Organic-inorganic compound fertilizer and production process thereof

Abstract

The invention relates to the technical field of magnesium alloys, in particular to an organic-inorganic compound fertilizer and a production process thereof. The organic-inorganic compound fertilizer comprises the following raw materials in parts by weight: 200-300 parts of a base material, 60-80 parts of composted chicken manure, 40-60 parts of soybean meal, 40-60 parts of urea, 30-40 parts of weathered coal humic acid, 30-40 parts of diammonium phosphate, 20-30 parts of potassium sulfate, 20-30 parts of attapulgite, 10-20 parts of magnesium sulfate heptahydrate, 2-4 parts of chelated zinc and 1-3 parts of borax. In the invention, when the fertilizer is prepared, the base material coats the granules obtained by granulation, so that the base material coats the surfaces of the granules to form fertilizer granules, and after the fertilizer is applied and used, the coating layer is relatively similar to the material of soil and can be effectively compatible with the soil, thereby reducing the rejection reaction of plant root systems to foreign substances; meanwhile, the coating layer can reduce the release speed of the fertilizer, delay the supplement process of nutrients and improve the use effect of the fertilizer.

Description

Technical Field

[0001] The present invention relates to the technical field of magnesium alloys, in particular to an organic-inorganic compound fertilizer and a production process thereof. Background Art

[0002] Organic-inorganic compound fertilizer is a compound fertilizer made by scientifically combining organic matter and inorganic fertilizer. It combines the advantages of organic fertilizer in improving soil, improving soil fertility, and enhancing crop resistance, with the characteristics of inorganic fertilizer in high nutrient content and fast fertilizer effect. It can meet the nutrient needs of crops at different growth stages.

[0003] In the prior art, after organic-inorganic compound fertilizers are applied, moisture in the soil causes the fertilizer to dissolve rapidly, resulting in rapid nutrient loss from the fertilizer. This prevents plant roots from absorbing sufficient nutrients, thus affecting plant growth. Based on this, the present invention provides an organic-inorganic compound fertilizer and a production process thereof. Summary of the Invention

[0004] The purpose of the present invention is to provide an organic-inorganic compound fertilizer and a production process thereof. The fertilizer prepared by the present invention not only has good yield performance, but also has excellent plant height data, effectively improving the performance of the fertilizer.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] In a first aspect, the present invention provides an organic-inorganic compound fertilizer, comprising the following raw materials in parts by weight: 200-300 parts of base material, 60-80 parts of decomposed chicken manure, 40-60 parts of soybean meal, 40-60 parts of urea, 30-40 parts of weathered coal humic acid, 30-40 parts of diammonium phosphate, 20-30 parts of potassium sulfate, 20-30 parts of attapulgite, 10-20 parts of magnesium sulfate heptahydrate, 2-4 parts of chelated zinc, and 1-3 parts of borax;

[0007] The base material is prepared by the following method:

[0008] S1: Powder preparation, wherein the raw materials of the powder include bentonite, hydrogen chloride solution, water, sodium carbonate, and mixed material;

[0009] S2: preparing an additive, wherein the raw materials of the additive include apple wood, cellulase, Aspergillus usami and Phanerochaete chrysosporium, and the mass of the additive is 35-40% of the mass of the powder;

[0010] S3: Mixing treatment: the powder material and the additive are mixed to prepare the base material.

[0011] Furthermore, the method for preparing the powder is as follows: bentonite is crushed to a particle size of 100 to 200 meshes, and then sent to an oven for drying. The oven is set at 100 to 110°C for drying for 30 to 40 minutes to obtain a coarse material, the coarse material and hydrogen chloride solution are added to a reactor, the reactor is set at a temperature of 60 to 80°C, the stirring speed is 200 to 300 r / min, and the constant temperature stirring is performed for 2 to 3 hours. The obtained product is filtered, washed with water until neutral, and sent to an oven, and the oven is set at 50 The mixture was dried at 55-60°C for 3-4 hours, and the obtained product was added to a mixer. Water and sodium carbonate were added to the mixer. The mixer was set at 400-500 r / min and stirred for 40-50 minutes to obtain a slurry. The slurry and the mixture were added to a reactor. The reactor was set at a temperature of 55-65°C and a stirring speed of 200-300 r / min. The mixture was stirred at a constant temperature for 2-3 hours. The obtained product was rinsed with deionized water until neutral and sent to an oven. The oven was set at 60-70°C and dried for 5-6 hours to obtain a powder.

