Alginic acid organic fertilizer and preparation method thereof

Abstract

The invention relates to the technical field of organic fertilizers, in particular to an alginic acid organic fertilizer and a preparation method thereof.The alginic acid organic fertilizer is prepared from 450-550 g / L of seaweed extract, 80-110 g / L of free amino acid, 80-110 g / L of nitrogen (N), 80-110 g / L of phosphorus (P2O5), 80-110 g / L of potassium (K2O), 40-60 g / L of microbial agent and microelements, and the alginic acid organic fertilizer can effectively improve the yield and quality of strawberries. According to the preparation method, complex instruments and equipment and special reaction conditions are not needed in the preparation process of the alginic acid organic fertilizer, large-scale production is easy, the production cost is reduced, the production efficiency is improved, and popularization and application of the product in the market are facilitated.

Description

Technical Field

[0002] The invention relates to the technical field of organic fertilizers, and in particular to an alginate organic fertilizer and a preparation method thereof. Background Art

[0003] Common fertilizers include chemical fertilizers and traditional organic fertilizers. Chemical fertilizers mainly contain macroelements such as nitrogen, phosphorus, potassium, and some trace elements, and their composition is relatively simple; traditional organic fertilizers are mainly made from composted animal and plant residues, feces, etc., and contain organic matter and a variety of nutrients, but the nutrient content and active ingredients are relatively low. Among the aforementioned fertilizers, chemical fertilizers have a fast effect and can quickly provide nutrients to plants, but the effect lasts for a short time, and excessive use can easily cause nutrient loss and soil compaction. Traditional organic fertilizers have a relatively slow effect, but can improve soil structure and increase soil fertility, but their nutrient release rate is greatly affected by environmental factors.

[0004] Alginate organic fertilizer is made of seaweed as the main raw material, through extraction, fermentation and other processes, and contains rich alginate, polysaccharides, proteins, vitamins, minerals, plant growth hormones and other biologically active substances. Its advantages are that, first of all, alginate organic fertilizer is a natural organic fertilizer with a wide range of sources, no pollution in the production process, and environmentally friendly. At the same time, it can reduce the use of chemical fertilizers and pesticides, reduce agricultural non-point source pollution, and is conducive to protecting the ecological environment. Secondly, the biologically active substances it contains can stimulate plant growth, enhance plant resistance, and improve plant absorption and utilization efficiency of nutrients. Finally, alginate organic fertilizer can improve soil structure, increase soil aeration and water retention, promote the growth and reproduction of soil microorganisms, improve soil biological activity, and is conducive to the balance and stability of the soil ecosystem.

[0005] However, although alginate organic fertilizer has good versatility at present, due to differences in the demand and application methods of alginate fertilizer for different crops and different soil conditions, the formula of alginate organic fertilizer needs further improvement. Summary of the invention

[0006] In order to solve the above technical problems, the purpose of the present invention is to provide an alginate organic fertilizer and a preparation method thereof. The alginate organic fertilizer can have a good growth-promoting effect on the crop of strawberry, and the preparation method is simple and easy, and has great market value.

[0007] In order to achieve the above technical effects, the present invention adopts the following technical solutions: In the first aspect, an alginate organic fertilizer comprises the following raw material components: 450-550 g / L of seaweed extract, 80-110 g / L of free amino acids, 80-110 g / L of nitrogen (N), 80-110 g / L of phosphorus (P 2 O 5) 80~110g / L, potassium (K 2 O) 80-110 g / L, microbial agents 40-60 g / L and trace elements.

[0008] Further, the following raw material components are included: 500g / L seaweed extract, 100g / L free amino acids, 100g / L nitrogen (N), 100g / L phosphorus (P 2 O 5 ) 100g / L, potassium (K 2 O) 100g / L, microbial agents 40-60g / L and trace elements.

[0009] Furthermore, the trace elements include: EDTA-Zn 5-7 g / L, EDTA-Fe 2.5-4 g / L, EDTA-Mn 3-5 g / L, EDTA-Cu 2-5 g / L, boron (B) 3-5 g / L and molybdenum (Mo) 0.3-0.6 g / L.

[0010] Furthermore, the trace elements include: EDTA-Zn 5.8 g / L, EDTA-Fe 3.1 g / L, EDTA-Mn 3.9 g / L, EDTA-Cu 3 g / L, boron (B) 4.4 g / L and molybdenum (Mo) 0.5 g / L.

