Compound microorganism water-soluble fertilizer for tomatoes and preparation method of compound microorganism water-soluble fertilizer

Abstract

The invention relates to the technical field of agricultural fertilizers, and particularly discloses a compound microorganism water-soluble fertilizer for tomatoes and a preparation method. Comprising the following components in percentage by mass: bacillus subtilis, bacillus licheniformis, bacillus mucilaginosus, trichoderma harzianum, photosynthetic bacteria, calcium nitrate, ammonium nitrate, potassium nitrate, urea, ammonium sulfate, a chelated magnesium fertilizer, a chelated calcium fertilizer, polyglutamic acid, humic acid, potassium fulvate, water-soluble potassium silicate, a wetting dispersant and a plant growth regulator. The microbial liquid can decompose organic matters, release nutrients, improve the utilization rate of the fertilizer and reduce the use amount of chemical fertilizers, and the microbial liquid can inhibit the occurrence of soil-borne diseases and reduce the influence of plant diseases and insect pests on the tomatoes; the compound microorganism water-soluble fertilizer has remarkable effects of promoting tomato growth, improving the yield and quality and improving the soil environment.

Description

Technical Field

[0001] The present invention relates to the technical field of agricultural fertilizers, and particularly to a compound microbial water-soluble fertilizer for tomatoes and a preparation method thereof. Background Art

[0002] At present, tomato blossom-end rot, also known as stem-end rot, is one of the common diseases of tomatoes, especially seriously harmful in sandy loam areas along the coast (rivers) and in dry years. When the disease occurs severely, it often causes black spots and rot of the fruits, directly affecting the yield and quality. Due to the insufficient activity of foliar fertilizers and the unstable supply of irrigation water in some areas, the transpiration of tomato plants is weak, and the effective elements in the fertilizers cannot reach the organs that need the elements with water. Therefore, it is often necessary to increase the fertilizer application rate or the frequency of fertilizer use to enhance the effect, which not only wastes fertilizer resources but also damages the farmland ecological environment to a certain extent.

[0003] The prior art CN103467198B provides a special foliar compound fertilizer for tomatoes and a preparation method thereof. The preparation process of the foliar compound fertilizer is simple and the cost is low. It combines the effective microorganism technology with the compound fertilizer technology, effectively couples fertilizers such as potassium nitrate, calcium chloride, and calcium nitrate, and ferments them with EM as the carrier. On the one hand, the nutrition is balanced, promoting the growth and development of tomato plants and increasing the tomato yield. On the other hand, it can greatly reduce the incidence of tomato blossom-end rot.

[0004] However, in the prior art, the excessive use of compound fertilizers will cause damage to the soil and farmland, seriously affecting the soil fertility. Summary of the Invention

[0005] The purpose of the present invention is to provide a compound microbial water-soluble fertilizer for tomatoes and a preparation method thereof, aiming to solve the technical problem that the excessive use of compound fertilizers in the prior art will cause damage to the soil and farmland, seriously affecting the soil fertility.

[0006] To achieve the above purpose, a compound microbial water-soluble fertilizer for tomatoes adopted by the present invention includes the following mass fractions:

[0007] 10 - 15 parts of Bacillus subtilis, 10 - 15 parts of Bacillus licheniformis, 10 - 15 parts of Bacillus mucilaginosus, 10 - 15 parts of Trichoderma harzianum, 10 - 15 parts of photosynthetic bacteria, 15 - 20 parts of calcium nitrate, 15 - 20 parts of ammonium nitrate, 8 - 10 parts of potassium nitrate, 10 - 13 parts of urea, 7 - 9 parts of ammonium sulfate, 3 - 5 parts of chelated magnesium fertilizer, 3 - 5 parts of chelated calcium fertilizer, 0.5 - 1.0 part of polyglutamic acid, 5 - 10 parts of humic acid, 2 - 5 parts of potassium humate, 1 - 3 parts of water-soluble potassium silicate, 0.3 - 1.0 part of wetting and dispersing agent, and 0.01 - 0.03 part of plant growth regulator.

[0008] Among them, the wetting dispersant includes any one of an anionic wetting dispersant, a cationic wetting dispersant, a non-ionic wetting dispersant, an amphoteric wetting dispersant, and a polymeric hyperdispersant.

[0009] Among them, the anionic wetting dispersant includes any one or a combination of sodium oleate, carboxylate, sulfate ester salt, and sulfonate.