[0012] Furthermore, the mass of the hydrogen chloride solution is 2 to 3 times the mass of the bentonite, the mass concentration of the hydrogen chloride solution is 4 to 6%, the mass ratio of water to sodium carbonate is 1:(0.2 to 0.3), the mass of water is 10 to 14% of the mass of the bentonite, and the mass of the mixture is 25 to 30% of the mass of the slurry.

[0013] Furthermore, the mixture is prepared by the following method: cetyltrimethylammonium bromide and warm water are added to a mixer, the mixer is set to 60-80 r / min and stirred for 4-6 minutes, then nitrogen, phosphorus and potassium fertilizers are added, and the mixer is set to 200-300 r / min and stirred for 20-30 minutes to prepare the mixture.

[0014] Furthermore, the mass ratio of hexadecyltrimethylammonium bromide to warm water is 1:(2-3), the temperature of the warm water is 60-80°C, the mass of the nitrogen, phosphorus and potassium fertilizer is 1-1.5 times the mass of the hexadecyltrimethylammonium bromide, the nitrogen, phosphorus and potassium fertilizer is ground before being added, and the grinding particle size is 300-400 meshes. The mass ratio of nitrogen, phosphorus and potassium in the nitrogen, phosphorus and potassium fertilizer is 1:(0.4-0.6):1.

[0015] Furthermore, the method for preparing the additive is as follows: apple wood is cut and then sent to a hammer mill for crushing, the crushed particle size is ≤4mm, and apple wood particles are obtained, the apple wood particles and water 4 to 6 times their mass are added to a container, cellulase is added to the container, and the particles are soaked for 2 to 4 days, and stirred every 2 to 4 hours during the soaking process, the soaked product is sent to a pulper for pulping, and the pulped product is inoculated with Aspergillus usami and Phanerochaete chrysosporium. After the inoculation is completed, the product is fermented for 7 to 9 days at a temperature of 32 to 34°C and a humidity of 70 to 72% to obtain the additive.

[0016] Furthermore, the mass of the cellulase is 0.5-0.7% of the mass of water, and the total inoculation amount of Aspergillus usami and Phanerochaete chrysosporium is 0.6-0.8%.

[0017] Furthermore, the mass ratio of Aspergillus usami and Phanerochaete chrysosporium is 1:2.

[0018] Furthermore, the mixing method is as follows: the powder and the additive are added into a mixer, 25-30% of the water by mass of the powder is added into the mixer, the mixer is set at 100-140 r / min and stirred for 10-20 minutes, and the mixing process is completed to obtain the base material.

[0019] In a second aspect, the present invention further provides a production process for an organic-inorganic compound fertilizer, comprising the following steps:

[0020] Step 1: Weigh decomposed chicken manure, soybean meal, urea, weathered coal humic acid, diammonium phosphate, potassium sulfate, attapulgite, magnesium sulfate heptahydrate, chelated zinc, and borax as needed and add them to a mixer. Set the mixer to 400-600 r / min and stir for 20-30 minutes. Add the resulting product to a disc granulator for granulation to obtain granular material.

[0021] Step 2: Add the granular material and the base material into a mixer, set the mixer at 200-300 r / min and stir for 40-50 minutes, add the resulting product into an oven, set the oven at 60-70° C. and dry for 40-60 minutes to obtain the fertilizer.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] 1. In the present invention, in the preparation process of organic-inorganic compound fertilizer, the base material is coordinated with other multiple organic and inorganic components for synergistic preparation, wherein the base material adopts bentonite as the main material. During the preparation of the fertilizer, the base material is coated on the granular material obtained by granulation, so that the base material is coated on the surface of the granular material to form fertilizer particles. After the fertilizer is applied and used, the coating layer is similar in material to the soil and can be effectively compatible with the soil, reducing the rejection reaction of plant roots to foreign substances. At the same time, the coating layer can reduce the release rate of the fertilizer, delay the nutrient replenishment process, and improve the use effect of the fertilizer.

