Granular bio-organic fertilizer containing biostimulant and production process of granular bio-organic fertilizer

Abstract

The invention discloses a granular bio-organic fertilizer containing biostimulant and a production process thereof, the bio-organic fertilizer comprises the following raw materials by mass: 35%-55% of activated mineral source humic acid, 40%-50% of plant stalk, 5%-15% of oil cake, 0.5%-1.0% of a decomposing inoculant, 0.2%-0.4% of aminobutyric acid, 0.8%-1.6% of polyglutamic acid, and 0.5%-1.0% of a functional inoculant. The production process comprises the steps of fermentation, after-ripening, granulation and film coating. The biological organic fertilizer containing various active substances is obtained by efficiently integrating four types of biostimulants, namely activated mineral source humic acid, aminobutyric acid, polyglutamic acid and functional microorganisms; the production process is simple, the production cost is low, obvious adhesion, caking or hypha growth cannot occur in the shelf life, the survival time of the strain is effectively prolonged, and application and popularization and fertilizer efficiency exertion of the product are facilitated.

Description

Technical Field

[0001] The invention belongs to the technical field of fertilizer production, and in particular relates to a granular bio-organic fertilizer containing biostimulants and a production process thereof. Background Art

[0002] In the current existing technology, there are mainly two processes for producing granular bio-organic fertilizer containing aminobutyric acid and polyglutamic acid using mineral humic acid.

[0003] The first process is to directly mix aminobutyric acid, polyglutamic acid, bacteria and mineral humic acid organic fertilizer and then granulate them. If extrusion granulation is used in this process, the temperature during the granulation process is relatively high. If disc granulation is used, it needs to be dried before packaging due to its high moisture content. The high temperature during the granulation and drying process will affect the activity of functional bacteria and the yield of aminobutyric acid and polyglutamic acid.

[0004] The second process is to granulate the organic fertilizer and then add the bacteria, aminobutyric acid, and polyglutamic acid powder to the surface of the fertilizer particles in the form of a coating. This process generally uses water or molasses as a binder to facilitate the uniform and sufficient coating of the additives on the surface of the fertilizer particles. However, the fertilizer obtained by this method has a high viscosity and is easy to stick together, which is not conducive to the long-term storage of the product. It also requires the use of expensive aminobutyric acid and polyglutamic acid powder, which is not conducive to promotion and application. During long-term storage, due to the high moisture content or high nutrients in molasses, mycelium is easy to grow on the surface, affecting product quality.

[0005] Therefore, developing a new production process to solve the technical difficulties in fertilizer production, application and storage in the prior art is the key to solving the problem. Summary of the Invention

[0006] The present invention provides a granular bio-organic fertilizer containing biostimulants and a production process thereof.

[0007] The first object of the present invention is achieved by the following technical solution: the granular biological organic fertilizer containing biostimulants includes the following raw materials, calculated by mass percentage: 35% to 55% of activated mineral humic acid, 40% to 50% of plant stems, 5% to 15% of oil cake, 0.5% to 1.0% of decomposing bacteria agent, 0.2% to 0.4% of aminobutyric acid, 0.8% to 1.6% of polyglutamic acid, and 0.5% to 1.0% of functional bacteria agent.

[0008] The second object of the present invention is achieved through the following technical solutions: 1) Fermentation: Crush and mix the activated mineral humic acid, plant stems and oil cake, adjust the moisture content to 50%-60% of the total material, adjust the pH to 6-8, add the decomposing bacteria agent, mix well, and then pile and aerobic ferment for 15-20 days to obtain the semi-finished organic fertilizer; 2) After-ripening: the semi-finished organic fertilizer obtained by fermentation in step 1 is stacked and allowed to ferment naturally for 10 to 20 days to obtain a powdered organic fertilizer product; 3) Granulation: Granulate the organic fertilizer obtained in step 2 by disc granulation or extrusion granulation, and obtain the granular organic fertilizer product after screening; 4) Coating: GABA, polyglutamic acid and functional bacterial agent are fully mixed to obtain coating solution; the coating solution is then evenly sprayed on the outside of the fertilizer particles prepared in step 3, mixed evenly, and dried naturally at room temperature to obtain granular bio-organic fertilizer containing biostimulants.

