A method for producing all-element organic water-soluble fertilizer from Chinese herbal extracts

Abstract

This invention provides a method for preparing a complete-element organic water-soluble fertilizer from traditional Chinese medicine extracts, belonging to the field of fertilizer technology. The raw materials for preparing the complete-element organic water-soluble fertilizer, in addition to the traditional Chinese medicine extract, include molasses fermentation products, macro-elements, micro-elements, adjuvants, and ethylenediaminetetraacetic acid (EDTA). The addition of the traditional Chinese medicine extract enables the complete-element organic water-soluble fertilizer to achieve high quality and high yield when applied, resulting in higher crop yields and stronger disease resistance, overcoming the shortcomings of existing organic water-soluble fertilizers in terms of quality and yield. The traditional Chinese medicine extract is the key raw material, and its preparation involves extracting active ingredients from powders of Erythrina variegata leaves, Atractylodes macrocephala, Cnidium monnieri, and Centella asiatica. The preparation process incorporates enzymatic hydrolysis using cellulase and pectinase. Furthermore, this invention adjusts the timing of the traditional Chinese medicine additions and the extraction temperature to enhance the high-quality and high-yield effects.

Description

Technical Field

[0001] This invention belongs to the field of fertilizer technology, specifically relating to a method for preparing an all-element organic water-soluble fertilizer from traditional Chinese medicine extracts. Background Technology

[0002] Organic water-soluble fertilizers are a type of fertilizer that uses organic materials as its main raw material, dissolves in water, and can be applied to crops through various methods such as fertigation and drip irrigation. They combine the eco-friendliness of organic fertilizers with the convenience and high absorption efficiency of water-soluble fertilizers, and have been widely used in agriculture in recent years. Most existing organic water-soluble fertilizers are made from plant-derived or fermented materials. Molasses fermentation products, as a common organic raw material, are widely used in organic water-soluble fertilizer systems due to their stable source and good solubility.

[0003] From the perspective of actual production results, existing organic water-soluble fertilizers still have certain shortcomings in promoting crop yield. Their role is more reflected in improving crop growth and nutrient supply, with a relatively limited effect on promoting yield formation, making it difficult to fully support crops in achieving high-yield targets. At the same time, most organic water-soluble fertilizers still have limited comprehensive regulatory capabilities on crop health, failing to significantly alleviate disease problems, resulting in low overall improvement in crop disease resistance and a lack of reliable guarantees for production safety, ultimately hindering high-quality and high-yield production. Summary of the Invention

[0004] In view of this, the present invention provides a method for preparing an all-element organic water-soluble fertilizer from Chinese herbal extracts, aiming to solve the shortcomings of existing organic water-soluble fertilizers in terms of high quality and high yield.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A method for preparing an all-element organic water-soluble fertilizer from a traditional Chinese medicine extract, the method comprising the following steps: S1. Add ethylenediaminetetraacetic acid to the herbal extract, stir and mix for the first time to obtain material A; S2. Mix the molasses fermentation product, macro-elements, micro-elements and additives to obtain material B; S3. While stirring, add material A dropwise to material B. After the dropwise addition is complete, stir and mix for the second time, extrude and granulate, dry, and allow to cool naturally to room temperature.

[0006] In some embodiments, the mass ratio of the molasses ferment, the macroelements, the microelements, the herbal extract, the adjuvants, and the ethylenediaminetetraacetic acid is 45-50:20-25:5:16-20:7:0.7.

[0007] In some embodiments, the herbal extract is prepared by the following steps: Add Erythrina leaf powder, Atractylodes macrocephala powder, cellulase and pectinase to deionized water, stir and reflux for the first extraction, then add Cnidium monnieri powder and Centella asiatica powder, stir and reflux for the second extraction, reflux to inactivate enzymes, centrifuge, collect the supernatant, filter, collect the filtrate, concentrate, and cool naturally to room temperature.

