Yield-increasing type fertilizer synergistic auxiliary agent
By using the synergistic role of polyaline, potassium potassium potassium, and potassium, the prepared increased fertilizer efficiency additives solved the problem of high existing fertilizer additives and unstable production effects. And quality and reduce the effect of environmental pollution.
Patent Information
- Application Number
- CN202411690286.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-25
- Publication Date
- 2025-01-28
AI Technical Summary
The existing production-increasing fertilizer additives have high costs, unstable production-increasing effect, and may cause pollution to the soil and the environment.
Adopt the synergies of polytryphrodicine, mineral potassium potassium, potassium aneurine, tritenopyl silicol, water preservation agent, amino acid, nano -silicon, composite bacteria, and humic acid to prepare a kind of increased fertilizer to increase efficiency additives Essence
It significantly improves the absorption of nutrients in crops, enhances the disease resistance and resistance of crops, improves crop yield and quality, reduces the use of chemical fertilizers, and reduces environmental pollution.
Smart Images
Figure BDA0005150760480000091 
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Abstract
Description
Technical Field
[0001] The invention relates to the technical field of fertilizers, and in particular to a yield-increasing fertilizer synergist. Background Art
[0002] With the rapid development of agriculture in my country, farmers have higher and higher requirements for the yield and quality of crops. In order to increase yields, farmers usually use fertilizers, pesticides and other substances to increase soil fertility and prevent pests and diseases. However, long-term excessive use of fertilizers and pesticides will lead to soil pollution, ecological environment deterioration, and even potential threats to human health.
[0003] Fertilizer synergists are active substances that are used to increase the effectiveness of nutrients. They increase the supply of nutrients to crops by fixing nitrogen and activating phosphorus and potassium elements that are difficult to use in the soil, and play a certain role in regulating plant physiological functions. When used in combination with fertilizers, they can effectively improve the crop growth environment, promote crop growth, and improve fertilizer utilization efficiency to achieve the goals of saving fertilizer and increasing efficiency.
[0004] At present, there are many kinds of fertilizer adjuvants on the market, but most of them have the following problems: (1) Unstable effect: Due to the influence of factors such as soil environment and crop type, the effect of fertilizer adjuvants is difficult to guarantee. (2) High cost: Some fertilizer adjuvants are expensive, which increases farmers' production costs. (3) Environmental pollution: Some fertilizer adjuvants may pollute the soil and environment during use. In order to improve fertilizer utilization and reduce the impact on the environment, it is particularly important to develop a yield-increasing fertilizer adjuvant. Summary of the invention
[0005] In view of this, the present invention provides a yield-increasing fertilizer synergist, which aims to solve the technical problems of the existing yield-increasing fertilizer synergist, such as high cost and unstable yield-increasing effect.
[0006] In order to achieve the above object, the present invention adopts the following technical solution:
[0007] The present invention provides a yield-increasing fertilizer synergist, comprising the following components in parts by weight:
[0008] 30-50 parts of polyglutamic acid, 10-20 parts of mineral potassium humate, 1-5 parts of triphenylsilanol, 1-5 parts of zinc sulfate, 1-5 parts of nano silicon, 1-10 parts of water retaining agent, 10-20 parts of composite bacterial agent, 20-30 parts of amino acid, and 10-20 parts of humic acid.
[0009] Furthermore, the water retaining agent includes one or more of ammonium polyacrylate, sodium polyacrylate and potassium polyacrylate.
[0010] Furthermore, the composite bacterial agent includes Bacillus subtilis and / or Bacillus licheniformis.
[0011] Furthermore, the number of viable bacteria in the composite bacterial agent is ≥ 5×10 9 cfu / g.
[0012] Furthermore, the amino acids include one or more of phenylalanine, arginine, leucine, methionine and serine.