[0009] The beneficial effects of the present invention are: 1. By efficiently integrating four types of biostimulants, namely activated mineral humic acid, aminobutyric acid, polyglutamic acid and functional microorganisms, a bio-organic fertilizer containing multiple active substances is obtained. This can effectively improve the physical and chemical properties of the soil, stimulate the growth of crop roots, increase crop photosynthesis, promote the absorption and utilization of nutrients by crops, enhance crop resistance, improve the quality of agricultural products, and reduce the occurrence of diseases and pests; 2. The aminobutyric acid and polyglutamic acid used are fermentation broths obtained through biological fermentation engineering, which have low cost, small addition amount, and low raw material cost. In addition, the production process of this patent does not require drying, the production process is simple, and the production cost is low. At the same time, the granular bio-organic fertilizer produced by this patented technology will not have obvious stickiness, caking or mycelial growth during the shelf life. The good product appearance can effectively promote the application and promotion of the product and the fertilizer effect. 3. Use activated mineral humic acid, plant straw, and organic fertilizer made by aerobic fermentation of oil cake as the matrix for coating liquid. The adsorption of organic fertilizer can prolong the survival period of the bacteria. At the same time, the nutrients in organic fertilizer and aminobutyric acid and polyglutamic acid fermentation liquid can also provide nutrition for functional bacteria and promote their colonization in the rhizosphere. DETAILED DESCRIPTION

[0010] In order to enable those skilled in the art to better understand the technical solution of the present invention, its specific implementation methods are described in detail below with reference to embodiments.

[0011] A granular bio-organic fertilizer containing biostimulants comprises the following raw materials, calculated by mass percentage: 35%-55% of activated mineral humic acid, 40%-50% of plant stems, 5%-15% of oil cake, 0.5%-1.0% of a decomposing bacteria agent, 0.2%-0.4% of aminobutyric acid, 0.8%-1.6% of polyglutamic acid, and 0.5%-1.0% of a functional bacteria agent.

[0012] The activated mineral-source humic acid is a product of natural organic matter activated by acid and alkali, and the humic acid content is not less than 70%.

[0013] The plant stems include any one or more of crop stems, shrub branches or flower stems; when the plant stems include more than two types, the ratio of crop stems to shrub branches is 2-5:1-2, the ratio of shrub branches to flower stems is 1:2-5, and the ratio of crop stems to flower stems is 1:1; and the ratio of crop stems, shrub branches and flower stems is 2-5:1-2:2-5.

[0014] The oil cake is the oil cake left after oil is pressed from oil crops, and the oil cake is composed of the oil cakes of one or at least two oil crops.

[0015] The decomposing bacteria agent is suitable for decomposing and fermenting plant-derived organic matter.

[0016] The aminobutyric acid is a liquid agent produced by a biological fermentation method with an effective content of not less than 50%, and the polyglutamic acid is a liquid agent produced by a biological fermentation method with an effective content of not less than 3.5%.

[0017] The functional bacterial agent is a microbial agent with disease resistance and growth promotion functions, and is in the form of liquid or water-soluble powder or granules.

[0018] A production process of granular bio-organic fertilizer containing biostimulants comprises the following steps: 1) Fermentation: Crush and mix the activated mineral humic acid, plant stems and oil cake, adjust the moisture content to 50%-60% of the total material, adjust the pH to 6-8 (pH is adjusted with lime or wood ash), add the composting agent, mix well, and then pile up for aerobic fermentation for 15-20 days. During the aerobic fermentation process, when the center temperature of the material rises above 40°C, turn the pile 1-2 times a day to dissipate heat until the center temperature drops below 30°C, then stop turning the pile to obtain the semi-finished organic fertilizer; 2) After-ripening: the semi-finished organic fertilizer obtained by fermentation in step 1 is stacked and allowed to ferment naturally for 10 to 20 days to obtain a powdered organic fertilizer product; 3) Granulation: Granulate the organic fertilizer obtained in step 2 by disc granulation or extrusion granulation, and obtain the granular organic fertilizer product after screening; 4) Coating: GABA, polyglutamic acid and functional bacterial agent are fully mixed to obtain coating solution; the coating solution is then evenly sprayed on the outside of the fertilizer particles prepared in step 3, mixed evenly, and dried naturally at room temperature to obtain granular bio-organic fertilizer containing biostimulants.