[0024] 2. In the present invention, by treating bentonite during powder preparation, the bentonite can absorb nutrients in nitrogen, phosphorus and potassium fertilizers after treatment, so that the coating layer can also release some nutrients after contact with the soil, activating the root activity of plants. The cationic quaternary ammonium salt group of hexadecyltrimethylammonium bromide can replace inorganic cations between bentonite layers through electrostatic adsorption, thereby enhancing the adsorption effect between fertilizer and soil, reducing the loss of fertilizer in the soil, and thus improving the use effect of the fertilizer.

[0025] 3. In the present invention, by using additives in fertilizer preparation, apple wood is crushed and ground into pulp and fermented after enzymatic hydrolysis, thereby forming an additive material with rich pore structure, which can improve the aeration of the soil, continuously supply carbon sources to the soil, and improve the soil's absorption efficiency of fertilizer nutrients. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 The present invention provides a flow chart of an organic-inorganic compound fertilizer and its production process. DETAILED DESCRIPTION

[0027] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described 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.

[0028] It should be noted that the raw materials used in the following examples are all commercially available raw materials.

[0029] Example 1:

[0030] Raw materials: 200 parts base material, 60 parts decomposed chicken manure, 40 parts soybean meal, 40 parts urea, 30 parts weathered coal humic acid, 30 parts diammonium phosphate, 20 parts potassium sulfate, 20 parts attapulgite, 10 parts magnesium sulfate heptahydrate, 2 parts chelated zinc, 1 part borax;

[0031] Base material preparation:

[0032] S1: powder preparation, the raw materials of the powder include bentonite, hydrogen chloride solution, water, sodium carbonate, and mixed materials;

[0033] The method for preparing the powder is as follows: the bentonite is crushed to a particle size of 100 mesh, and then sent to an oven for drying. The oven is set at 100°C for drying for 30 minutes to obtain a coarse material. The coarse material and hydrogen chloride solution are added to a reactor. The reactor is set at 60°C and the stirring speed is 200r / min. The constant temperature stirring is carried out for 2 hours. The obtained product is filtered and then washed with water until neutral. It is sent to an oven and dried at 50°C for 3 hours. The obtained product is added to a mixer. Water and sodium carbonate are added to the mixer. The mixer is set at 400r / m in stirring for 40 minutes to obtain a slurry, the slurry and the mixture are added to a reactor, the reactor temperature is set at 55°C, the stirring speed is 200r / min, and the constant temperature stirring is carried out for 2 hours. The obtained product is rinsed with deionized water until neutral, and sent to an oven, and the oven is set at 60°C for drying for 5 hours to obtain a powder, wherein the mass of the hydrogen chloride solution is twice the mass of the bentonite, the mass concentration of the hydrogen chloride solution is 4%, the mass ratio of water to sodium carbonate is 1:0.2, the mass of water is 10% of the mass of the bentonite, and the mass of the mixture is 25% of the mass of the slurry;

[0034] A mixture is prepared by the following method: cetyltrimethylammonium bromide and warm water are added to a mixer, the mixer is set to 60 r / min and stirred for 4 minutes, and then nitrogen, phosphorus and potassium fertilizers are added, and the mixer is set to 200 r / min and stirred for 20 minutes to prepare a mixture, wherein the mass ratio of cetyltrimethylammonium bromide to warm water is 1:2, the temperature of the warm water is 60°C, the mass of the nitrogen, phosphorus and potassium fertilizers is 1 times the mass of the cetyltrimethylammonium bromide, the nitrogen, phosphorus and potassium fertilizers are ground before being added, and the ground particle size is 300 mesh. The mass ratio of nitrogen, phosphorus and potassium in the nitrogen, phosphorus and potassium fertilizers is 1:0.4:1;

[0035] S2: Preparation of additives, the raw materials of the additives include apple wood, cellulase, Aspergillus usamii, and Phanerochaete chrysosporium, and the mass of the additives is 35% of the mass of the powder;

