Gamma-aminobutyric acid compound fertilizer and preparation method thereof

Abstract

The invention relates to the technical field of fertilizers, in particular to a gamma-aminobutyric acid compound fertilizer and a preparation method thereof. The gamma-aminobutyric acid compound fertilizer comprises the following components in percentage by weight: 5% of gamma-aminobutyric acid, 15% of nitrogen, 10% of phosphorus, 20% of potassium, 1% of trace elements, 10% of an organic fertilizer, 5% of a soil conditioner, 3% of a water retention agent, 1% of a surfactant and 30% of a filler. The preparation method of the gamma-aminobutyric acid compound fertilizer provided by the invention comprises the following steps: uniformly mixing the organic fertilizer, the soil conditioner, the water retention agent, the surfactant and the filler; the preparation method comprises the following steps: dissolving gamma-aminobutyric acid, nitrogen, phosphorus, potassium and trace elements in a proper amount of water, and adjusting the pH to be neutral; mixing and uniformly stirring; performing drying; performing granulation; and performing screening and cooling treatment. The gamma-aminobutyric acid compound fertilizer disclosed by the invention can comprehensively meet the requirements of crop growth, improve the soil structure, improve the water retention and air permeability of soil and improve the stress resistance of crops.

Description

Technical Field

[0001] The invention relates to the technical field of fertilizers, in particular to a gamma-aminobutyric acid compound fertilizer and a preparation method thereof. Background Art

[0002] As an important auxiliary material in modern agricultural production, compound fertilizer has experienced a process of development from single element to multi-element compound. With the in-depth study of plant nutritional needs, compound fertilizer has gradually become a key factor in increasing crop yields and improving soil quality. However, existing compound fertilizers often focus on providing major nutrients such as nitrogen, phosphorus, and potassium, and lack consideration for other bioactive substances and soil conditioners required for plant growth.

[0003] As a non-protein amino acid, γ-aminobutyric acid has significant effects on regulating plant growth and improving stress resistance. Studies have shown that γ-aminobutyric acid can promote plant root development and enhance the resistance of crops to adverse environments such as drought and salinity. However, the application of γ-aminobutyric acid in fertilizer formulations is still relatively limited, and its synergistic effect with conventional fertilizer ingredients has not yet been fully developed.

[0004] Soil conditioners and surfactants play an important role in improving soil physical properties, enhancing soil water retention and promoting plant nutrient absorption. For example, soil conditioners such as gypsum and bentonite can improve soil structure, increase soil aeration and water retention; while surfactants such as fatty acid methyl ester polyoxyethylene ether can reduce the surface tension of water and promote plant absorption of water and nutrients. The addition of these ingredients is expected to further enhance the comprehensive performance of compound fertilizers. Summary of the invention

[0005] In view of the above-mentioned deficiencies in the prior art, the present invention provides a γ-aminobutyric acid compound fertilizer and a preparation method thereof, aiming to develop a new type of compound fertilizer by combining γ-aminobutyric acid with other key nutrients and soil conditioners. The fertilizer can not only provide the main nutrients such as nitrogen, phosphorus, potassium, etc. required by plants, but also comprehensively improve the soil environment and promote the healthy growth of crops by adding trace elements, organic fertilizers, soil conditioners, water retainers, surfactants, fillers and other ingredients. To achieve the above-mentioned purpose, the present invention provides the following technical solutions:

[0006] A gamma-aminobutyric acid compound fertilizer comprises the following components in percentage by weight: 5% gamma-aminobutyric acid, 15% nitrogen, 10% phosphorus, 20% potassium, 1% trace elements, 10% organic fertilizer, 5% soil conditioner, 3% water retainer, 1% surfactant and 30% filler.

[0007] Furthermore, the trace elements include one or more of iron, manganese, zinc and copper.

[0008] Furthermore, the organic fertilizer includes one or more of humic acid, amino acids or their salts.

[0009] Furthermore, the soil conditioner includes one or more of gypsum, bentonite, lignite or their derivatives.

[0010] Furthermore, the moisture retaining agent is sodium polyacrylate.

[0011] Furthermore, the surfactant is fatty acid methyl ester polyoxyethylene ether, wherein the fatty acid methyl ester is selected from one or more of coconut oil, palm oil, soybean oil or castor oil fatty acid methyl ester.

[0012] Furthermore, the filler includes perlite, vermiculite or a mixture thereof.

[0013] The preparation method of the γ-aminobutyric acid compound fertilizer comprises the following steps:

[0014] (1) mixing organic fertilizer, soil conditioner, water retainer, surfactant and filler uniformly according to the proportion to form a basic mixture;

[0015] (2) dissolving γ-aminobutyric acid, nitrogen, phosphorus, potassium and trace elements in an appropriate amount of water according to the ratio, adjusting the pH to neutral, and forming a nutrient solution;

[0016] (3) mixing the nutrient solution obtained in step (2) with the base mixture obtained in step (1), and stirring them evenly to form a homogeneous mixture;

[0017] (4) drying the homogeneous mixture obtained in step (3) at 60° C. for 4 hours until the moisture content drops below 10%;

[0018] (5) granulating the dried homogeneous mixture obtained in step (3) to form particles with a diameter of 2 to 5 mm;

[0019] (6) Screening and cooling the granulated particles to obtain γ-aminobutyric acid compound fertilizer.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. Comprehensive nutrient supply: The present invention contains a variety of nutrients such as γ-aminobutyric acid, nitrogen, phosphorus, potassium and trace elements, which can fully meet the needs of crop growth.