[0008] The implementation scheme is further optimized in that the mass ratio of the deionized water, the Erythrina leaf powder, the Atractylodes macrocephala powder, the Cnidium monnieri powder, the Centella asiatica powder, the cellulase, and the pectinase is 280-300:2.5-3:2:1.8-2.3:1.4:0.1-0.14:0.1; the enzyme activity of the cellulase is 100-200 U / mg; and the enzyme activity of the pectinase is 50-100 U / mg.

[0009] To further optimize the implementation plan, the first stirring reflux extraction refers to stirring and refluxing at 43-50℃ for 45-55 minutes; the second stirring reflux extraction refers to stirring and refluxing at 70-75℃ for 30-35 minutes.

[0010] To further optimize the implementation plan, the temperature for reflux enzyme inactivation is 90-95℃ and the time is 10 minutes.

[0011] The implementation scheme is further optimized as follows: the centrifugation process conditions are: centrifugation temperature 25℃, rotation speed 10000rpm, and time 10-20min; the filtration accuracy is 1μm.

[0012] To further optimize the implementation plan, the concentration refers to concentrating to a solid content of 38-44 wt%; the concentration process conditions are distillation, heat source temperature of 48-50℃, and absolute pressure of 5 kPa.

[0013] In some embodiments, the first stirring and mixing refers to stirring at 22-34°C for 5-15 minutes; the second stirring and mixing refers to stirring at 22-34°C for 15-25 minutes.

[0014] In some embodiments, the macroelements include urea and potassium dihydrogen phosphate; the mass ratio of urea to potassium dihydrogen phosphate is 15-28:20-23; the microelements include EDTA chelated calcium, EDTA chelated magnesium, EDTA chelated iron, EDTA chelated zinc, EDTA chelated manganese, EDTA chelated copper, and sodium molybdate; the mass ratio of EDTA chelated calcium, EDTA chelated magnesium, EDTA chelated iron, EDTA chelated zinc, EDTA chelated manganese, EDTA chelated copper, and sodium molybdate is 3-4:1-1.2:1.5-2:0.5:1:0.5:0.1.

[0015] In some embodiments, the adjuvant includes citric acid, polyglutamic acid, and maltodextrin; the mass ratio of the citric acid, the polyglutamic acid, and the maltodextrin is 20-25:80-100:75.

[0016] In some embodiments, the operating conditions for adding the mixture while stirring are a dropping rate of 3-5 drops / s and a temperature of 22-34°C.

[0017] In some embodiments, the extrusion granulation process conditions are a granulation pressure of 0.3-0.4 MPa, a granulation temperature of 25°C, and a granulation particle size of 1.5-2 mm.

[0018] In some embodiments, the drying temperature is 40-50°C and the time is 30-45 minutes.

[0019] In some implementations, the all-element organic water-soluble fertilizer is diluted with water at a ratio of 1:700-800 before use.

[0020] The beneficial effects of this invention are as follows: (1) In the field of fertilizers, molasses fermentation is a common organic raw material that can provide crops with a variety of nutrients, and is therefore widely used in the preparation of organic water-soluble fertilizers. However, organic water-soluble fertilizers made from molasses fermentation as the main raw material still have shortcomings in terms of crop yield and disease resistance. Based on this background, the technical solution of the present invention is to introduce a traditional Chinese medicine extract to partially replace molasses fermentation and produce an all-element organic water-soluble fertilizer. The traditional Chinese medicine extract is prepared by extracting the active ingredients from Erythrina leaf powder, Atractylodes macrocephala powder, Cnidium monnieri powder and Centella asiatica powder. Erythrina leaf powder is rich in flavonoids and alkaloids, which can enhance the absorption of key elements such as nitrogen and phosphorus by crop leaves and promote the absorption of nutrients in the plant. The accumulation of nutrients in Atractylodes macrocephala powder helps to improve yield and stimulate the crop's own defense mechanisms, enhancing its tolerance to pathogen infection. The polysaccharides in Atractylodes macrocephala powder help optimize the rhizosphere environment, enhance root vitality, promote the crop's utilization of water and mineral nutrients, stabilize the growth process, and inhibit harmful microorganisms, thus improving the crop's disease resistance. The various active substances in Cnidium monnieri powder can inhibit the reproduction of pathogens in the soil, reduce disease pressure, and enhance the crop's resistance while promoting robust growth. Centella asiatica powder contains various trace active factors that promote efficient nutrient transport within the crop, support continuous nutrient accumulation, and its components can strengthen crop tissue structure and reduce the chance of disease infection.