[0036] The method for preparing the additive is as follows: apple wood is cut and then sent to a hammer mill for pulverization, the pulverized particle size is ≤4 mm, and apple wood particles are obtained; water 4 times the mass of the apple wood particles and the apple wood particles is added to a container; cellulase is added to the container, and the apple wood particles are soaked for 2 days, and stirred every 2 hours during the soaking process; the soaked product is sent to a refiner for refining; Aspergillus Usami and Phanerochaete Chrysosporium are inoculated into the refining product; after the inoculation is completed, the product is fermented for 7 days under the conditions of temperature 32°C and humidity 70% to prepare the additive, wherein the mass of the cellulase is 0.5% of the mass of the water, the total inoculation amount of Aspergillus Usami and Phanerochaete Chrysosporium is 0.6%, and the mass ratio of Aspergillus Usami and Phanerochaete Chrysosporium is 1:2;

[0037] S3: Mixing process: mixing the powder and the additive to obtain the base material;

[0038] The mixing method is as follows: the powder and the additive are added into a mixer, 25% of the weight of the powder is added into the mixer, the mixer is set at 100 r / min and stirred for 10 minutes, and the mixing process is completed to obtain the base material;

[0039] Fertilizer preparation:

[0040] Step 1: Weigh decomposed chicken manure, soybean meal, urea, weathered coal humic acid, diammonium phosphate, potassium sulfate, attapulgite, magnesium sulfate heptahydrate, chelated zinc, and borax as needed and add them to a mixer. Set the mixer to 400 r / min and stir for 20 minutes. Add the resulting product to a disc granulator for granulation to obtain granular material.

[0041] Step 2: Add the granular material and the base material into a mixer, set the mixer at 200 r / min and stir for 40 minutes, add the resulting product into an oven, set the oven at 60° C. and dry for 40 minutes to obtain a fertilizer.

[0042] Example 2:

[0043] Raw materials: 250 parts base material, 70 parts decomposed chicken manure, 50 parts soybean meal, 50 parts urea, 35 parts weathered coal humic acid, 35 parts diammonium phosphate, 25 parts potassium sulfate, 25 parts attapulgite, 15 parts magnesium sulfate heptahydrate, 3 parts chelated zinc, 2 parts borax;

[0044] Base material preparation:

[0045] S1: powder preparation, the raw materials of the powder include bentonite, hydrogen chloride solution, water, sodium carbonate, and mixed materials;

[0046] The method for preparing the powder is as follows: the bentonite is crushed to a particle size of 150 mesh, and then sent to an oven for drying. The oven is set at 105°C for drying for 35 minutes to obtain a coarse material. The coarse material and hydrogen chloride solution are added to a reactor. The reactor is set at 70°C and the stirring speed is 250r / min. The constant temperature stirring is carried out for 2.5 hours. The obtained product is filtered and then washed with water until neutral. It is sent to an oven and dried at 55°C for 3.5 hours. The obtained product is added to a mixer. Water and sodium carbonate are added to the mixer. The mixer is set at 450r / min. n Stir for 45 minutes to obtain a slurry, and add the slurry and the mixture into a reactor. The reactor temperature is set at 60°C, the stirring speed is 250r / min, and the constant temperature stirring is carried out for 2.5 hours. The obtained product is rinsed with deionized water until neutral, and sent to an oven. The oven is set at 65°C and dried for 5.5 hours to obtain a powder, wherein the mass of the hydrogen chloride solution is 2.5 times the mass of the bentonite, the mass concentration of the hydrogen chloride solution is 5%, the mass ratio of water to sodium carbonate is 1:0.25, the mass of water is 12% of the mass of the bentonite, and the mass of the mixture is 27% of the mass of the slurry;