[0010] Among them, the cationic wetting dispersant includes any one or a combination of amine salts, quaternary ammonium salts, and pyridinium salts.

[0011] Among them, the non-ionic wetting dispersant includes any one or a combination of higher fatty alcohols, alkylphenols, fatty acids, fatty amines, and oils and fats.

[0012] Among them, the plant growth regulator includes any one or a combination of indoleacetic acid, indolebutyric acid, naphthylacetic acid, gibberellic acid, 6-benzyladenine, kinetin, zeatin, abscisic acid, ethephon, chlormequat chloride, paclobutrazol, salicylic acid, and jasmonic acid.

[0013] The present invention also provides a preparation method for a compound microbial water-soluble fertilizer for tomatoes, for preparing a compound microbial water-soluble fertilizer for tomatoes as described above, including the following steps:

[0014] Weigh calcium nitrate, ammonium nitrate, potassium nitrate, urea, ammonium sulfate, chelated magnesium fertilizer, chelated calcium fertilizer, polyglutamic acid, humic acid, potassium humate, water-soluble potassium silicate, wetting dispersant, and plant growth regulator according to the ratio and mix them evenly;

[0015] Culture Bacillus subtilis, Bacillus licheniformis, Bacillus mucilaginosus, Trichoderma harzianum, and photosynthetic bacteria respectively to make the viable count reach 1×10^10 CFU / mL;

[0016] Mix the cultured microbial bacterial liquid with the fertilizer to ensure uniform distribution;

[0017] Put the mixture into a flash dryer for drying, control the inlet air temperature at 120 - 180 °C, the outlet air temperature at 70 - 90 °C, and the water content after drying at 0.5 - 5.0%;

[0018] Thus, the preparation of the compound microbial water-soluble fertilizer is completed.

[0019] A compound microbial water-soluble fertilizer for tomatoes and its preparation method. The microbial inoculum in the fertilizer can promote the formation of soil aggregate structure, enhance soil aeration and water retention, create a good soil environment for crop growth. The microbial inoculum can decompose organic matter, release nutrients, improve fertilizer utilization rate, reduce the amount of chemical fertilizers used. The beneficial bacteria in the microbial inoculum can secrete plant growth regulating substances, enhance the disease resistance and stress resistance of plants, reduce the use of chemical fertilizers, reduce soil pollution and groundwater pollution, which is in line with the development direction of green agriculture. The compound microbial water-soluble fertilizer can significantly increase the plant height, stem diameter and number of leaves of tomatoes, promote the overall growth of plants. The organic matter and microbial inoculum in the fertilizer can increase the soluble sugar, vitamin C and lycopene content of tomato fruits, improve fruit quality. The microbial inoculum can inhibit the occurrence of soil-borne diseases, reduce the impact of pests and diseases on tomatoes. Long-term use of the compound microbial water-soluble fertilizer can improve the soil microbial community structure, reduce continuous cropping obstacles, and provide guarantee for the continuous high yield of tomatoes. The compound microbial water-soluble fertilizer has significant effects in promoting the growth of tomatoes, increasing yield and quality, and improving the soil environment. Brief Description of the Drawings

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0021] Figure 1 It is a flow chart of the steps of the preparation method of a compound microbial water-soluble fertilizer for tomatoes of the present invention.

[0022] Figure 2 It is a flow chart of the cultivation steps of the microbial inoculant of the present invention. Detailed Embodiments

[0023] The present invention provides a compound microbial water-soluble fertilizer for tomatoes, including the following mass fractions:

[0024] Bacillus subtilis 10 - 15 parts, Bacillus licheniformis 10 - 15 parts, Bacillus mucilaginosus 10 - 15 parts, Trichoderma harzianum 10 - 15 parts, photosynthetic bacteria 10 - 15 parts, calcium nitrate 15 - 20 parts, ammonium nitrate 15 - 20 parts, potassium nitrate 8 - 10 parts, urea 10 - 13 parts, ammonium sulfate 7 - 9 parts, chelated magnesium fertilizer 3 - 5 parts, chelated calcium fertilizer 3 - 5 parts, polyglutamic acid 0.5 - 1.0 part, humic acid 5 - 10 parts, potassium humate 2 - 5 parts, water-soluble potassium silicate 1 - 3 parts, wetting and dispersing agent 0.3 - 1.0 part, and plant growth regulator 0.01 - 0.03 part.