[0011] Furthermore, the microbial agent is composed of the following microorganisms in parts by mass: Bacillus lilacinus, Bacillus subtilis, Trichoderma harzianum, Bacillus laterosporus and Bacillus thuringiensis, and the ratio of the number of viable bacteria of each species is 2-3:1-2:1-4:1-3:1-2.

[0012] Furthermore, the free amino acids consist of the following amino acids in parts by mass: 4.51 parts of proline, 2.97 parts of threonine, 5.88 parts of serine, 0.24 parts of arginine, 3.78 parts of aspartic acid, 5.25 parts of glutamic acid, 3.15 parts of glycine, 0.18 parts of histidine, 0.02 parts of phenylalanine, 1.2 parts of valine, 0.12 parts of methionine, 0.03 parts of leucine, 0.02 parts of isoleucine, 0.24 parts of cystine, 0.94 parts of lysine, 2.45 parts of alanine, and 0.26 parts of tyrosine.

[0013] In a second aspect, the present invention further comprises the following steps: S1: preparing seaweed extract and microbial agent; S2: Preparation of basic solution: Add an appropriate amount of water into the reaction kettle, add the weighed nitrogen source, phosphorus source and potassium source into the water respectively, stir and dissolve them, and mix them thoroughly; S3: Add amino acids, microbial agents, and trace amounts to the basic solution and disperse them evenly.

[0014] Compared with the prior art, the present invention has the following beneficial effects: First, the alginic acid organic fertilizer provided by the present invention contains a variety of natural plant growth regulators, polysaccharides, vitamins, etc., which can stimulate the growth of strawberry roots, enhance the root system's ability to absorb nutrients, and provide comprehensive nutrition for plant growth. At the same time, the nitrogen, phosphorus and potassium ratios in the alginic acid organic fertilizer are reasonable, the nitrogen element promotes the growth of strawberry leaves and stems, the phosphorus element helps flower bud differentiation and fruit development, and the potassium element enhances the stress resistance and fruit quality of strawberries. Reasonable proportions ensure that strawberries can obtain optimal nutrient support in both vegetative growth and reproductive growth stages. Free amino acids are composed of a variety of specific amino acids, such as proline, threonine, etc. These amino acids can be directly absorbed and utilized by strawberries, participate in protein synthesis and metabolic processes in the plant body, promote strawberry plant growth, improve photosynthesis efficiency, and improve the yield and quality of strawberries.

[0015] Secondly, the alginic acid organic fertilizer provided by the present invention also includes a microbial agent, which is composed of multiple strains such as purple spore, Bacillus subtilis and the like according to a specific ratio of viable bacteria. Purple spore can effectively inhibit harmful organisms such as strawberry root knot nematodes and reduce the damage of nematodes to the root system; Bacillus subtilis can decompose organic matter in the soil, release nutrients, and inhibit the growth of harmful pathogens; Trichoderma harzianum can form a symbiotic relationship with the strawberry root system and enhance the disease resistance of the root system; Bacillus laterosporus and Bacillus thuringiensis also play a role in improving soil microecology and inhibiting pests and diseases. Multiple strains work together to create a soil microecological environment that is conducive to the growth of strawberries. The microbial agent reproduces and metabolizes in the soil, can promote the formation of soil aggregate structure, and increase soil aeration and water retention. At the same time, microorganisms decompose insoluble minerals in the soil, improve the effectiveness of soil nutrients, and combine seaweed extracts and other nutrients to provide a better soil environment for strawberry growth, which is conducive to root growth and nutrient absorption.

[0016] Finally, in terms of the preparation method, the preparation process of the alginate organic fertilizer does not require complicated instruments and equipment and special reaction conditions, is easy to mass produce, reduces production costs, improves production efficiency, and is conducive to the promotion and application of the product in the market. DETAILED DESCRIPTION

[0017] The following embodiments are only used to more clearly illustrate the technical solutions of the present invention and are therefore only used as examples and are not intended to limit the scope of protection of the present invention.

[0018] It should be understood that the terms described in the present invention are only for describing special embodiments and are not intended to limit the present invention. In addition, for the numerical range in the present invention, it should be understood that each intermediate value between the upper and lower limits of the scope is also specifically disclosed. Each smaller range between the intermediate value in any stated value or stated range and any other stated value or intermediate value in the described range is also included in the present invention. The upper and lower limits of these smaller ranges can be independently included or excluded in the scope.