[0047] A mixture is prepared by the following method: cetyltrimethylammonium bromide and warm water are added to a mixer, the mixer is set to 70 r / min and the mixture is stirred for 5 minutes at a temperature of 70 r / min, and then nitrogen, phosphorus and potassium fertilizers are added, and the mixer is set to 250 r / min and stirred for 25 minutes to prepare a mixture, wherein the mass ratio of cetyltrimethylammonium bromide to warm water is 1:2.5, the temperature of the warm water is 70°C, the mass of the nitrogen, phosphorus and potassium fertilizers is 1.2 times the mass of cetyltrimethylammonium bromide, the nitrogen, phosphorus and potassium fertilizers are ground before being added, and the ground particle size is 350 mesh, and the mass ratio of nitrogen, phosphorus and potassium in the nitrogen, phosphorus and potassium fertilizers is 1:0.5:1;

[0048] S2: Preparation of additives, the raw materials of the additives include apple wood, cellulase, Aspergillus usami and Phanerochaete chrysosporium, and the mass of the additives is 37% of the mass of the powder;

[0049] The method for preparing the additive is as follows: apple wood is cut and then sent to a hammer mill for pulverization, the pulverized particle size is ≤4 mm, and apple wood particles are obtained; water 5 times the mass of the apple wood particles and the apple wood particles is added to a container; cellulase is added to the container, and the apple wood particles are soaked for 3 days, and stirred every 3 hours during the soaking process; the soaked product is sent to a refiner for refining; Aspergillus Usami and Phanerochaete Chrysosporium are inoculated into the refining product; after the inoculation is completed, the product is fermented for 8 days under the conditions of temperature 33°C and humidity 71% to prepare the additive, wherein the mass of the cellulase is 0.6% of the mass of the water, the total inoculation amount of Aspergillus Usami and Phanerochaete Chrysosporium is 0.7%, and the mass ratio of Aspergillus Usami and Phanerochaete Chrysosporium is 1:2;

[0050] S3: Mixing process: mixing the powder and the additive to obtain the base material;

[0051] The mixing method is as follows: the powder and the additive are added into a mixer, 27% water by weight of the powder is added into the mixer, the mixer is set at 120 r / min and stirred for 15 minutes, and the mixing process is completed to obtain the base material;

[0052] Fertilizer preparation:

[0053] Step 1: Weigh decomposed chicken manure, soybean meal, urea, weathered coal humic acid, diammonium phosphate, potassium sulfate, attapulgite, magnesium sulfate heptahydrate, chelated zinc, and borax as needed and add them to a mixer. Set the mixer to 500 r / min and stir for 25 minutes. Add the resulting product to a disc granulator for granulation to obtain granular material.

[0054] Step 2: Add the granular material and the base material into a mixer, set the mixer at 250 r / min and stir for 45 minutes, add the resulting product into an oven, set the oven at 65° C. and dry for 50 minutes to obtain the fertilizer.

[0055] Example 3:

[0056] Raw materials: 300 parts base material, 80 parts decomposed chicken manure, 60 parts soybean meal, 60 parts urea, 40 parts weathered coal humic acid, 40 parts diammonium phosphate, 30 parts potassium sulfate, 30 parts attapulgite, 20 parts magnesium sulfate heptahydrate, 4 parts chelated zinc, 3 parts borax;

[0057] Base material preparation:

[0058] S1: powder preparation, the raw materials of the powder include bentonite, hydrogen chloride solution, water, sodium carbonate, and mixed materials;

[0059] The method for preparing the powder is as follows: the bentonite is crushed to a particle size of 200 mesh, and then sent to an oven for drying. The oven is set at 110°C for drying for 40 minutes to obtain a coarse material. The coarse material and hydrogen chloride solution are added to a reactor. The reactor is set at 80°C and the stirring speed is 300r / min. The constant temperature stirring is carried out for 3 hours. The obtained product is filtered and then washed with water until neutral. It is sent to an oven and dried at 60°C for 4 hours. The obtained product is added to a mixer. Water and sodium carbonate are added to the mixer. The mixer is set at 500r / m in stirring for 50 minutes to obtain a slurry, the slurry and the mixture are added to a reactor, the reactor temperature is set at 65°C, the stirring speed is 300r / min, and the constant temperature stirring is carried out for 3 hours. The obtained product is rinsed with deionized water until neutral, and sent to an oven, and the oven is set at 70°C for drying for 6 hours to obtain a powder, wherein the mass of the hydrogen chloride solution is 3 times the mass of the bentonite, the mass concentration of the hydrogen chloride solution is 6%, the mass ratio of water to sodium carbonate is 1:0.3, the mass of water is 14% of the mass of the bentonite, and the mass of the mixture is 30% of the mass of the slurry;