[0025] In this embodiment, the microbial inoculum in the fertilizer can promote the formation of soil aggregate structure, enhance soil aeration and water retention, create a good soil environment for crop growth, the microbial inoculum can decompose organic matter, release nutrients, improve fertilizer utilization rate, reduce the amount of chemical fertilizers used, the beneficial bacteria in the microbial inoculum can secrete plant growth regulating substances, enhance the disease resistance and stress resistance of plants, reduce the use of chemical fertilizers, reduce soil pollution and groundwater pollution, which is in line with the development direction of green agriculture. The compound microbial water-soluble fertilizer can significantly increase the plant height, stem diameter and number of leaves of tomatoes, promote the overall growth of plants. The organic matter and microbial inoculum in the fertilizer can increase the contents of soluble sugar, vitamin C and lycopene in tomato fruits, improve fruit quality. The microbial inoculum can inhibit the occurrence of soil-borne diseases, reduce the impact of pests and diseases on tomatoes. Long-term use of the compound microbial water-soluble fertilizer can improve the soil microbial community structure, reduce continuous cropping obstacles, and provide guarantee for the continuous high yield of tomatoes. The compound microbial water-soluble fertilizer has significant effects in promoting tomato growth, increasing yield and quality, and improving soil environment.

[0026] Further, the wetting dispersant includes any one of an anionic wetting dispersant, a cationic wetting dispersant, a non-ionic wetting dispersant, an amphoteric wetting dispersant, and a polymeric hyperdispersant.

[0027] In this embodiment, the anionic wetting dispersant can reduce the liquid surface tension, make the liquid better cover the solid surface, prevent particle re-aggregation through electrostatic repulsion, and improve the stability of the system. The cationic wetting dispersant stabilizes the suspended state of fine particles by changing the surface charge property of the particles. The non-ionic wetting dispersant is not affected by the pH value of the solution, has strong stability, and improves the wettability and dispersibility of the liquid. The amphoteric wetting dispersant is applicable to various systems and has strong flexibility. The polymeric hyperdispersant provides long-term storage stability through the interaction of the anchoring groups with pigments and resins.

[0028] Further, the anionic wetting dispersant includes any one or a combination of sodium oleate, carboxylate, sulfate ester salt, and sulfonate.

[0029] In this embodiment, the anionic wetting dispersant can reduce the liquid surface tension, make the liquid better cover the solid surface, prevent particle re-aggregation through electrostatic repulsion, improve the stability of the system, and can improve the flatness and gloss of the coating.

[0030] Further, the cationic wetting dispersant includes any one or a combination of amine salts, quaternary ammonium salts, and pyridinium salts.

[0031] In this embodiment, the suspended state of fine particles is stabilized by changing the surface charge property of the particles.

[0032] Furthermore, the non-ionic wetting dispersant includes any one or a combination of high-carbon fatty alcohols, alkylphenols, fatty acids, fatty amines, and oils and fats.

[0033] In this embodiment, it is not affected by the pH value of the solution, has strong stability, improves the wettability and dispersibility of the liquid, has strong flexibility in use, and when used in combination with other dispersants, it can be used as an emulsifier or wetting agent.

[0034] Furthermore, the plant growth regulator includes any one or a combination of indoleacetic acid, indolebutyric acid, naphthaleneacetic acid, gibberellic acid, 6-benzyladenine, kinetin, zeatin, abscisic acid, ethephon, chlormequat chloride, paclobutrazol, salicylic acid, and jasmonic acid.

[0035] In this embodiment, the plant growth regulator can promote the growth of plants, including promoting cell division, elongation, and differentiation, thereby increasing the yield and quality of crops. The plant growth regulator can enhance the adaptability of plants to adversity by regulating the physiological processes of plants. The plant growth regulator can improve the quality of crops. The plant growth regulator can regulate the flowering time and fruiting rate of plants, prevent flower and fruit drop, and increase the fruit setting rate. The plant growth regulator can control the plant type, thereby improving the lodging resistance of crops. The plant growth regulator can break the dormancy of seeds or buds and promote germination. The plant growth regulator can improve the photosynthesis efficiency of plants, increase the utilization of light energy by plants, thereby promoting the growth and development of plants. The plant growth regulator can promote the rooting of plants and improve the survival rate of cuttings.