[0019] Unless otherwise indicated, all technical and scientific terms used herein have the same meanings as those generally understood by those skilled in the art. Although the present invention describes only preferred methods and materials, any methods and materials similar or equivalent to those described herein may also be used in the implementation or testing of the present invention. All documents mentioned in this specification are incorporated by reference to disclose and describe the methods and / or materials associated with the documents. In the event of a conflict with any incorporated document, the content of this specification shall prevail.

[0020] It will be apparent to those skilled in the art that various modifications and variations may be made to the specific embodiments of the present invention description without departing from the scope or spirit of the present invention. Other embodiments derived from the present invention description will be apparent to those skilled in the art. The present application description and examples are exemplary only.

[0021] The reagents and raw materials (including various bacterial agents) used in the following examples and effect verifications, unless otherwise specified, can be obtained from commercial channels; Example 1 This embodiment provides an alginate organic fertilizer and a preparation method thereof, wherein the fertilizer comprises the following components: Seaweed extract 450g / L, free amino acids 80g / L, nitrogen (N) 80g / L, phosphorus (P 2 O 5 ) 80g / L, potassium (K 2 O) 80g / L, microbial agents 40 g / L and trace elements; Among them, the microbial agent is composed of: Bacillus subtilis, Bacillus harzianum, Bacillus laterosporus and Bacillus thuringiensis, and the ratio of the number of viable bacteria of each species is 2:1:1:2:1.

[0022] The trace elements include: EDTA-Zn 5.8 g / L, EDTA-Fe 3.1 g / L, EDTA-Mn 3.9 g / L, EDTA-Cu 3g / L, boron (B) 4.4 g / L and molybdenum (Mo) 0.5 g / L.

[0023] The free amino acids consist of the following amino acids in parts by mass: 4.51 parts of proline, 2.97 parts of threonine, 5.88 parts of serine, 0.24 parts of arginine, 3.78 parts of aspartic acid, 5.25 parts of glutamic acid, 3.15 parts of glycine, 0.18 parts of histidine, 0.02 parts of phenylalanine, 1.2 parts of valine, 0.12 parts of methionine, 0.03 parts of leucine, 0.02 parts of isoleucine, 0.24 parts of cystine, 0.94 parts of lysine, 2.45 parts of alanine, and 0.26 parts of tyrosine.

[0024] At the same time, the present invention also provides the aforementioned alginic acid organic fertilizer and a preparation method thereof, which are specifically as follows: S1: preparing seaweed extract and microbial agent; S2: Preparation of basic solution: Add an appropriate amount of water into the reaction kettle, add the weighed nitrogen source, phosphorus source and potassium source into the water respectively, stir and dissolve them, and mix them thoroughly; S3: Add amino acids, trace amounts, and microbial agents to the basic solution and disperse them evenly.

[0025] The seaweed extract in S1 is obtained by extracting Ascophyllum nodosum.

[0026] Example 2 This embodiment provides an alginate organic fertilizer and a preparation method thereof, wherein the fertilizer comprises the following components: Seaweed extract 550g / L, free amino acids 110g / L, nitrogen (N) 110g / L, phosphorus (P 2 O 5 ) 110g / L, potassium (K 2 O) 110g / L, microbial agent 60 g / L and trace elements; Among them, the microbial agent is composed of: Bacillus subtilis, Bacillus harzianum, Bacillus laterosporus and Bacillus thuringiensis, and the ratio of the number of viable bacteria of each species is 2:1:1:2:1.

[0027] The trace elements include: EDTA-Zn 5.8 g / L, EDTA-Fe 3.1 g / L, EDTA-Mn 3.9 g / L, EDTA-Cu 3g / L, boron (B) 4.4 g / L and molybdenum (Mo) 0.5 g / L.

[0028] The free amino acids consist of the following amino acids in parts by mass: 4.51 parts of proline, 2.97 parts of threonine, 5.88 parts of serine, 0.24 parts of arginine, 3.78 parts of aspartic acid, 5.25 parts of glutamic acid, 3.15 parts of glycine, 0.18 parts of histidine, 0.02 parts of phenylalanine, 1.2 parts of valine, 0.12 parts of methionine, 0.03 parts of leucine, 0.02 parts of isoleucine, 0.24 parts of cystine, 0.94 parts of lysine, 2.45 parts of alanine, and 0.26 parts of tyrosine.

