Bamboo vinegar liquid-based novel humic acid fertilizer and preparation method thereof

Abstract

The invention particularly relates to a bamboo vinegar liquid-based novel humic acid fertilizer and a preparation method thereof. The bamboo vinegar-based novel humic acid fertilizer is prepared from the following raw materials: bamboo vinegar, humic acid, urea, monopotassium phosphate, potassium chloride, potassium hydroxide, boric acid and zinc sulfate. The preparation method comprises the following steps: S1, mixing and stirring bamboo vinegar and urea at room temperature until the solution becomes uniform; s2, adding humic acid, monopotassium phosphate and potassium chloride into the solution obtained in the step S1, and stirring and mixing at 75-85 DEG C to obtain a uniform liquid; s3, adding bamboo vinegar, potassium hydroxide, boric acid and zinc sulfate into the solution obtained in the step S2, and stirring and mixing at 75-85 DEG C to obtain uniform liquid; and S4, filtering the liquid obtained in the step S3, and standing to obtain a finished product. By compounding the raw materials, the effects of the bamboo vinegar and humic acid are not reduced, the microbial activity of soil can be improved, the environment-friendly effect is achieved, the growth and development of plants are promoted, and the yield and quality of crops are improved.

Description

Technical Field

[0001] The invention belongs to the field of agricultural fertilizers, and in particular relates to a method for preparing a new type of bamboo vinegar liquid-based humic acid fertilizer. Background Art

[0002] In agricultural production, nutrients in the soil mainly come from chemical fertilizers, and soil fertility is an important material basis for sustainable agricultural development. Large-scale application of chemical fertilizers will not only cause an imbalance in soil nutrient ratios, deterioration of physical and chemical properties, and reduction of microbial diversity, but will also cause environmental problems such as soil compaction and groundwater pollution. Among them, the research and development and application of new fertilizers are important ways to solve the above problems.

[0003] Humic acid fertilizer is an ideal new type of fertilizer. Humic acid fertilizer is a kind of fertilizer made by combining humic acid with various nutrients such as nitrogen, phosphorus, potassium and other substances through reactions such as ammoniation, complexation and double decomposition. It has the characteristics of increasing the diversity of soil microbial communities and improving the physical and chemical properties of soil. Humic acid liquid fertilizer is a combination of humic acid and liquid fertilizer. It not only takes into account the advantages of humic acid, but also has the advantages of liquid fertilizer such as fast fertilizer effect, high crop absorption rate, high content of various nutrients and comprehensive nutrition. However, humic acid is generally made from lignite or weathered coal of coal-based humic acid, which is oxidized by strong acid or strong alkali. It has the problems of single source and high production cost. Studies have shown that adding functional substances to humic acid fertilizers can achieve synergistic effects, such as guar gum, sulfur, Bacillus subtilis, etc.

[0004] Bamboo vinegar is a biologically active substance that can be used as a hypertonic synergist in some organic liquid fertilizers. Bamboo vinegar is a green-yellow or brown-yellow acidic liquid byproduct (pH of about 3) obtained by condensation and recovery during the carbonization (pyrolysis) of bamboo. It has a complex composition and contains hundreds of organic components and a variety of minerals. The main component is water, followed by organic acids, phenols, ketones, alcohols, etc. Studies have found that applying bamboo vinegar alone to crops can promote plant growth and development, increase crop yields, and have a certain improvement effect on the soil. For example, when rice seeds soaked in bamboo vinegar are sown, the germination rate of rice seeds is significantly improved. Spraying bamboo vinegar on the leaves during the growth period helps to promote the growth of rice seedlings, wide and tender green leaves, more developed root systems, and faster tillering. Low-concentration bamboo vinegar applied to the soil can promote the growth of soil microorganisms, such as fungi, actinomycetes, and bacteria, and increase soil enzyme activity. In addition, bamboo vinegar itself has certain antibacterial, disinfecting and deodorizing effects. Adding an appropriate amount of bamboo vinegar as a deodorant during composting can help reduce odor and reduce pests and diseases, thereby producing high-quality compost. It is an excellent pure natural antibacterial, disease-preventing and odor-reducing agent for poultry and livestock farms.