[0060] A mixture is prepared by the following method: cetyltrimethylammonium bromide and warm water are added to a mixer, the mixer is set to 80 r / min and stirred for 6 minutes, and then nitrogen, phosphorus and potassium fertilizers are added, and the mixer is set to 300 r / min and stirred for 30 minutes to prepare a mixture, wherein the mass ratio of cetyltrimethylammonium bromide to warm water is 1:3, the temperature of the warm water is 80°C, the mass of the nitrogen, phosphorus and potassium fertilizers is 1.5 times the mass of the cetyltrimethylammonium bromide, the nitrogen, phosphorus and potassium fertilizers are ground before being added, and the ground particle size is 400 mesh. The mass ratio of nitrogen, phosphorus and potassium in the nitrogen, phosphorus and potassium fertilizers is 1:0.6:1;

[0061] S2: Preparation of additives, the raw materials of the additives include apple wood, cellulase, Aspergillus usami and Phanerochaete chrysosporium, and the mass of the additives is 40% of the mass of the powder;

[0062] The method for preparing the additive comprises the following steps: cutting apple wood, and then feeding it into a hammer mill for pulverization, wherein the pulverized particle size is ≤4 mm to obtain apple wood particles, adding water 6 times the mass of the apple wood particles and the weight of the apple wood particles into a container, adding cellulase into the container, soaking and placing the apple wood particles for 4 days, stirring the particles every 4 hours during the soaking process, feeding the soaked product into a refiner for refining, inoculating the refined product with Aspergillus Usami and Phanerochaete chrysosporium, and after the inoculation is completed, fermenting the product at a temperature of 34° C. and a humidity of 72% for 9 days to obtain the additive, wherein the mass of the cellulase is 0.7% of the mass of the water, the total inoculation amount of Aspergillus Usami and Phanerochaete chrysosporium is 0.8%, and the mass ratio of Aspergillus Usami and Phanerochaete chrysosporium is 1:2;

[0063] S3: Mixing process: mixing the powder and the additive to obtain the base material;

[0064] The mixing method is as follows: the powder and the additive are added into a mixer, 30% of the weight of the powder is added into the mixer, the mixer is set at 140 r / min and stirred for 20 minutes, and the mixing process is completed to obtain the base material;

[0065] Fertilizer preparation:

[0066] Step 1: Weigh decomposed chicken manure, soybean meal, urea, weathered coal humic acid, diammonium phosphate, potassium sulfate, attapulgite, magnesium sulfate heptahydrate, chelated zinc, and borax as needed and add them to a mixer. Set the mixer to 600 r / min and stir for 30 minutes. Add the resulting product to a disc granulator for granulation to obtain granular material.

[0067] Step 2: Add the granular material and the base material into a mixer, set the mixer at 300 r / min and stir for 50 minutes, add the resulting product into an oven, set the oven at 70° C. and dry for 60 minutes to obtain a fertilizer.

[0068] Comparative Example 1: The difference between this comparative example and Example 1 is that no fermentation treatment is performed during the preparation of the additive in this comparative example.

[0069] Comparative Example 2: The difference between this comparative example and Example 1 is that in this comparative example, all raw materials are mixed and then granulated.

[0070] Comparative Example 3: The difference between this comparative example and Example 1 is that this comparative example does not contain any additives.

[0071] Comparative Example 4: This comparative example differs from Example 1 in that: this comparative example does not contain a base material.

[0072] Performance test: The performance test was performed on the fertilizers prepared in Example 1, Example 2, Example 3, Comparative Example 1, Comparative Example 2, Comparative Example 3 and Comparative Example 4, and the test data obtained are recorded in the following table:

[0073]

[0074]

[0075] In the performance test, multiple corn planting test fields with an area of ​​1 mu were prepared. The planting varieties and planting densities of the test fields were the same. The fertilizers prepared in Example 1, Example 2, Example 3, Comparative Example 1, Comparative Example 2, Comparative Example 3 and Comparative Example 4 were used to fertilize the multiple test fields respectively. After harvest, the per mu yield and average plant height were recorded.