[0022] 2. Improvement of soil environment: In the present invention, by adding organic fertilizers and soil conditioners, the soil structure can be improved and the water retention and air permeability of the soil can be enhanced.

[0023] 3. Improve crop stress resistance: The γ-aminobutyric acid in the present invention can improve the stress resistance of crops, so that they can maintain a good growth state even under adverse environmental conditions. DETAILED DESCRIPTION

[0024] 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 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 creative work are within the scope of protection of the present invention.

[0025] Embodiment 1:

[0026] 10 kg of humic acid, 5 kg of gypsum, 3 kg of sodium polyacrylate, 1 kg of fatty acid methyl ester polyoxyethylene ether and 30 kg of perlite were mixed evenly to form a basic mixture.

[0027] Dissolve 5 kg of γ-aminobutyric acid, 15 kg of nitrogen, 10 kg of phosphorus, 0.2 kg of potassium, 0.2 kg of iron, 0.2 kg of manganese, 0.2 kg of zinc, and 0.2 kg of copper in an appropriate amount of water, adjust the pH to neutral, and form a nutrient solution.

[0028] Mix the nutrient solution with the base mixture and stir well.

[0029] Dry at 60°C for 4 hours until the moisture content drops below 10%.

[0030] The process is granulated to form particles with a diameter of 2 to 5 mm, and then sieved and cooled to obtain the gamma-aminobutyric acid compound fertilizer.

[0031] Embodiment 2:

[0032] The difference between Example 2 and Example 1 is that 10 kg of amino acid, 5 kg of bentonite, 3 kg of sodium polyacrylate, 1 kg of coconut oil fatty acid methyl ester polyoxyethylene ether and 30 kg of vermiculite are mixed evenly to form a basic mixture.

[0033] Embodiment 3:

[0034] The difference between Example 3 and Example 1 is that 10 kg of amino acid, 5 kg of bentonite, 3 kg of sodium polyacrylate, 1 kg of soybean oil fatty acid methyl ester polyoxyethylene ether and 30 kg of vermiculite are mixed evenly to form a basic mixture.

[0035] The above content is a further detailed description of the present invention in combination with specific implementation methods. It cannot be considered that the specific implementation of the present invention is limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, simple modifications and substitutions made without departing from the concept of the present invention should be deemed to belong to the scope of protection of the present invention.

Claims

1. A γ-aminobutyric acid compound fertilizer, characterized in that: The components are as follows according to weight percentage: 5% of gamma-aminobutyric acid, 15% of nitrogen, 10% of phosphorus, 20% of potassium, 1% of trace elements, 10% of organic fertilizer, 5% of soil conditioner, 3% of water retaining agent, 1% of surfactant and 30% of filler.

2. The γ-aminobutyric acid compound fertilizer according to claim 1, characterized in that: The trace elements include one or more of iron, manganese, zinc and copper.

3. The γ-aminobutyric acid compound fertilizer according to claim 1, characterized in that: The organic fertilizer includes one or more of humic acid, amino acid or their salts.

4. The γ-aminobutyric acid compound fertilizer according to claim 1, characterized in that: The soil conditioner includes one or more of gypsum, bentonite, lignite or their derivatives.

5. The γ-aminobutyric acid compound fertilizer according to claim 1, characterized in that: The moisture retaining agent is sodium polyacrylate.

6. The γ-aminobutyric acid compound fertilizer according to claim 1, characterized in that: The surfactant is fatty acid methyl ester polyoxyethylene ether, wherein the fatty acid methyl ester is selected from one or more of coconut oil, palm oil, soybean oil or castor oil fatty acid methyl ester.

7. The γ-aminobutyric acid compound fertilizer according to claim 1, characterized in that: The filler includes perlite, vermiculite or a mixture thereof.

8. The method for preparing the γ-aminobutyric acid compound fertilizer according to any one of claims 1 to 7, characterized in that: The following steps are involved: (1) mixing organic fertilizer, soil conditioner, water retainer, surfactant and filler uniformly according to the proportion to form a basic mixture; (2) dissolving γ-aminobutyric acid, nitrogen, phosphorus, potassium and trace elements in an appropriate amount of water according to the ratio, adjusting the pH to neutral, and forming a nutrient solution; (3) mixing the nutrient solution obtained in step (2) with the base mixture obtained in step (1), and stirring them evenly to form a homogeneous mixture; (4) drying the homogeneous mixture obtained in step (3) at 60° C. for 4 hours until the moisture content drops below 10%; (5) granulating the dried homogeneous mixture obtained in step (3) to form particles with a diameter of 2 to 5 mm; (6) Screening and cooling the granulated particles to obtain γ-aminobutyric acid compound fertilizer.