[0013] Further, the preparation process of the polyglutamic acid is as follows:
[0014] The metal alkoxide is sequentially hydrolyzed, dried, and heat-treated to obtain an active catalyst, and L-glutamic acid and the active catalyst are mixed and then subjected to polymerization reaction to obtain polyglutamic acid;
[0015] The polymerization reaction temperature is 80-150° C., the polymerization reaction pressure is ≤5 MPa, and the polymerization reaction time is 5-8 hours.
[0016] Furthermore, the preparation process of the mineral source potassium humate is as follows:
[0017] The mineral-source humic acid is dissolved, neutralized, crystallized, filtered and dried in sequence to obtain mineral-source potassium humate.
[0018] Furthermore, the preparation process of the composite bacterial agent is as follows:
[0019] The bacterial strains are activated, fermented, dried, screened and packaged in sequence to obtain a composite bacterial agent.
[0020] It can be seen from the above technical solution that compared with the prior art, the beneficial effects of the present invention are as follows:
[0021] 1. The yield-increasing fertilizer synergist provided by the present invention effectively increases crop yields by promoting plant absorption of nutrients and enhancing photosynthesis capacity. The combination of polyglutamic acid and mineral potassium humate significantly improves the plant's absorption efficiency of major nutrients such as nitrogen, phosphorus, and potassium; the application of water retaining agent effectively maintains soil moisture, reduces water evaporation, and ensures a stable supply of water required for crop growth; the addition of amino acids and nano-silicon further promotes the physiological metabolism of crops and improves the utilization efficiency of nutrients, thereby achieving a significant increase in crop yields.
[0022] 2. Triphenylsilanol can effectively inhibit excessive nitrogen absorption by crops. For example, it can effectively control the content of nitrogen compounds in corn leaves and stems, making the plant structure more stable. Even under severe climatic conditions, it can effectively resist natural disasters and reduce the lodging rate, thereby ensuring the stability of corn yields.
[0023] 3. Humic acid can effectively improve soil structure, increase soil porosity, create a good environment for root development, and thus improve crop quality. At the same time, the synergistic effect of amino acids and nano-silicon increases the content of protein and carbohydrates in crops, making crop products more nutritious and of better quality.
[0024] 4. The introduction of compound microbial agents increases the number of beneficial microorganisms in the soil, significantly enhances the disease resistance and stress resistance of crops, and effectively reduces the occurrence of diseases and insect pests. In addition, the addition of nano-silicon enhances the lodging resistance of crops, improves the stability and drought resistance of crops, and enables crops to better adapt to adverse environments.
[0025] 5. The yield-increasing fertilizer synergist provided by the present invention reduces the use of chemical fertilizers and reduces the environmental pollution caused by chemical fertilizers while increasing the yield. The application of humic acid and mineral potassium fulvic acid improves the soil environment, promotes the growth of beneficial microorganisms in the soil, and helps maintain ecological balance.
[0026] 6. In conclusion, the present invention, through the synergistic effect of polyglutamic acid, mineral potassium humate, triphenylsilanol, water retaining agent, amino acid, nano-silicon, composite bacterial agent and humic acid, shows obvious beneficial effects in increasing crop yield, improving crop quality, enhancing crop stress resistance, saving resources and protecting the environment, etc. It provides important technical support for my country's agricultural production, has broad application prospects and significant economic and social benefits. DETAILED DESCRIPTION
[0027] The present invention provides a yield-increasing fertilizer synergist, comprising the following components in parts by weight:
[0028] 30-50 parts of polyglutamic acid, 10-20 parts of mineral potassium humate, 1-5 parts of triphenylsilanol, 1-5 parts of zinc sulfate, 1-5 parts of nano silicon, 1-10 parts of water retaining agent, 10-20 parts of composite bacterial agent, 20-30 parts of amino acid, and 10-20 parts of humic acid.
[0029] In the present invention, the amount of polyglutamic acid used is preferably 35 to 45 parts, more preferably 40 parts.
[0030] In the present invention, the usage of mineral source potassium humate is preferably 12 to 18 parts, more preferably 14 to 16 parts.