[0019] Example 1

[0020] A production process of granular bio-organic fertilizer containing biostimulants comprises the following steps: 1) Fermentation: 35% to 55% of activated mineral humic acid, 40% to 50% of plant stems, and 5% to 15% of oilseed cake are crushed and mixed by weight, the moisture content is adjusted to 50% to 60% of the total material, the pH value is adjusted to 6 to 8, 0.5% to 1.0% of a composting agent is added, and after uniform mixing, the material is piled and aerobic fermented for 15 to 20 days. During the aerobic fermentation process, when the central temperature of the material rises to above 40°C, the pile is turned 1 to 2 times a day to dissipate heat until the central temperature of the material drops below 30°C, at which time turning is stopped to obtain a semi-finished organic fertilizer. The activated mineral humic acid used in this method is a product of acid-base activation of natural organic matter, and the humic acid content is not less than 70%. The composting agent is a composting agent suitable for composting and fermenting plant-derived organic matter. 2) Post-ripening: The semi-finished organic fertilizer obtained by fermentation in step 1 is placed in a pile and naturally fermented for 10 to 20 days to ensure that the fermentation reaction in the material is complete and sufficient, and the material properties are stable, thereby obtaining a powdered organic fertilizer product; 3) Granulation: Granulate the organic fertilizer obtained in step 2 by disc granulation or extrusion granulation, and obtain the granular organic fertilizer product after screening; 4) Coating: Take 0.2%-0.4% of aminobutyric acid, 0.8%-1.6% of polyglutamic acid and 0.5%-1.0% of functional bacterial agent and mix them thoroughly to obtain a coating liquid; then spray the coating liquid evenly on the outside of the fertilizer particles prepared in step 3, mix them evenly, and dry them naturally at room temperature to obtain granular bio-organic fertilizer containing biostimulants; wherein, the aminobutyric acid used in this method is a liquid agent with an effective content of not less than 50%, and the polyglutamic acid is a liquid agent with an effective content of not less than 3.5%; the functional bacterial agent is a microbial agent with disease resistance and growth promotion functions.

[0021] Example 2

[0022] A production process of granular bio-organic fertilizer containing biostimulants comprises the following steps: 1) Fermentation: 35% activated mineral humic acid, 40% plant stems and 5% oil cake are crushed and mixed by weight, the moisture content is adjusted to 50% of the total material, the pH is adjusted to 6-8, 0.5% composting agent is added, and after uniform mixing, the material is piled and aerobic fermented for 15-20 days. During the aerobic fermentation process, when the central temperature of the material rises to above 40°C, the pile is turned 1-2 times a day to dissipate heat until the central temperature of the material drops below 30°C, then the turning is stopped to obtain a semi-finished organic fertilizer. The activated mineral humic acid used in this method is a product of natural organic matter activated by acid and alkali, and the humic acid content is not less than 70%; the composting agent is a composting agent suitable for composting and fermenting plant-derived organic matter. 2) Post-ripening: The semi-finished organic fertilizer obtained by fermentation in step 1 is placed in a pile and naturally fermented for 10 to 20 days to ensure that the fermentation reaction in the material is complete and sufficient, and the material properties are stable, thereby obtaining a powdered organic fertilizer product; 3) Granulation: Granulate the organic fertilizer obtained in step 2 by disc granulation or extrusion granulation, and obtain the granular organic fertilizer product after screening; 4) Coating: Take 0.2% of aminobutyric acid, 0.8% of polyglutamic acid and 0.5% of functional bacterial agent and mix them thoroughly to obtain a coating liquid; then spray the coating liquid evenly on the outside of the fertilizer particles prepared in step 3, mix them evenly, and dry them naturally at room temperature to obtain granular biological organic fertilizer containing biostimulants; wherein, the aminobutyric acid used in this method is a liquid agent with an effective content of not less than 50%, and the polyglutamic acid is a liquid agent with an effective content of not less than 3.5%; the functional bacterial agent is a microbial agent with disease resistance and growth promotion functions.