[0076] It can be seen that the yield performance and plant height data of the fertilizers prepared in Comparative Examples 1, 2, 3, and 4 are all lower than those in Examples 1, 2, and 3; this shows that: in the preparation process of the organic-inorganic compound fertilizer, the base material is coordinated with the other multiple organic and inorganic components for synergistic preparation, wherein the base material uses bentonite as the main material, and the base material is coated on the granular material obtained by granulation during the preparation of the fertilizer, so that the base material is coated on the surface of the granular material to form fertilizer particles. After the fertilizer is applied and used, the coating layer is similar in material to the soil, can be effectively compatible with the soil, reduce the rejection reaction of the plant roots to foreign substances, and at the same time, the coating layer can reduce the release rate of the fertilizer, delay the nutrient replenishment process, and improve the use effect of the fertilizer;

[0077] Through the treatment of bentonite during powder preparation, the treated bentonite can absorb the nutrients in nitrogen, phosphorus and potassium fertilizers, so that the coating layer can also release some nutrients after contact with the soil, activating the root activity of plants. The cationic quaternary ammonium salt group of hexadecyltrimethylammonium bromide can replace the inorganic cations between the bentonite layers through electrostatic adsorption, enhancing the adsorption effect between fertilizer and soil, reducing the loss of fertilizer in the soil, and thus improving the use effect of the fertilizer;

[0078] By using additives in fertilizer preparation, in which apple wood is enzymatically treated, crushed, ground and fermented, an additive material with a rich pore structure is formed, which can improve the aeration of the soil, continuously supply carbon sources to the soil, and improve the soil's absorption efficiency of fertilizer nutrients.

[0079] By comparing and analyzing the relevant data in the table, it can be seen that the fertilizer prepared by the present invention not only has good yield performance, but also has excellent plant height data. This shows that the organic-inorganic compound fertilizer provided by the present invention has a broader market prospect and is more suitable for promotion.

[0080] Throughout this specification, references to terms such as "one embodiment," "example," or "specific example" indicate that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0081] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the present invention to the specific embodiments described. Obviously, many modifications and variations are possible based on the content of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. An organic-inorganic compound fertilizer, characterized in that: The invention comprises the following raw materials in parts by weight: 200-300 parts of base material, 60-80 parts of decomposed chicken manure, 40-60 parts of soybean meal, 40-60 parts of urea, 30-40 parts of weathered coal humic acid, 30-40 parts of diammonium phosphate, 20-30 parts of potassium sulfate, 20-30 parts of attapulgite, 10-20 parts of magnesium sulfate heptahydrate, 2-4 parts of chelated zinc, and 1-3 parts of borax; The base material is prepared by the following method: S1: Powder preparation, wherein the raw materials of the powder include bentonite, hydrogen chloride solution, water, sodium carbonate, and mixed material; S2: preparing an additive, wherein the raw materials of the additive include apple wood, cellulase, Aspergillus usami and Phanerochaete chrysosporium, and the mass of the additive is 35-40% of the mass of the powder; S3: Mixing treatment: the powder material and the additive are mixed to prepare the base material.

2. The organic-inorganic compound fertilizer according to claim 1, characterized in that The powder preparation method comprises the following steps: performing a pulverization treatment on bentonite to obtain a particle size of 100-200 meshes, and then performing a drying treatment in an oven at a setting of 100-110° C. for 30-40 minutes to obtain a coarse material, and adding the coarse material and a hydrogen chloride solution into a reactor at a setting of 60-80° C. and a stirring speed of 200-300 r / min, and performing a constant temperature stirring treatment for 2-3 hours. The obtained product is filtered, and then washed with water until neutral, and then performed a drying treatment in an oven at a setting of 50-60 ℃ drying treatment for 3 to 4 hours, the resulting product is added to a mixer, water and sodium carbonate are added to the mixer, the mixer is set at 400 to 500 r / min and stirred for 40 to 50 minutes to obtain a slurry, the slurry and the mixture are added to a reactor, the reactor is set at a temperature of 55 to 65 ℃, the stirring speed is 200 to 300 r / min, and the constant temperature stirring is carried out for 2 to 3 hours. The resulting product is rinsed with deionized water until neutral, and sent to an oven, and the oven is set at 60 to 70 ℃ for drying for 5 to 6 hours to obtain a powder.