[0005] Combining bamboo vinegar with humic acid liquid fertilizer according to a certain proportion can obtain a bamboo vinegar-based novel humic acid fertilizer, which can improve soil and increase soil microbial diversity while satisfying the nutrients required for plant growth and promoting plant growth. In current agricultural production, most bamboo vinegar applications are foliar spraying, and very few are combined with humic acid liquid fertilizer. The present invention combines the two, so that the bamboo vinegar-based novel humic acid fertilizer can be used as a growth regulator to promote the growth of crop roots, increase crop yields, improve crop quality, and reduce the impact of pests and diseases on crops, thereby achieving an effect of 1+1>2. It has a greater development prospect in agricultural promotion, and the present invention is specially proposed in view of this. Summary of the invention

[0006] The object of the present invention is to provide a novel bamboo vinegar-based humic acid fertilizer to solve the problem that there are few bamboo vinegar liquid fertilizer products for root application proposed in the above-mentioned background technology.

[0007] The above-mentioned object of the present invention is achieved by the following technical solutions:

[0008] To achieve the above purpose, a bamboo vinegar liquid-based novel humic acid fertilizer is provided, wherein the raw materials include bamboo vinegar liquid, humic acid, urea, potassium dihydrogen phosphate, potassium chloride, potassium hydroxide, boric acid and zinc sulfate.

[0009] In one embodiment, the raw material consumption is calculated by weight: 300-450 parts of bamboo vinegar, 15-30 parts of humic acid, 125-135 parts of urea, 35-45 parts of potassium dihydrogen phosphate, 35-45 parts of potassium chloride, 5-10 parts of potassium hydroxide, 0.1-0.2 parts of zinc sulfate, and 0.8-1.5 parts of boric acid.

[0010] In one embodiment, the raw material consumption, by mass, is as follows: 350 parts of bamboo vinegar, 15.8 parts of humic acid, 130 parts of urea, 42 parts of potassium dihydrogen phosphate, 42 parts of potassium chloride, 8 parts of potassium hydroxide, 1 part of boric acid, and 0.1 part of zinc sulfate.

[0011] The bamboo vinegar liquid of the invention is a green-yellow or brown-yellow liquid obtained by condensation and recovery during the carbonization (pyrolysis) of bamboo, with a pH value of 2-4, and its main component is water, and contains various organic substances such as organic acids, phenols, aldehydes, ketones, etc.

[0012] The humic acid described in the present invention is acidic potassium fulvic acid.

[0013] The bamboo vinegar liquid is prepared from green bamboo as raw material by adopting pyrolysis carbonization technology, and the pH value of the bamboo vinegar liquid is 2.8-4.

[0014] Another object of the present invention is to provide a method for preparing a novel bamboo vinegar liquid-based humic acid fertilizer with low price and simple process.

[0015] Specifically, a method for preparing a novel bamboo vinegar-based humic acid fertilizer is carried out in the following steps:

[0016] S1: Take bamboo vinegar and urea, stir them thoroughly at room temperature until the urea is fully dissolved;

[0017] S2: Take potassium dihydrogen phosphate, potassium chloride and humic acid, add them into the solution in step S1 in sequence, and stir them thoroughly at 75-85° C.;

[0018] S3: adding bamboo vinegar, potassium hydroxide, zinc sulfate and boric acid to the solution in step S2, and stirring thoroughly at 75-85° C.;

[0019] S4: Filter the solution in step S3 to complete the product.

[0020] As a preferred technical solution of the present invention, the stirring time in step S1 is 15 to 20 minutes, and the rotation speed is 300 to 450 r / min. The stirring time in steps S2 and S3 is 20 to 25 minutes, and the rotation speed is 100 to 150 r / min.

[0021] Another object of the present invention is to provide the application of the above-mentioned bamboo vinegar liquid-based novel humic acid fertilizer.

[0022] Application of bamboo vinegar liquid-based new humic acid fertilizer: add 190-200kg of water to every 1kg of bamboo vinegar liquid-based new humic acid fertilizer, stir evenly and sprinkle on the roots of crops.

[0023] Beneficial effects of the present invention:

[0024] In the invention, bamboo vinegar, humic acid, urea, potassium dihydrogen phosphate, potassium chloride, zinc sulfate, boric acid and potassium hydroxide are compounded to prepare a bamboo vinegar-based novel humic acid fertilizer. The introduction of humic acid can promote plant growth and development, promote the growth of plant aboveground biomass, and will not affect the efficacy of humic acid and other elements, save costs, and be environmentally friendly. The invention can be widely used in the planting and cultivation of vegetables, bananas, corns and other plants, has certain disease prevention and disease resistance effects, can promote the growth and development of crops, increase production and income, has economic benefits, and improves soil environment and regulates soil pH. The invention is an environmentally friendly fertilizer and has a prospect of popularization and application. DETAILED DESCRIPTION

[0025] The present invention is further described below in conjunction with specific examples, but the present invention is not limited to the following examples. The methods described are conventional methods unless otherwise specified. The materials described can be obtained from public commercial channels unless otherwise specified.