[0023] Example 3

[0024] A production process of granular bio-organic fertilizer containing biostimulants comprises the following steps: 1) Fermentation: 45% activated mineral humic acid, 45% plant stems and 10% oil cake are crushed and mixed by mass percentage, the moisture content is adjusted to 50%-60% of the total material, the pH is adjusted to 6-8, 0.7% of a composting agent is added, the mixture is evenly mixed, and the pile is covered for aerobic fermentation for 15-20 days. During the aerobic fermentation process, when the central temperature of the material rises above 40°C, the pile is turned 1-2 times a day to dissipate heat until the central temperature of the material drops below 30°C, at which time turning is stopped to obtain a semi-finished organic fertilizer. The activated mineral humic acid used in this method is a product of acid-base activation of natural organic matter, and the humic acid content is not less than 70%; the composting agent is a composting agent suitable for composting and fermenting plant-derived organic matter. 2) Post-ripening: The semi-finished organic fertilizer obtained by fermentation in step 1 is placed in a pile and naturally fermented for 10 to 20 days to ensure that the fermentation reaction in the material is complete and sufficient, and the material properties are stable, thereby obtaining a powdered organic fertilizer product; 3) Granulation: Granulate the organic fertilizer obtained in step 2 by disc granulation or extrusion granulation, and obtain the granular organic fertilizer product after screening; 4) Coating: Take 0.3% aminobutyric acid, 1.2% polyglutamic acid and 0.7% functional bacterial agent and mix them thoroughly to obtain a coating liquid; then spray the coating liquid evenly on the outside of the fertilizer particles prepared in step 3, mix them evenly, and dry them naturally at room temperature to obtain granular bio-organic fertilizer containing biostimulants; wherein, the aminobutyric acid used in this method is a liquid agent with an effective content of not less than 50%, and the polyglutamic acid is a liquid agent with an effective content of not less than 3.5%; the functional bacterial agent is a microbial agent with disease resistance and growth promotion functions.

[0025] Example 4 A production process of granular bio-organic fertilizer containing biostimulants comprises the following steps: 1) Fermentation: 55% of activated mineral humic acid, 50% of plant stems, and 15% of oil cakes are crushed and mixed by weight, the moisture content is adjusted to 60% of the total material, the pH is adjusted to 6-8, 1.0% of a composting agent is added, and after uniform mixing, the material is piled and aerobic fermented for 15-20 days. During the aerobic fermentation process, when the central temperature of the material rises above 40°C, the pile is turned 1-2 times a day to dissipate heat until the central temperature of the material drops below 30°C, at which time turning is stopped to obtain a semi-finished organic fertilizer. The activated mineral humic acid used in this method is a product of acid-base activation of natural organic matter, and the humic acid content is not less than 70%. The composting agent is a composting agent suitable for composting and fermenting plant-derived organic matter. 2) Post-ripening: The semi-finished organic fertilizer obtained by fermentation in step 1 is placed in a pile and naturally fermented for 10 to 20 days to ensure that the fermentation reaction in the material is complete and sufficient, and the material properties are stable, thereby obtaining a powdered organic fertilizer product; 3) Granulation: Granulate the organic fertilizer obtained in step 2 by disc granulation or extrusion granulation, and obtain the granular organic fertilizer product after screening; 4) Coating: Take 0.4% aminobutyric acid, 1.6% polyglutamic acid and 1.0% functional bacterial agent and mix them thoroughly to obtain a coating liquid; then spray the coating liquid evenly on the outside of the fertilizer particles prepared in step 3, mix them evenly, and dry them naturally at room temperature to obtain granular biological organic fertilizer containing biostimulants; wherein, the aminobutyric acid used in this method is a liquid agent with an effective content of not less than 50%, and the polyglutamic acid is a liquid agent with an effective content of not less than 3.5%; the functional bacterial agent is a microbial agent with disease resistance and growth promotion functions.

[0026] The following is an effect test of the granular bio-organic fertilizer containing biostimulants prepared in the above embodiment:

[0027] Test 1: Product shelf life test 1. Test time Trial time: April 2025 2. Test materials Test materials: granular bio-organic fertilizers in Examples 2 to 4, with an effective viable bacterial count (theoretical value) of 1 billion / g, an added amount of aminobutyric acid of 1000 ppm, and an added amount of polyglutamic acid of 280 ppm.

[0028] 3. Test methods Three methods were used to produce granular bio-organic fertilizer. After sample preparation, the initial values ​​of the effective viable bacterial count, GABA, and polyglutamic acid content were measured, and the differences between the initial values ​​and the theoretical values ​​were compared. The samples were sealed and stored in a cool, dry place. After 15 and 30 days, the effective viable bacterial count, polyglutamic acid content, and GABA content were measured again.

[0029] 4. Results and Analysis After testing the content of biostimulants in three fertilizer samples, the statistical data are as follows:

[0030] Analysis of the above test data shows that the contents of humic acid and effective live bacteria in the three fertilizer samples are relatively stable, while the contents of aminobutyric acid and polyglutamic acid decrease over time, with a very small decrease, which can ensure that the fertilizer remains effective during its shelf life.