[0031] In the present invention, the amount of triphenylsilanol used is preferably 2 to 4 parts, more preferably 3 parts.
[0032] In the present invention, the amount of zinc sulfate used is preferably 2 to 4 parts, more preferably 3 parts.
[0033] In the present invention, the dosage of nano silicon is preferably 2 to 4 parts, more preferably 3 parts.
[0034] In the present invention, the amount of the water retaining agent used is preferably 2 to 8 parts, more preferably 4 to 6 parts.
[0035] In the present invention, the dosage of the composite bacterial agent is preferably 12 to 18 parts, and more preferably 14 to 16 parts.
[0036] In the present invention, the amount of amino acid used is preferably 22 to 28 parts, more preferably 24 to 26 parts.
[0037] In the present invention, the amount of humic acid used is preferably 12 to 18 parts, more preferably 14 to 16 parts.
[0038] In the present invention, the water retaining agent includes one or more of ammonium polyacrylate, sodium polyacrylate and potassium polyacrylate, preferably ammonium polyacrylate and / or sodium polyacrylate, and more preferably ammonium polyacrylate.
[0039] In the present invention, the composite bacterial agent includes Bacillus subtilis and / or Bacillus licheniformis, preferably Bacillus subtilis.
[0040] In the present invention, the number of viable bacteria in the composite bacterial agent is ≥ 5×10 9 cfu / g, preferably viable count ≥ 8×10 9 cfu / g, more preferably the number of viable bacteria is ≥5×10 10 cfu / g.
[0041] In the present invention, the amino acid includes one or more of phenylalanine, arginine, leucine, methionine and serine, preferably one or more of phenylalanine, arginine, leucine and serine, and more preferably one or more of arginine, leucine and serine.
[0042] In the present invention, the preparation process of polyglutamic acid is as follows:
[0043] The metal alkoxide is sequentially hydrolyzed, dried, and heat-treated to obtain an active catalyst, and L-glutamic acid and the active catalyst are mixed and then subjected to polymerization reaction to obtain polyglutamic acid;
[0044] The polymerization reaction temperature is 80-150° C., preferably 90-140° C., and more preferably 100-120° C.; the polymerization reaction pressure is ≤5 MPa, preferably ≤4 MPa, and more preferably ≤3 MPa; the polymerization reaction time is 5-8 h, and preferably 6-7 h.
[0045] The metal alkoxide includes potassium ethylene glycol and / or sodium ethylene glycol; the hydrolysis temperature is 25 to 80° C., preferably 30 to 60° C., and more preferably 40 to 50° C.; the hydrolysis time is 1 to 8 hours, preferably 2 to 7 hours, and more preferably 3 to 5 hours;
[0046] The drying temperature is 50-150° C. to prevent the catalyst from decomposing, preferably 60-120° C., more preferably 80-100° C.; the drying time is 2-12 hours, preferably 4-10 hours, more preferably 6-8 hours.
[0047] The heat treatment is divided into two stages. The temperature of the first stage is 200-500°C and the insulation time is 2-10 hours. The temperature of the second stage is 600-1000°C and the insulation time is 1-6 hours. Rare earth elements can also be added during the heat treatment, and the amount of rare earth elements added is 0.1-5% of the mass of the active catalyst.
[0048] The preparation of the active catalyst has the following characteristics: (1) It adopts a chemical synthesis method, which is simple to operate and easy to control. (2) A catalyst with high activity is prepared through steps such as hydrolysis, drying, and heat treatment. (3) The reaction conditions are easy to achieve, the required equipment is simple, and it is convenient for large-scale production.
[0049] In the present invention, the preparation process of the mineral source potassium humate is as follows:
[0050] The mineral-source fulvic acid is sequentially dissolved, neutralized, crystallized, filtered and dried to obtain mineral-source potassium fulvic acid;
[0051] The mass concentration of the dissolution is 10-20%, preferably 12-18%, and more preferably 14-16%; the pH value of the neutralization is 7-9, and preferably pH 8; the temperature of the crystallization is 5-10°C, preferably 6-9°C, and more preferably 7-8°C; the time of crystallization is 12-24h, preferably 15-22h, and more preferably 16-20h.