[0036] Please refer to Figure 1 and Figure 2 , the present invention also provides a preparation method of a compound microbial water-soluble fertilizer for tomatoes, for preparing a compound microbial water-soluble fertilizer for tomatoes as described above, including the following steps:

[0037] S1: Weigh calcium nitrate, ammonium nitrate, potassium nitrate, urea, ammonium sulfate, chelated magnesium fertilizer, chelated calcium fertilizer, polyglutamic acid, humic acid, potassium humate, water-soluble potassium silicate, wetting dispersant, and plant growth regulator according to the ratio and mix them evenly;

[0038] S2: Cultivate Bacillus subtilis, Bacillus licheniformis, Bacillus mucilaginosus, Trichoderma harzianum, and photosynthetic bacteria respectively to make the viable count reach 1×10^10 CFU / mL;

[0039] S3: Mix the cultivated microbial bacterial liquid with the fertilizer to ensure uniform distribution;

[0040] S4: Put the mixture into a flash dryer for drying, control the inlet air temperature at 120 - 180 °C, the outlet air temperature at 70 - 90 °C, and the moisture content after drying at 0.5 - 5.0%;

[0041] S5: Thus, the preparation of the compound microbial water-soluble fertilizer is completed.

[0042] Furthermore, the cultivation of the microbial inoculum includes the following steps:

[0043] S201: Prepare a liquid medium using a carbon source, a nitrogen source, inorganic salts, and water;

[0044] S202: After stirring the liquid medium evenly, adjust the pH value. The pH value of the bacterial medium is 7.0 - 7.5, and the pH value of the mold medium is 5.0 - 6.0;

[0045] S203: Dispense the medium into a sterile container and sterilize it using high-pressure steam. Sterilize at a temperature of 120°C and a pressure of 100 kPa for 20 - 30 minutes;

[0046] S204: Use the sterilized medium to culture the bacterial strain for 24 - 72 hours until the bacterial liquid concentration reaches 1×10^10 CFU / mL.

[0047] Example 1

[0048] The present invention also provides a preparation method for a compound microbial water-soluble fertilizer for tomatoes. To prepare a compound microbial water-soluble fertilizer for tomatoes as described above, it includes the following steps:

[0049] Weigh 15 parts of calcium nitrate, 15 parts of ammonium nitrate, 8 parts of potassium nitrate, 10 parts of urea, 7 parts of ammonium sulfate, 3 parts of chelated magnesium fertilizer, 3 parts of chelated calcium fertilizer, 0.5 part of polyglutamic acid, 5 parts of humic acid, 2 parts of potassium humate, 1 part of water-soluble potassium silicate, 0.3 part of a wetting and dispersing agent, and 0.01 part of a plant growth regulator according to the ratio and mix them evenly;

[0050] Culture 10 parts of Bacillus subtilis, 10 parts of Bacillus licheniformis, 10 parts of Bacillus mucilaginosus, 10 parts of Trichoderma harzianum, and 10 parts of photosynthetic bacteria respectively to make the viable count reach 1×10^10 CFU / mL;

[0051] Mix the cultured microbial bacterial liquid with the fertilizer to ensure uniform distribution;

[0052] Put the mixture into a flash dryer for drying, control the inlet air temperature at 120°C, the outlet air temperature at 70°C, and the water content after drying is 0.5%;

[0053] Thus, the preparation of the compound microbial water-soluble fertilizer is completed.

[0054] The microbial inoculum in the fertilizer can promote the formation of soil aggregate structure, enhance soil aeration and water retention, create a good soil environment for crop growth. The microbial inoculum can decompose organic matter, release nutrients, improve fertilizer utilization rate, reduce the amount of chemical fertilizer used. The beneficial bacteria in the microbial inoculum can secrete plant growth regulating substances, enhance the disease resistance and stress resistance of plants, reduce the use of chemical fertilizers, reduce soil pollution and groundwater pollution, which is in line with the development direction of green agriculture. The compound microbial water-soluble fertilizer can significantly increase the plant height, stem diameter and number of leaves of tomatoes, promote the overall growth of plants. The organic matter and microbial inoculum in the fertilizer can increase the soluble sugar, vitamin C and lycopene content of tomato fruits, improve fruit quality. The microbial inoculum can inhibit the occurrence of soil-borne diseases, reduce the impact of pests and diseases on tomatoes. Long-term use of the compound microbial water-soluble fertilizer can improve the soil microbial community structure, reduce continuous cropping obstacles, and provide guarantee for the continuous high yield of tomatoes. The compound microbial water-soluble fertilizer has significant effects in promoting tomato growth, increasing yield and quality, and improving soil environment.