[0029] At the same time, the present invention also provides the aforementioned alginic acid organic fertilizer and a preparation method thereof, which are specifically as follows: S1: preparing seaweed extract and microbial agent; S2: Preparation of basic solution: Add an appropriate amount of water into the reaction kettle, add the weighed nitrogen source, phosphorus source and potassium source into the water respectively, stir and dissolve them, and mix them thoroughly; S3: Add amino acids, trace amounts, and microbial agents to the basic solution and disperse them evenly.

[0030] Example 3 This embodiment provides an alginate organic fertilizer and a preparation method thereof, wherein the fertilizer comprises the following components: Seaweed extract 500g / L, free amino acids 100g / L, nitrogen (N) 100g / L, phosphorus (P 2 O 5 ) 100g / L, potassium (K 2 O) 100 g / L, microbial agents 60 g / L and trace elements; Among them, the microbial agent is composed of: Bacillus subtilis, Bacillus harzianum, Bacillus laterosporus and Bacillus thuringiensis, and the ratio of the number of viable bacteria of each species is 2:1:1:2:1.

[0031] The trace elements include: EDTA-Zn 5.8 g / L, EDTA-Fe 3.1 g / L, EDTA-Mn 3.9 g / L, EDTA-Cu 3g / L, boron (B) 4.4 g / L and molybdenum (Mo) 0.5 g / L.

[0032] The free amino acids consist of the following amino acids in parts by mass: 4.51 parts of proline, 2.97 parts of threonine, 5.88 parts of serine, 0.24 parts of arginine, 3.78 parts of aspartic acid, 5.25 parts of glutamic acid, 3.15 parts of glycine, 0.18 parts of histidine, 0.02 parts of phenylalanine, 1.2 parts of valine, 0.12 parts of methionine, 0.03 parts of leucine, 0.02 parts of isoleucine, 0.24 parts of cystine, 0.94 parts of lysine, 2.45 parts of alanine, and 0.26 parts of tyrosine.

[0033] At the same time, the present invention also provides the aforementioned alginic acid organic fertilizer and a preparation method thereof, which are specifically as follows: S1: preparing seaweed extract and microbial agent; S2: Preparation of basic solution: Add an appropriate amount of water into the reaction kettle, add the weighed nitrogen source, phosphorus source and potassium source into the water respectively, stir and dissolve them, and mix them thoroughly; S3: Add amino acids, trace amounts, and microbial agents to the basic solution and disperse them evenly.

[0034] Example 4 This embodiment provides an alginate organic fertilizer and a preparation method thereof. The fertilizer is different from that in embodiment 3 in that the microbial agent in this embodiment is composed of: Bacillus subtilis, Trichoderma harzianum, Bacillus laterosporus and Bacillus thuringiensis, and the ratio of the number of viable bacteria of each species is 1:1:2:1.

[0035] Example 5 This embodiment provides an alginate organic fertilizer and a preparation method thereof. The fertilizer is different from that in Embodiment 3 in that the microbial agent in this embodiment is composed of: Pseudomonas aeruginosa, Trichoderma harzianum, Bacillus laterosporus and Bacillus thuringiensis, and the ratio of the number of viable bacteria of each species is 1:1:2:1.

[0036] Example 6 This embodiment provides an alginate organic fertilizer and a preparation method thereof. The fertilizer is different from that in Embodiment 3 in that the microbial agent in this embodiment is composed of: Pseudomonas aeruginosa, Bacillus subtilis, Trichoderma harzianum, and Bacillus laterosporus, and the ratio of the number of viable bacteria of each species is 2:1:1:2.

[0037] Example 7 This embodiment provides an alginate organic fertilizer and a preparation method thereof. The fertilizer is different from that in embodiment 3 in that the microbial agent in this embodiment is composed of: Bacillus lilacinus, Bacillus subtilis, Bacillus laterosporus and Bacillus thuringiensis, and the ratio of the number of viable bacteria of each species is 2:1:2:1.

[0038] Example 8 This embodiment provides an alginate organic fertilizer and a preparation method thereof. The fertilizer is different from that in embodiment 3 in that the microbial agent in this embodiment is composed of: Pseudomonas aeruginosa, Bacillus subtilis, Trichoderma harzianum and Bacillus thuringiensis, and the ratio of the number of viable bacteria of each species is 2:1:1:1.

[0039] Test example This test example uses the alginic acid organic fertilizer provided in the above examples 1 to 8 to carry out 1.1 Experimental Grouping: A plurality of experimental groups were set up, corresponding to the alginate organic fertilizers of Examples 1 to 8, respectively. The same number of strawberry plants (50 plants) were planted in each experimental group, and a control group was set up.