[0026] Example 1

[0027] The bamboo vinegar liquid-based novel humic acid fertilizer comprises the following components in parts by weight: 350 parts of bamboo vinegar liquid, 15.8 parts of humic acid, 130 parts of urea, 43 parts of potassium dihydrogen phosphate, 42 parts of potassium chloride, 8 parts of potassium hydroxide, 0.1 parts of zinc sulfate and 1 part of boric acid.

[0028] The humic acid is acidic potassium fulvic acid.

[0029] The bamboo vinegar liquid is prepared from green bamboo as raw material by adopting pyrolysis carbonization technology. The pH value of the bamboo vinegar liquid is 2.8-4.

[0030] The new type of humic acid liquid compound fertilizer based on bamboo vinegar is prepared according to the following method:

[0031] S1: Take 250 parts of bamboo vinegar and 130 parts of urea, stir them thoroughly at room temperature for 20 minutes at a speed of 350r / min until the urea is fully dissolved;

[0032] S2: Take 43 parts of potassium dihydrogen phosphate, 42 parts of potassium chloride, and 15.8 parts of humic acid, add them to the solution in S1 in sequence, and stir them thoroughly at 75-85°C for 25 minutes at a speed of 120 r / min;

[0033] S3: Take 100 parts of bamboo vinegar, 8 parts of potassium hydroxide, 0.1 parts of zinc sulfate and 1 part of boric acid and add them to the solution in S2, and stir them thoroughly at 75-85°C for 25 minutes at a speed of 120 r / min;

[0034] S4: Filter the solution in S3, let it stand, and when no precipitation occurs, the product is completed.

[0035] Example 2

[0036] The bamboo vinegar liquid-based novel humic acid fertilizer comprises the following components in parts by weight: 350 parts of bamboo vinegar liquid, 15 parts of humic acid, 125 parts of urea, 35 parts of potassium dihydrogen phosphate, 35 parts of potassium chloride, 6 parts of potassium hydroxide, 0.1 parts of zinc sulfate and 1 part of boric acid.

[0037] The humic acid is acidic potassium fulvic acid.

[0038] The bamboo vinegar liquid is prepared from green bamboo as raw material by adopting pyrolysis carbonization technology. The pH value of the bamboo vinegar liquid is 2.8-4.

[0039] The new type of humic acid fertilizer based on bamboo vinegar liquid is prepared according to the following method:

[0040] S1: Take 250 parts of bamboo vinegar and 125 parts of urea, stir them thoroughly for 15 minutes at room temperature, at a speed of 300r / min, until the urea is fully dissolved;

[0041] S2: Take 35 parts of potassium dihydrogen phosphate, 35 parts of potassium chloride, and 15 parts of humic acid, add them to the solution in S1 in sequence, stir them thoroughly at 75-85°C for 20 minutes, and the speed is 100r / min;

[0042] S3: Take 100 parts of bamboo vinegar, 6 parts of potassium hydroxide, 0.1 parts of zinc sulfate and 1 part of boric acid and add them to the solution in S2, stir them thoroughly at 75-85°C for 20 minutes at a speed of 100 r / min;

[0043] S4: Filter the solution in S3, let it stand, and when no precipitation occurs, the product is completed.

[0044] Example 3

[0045] The bamboo vinegar liquid-based novel humic acid fertilizer of the present embodiment comprises the following components in parts by mass: 350 parts of bamboo vinegar liquid, 15 parts of humic acid, 135 parts of urea, 35 parts of potassium dihydrogen phosphate, 35 parts of potassium chloride, 6 parts of potassium hydroxide, 0.1 parts of zinc sulfate, and 1 part of boric acid.

[0046] The humic acid is acidic potassium fulvic acid.

[0047] The bamboo vinegar liquid is prepared from green bamboo as raw material by adopting pyrolysis carbonization technology. The pH value of the bamboo vinegar liquid is 2.8-4.