[0052] In the present invention, the preparation process of the composite bacterial agent is as follows:
[0053] The bacterial strains are activated, fermented, dried, screened and packaged in sequence to obtain a composite bacterial agent;
[0054] The activation temperature is 30-35°C, preferably 32-34°C; the activation humidity is 70-80%, preferably 72-78%, more preferably 74-76%; the activation time is 12-24h, preferably 14-22h, more preferably 16-20h;
[0055] The fermentation temperature is 35-40°C, preferably 36-38°C; the fermentation humidity is 75-85%, preferably 78-82%, and more preferably 80%; the fermentation time is 48-72h, preferably 36h; good ventilation and stirring should be maintained during the fermentation process to ensure uniform growth of the bacteria;
[0056] The drying temperature is 40-60° C., and the drying is performed until the moisture content is between 5% and 10%.
[0057] The composite bacterial agent prepared by the method for preparing the composite bacterial agent provided by the present invention has high strain activity and long survival time, and can significantly improve the soil environment and increase the growth rate and yield of crops.
[0058] In the present invention, the preparation method of the yield-increasing fertilizer synergist is as follows: polyglutamic acid, mineral potassium humate, zinc sulfate, nano silicon, water retaining agent, composite bacterial agent, amino acid and humic acid are mixed to obtain the yield-increasing fertilizer synergist.
[0059] In the present invention, the yield-increasing fertilizer synergist is applied to solid fertilizer or liquid fertilizer; when applied to solid fertilizer, the yield-increasing fertilizer synergist accounts for 5-20% of the mass of the solid fertilizer, preferably 8-16%, and more preferably 10-12%; when applied to liquid fertilizer, the yield-increasing fertilizer synergist accounts for 10-30% of the mass of the liquid fertilizer, preferably 15-25%, and more preferably 20%.
[0060] The technical solutions provided by the present invention are described in detail below in conjunction with the embodiments, but they should not be construed as limiting the protection scope of the present invention.
[0061] Preparation of polyglutamic acid: 100 g of sodium ethylene glycol was dissolved in 500 mL of deionized water and hydrolyzed at 50° C. for 3 h; after the hydrolysis was completed, it was dried at 80° C. for 10 h; the dried material was first heat-treated at 300° C. for 6 h, then heated to 800° C. and heat-treated for 3 h to obtain an active catalyst; L-glutamic acid and the catalyst were mixed in a mass ratio of 100:1, polymerized at 100° C. and 3 MPa for 6 h, and the product was centrifuged, filtered, washed, and dried in sequence to obtain high-purity polyglutamic acid, which was used in all the following examples and comparative examples.
[0062] Preparation of mineral-derived potassium humate: drying and crushing the mineral-derived humic acid raw material to reduce its moisture content to less than 10% and the particle size to more than 200 meshes; adding the pretreated mineral-derived humic acid into an appropriate amount of deionized water, stirring and dissolving, and the mass concentration of the solution is 16%; adding an appropriate amount of potassium hydroxide solution into the solution, adjusting the pH value to 8, so that the carboxyl and hydroxyl groups in the humic acid react with potassium hydroxide to generate mineral-derived potassium humate; crystallizing the neutralized solution at 8°C for 16 hours; filtering the crystallized solution to separate mineral-derived potassium humate crystals; drying the separated mineral-derived potassium humate crystals to reduce their moisture content to less than 5%, which are used in all the following embodiments and comparative examples.