[0021] (2) In the preparation of the herbal extract, the technical solution of the present invention introduces cellulase and pectinase and designs the feeding sequence and extraction temperature of the raw materials as a whole, so that the product, namely the herbal extract, has a better synergistic basis. Specifically, in the early stage of extraction, the powder of Erythrina leaf and the powder of Atractylodes macrocephala are fed at the same time and the extraction is controlled at a suitable enzyme activity temperature. The enzymatic hydrolysis is fully exerted, effectively destroying the cell wall and other structures, promoting the release of active substances, thereby increasing the proportion of effective components that can be absorbed and utilized by crops in the product. After a period of time, the powder of Cnidium monnieri and the powder of Centella asiatica are added as a whole, and the extraction temperature is increased accordingly, so that the system changes from being mainly promoted by enzymatic hydrolysis to being mainly promoted by temperature dissolution, adjusting the synergy of active substances from different sources in the same system, thereby strengthening the high-quality and high-yield effect of the all-element organic water-soluble fertilizer produced therefrom. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to embodiments. The specific embodiments described herein are for illustrative purposes only and are not intended to limit the invention in any way. Furthermore, descriptions of well-known technologies are omitted in the following description to avoid unnecessarily obscuring the concepts of this disclosure. Such technologies have also been described in many publications.

[0023] Unless otherwise defined, all technical and scientific terms used in this invention have the same meaning as commonly used in the field to which this invention pertains.

[0024] The present invention does not limit the source of the raw materials used. Unless otherwise specified, the raw materials used in the present invention are all commercially available products in this technical field. Some raw material information is shown in Table 1.

[0025] Table 1 Raw Material Information Table The powders of Erythrina leaves, Atractylodes macrocephala, Cnidium monnieri, and Centella asiatica were obtained by independently pulverizing Erythrina leaves, Atractylodes macrocephala, Cnidium monnieri, and Centella asiatica and passing them through a 50-mesh sieve.

[0026] A method for preparing an all-element organic water-soluble fertilizer from a traditional Chinese medicine extract, the method comprising the following steps: S1. Add ethylenediaminetetraacetic acid to the herbal extract and stir at 25°C for 10 minutes to obtain material A; S2. Mix the molasses fermentation product, macro-elements, micro-elements and additives to obtain material B; S3. Add material A dropwise to material B while stirring at 25°C, with a dropping rate of 4 drops / s. After the dropping is complete, stir at 25°C for 20 minutes to mix, then extrude and granulate at a granulation pressure of 0.3 MPa, a granulation temperature of 25°C, and a granulation particle size of 2 mm. Dry at 42°C for 30 minutes and allow to cool naturally to room temperature.

[0027] The mass ratio of the molasses ferment, the macroelements, the microelements, the herbal extract, the adjuvant, and the ethylenediaminetetraacetic acid is 48:22:5:16:7:0.7.

[0028] The macroelements include urea and potassium dihydrogen phosphate; the mass ratio of urea to potassium dihydrogen phosphate is 28:20; the microelements include EDTA chelated calcium, EDTA chelated magnesium, EDTA chelated iron, EDTA chelated zinc, EDTA chelated manganese, EDTA chelated copper, and sodium molybdate; the mass ratio of EDTA chelated calcium, EDTA chelated magnesium, EDTA chelated iron, EDTA chelated zinc, EDTA chelated manganese, EDTA chelated copper, and sodium molybdate is 3:1:1.5:0.5:1:0.5:0.1; the adjuvants include citric acid, polyglutamic acid, and maltodextrin; the mass ratio of citric acid, polyglutamic acid, and maltodextrin is 25:100:75.