[0031] Test 2: Fertilizer Efficiency Potted Plant Test 1. Materials and Methods 1.1 Test materials Fertilizer samples in Examples 2 to 4; tomato seedlings.

[0032] 1.2 Test method The experiment used three different formulas of bio-organic fertilizer products to carry out pot experiments. Each formula was set up with 6 groups of replicates, and a group of blank controls was also set up. See Table 1 for details.

[0033] 2. Data Collection Transplanting was carried out on March 28 and harvesting was carried out on April 25. The plant height, stem diameter, chlorophyll content, and dry weight of each treatment were measured and the data were analyzed.

[0034] 3. Data Analysis The agronomic traits of each treatment were as follows:

[0035] Analyzing the above data, the statistical values ​​of plant height, stem diameter and dry weight were the best in treatment 2, and there was little difference between treatments 1 and 3. The agronomic traits of all fertilization treatments were better than those of the blank control.

[0036] 4. Test conclusion The treatment with granular bio-organic fertilizer containing biostimulants showed better growth than the treatment without fertilization, indicating that fertilizer has the effect of promoting crop growth.

Claims

1. A granular bio-organic fertilizer containing biostimulants, comprising the following raw materials, by mass percentage: 35% to 55% activated mineral humic acid, 40% to 50% plant stems, 5% to 15% oil cake, 0.5% to 1.0% decomposing bacteria agent, 0.2% to 0.4% aminobutyric acid, 0.8% to 1.6% polyglutamic acid, and 0.5% to 1.0% functional bacteria agent.

2. The granular bio-organic fertilizer containing biostimulants according to claim 1, characterized in that: The activated mineral-source humic acid is a product of natural organic matter activated by acid and alkali, and the humic acid content is not less than 70%.

3. The granular bio-organic fertilizer containing biostimulants according to claim 1, characterized in that: The plant stems include any one or more of crop stems, shrub branches or flower stems.

4. The granular bio-organic fertilizer containing biostimulants according to claim 1, characterized in that: The oil cake is the oil cake left after oil is pressed from oil crops, and the oil cake is composed of the oil cakes of one or at least two oil crops.

5. The granular bio-organic fertilizer containing biostimulants according to claim 1, characterized in that: The decomposing bacteria agent is suitable for decomposing and fermenting plant-derived organic matter.

6. The granular bio-organic fertilizer containing biostimulants according to claim 1, characterized in that: The aminobutyric acid is a liquid agent produced by a biological fermentation method with an effective content of not less than 50%, and the polyglutamic acid is a liquid agent produced by a biological fermentation method with an effective content of not less than 3.5%.

7. The granular bio-organic fertilizer containing biostimulants according to claim 1, characterized in that: The functional bacterial agent is a microbial agent with disease resistance and growth promotion functions, and is in the form of liquid or water-soluble powder or granules.

8. The production process of granular bio-organic fertilizer with biostimulants according to any one of claims 1 to 7, characterized in that: The steps include: 1) Fermentation: Crush and mix the activated mineral humic acid, plant stems and oil cake, adjust the moisture content to 50%-60% of the total material, adjust the pH to 6-8, add the decomposing bacteria agent, mix well, and then pile and aerobic ferment for 15-20 days to obtain the semi-finished organic fertilizer; 2) After-ripening: the semi-finished organic fertilizer obtained by fermentation in step 1 is stacked and allowed to ferment naturally for 10 to 20 days to obtain a powdered organic fertilizer product; 3) Granulation: Granulate the organic fertilizer obtained in step 2 by disc granulation or extrusion granulation, and obtain the granular organic fertilizer product after screening; 4) Coating: GABA, polyglutamic acid and functional bacterial agent are fully mixed to obtain coating solution; the coating solution is then evenly sprayed on the outside of the fertilizer particles prepared in step 3, mixed evenly, and dried naturally at room temperature to obtain granular bio-organic fertilizer containing biostimulants.

9. The production process of granular bio-organic fertilizer with biostimulants according to claim 8, characterized in that: During the aerobic fermentation process of step 1, when the center temperature of the material rises to above 40°C, the compost is turned 1 to 2 times a day to dissipate heat until the center temperature of the material drops below 30°C, at which time turning the compost is stopped.

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