[0063] Preparation of composite bacterial agent: select the same amount of high-quality Bacillus subtilis strain and Bacillus licheniformis strain, and activate them for 20 hours at 30°C and 75% humidity; mix the activated strain, bentonite and rice bran in a mass ratio of 1:5:3, and place them in a fermentation tank, and ferment them for 36 hours at 35°C and 75% humidity. Good ventilation and stirring should be maintained during the fermentation process to ensure uniform growth of the bacteria; after the fermentation is completed, dry the composite bacterial agent at 50°C to a moisture content of less than 10%, screen the dried composite bacterial agent, and remove impurities; package the screened composite bacterial agent for all the following embodiments and comparative examples.
[0064] Example 1
[0065] The raw material components used in this embodiment are as follows: 40 parts of polyglutamic acid, 15 parts of mineral potassium humate, 3 parts of triphenylsilanol, 3 parts of zinc sulfate, 3 parts of nano silicon, 5 parts of ammonium polyacrylate, 16 parts of composite bacterial agent, 24 parts of amino acids (8 parts each of arginine, leucine and serine), and 15 parts of humic acid.
[0066] The yield-increasing fertilizer synergistic aid can be obtained by uniformly mixing the above raw material components.
[0067] Example 2
[0068] The raw material components used in this embodiment are as follows: 35 parts of polyglutamic acid, 14 parts of mineral potassium humate, 2 parts of triphenylsilanol, 2 parts of zinc sulfate, 4 parts of nano silicon, 6 parts of sodium polyacrylate, 18 parts of composite bacterial agent, 15 parts of amino acids (3 parts each of phenylalanine, methionine, arginine, leucine and serine), and 12 parts of humic acid.
[0069] The yield-increasing fertilizer synergistic aid can be obtained by uniformly mixing the above raw material components.
[0070] Example 3
[0071] The raw material components used in this embodiment are as follows: 30 parts of polyglutamic acid, 12 parts of mineral potassium humate, 4 parts of triphenylsilanol, 1 part of zinc sulfate, 5 parts of nano silicon, 8 parts of potassium polyacrylate, 20 parts of composite bacterial agent (10 parts each of Bacillus subtilis and Bacillus licheniformis), 12 parts of amino acids (3 parts each of phenylalanine, arginine, leucine and serine), and 10 parts of humic acid.
[0072] The yield-increasing fertilizer synergistic aid can be obtained by uniformly mixing the above raw material components.
[0073] Example 4
[0074] The raw material components used in this embodiment are as follows: 45 parts of polyglutamic acid, 16 parts of mineral potassium humate, 1 part of triphenylsilanol, 5 parts of zinc sulfate, 2 parts of nano silicon, 10 parts of water retaining agent (5 parts each of sodium polyacrylate and ammonium polyacrylate), 14 parts of composite bacterial agent, 15 parts of amino acids (3 parts each of phenylalanine, methionine, arginine, leucine and serine), and 16 parts of humic acid.
[0075] The yield-increasing fertilizer synergistic aid can be obtained by uniformly mixing the above raw material components.
[0076] Example 5
[0077] The raw material components used in this embodiment are as follows: 50 parts of polyglutamic acid, 18 parts of mineral potassium humate, 5 parts of triphenylsilanol, 4 parts of zinc sulfate, 2 parts of nano silicon, 10 parts of water retaining agent (5 parts each of sodium polyacrylate and potassium polyacrylate), 12 parts of composite bacterial agent, 15 parts of amino acids (3 parts each of phenylalanine, methionine, arginine, leucine and serine), and 16 parts of humic acid.
[0078] The yield-increasing fertilizer synergistic aid can be obtained by uniformly mixing the above raw material components.
[0079] Comparative Example 1
[0080] Same as Example 1, except that polyglutamic acid was not added.
[0081] Comparative Example 2
[0082] The same as Example 1, except that mineral potassium humate was not added.
[0083] Comparative Example 3
[0084] The same as Example 1, except that no composite bacterial agent was added.
[0085] Comparative Example 4
[0086] The same as Example 1, except that triphenylsilanol was not added.