[0029] The all-element organic water-soluble fertilizer should be diluted with water at a ratio of 1:700 before use.

[0030] The herbal extract is prepared through the following steps: Add Erythrina leaf powder, Atractylodes macrocephala powder, cellulase and pectinase to deionized water, stir and reflux at 50℃ for 45 min for extraction, then add Cnidium monnieri powder and Centella asiatica powder, stir and reflux at 75℃ for 30 min for extraction, reflux at 95℃ for 10 min to inactivate enzymes, centrifuge at 25℃, 10000 rpm for 10 min, collect the supernatant, filter with a filtration precision of 1 μm, collect the filtrate, concentrate to a solid content of 42 wt% (using distillation process, heat source temperature 50℃, absolute pressure 5 kPa), and cool naturally to room temperature.

[0031] The mass ratio of the deionized water, the Erythrina leaf powder, the Atractylodes macrocephala powder, the Cnidium monnieri powder, the Centella asiatica powder, the cellulase, and the pectinase is 300:3:2:2.3:1.4:0.1:0.1; the cellulase has an enzyme activity of 200 U / mg; and the pectinase has an enzyme activity of 50 U / mg.

[0032] Example 2 A method for preparing an all-element organic water-soluble fertilizer from a traditional Chinese medicine extract, the method comprising the following steps: S1. Add ethylenediaminetetraacetic acid to the herbal extract and stir at 28°C for 15 minutes to obtain material A; S2. Mix the molasses fermentation product, macro-elements, micro-elements and additives to obtain material B; S3. Add material A dropwise to material B while stirring at 28°C, with a dropping rate of 3 drops / s. After the dropping is complete, stir at 28°C for 25 minutes to mix, then extrude and granulate at a granulation pressure of 0.4 MPa, a granulation temperature of 25°C, and a granulation particle size of 2 mm. Dry at 50°C for 30 minutes and allow to cool naturally to room temperature.

[0033] The mass ratio of the molasses ferment, the macroelements, the microelements, the herbal extract, the adjuvant, and the ethylenediaminetetraacetic acid is 45:20:5:17:7:0.7.

[0034] The macroelements include urea and potassium dihydrogen phosphate; the mass ratio of urea to potassium dihydrogen phosphate is 24:20; the microelements include EDTA chelated calcium, EDTA chelated magnesium, EDTA chelated iron, EDTA chelated zinc, EDTA chelated manganese, EDTA chelated copper, and sodium molybdate; the mass ratio of EDTA chelated calcium, EDTA chelated magnesium, EDTA chelated iron, EDTA chelated zinc, EDTA chelated manganese, EDTA chelated copper, and sodium molybdate is 3.3:1.2:1.8:0.5:1:0.5:0.1; the adjuvants include citric acid, polyglutamic acid, and maltodextrin; the mass ratio of citric acid, polyglutamic acid, and maltodextrin is 24:85:75.

[0035] The all-element organic water-soluble fertilizer should be diluted with water at a ratio of 1:800 before use.

[0036] The herbal extract is prepared through the following steps: Add Erythrina leaf powder, Atractylodes macrocephala powder, cellulase and pectinase to deionized water, stir and reflux for 50 min at 46℃ for extraction, then add Cnidium monnieri powder and Centella asiatica powder, stir and reflux for 35 min at 75℃ for extraction, reflux at 95℃ for 10 min to inactivate enzymes, centrifuge at 25℃, 10000 rpm for 10 min, collect the supernatant, filter with a filtration precision of 1 μm, collect the filtrate, concentrate to a solid content of 44 wt% (using distillation process, heat source temperature 48℃, absolute pressure 5 kPa), and cool naturally to room temperature.