[0048] The bamboo vinegar liquid-based novel humic acid fertilizer of the present embodiment is prepared as follows:

[0049] S1: Take 250 parts of bamboo vinegar and 135 parts of urea, stir them thoroughly for 20 minutes at room temperature, at a speed of 400r / min, until the urea is fully dissolved;

[0050] S2: Take 35 parts of potassium dihydrogen phosphate, 35 parts of potassium chloride, and 15 parts of humic acid, add them to the solution in S1 in sequence, stir them thoroughly at 75-85°C for 20 minutes, and the speed is 100r / min;

[0051] S3: Take 100 parts of bamboo vinegar, 6 parts of potassium hydroxide, 0.1 parts of zinc sulfate and 1 part of boric acid and add them to the solution in S2, stir them thoroughly at 75-85°C for 20 minutes at a speed of 100 r / min;

[0052] S4: Filter the solution in S3, let it stand, and when no precipitation occurs, the product is completed.

[0053] Example 4

[0054] The novel bamboo vinegar-based humic acid fertilizer comprises the following components in parts by weight: 350 parts of bamboo vinegar, 15 parts of humic acid, 135 parts of urea, 40 parts of potassium dihydrogen phosphate, 45 parts of potassium chloride, 8 parts of potassium hydroxide, 0.1 parts of zinc sulfate and 1 part of boric acid.

[0055] The humic acid is acidic potassium fulvic acid.

[0056] The bamboo vinegar liquid is prepared from green bamboo as raw material by adopting pyrolysis carbonization technology. The pH value of the bamboo vinegar liquid is 2.8-4.

[0057] The new type of humic acid fertilizer based on bamboo vinegar liquid is prepared according to the following method:

[0058] S1: Take 250 parts of bamboo vinegar and 135 parts of urea, stir them thoroughly for 20 minutes at room temperature, at a speed of 400r / min, until the urea is fully dissolved;

[0059] S2: Take 40 parts of potassium dihydrogen phosphate, 45 parts of potassium chloride and 15 parts of humic acid, add them into the solution in S1 in sequence, stir them thoroughly at 75-85°C for 25 minutes, and the speed is 120r / min;

[0060] S3: Take 100 parts of bamboo vinegar, 8 parts of potassium hydroxide, 0.1 parts of zinc sulfate and 1 part of boric acid and add them to the solution in S2, and stir them thoroughly at 75-85°C for 25 minutes at a speed of 120 r / min;

[0061] S4: Filter the solution in S3, let it stand, and when no precipitation occurs, the product is completed.

[0062] Experimental Example: Application test of new humic acid fertilizer based on bamboo vinegar

[0063] Test location: Greenhouse of South China Agricultural University

[0064] Test type: Pot test

[0065] Fertilizers tested: bamboo vinegar liquid-based novel humic acid fertilizer (prepared according to Example 1), conventional liquid fertilizer (prepared according to Example 1, bamboo vinegar liquid was replaced by an equal amount of clean water, and no humic acid was added), humic acid liquid fertilizer (prepared according to Example 1, bamboo vinegar liquid was replaced by an equal amount of clean water), bamboo vinegar liquid-based fertilizer (prepared according to Example 1, no humic acid was added)

[0066] Test soil: sandy loam, the matrix is ​​mixed in a volume ratio of 2:1

[0067] Test crops: 3-leaf Brazilian banana seedlings

[0068] Test time: Transplantation on April 22, 2024

[0069] The experimental treatment design is as follows:

[0070] CK: Apply base fertilizer + equal amount of clean water;

[0071] M1: application of base fertilizer + conventional liquid fertilizer (prepared as in Example 1, bamboo vinegar liquid was replaced by an equal amount of water, no humic acid was added, 22-8-15);

[0072] M2: application of base fertilizer + humic acid liquid fertilizer (prepared as in Example 1, bamboo vinegar liquid replaced by an equal amount of water, 22-8-15, humic acid: 30 g / L);

[0073] M3: application of base fertilizer + bamboo vinegar liquid-based fertilizer (prepared as in Example 1, without adding humic acid, 22-8-15);

[0074] M4: Apply base fertilizer + bamboo vinegar liquid-based new humic acid fertilizer (prepared according to Example 1, 22-8-15, humic acid: 30 g / L).

[0075] Fertilization method: Mix and dilute the fertilizer in proportion, and then evenly sprinkle it on the roots of crops.