[0087] Performance Testing
[0088] 1. The crop planted in this test was potted rapeseed, and the base fertilizer was ordinary compound fertilizer (Yangfeng). 10 groups of experiments were designed, with no use of yield-increasing fertilizer synergistic aid as the blank group, and the other 9 groups were respectively using the fertilizer synergistic aids prepared by Examples 1 to 5 and Comparative Examples 1 to 4. Planting was carried out according to the conventional method, the fertilizer application rate was 25 kg / mu, and the amount of the yield-increasing fertilizer synergistic aid was 10% of the mass of the ordinary compound fertilizer. After harvest, 20 rapeseeds were randomly selected from each group to measure indicators such as plant height, root length, root activity and biomass. The measurement results are shown in Table 1.
[0089] Table 1 Growth indexes of rapeseed
[0090]
[0091] 2. The crop planted in this test is corn, and the base fertilizer is 5kg diammonium phosphate per mu, and 20kg / mu of heavy superphosphate. 10 groups of experiments were designed, with no yield-increasing fertilizer synergist as the blank group, and the other 9 groups were respectively using the fertilizer synergist prepared by Examples 1 to 5 and Comparative Examples 1 to 4, and planting was carried out according to the conventional method, and the amount of the yield-increasing fertilizer synergist was 20% of the mass of the base fertilizer. The yield was measured after the corn matured, and the measurement results are shown in Table 2.
[0092] Table 2 Results of corn yield and yield increase rate
[0093] category Average yield (kg / mu) Yield increase rate (%) Blank Group 696 —— Example 1 925 32.90 Example 2 914 31.32 Example 3 922 32.47 Example 4 903 29.74 Example 5 886 27.30 Comparative Example 1 784 12.64 Comparative Example 2 801 15.09 Comparative Example 3 792 13.79 Comparative Example 4 788 13.21
[0094] As can be seen from Table 1 and Table 2, the yield-increasing fertilizer synergistic aid provided by the present invention has significant advantages in increasing crop yield. In the prior art, although the use of fertilizers can provide the nutrients required for crop growth, the utilization efficiency of fertilizers does not always meet expectations. The present invention can effectively improve the utilization rate of fertilizers through specific synergistic aids, so that crops can fully absorb the nutrients in fertilizers, thereby promoting crop growth and increasing yields. In addition, the application of the yield-increasing fertilizer synergistic aid of the present invention on various crops shows obvious yield-increasing effects, providing strong support for agricultural production. In addition, the present invention achieves a significant improvement in fertilizer efficiency through the joint action of multiple components, has obvious economic, social and environmental benefits, and represents a new technology development trend in the field of fertilizer synergistic aids.
[0095] 3. In order to verify the effect of the yield-increasing fertilizer synergist on regulating the absorption of nitrogen by corn, a corn pot experiment was conducted, with Example 1 as the experimental group and Comparative Example 4 as the control group. The specifications of the flower pots used in the pot experiment were 15 cm × 20 cm:
[0096] (1) Soil from the test field was randomly selected, and the soil was mixed after being sieved through a 5 mm sieve. 5 kg of sieved soil was initially added to each pot for determination of relevant background physical and chemical properties, mainly total nitrogen, nitrate nitrogen and ammonium nitrogen in the soil (total nitrogen was digested with sulfuric acid and determined by the sodium salicylate method; nitrate nitrogen was extracted with potassium chloride and determined by ultraviolet spectrophotometry; ammonium nitrogen was extracted with potassium chloride and determined by indophenol blue colorimetry). The background physical and chemical values of the soil in the test field were determined as follows: total nitrogen 3.12 g / kg, nitrate nitrogen 0.36 g / kg, and ammonium nitrogen 5.22 g / kg.
[0097] (2) The corn seeds were sterilized and germinated indoors, and seeds with full grains were selected for sowing, with 2 seeds sown per pot. The plants were cultivated under natural light conditions, watered every 5 days to maintain a humidity of 70% for plant growth, and the base fertilizer was 0.1 g / kg diammonium phosphate and 0.3 g / kg heavy superphosphate per mu; the amount of the yield-increasing fertilizer synergist was 20% of the base fertilizer mass, and the same cultivation and management measures were adopted during the planting process of the corn plants.