[0037] The mass ratio of the deionized water, the Erythrina leaf powder, the Atractylodes macrocephala powder, the Cnidium monnieri powder, the Centella asiatica powder, the cellulase, and the pectinase is 300:2.5:2:2:1.4:0.14:0.1; the cellulase has an enzyme activity of 200 U / mg; and the pectinase has an enzyme activity of 50 U / mg.

[0038] Example 3 A method for preparing an all-element organic water-soluble fertilizer from a traditional Chinese medicine extract, the method comprising the following steps: S1. Add ethylenediaminetetraacetic acid to the herbal extract and stir at 30°C for 10 minutes to obtain material A; S2. Mix the molasses fermentation product, macro-elements, micro-elements and additives to obtain material B; S3. Add material A dropwise to material B while stirring at 30°C, with a dropping rate of 5 drops / s. After the dropping is complete, stir at 30°C for 25 minutes to mix, then extrude and granulate at a granulation pressure of 0.3 MPa, a granulation temperature of 25°C, and a granulation particle size of 2 mm. Dry at 45°C for 35 minutes and allow to cool naturally to room temperature.

[0039] The mass ratio of the molasses ferment, the macroelements, the microelements, the herbal extract, the adjuvant, and the ethylenediaminetetraacetic acid is 50:23:5:20:7:0.7.

[0040] The macroelements include urea and potassium dihydrogen phosphate; the mass ratio of urea to potassium dihydrogen phosphate is 28:21; the microelements include EDTA chelated calcium, EDTA chelated magnesium, EDTA chelated iron, EDTA chelated zinc, EDTA chelated manganese, EDTA chelated copper, and sodium molybdate; the mass ratio of EDTA chelated calcium, EDTA chelated magnesium, EDTA chelated iron, EDTA chelated zinc, EDTA chelated manganese, EDTA chelated copper, and sodium molybdate is 3.6:1.2:2:0.5:1:0.5:0.1; the adjuvants include citric acid, polyglutamic acid, and maltodextrin; the mass ratio of citric acid, polyglutamic acid, and maltodextrin is 24:100:75.

[0041] The all-element organic water-soluble fertilizer should be diluted with water at a ratio of 1:750 before use.

[0042] The herbal extract is prepared through the following steps: Add Erythrina leaf powder, Atractylodes macrocephala powder, cellulase and pectinase to deionized water, stir and reflux for 45 min at 48℃, then add Cnidium monnieri powder and Centella asiatica powder, stir and reflux for 30 min at 75℃, then reflux at 90℃ for 10 min to inactivate the enzymes, centrifuge at 25℃, 10000 rpm for 20 min, collect the supernatant, filter with a filtration precision of 1 μm, collect the filtrate, concentrate to a solid content of 44 wt% (using distillation process, heat source temperature 50℃, absolute pressure 5 kPa), and cool naturally to room temperature.

[0043] The mass ratio of the deionized water, the Erythrina leaf powder, the Atractylodes macrocephala powder, the Cnidium monnieri powder, the Centella asiatica powder, the cellulase, and the pectinase is 300:2.7:2:2.1:1.4:0.12:0.1; the enzyme activity of the cellulase is 100 U / mg; the enzyme activity of the pectinase is 100 U / mg.

[0044] Comparative Example 1 This comparative example is the same as Example 3, except that the Erythrina leaf powder was replaced with Atractylodes macrocephala powder, Cnidium monnieri powder, and Centella asiatica powder in a mass ratio of 2:2.1:1.4 (Note: After the replacement, the preparation method of the herbal extract remains unchanged; only the Erythrina leaf powder is not added for extraction. The amount of other herbal powders needs to be increased accordingly. The same applies to subsequent comparative examples 2-4). Everything else remains the same.

[0045] Comparative Example 2 This comparative example is the same as Example 3, except that the Atractylodes macrocephala powder was replaced with Erythrina variegata leaf powder, Cnidium monnieri powder, and Centella asiatica powder in a mass ratio of 2.7:2.1:1.4. All other components remained the same.