[0055] Example 2,

[0056] The present invention also provides a preparation method of a compound microbial water-soluble fertilizer for tomatoes. To prepare a compound microbial water-soluble fertilizer for tomatoes as described above, the following steps are included:

[0057] Weigh 20 parts of calcium nitrate, 20 parts of ammonium nitrate, 10 parts of potassium nitrate, 13 parts of urea, 9 parts of ammonium sulfate, 5 parts of chelated magnesium fertilizer, 5 parts of chelated calcium fertilizer, 1.0 part of polyglutamic acid, 10 parts of humic acid, 5 parts of potassium humate, 3 parts of water-soluble potassium silicate, 1.0 part of wetting and dispersing agent and 0.03 part of plant growth regulator according to the proportion and mix them evenly;

[0058] Cultivate 15 parts of Bacillus subtilis, 15 parts of Bacillus licheniformis, 15 parts of Bacillus mucilaginosus, 15 parts of Trichoderma harzianum, and 15 parts of photosynthetic bacteria respectively to make the viable bacteria count reach 1×10^10 CFU / mL;

[0059] Mix the cultured microbial inoculum with the fertilizer to ensure uniform distribution;

[0060] Put the mixture into a flash dryer for drying, control the inlet air temperature at 180 °C, the outlet air temperature at 90 °C, and the water content after drying is 5.0%;

[0061] Thus, the preparation of the compound microbial water-soluble fertilizer is completed.

[0062] The microbial inoculum in the fertilizer can promote the formation of soil aggregate structure, enhance soil aeration and water retention, create a good soil environment for crop growth. The microbial inoculum can decompose organic matter, release nutrients, improve fertilizer utilization rate, reduce the amount of chemical fertilizer used. The beneficial bacteria in the microbial inoculum can secrete plant growth regulating substances, enhance the disease resistance and stress resistance of plants, reduce the use of chemical fertilizers, reduce soil pollution and groundwater pollution, which is in line with the development direction of green agriculture. The compound microbial water-soluble fertilizer can significantly increase the plant height, stem diameter and number of leaves of tomatoes, promote the overall growth of plants. The organic matter and microbial inoculum in the fertilizer can increase the soluble sugar, vitamin C and lycopene content of tomato fruits, improve fruit quality. The microbial inoculum can inhibit the occurrence of soil-borne diseases, reduce the impact of pests and diseases on tomatoes. Long-term use of the compound microbial water-soluble fertilizer can improve the soil microbial community structure, reduce continuous cropping obstacles, and provide guarantee for the continuous high yield of tomatoes. The compound microbial water-soluble fertilizer has significant effects in promoting tomato growth, increasing yield and quality, and improving soil environment.

[0063] Example 3

[0064] The present invention also provides a preparation method of a compound microbial water-soluble fertilizer for tomatoes. To prepare a compound microbial water-soluble fertilizer for tomatoes as described above, the following steps are included:

[0065] Weigh 17 parts of calcium nitrate, 17 parts of ammonium nitrate, 9 parts of potassium nitrate, 11 parts of urea, 8 parts of ammonium sulfate, 4 parts of chelated magnesium fertilizer, 4 parts of chelated calcium fertilizer, 0.7 part of polyglutamic acid, 7 parts of humic acid, 3 parts of potassium humate, 2 parts of water-soluble potassium silicate, 0.8 part of wetting and dispersing agent and 0.02 part of plant growth regulator according to the proportion and mix them evenly;

[0066] Culture 12.5 parts of Bacillus subtilis, 12.5 parts of Bacillus licheniformis, 12.5 parts of Bacillus mucilaginosus, 12.5 parts of Trichoderma harzianum, and 12.5 parts of photosynthetic bacteria respectively to make the viable count reach 1×10^10 CFU / mL;

[0067] Mix the cultured microbial inoculum with the fertilizer to ensure uniform distribution;

[0068] Put the mixture into a flash dryer for drying, control the inlet air temperature at 150 °C, the outlet air temperature at 80 °C, and the moisture content after drying at 3.5%;

[0069] Thus, the preparation of the compound microbial water-soluble fertilizer is completed.