[0040] 1.2 Experimental methods During the strawberry planting period, planting and fertilization are carried out according to conventional methods, including: The control group used conventional fertilizers; Groups 1 to 8 used the alginic acid organic fertilizers of Examples 1 to 8, respectively; Control the amount of fertilizer applied to each group to be consistent.

[0041] 1.3 Experimental Results The fruit setting rate, single fruit weight, and sugar content (expressed as soluble solids content) were used as the measurement criteria. The experimental method was as follows: During the flowering period of strawberries, the number of flowers in each experimental group and control group was recorded, and the number of fruits was counted after the flowers faded to calculate the fruit setting rate. After the strawberry fruits matured, a certain number (such as 20) of fruits were randomly selected for weight measurement, and the weight of each fruit was recorded and the average fruit weight was calculated. For sugar content, professional sugar measuring instruments (such as handheld refractometers) were used to measure the sugar content of the fruits in each experimental group and control group. Each group was measured multiple times (such as 10 times), and the average value was taken as the sugar content data of the fruit in that group.

[0042] The experimental results are shown in Table 1: Table 1 Fruit setting rate, single fruit weight and sugar content of strawberries in each group

[0043] The above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the purpose and scope of the technical solutions of the present invention, which should be included in the scope of the claims of the present invention. The techniques, shapes, and structural parts not described in detail in the present invention are all known technologies.

Claims

1. An alginate organic fertilizer, characterized in that: The raw material components include: seaweed extract 450-550 g / L, free amino acid 80-110 g / L, nitrogen (N) 80-110 g / L, phosphorus (P2O5) 80-110 g / L, potassium (K2O) 80-110 g / L, microbial agent 40-60 g / L and trace elements.

2. The alginic acid organic fertilizer according to claim 1, characterized in that It includes the following raw material components: seaweed extract 500g / L, free amino acid 100g / L, nitrogen (N) 100g / L, phosphorus (P2O5) 100g / L, potassium (K2O) 100g / L, microbial agent 40-60g / L and trace elements.

3. The alginic acid organic fertilizer according to any one of claims 1 or 2, characterized in that: The trace elements include: EDTA-Zn 5-7 g / L, EDTA-Fe 2.5-4 g / L, EDTA-Mn 3-5 g / L, EDTA-Cu 2-5 g / L, boron (B) 3-5 g / L and molybdenum (Mo) 0.3-0.6 g / L.

4. The alginic acid organic fertilizer according to any one of claims 1 or 2, characterized in that: The trace elements include: EDTA-Zn 5.8 g / L, EDTA-Fe 3.1 g / L, EDTA-Mn 3.9 g / L, EDTA-Cu 3g / L, boron (B) 4.4 g / L and molybdenum (Mo) 0.5 g / L.

5. The alginic acid organic fertilizer according to any one of claims 1 or 2, characterized in that: The microbial agent is composed of the following microorganisms in parts by mass: Bacillus lilacinus, Bacillus subtilis, Trichoderma harzianum, Bacillus laterosporus and Bacillus thuringiensis, and the ratio of the number of viable bacteria of each species is 2-3:1-2:1-4:1-3:1-2.

6. The alginic acid organic fertilizer according to any one of claims 1 or 2, characterized in that: The free amino acids consist of the following amino acids in parts by mass: 4.51 parts of proline, 2.97 parts of threonine, 5.88 parts of serine, 0.24 parts of arginine, 3.78 parts of aspartic acid, 5.25 parts of glutamic acid, 3.15 parts of glycine, 0.18 parts of histidine, 0.02 parts of phenylalanine, 1.2 parts of valine, 0.12 parts of methionine, 0.03 parts of leucine, 0.02 parts of isoleucine, 0.24 parts of cystine, 0.94 parts of lysine, 2.45 parts of alanine, and 0.26 parts of tyrosine.

7. The method for preparing alginate organic fertilizer according to any one of claims 1 or 2, characterized in that: The following steps are involved: S1: preparing seaweed extract and microbial agent; S2: Preparation of basic solution: Add an appropriate amount of water into the reaction kettle, add the weighed nitrogen source, phosphorus source and potassium source into the water respectively, stir and dissolve them, and mix them thoroughly; S3: Add amino acids, trace amounts, and microbial agents to the basic solution and disperse them evenly.

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