[0046] Comparative Example 3 This comparative example is the same as Example 3, except that the Cnidium monnieri powder was replaced by Erythrina variegata leaf powder, Atractylodes macrocephala powder, and Centella asiatica powder in a mass ratio of 2.7:2:1.4. All other aspects remained unchanged.

[0047] Comparative Example 4 This comparative example is the same as Example 3, except that the Centella asiatica powder was replaced by Erythrina variegata leaf powder, Atractylodes macrocephala powder, and Cnidium monnieri powder in a mass ratio of 2.7:2:2.1. All other aspects remained unchanged.

[0048] Comparative Example 5 This comparative example is the same as Example 3, except that cellulase is replaced by pectinase of the same mass (Note: After the replacement, the preparation method of the herbal extract remains unchanged, except that cellulase is not added for extraction. For other enzymes, such as pectinase, the amount used only needs to be increased accordingly. The same applies to subsequent comparative example 6). Everything else remains the same.

[0049] Comparative Example 6 This comparative example is the same as Example 3, except that pectinase is replaced with cellulase of the same mass. Everything else remains the same.

[0050] Comparative Example 7 This comparative example is the same as Example 3, except that the extraction was changed from stirring and refluxing at 75°C for 30 min to stirring and refluxing at 48°C for 30 min. All other steps remain the same.

[0051] Comparative Example 8 This comparative example is the same as Example 3, except that the extraction was changed from stirring and refluxing at 48°C for 45 min to stirring and refluxing at 75°C for 45 min. All other steps remain the same.

[0052] Comparative Example 9 This comparative example is the same as Example 3, except that instead of adding Erythrina leaf powder, Atractylodes macrocephala powder, cellulase, and pectinase to deionized water, it is now added to deionized water along with Erythrina leaf powder, Atractylodes macrocephala powder, Cnidium monnieri powder, cellulase, and pectinase (Note: In this comparative example, Cnidium monnieri powder is added at the beginning of the extraction process and is not added again thereafter; the same applies to subsequent comparative examples 10-11). Everything else remains the same.

[0053] Comparative Example 10 This comparative example is the same as Example 3, except that instead of adding Erythrina leaf powder, Atractylodes macrocephala powder, cellulase, and pectinase to deionized water, it is now added to deionized water as Erythrina leaf powder, Atractylodes macrocephala powder, Centella asiatica powder, cellulase, and pectinase. All other steps remain the same.

[0054] Comparative Example 11 This comparative example is the same as Example 3, except that instead of adding Erythrina leaf powder, Atractylodes macrocephala powder, cellulase, and pectinase to deionized water, the ingredients are changed to Erythrina leaf powder, Atractylodes macrocephala powder, Cnidium monnieri powder, Centella asiatica powder, cellulase, and pectinase. All other ingredients remain the same.

[0055] Comparative Example 12 This comparative example is the same as Example 3, except that the herbal extract was replaced with an equal mass of 44wt% molasses fermentation aqueous solution. All other aspects remain unchanged.

[0056] Crop Experiments: I. Experimental Methods Crops: Italian lettuce; Fertilizer: All-element organic water-soluble fertilizer prepared in Example 3 and Comparative Examples 1-12; it needs to be diluted with water before application, and the dilution ratio is 1:750. Regional division: The area is divided into 13 trough cultivation zones, with each zone having a uniform substrate trough size and consistent substrate composition and properties; Planting method: After the Italian lettuce seedlings have been cultivated, they will be transplanted to various areas for planting. The row spacing and plant spacing will be 20cm×18cm, and the number of plants in each area will be 150. Fertilizer management: The prepared all-element organic water-soluble fertilizer was applied to 13 areas by drip irrigation. It was applied once at the time of transplanting, and then once every 7 days for a total of four times, with 15 mL per plant each time.