[0076] Five treatments were set up, each with 7 replicates, and the treatments were arranged in random blocks. Each pot was filled with 6 kg of soil, and the amount of base fertilizer applied to each pot was 1 g (converted to 65 kg / mu). Fertilization treatment began half a month after transplanting, and then liquid fertilizer was applied once every 7 to 8 days at a fertilizer concentration of 0.5%. Each pot was fertilized with 240 mL of fertilizer solution each time, and the control group was fertilized with the same amount of water. A total of 7 fertilizations were applied, and other management methods and management measures such as crop disease and pest control remained the same. After 3 months of the experiment, the fresh weight, dry weight, plant height, stem thickness, and spad value were harvested and measured. The results of the fertilization experiment are as follows:

[0077] The stem diameter, plant height, aboveground fresh weight, aboveground dry weight, underground fresh weight, underground dry weight and spad value of M4 treatment were significantly higher than those of other groups. In the M4 treatment, the stem diameter increased by 4.8%, 5.4% and 6.7% compared with the M1, M2 and M3 treatment groups, respectively; the plant height increased by 7.7%, 7.9% and 2.5% compared with the M1, M2 and M3 treatment groups, respectively; the aboveground fresh weight increased by 31.2%, 41.7% and 33.0% compared with the M1, M2 and M3 treatment groups, respectively; the aboveground dry weight increased by 19.0%, 31.8% and 28.4% compared with the M1, M2 and M3 treatment groups, respectively; the underground fresh weight increased by 17.5%, 12.5% ​​and 3.1% compared with the M1, M2 and M3 treatment groups, respectively; the underground dry weight increased by 32.2%, 39.7% and 9.3% compared with the M1, M2 and M3 treatment groups, respectively; the spad value increased by 19.4%, 15.9% and 11.2% compared with the M1, M2 and M3 treatment groups, respectively.

[0078] Among the four treatments, the new humic acid fertilizer based on bamboo vinegar had the best fertilizer effect in the banana seedling stage. Compared with the fertilizer simply adding bamboo vinegar or humic acid, the interaction between bamboo vinegar and humic acid can promote the banana's absorption of fertilizer, thereby promoting the growth and development of bananas.

Claims

1. A bamboo vinegar liquid-based novel humic acid fertilizer, characterized in that: The raw materials include bamboo vinegar, humic acid, urea, potassium dihydrogen phosphate, potassium chloride, potassium hydroxide, boric acid and zinc sulfate.

2. The bamboo vinegar liquid-based novel humic acid fertilizer according to claim 1, characterized in that: The raw material consumption is calculated in parts by mass: Bamboo vinegar: 300-450 parts; Humic acid: 15-30 parts; Urea: 125-135 parts; Potassium dihydrogen phosphate: 35-45 parts; Potassium chloride: 35-45 parts; Potassium hydroxide: 5-10 parts; Boric acid: 0.8-1.5 parts; Zinc sulfate: 0.1-0.2 parts.

3. The novel bamboo vinegar-based humic acid fertilizer according to claim 2, characterized in that: The raw material consumption, calculated by weight, includes: 350 parts of bamboo vinegar, 15.8 parts of humic acid, 130 parts of urea, 42 parts of potassium dihydrogen phosphate, 42 parts of potassium chloride, 8 parts of potassium hydroxide, 1 part of boric acid, and 0.1 part of zinc sulfate.

4. A method for preparing the novel bamboo vinegar-based humic acid fertilizer according to any one of claims 1 to 3, characterized in that: Follow the steps below in order: S1: Take a portion of bamboo vinegar and urea, stir them thoroughly at room temperature until the urea is fully dissolved; S2: Take potassium dihydrogen phosphate, potassium chloride and humic acid, add them into the solution in step S1 in sequence, and stir them thoroughly at 75-85° C.; S3: adding another portion of bamboo vinegar, potassium hydroxide, zinc sulfate and boric acid to the solution in step S2, and stirring thoroughly at 75-85° C.; S4: Filter the solution in step S3, let it stand, and complete the product.

5. The preparation method according to claim 4, characterized in that: In step S1, the stirring time is 20 min and the rotation speed is 350 r / min.

6. The preparation method according to claim 4, characterized in that: The stirring time in step S2 is 25 min and the rotation speed is 120 r / min.

7. The preparation method according to claim 4, characterized in that: The stirring time in step S3 is 25 min and the rotation speed is 120 r / min.

8. The use of the novel bamboo vinegar-based humic acid fertilizer according to any one of claims 1 to 3, characterized in that: Every 1 kg of the bamboo vinegar liquid-based novel humic acid fertilizer is added with 190-200 kg of water, stirred evenly and then sprinkled on the roots of crops.