3. The organic-inorganic compound fertilizer according to claim 2, characterized in that The mass of the hydrogen chloride solution is 2 to 3 times the mass of the bentonite, the mass concentration of the hydrogen chloride solution is 4 to 6%, the mass ratio of water to sodium carbonate is 1: (0.2 to 0.3), the mass of water is 10 to 14% of the mass of the bentonite, and the mass of the mixture is 25 to 30% of the mass of the slurry.

4. The organic-inorganic compound fertilizer according to claim 2, characterized in that The mixture is prepared by the following method: cetyltrimethylammonium bromide and warm water are added into a mixer, the mixer is set at 60-80 r / min and stirred for 4-6 minutes, then nitrogen, phosphorus and potassium fertilizers are added, the mixer is set at 200-300 r / min and stirred for 20-30 minutes to prepare the mixture.

5. The organic-inorganic compound fertilizer according to claim 4, characterized in that The mass ratio of hexadecyltrimethylammonium bromide to warm water is 1:(2-3), the temperature of the warm water is 60-80°C, the mass of the nitrogen, phosphorus and potassium fertilizer is 1-1.5 times the mass of the hexadecyltrimethylammonium bromide, the nitrogen, phosphorus and potassium fertilizer is ground before being added, and the grinding particle size is 300-400 meshes. The mass ratio of nitrogen, phosphorus and potassium in the nitrogen, phosphorus and potassium fertilizer is 1:(0.4-0.6):

1.

6. The organic-inorganic compound fertilizer according to claim 1, characterized in that The method for preparing the additive is as follows: apple wood is cut and then sent to a hammer mill for crushing, the crushed particle size is ≤4 mm, and apple wood particles are obtained; water 4 to 6 times the mass of the apple wood particles and the apple wood particles are added to a container; cellulase is added to the container, and the apple wood particles are soaked for 2 to 4 days; stirring is performed every 2 to 4 hours during the soaking process; the soaked product is sent to a pulper for pulping; Aspergillus usami and Phanerochaete chrysosporium are inoculated into the pulped product; after the inoculation is completed, the product is fermented for 7 to 9 days at a temperature of 32 to 34°C and a humidity of 70 to 72% to obtain the additive.

7. The organic-inorganic compound fertilizer according to claim 6, characterized in that The mass of the cellulase is 0.5-0.7% of the mass of water, and the total inoculation amount of Aspergillus usami and Phanerochaete chrysosporium is 0.6-0.8%.

8. The organic-inorganic compound fertilizer according to claim 6, characterized in that The mass ratio of Aspergillus usami and Phanerochaete chrysosporium is 1:

2.

9. The organic-inorganic compound fertilizer according to claim 1, characterized in that The mixing method is as follows: powder and additives are added into a mixer, water accounting for 25-30% of the mass of the powder is added into the mixer, the mixer is set at 100-140 r / min and stirred for 10-20 minutes, and the mixing is completed to obtain the base material.

10. A process for producing an organic-inorganic compound fertilizer according to any one of claims 1 to 9, characterized in that: The following steps are involved: Step 1: Weigh decomposed chicken manure, soybean meal, urea, weathered coal humic acid, diammonium phosphate, potassium sulfate, attapulgite, magnesium sulfate heptahydrate, chelated zinc, and borax as needed and add them to a mixer. Set the mixer to 400-600 r / min and stir for 20-30 minutes. Add the resulting product to a disc granulator for granulation to obtain granular material. Step 2: Add the granular material and the base material into a mixer, set the mixer at 200-300 r / min and stir for 40-50 minutes, add the resulting product into an oven, set the oven at 60-70° C. and dry for 40-60 minutes to obtain the fertilizer.

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