gangue, chitosan, and modified 2,5-furandicarboxylic acid are uniformly mixed in proportion and then granulated to obtain an organic fertilizer.

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