[0098] (3) After sampling, the above-ground and underground parts of the corn were dried and then crushed and sieved. The total nitrogen content was determined by sulfuric acid digestion-sodium salicylate method. The results are shown in Table 3.
[0099] Table 3 Total nitrogen content determination results
[0100]
[0101] It can be seen from Table 3 that the nitrogen content of each part of corn is significantly increased by using the yield-increasing fertilizer synergistic adjuvant prepared by the present invention.
[0102] (4) After soil sampling, it was stored in a refrigerator at 3°C for the determination of subsequent indicators. The ammonium nitrogen content of the soil was determined by the sodium salicylate method; the nitrate nitrogen content was determined by the copper-zinc-hydrazine sulfate reduction method; the determination results are shown in Table 4.
[0103] Table 4 Determination results of ammonium nitrogen and nitrate nitrogen in soil
[0104] category Ammonium nitrogen (mg / kg) Nitrate nitrogen (mg / kg) Experimental Group 3.68 0.15 Control group 2.72 0.31
[0105] As shown in Table 4, compared with the original soil, the contents of ammonium nitrogen and nitrate nitrogen in the soil of the experimental group after planting decreased; compared with the control group, the content of ammonium nitrogen in the experimental group showed an increasing trend, while the content of nitrate nitrogen showed a decreasing trend.
[0106] In the present invention, triphenylsilanol is a form of organosilicon, which not only improves the agronomic efficiency of nitrogen, but also improves the photosynthesis and nutrient absorption of corn plants, enhances nitrogen utilization efficiency, and thus helps to reduce excessive nitrogen absorption.
[0107] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.
Claims
1. A yield-increasing fertilizer synergist, characterized in that: The composition comprises the following components in parts by weight: 30-50 parts of polyglutamic acid, 10-20 parts of mineral potassium humate, 1-5 parts of triphenylsilanol, 1-5 parts of zinc sulfate, 1-5 parts of nano silicon, 1-10 parts of water retaining agent, 10-20 parts of composite bacterial agent, 20-30 parts of amino acid, and 10-20 parts of humic acid.
2. The yield-increasing fertilizer synergist according to claim 1, characterized in that: The water retaining agent includes one or more of ammonium polyacrylate, sodium polyacrylate and potassium polyacrylate.
3. The yield-increasing fertilizer synergist according to claim 1, characterized in that: The composite bacterial agent comprises Bacillus subtilis and / or Bacillus licheniformis.
4. The yield-increasing fertilizer synergist according to claim 3, characterized in that: The number of viable bacteria in the composite bacterial agent is ≥5×109 cfu / g.
5. The yield-increasing fertilizer synergist according to claim 3, characterized in that: The amino acids include one or more of phenylalanine, arginine, leucine, methionine and serine.
6. The yield-increasing fertilizer synergist according to any one of claims 1 to 5, characterized in that: The preparation process of polyglutamic acid is as follows: The metal alkoxide is sequentially hydrolyzed, dried, and heat-treated to obtain an active catalyst, and L-glutamic acid and the active catalyst are mixed and then subjected to polymerization reaction to obtain polyglutamic acid; The polymerization reaction temperature is 80-150° C., the polymerization reaction pressure is ≤5 MPa, and the polymerization reaction time is 5-8 hours.
7. The yield-increasing fertilizer synergist according to claim 6, characterized in that: The preparation process of the mineral source potassium humate is as follows: The mineral-source humic acid is dissolved, neutralized, crystallized, filtered and dried in sequence to obtain mineral-source potassium humate.
8. The yield-increasing fertilizer synergist according to claim 3, characterized in that: The preparation process of the composite bacterial agent is as follows: The bacterial strains are activated, fermented, dried, screened and packaged in sequence to obtain a composite bacterial agent.