[0070] The microbial inoculum in the fertilizer can promote the formation of soil aggregate structure, enhance soil aeration and water retention, and create a good soil environment for crop growth. The microbial inoculum can decompose organic matter, release nutrients, improve fertilizer utilization rate, reduce the amount of chemical fertilizer used. The beneficial bacteria in the microbial inoculum can secrete plant growth regulating substances, enhance the disease resistance and stress resistance of plants, reduce the use of chemical fertilizers, and reduce soil pollution and groundwater pollution, which is in line with the development direction of green agriculture. The compound microbial water-soluble fertilizer can significantly increase the plant height, stem diameter and number of leaves of tomatoes, and promote the overall growth of plants. The organic matter and microbial inoculum in the fertilizer can increase the soluble sugar, vitamin C and lycopene content of tomato fruits, and improve the fruit quality. The microbial inoculum can inhibit the occurrence of soil-borne diseases and reduce the impact of pests and diseases on tomatoes. Long-term use of the compound microbial water-soluble fertilizer can improve the soil microbial community structure, reduce continuous cropping obstacles, and provide guarantee for the continuous high yield of tomatoes. The compound microbial water-soluble fertilizer has significant effects in promoting tomato growth, increasing yield and quality, and improving soil environment.

[0071] The above-disclosed is only a preferred embodiment of the present invention. Of course, it cannot be used to limit the scope of the rights of the present invention. Those of ordinary skill in the art can understand all or part of the processes of implementing the above embodiments, and the equivalent changes made according to the claims of the present invention still fall within the scope covered by the invention.

Claims

1. A composite microbial water-soluble fertilizer for tomatoes, characterized in that: The following quality scores are included: 10-15 parts of Bacillus subtilis, 10-15 parts of Bacillus licheniformis, 10-15 parts of Bacillus gelatinus, 10-15 parts of Trichoderma harzianum, 10-15 parts of photosynthetic bacteria, 15-20 parts of calcium nitrate, 15-20 parts of ammonium nitrate, 8-10 parts of potassium nitrate, 10-13 parts of urea, 7-9 parts of ammonium sulfate, 3-5 parts of chelated magnesium fertilizer, 3-5 parts of chelated calcium fertilizer, 0.5-1.0 parts of polyglutamic acid, 5-10 parts of humic acid, 2-5 parts of potassium fulvic acid, 1-3 parts of water-soluble potassium silicate, 0.3-1.0 parts of wetting dispersant and 0.01-0.03 parts of plant growth regulator.

2. A composite microbial water-soluble fertilizer for tomatoes according to claim 1, characterized in that: The wetting and dispersing agent includes any one of anionic wetting and dispersing agents, cationic wetting and dispersing agents, nonionic wetting and dispersing agents, amphoteric wetting and dispersing agents, and polymeric super dispersants.

3. A composite microbial water-soluble fertilizer for tomatoes as claimed in claim 2, characterized in that: The anionic wetting and dispersing agent includes any one or more combinations of sodium oleate, carboxylates, sulfate ester salts and sulfonates.

4. A composite microbial water-soluble fertilizer for tomatoes as claimed in claim 2, characterized in that: The cationic wetting and dispersing agent includes any one or more combinations of amine salts, quaternary ammonium salts and pyridinium salts.

5. A composite microbial water-soluble fertilizer for tomatoes as claimed in claim 2, characterized in that: The nonionic wetting and dispersing agent includes any one or more combinations of high-carbon fatty alcohols, alkylphenols, fatty acids, fatty amines and oils.

6. A composite microbial water-soluble fertilizer for tomatoes as claimed in claim 2, characterized in that: The plant growth regulator is any one or more combinations of indoleacetic acid, indolebutyric acid, naphthylacetic acid, gibberellic acid, 6-benzyladenine, kinetin, zeatin, abscisic acid, ethephon, chlormequat, paclobutrazol, salicylic acid and jasmonic acid.

7. A method for preparing a composite microbial water-soluble fertilizer for tomatoes, comprising preparing the composite microbial water-soluble fertilizer for tomatoes as claimed in claim 1, characterized in that: The steps include: Calcium nitrate, ammonium nitrate, potassium nitrate, urea, ammonium sulfate, chelated magnesium fertilizer, chelated calcium fertilizer, polyglutamic acid, humic acid, potassium humate, water-soluble potassium silicate, wetting dispersant and plant growth regulator are respectively loaded and mixed evenly according to the proportion; Bacillus subtilis, Bacillus licheniformis, Bacillus gelatinus, Trichoderma harzianum and photosynthetic bacteria were cultured separately to make their viable bacterial count reach 1×10^10 CFU / mL; Mix the cultured microbial solution with the fertilizer to ensure even distribution; The mixture is placed in a flash dryer for drying, the air inlet temperature is controlled to be 120-180°C, the air outlet temperature is controlled to be 70-90°C, and the moisture content after drying is 0.5-5.0%; The preparation of the composite microbial water-soluble fertilizer is now completed.

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