[0057] II. Statistics on yield and disease rate in the affected area Harvest on the 40th day after transplanting, weigh, and count the yield of the plot; screen out Italian lettuce with diseases, weigh, and calculate the weight percentage to reflect the disease rate (Note: any lettuce with disease needs to be screened out, regardless of the severity of the disease).

[0058] Table 2. Statistics on yield and disease rate of crop experiments in each plot. By comparing the data in Table 2, the all-element organic water-soluble fertilizer produced by this invention shows excellent performance, high yield in the plot, and proves that it can effectively promote crop growth. It also shows that the incidence of diseases is mild and the disease rate is low. It has the characteristics of high quality and high yield and has good application potential.

[0059] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention. Therefore, the scope of protection of this patent should be determined by the appended claims.

Claims

1. A method for preparing an all-element organic water-soluble fertilizer from a traditional Chinese medicine extract, characterized in that: The method includes the following steps: S1. Add ethylenediaminetetraacetic acid to the herbal extract, stir and mix for the first time to obtain material A; S2. Mix the molasses fermentation product, macro-elements, micro-elements and additives to obtain material B; S3. While stirring, add material A dropwise to material B. After the dropwise addition is complete, stir and mix for the second time, extrude and granulate, dry, and allow to cool naturally to room temperature.

2. The method for preparing an all-element organic water-soluble fertilizer from a traditional Chinese medicine extract according to claim 1, characterized in that: The mass ratio of the molasses ferment, the macroelements, the microelements, the herbal extract, the adjuvant, and the ethylenediaminetetraacetic acid is 45-50:20-25:5:16-20:7:0.

7.

3. The method for preparing a full-element organic water-soluble fertilizer from a traditional Chinese medicine extract according to claim 1, characterized in that: The herbal extract is prepared through the following steps: Add Erythrina leaf powder, Atractylodes macrocephala powder, cellulase and pectinase to deionized water, stir and reflux for the first extraction, then add Cnidium monnieri powder and Centella asiatica powder, stir and reflux for the second extraction, reflux to inactivate enzymes, centrifuge, collect the supernatant, filter, collect the filtrate, concentrate, and cool naturally to room temperature.

4. The method for preparing a full-element organic water-soluble fertilizer from a traditional Chinese medicine extract according to claim 3, characterized in that: The mass ratio of the deionized water, the Erythrina leaf powder, the Atractylodes macrocephala powder, the Cnidium monnieri powder, the Centella asiatica powder, the cellulase, and the pectinase is 280-300:2.5-3:2:1.8-2.3:1.4:0.1-0.14:0.1; the cellulase activity is 100-200 U / mg; and the pectinase activity is 50-100 U / mg.

5. The method for preparing an all-element organic water-soluble fertilizer from a traditional Chinese medicine extract according to claim 3, characterized in that: The first stirring reflux extraction refers to stirring and refluxing at 43-50℃ for 45-55 minutes; the second stirring reflux extraction refers to stirring and refluxing at 70-75℃ for 30-35 minutes.

6. The method for preparing an all-element organic water-soluble fertilizer from a traditional Chinese medicine extract according to claim 3, characterized in that: The concentration refers to concentrating to a solid content of 38-44 wt%.

7. The method for preparing an all-element organic water-soluble fertilizer from a traditional Chinese medicine extract according to claim 1, characterized in that: The first mixing refers to mixing at 22-34℃ for 5-15 minutes; the second mixing refers to mixing at 22-34℃ for 15-25 minutes.

8. The method for preparing an all-element organic water-soluble fertilizer from a traditional Chinese medicine extract according to claim 1, characterized in that: The macroelements include urea and potassium dihydrogen phosphate; the mass ratio of urea to potassium dihydrogen phosphate is 15-28:20-23; the microelements include EDTA chelated calcium, EDTA chelated magnesium, EDTA chelated iron, EDTA chelated zinc, EDTA chelated manganese, EDTA chelated copper, and sodium molybdate; the mass ratio of EDTA chelated calcium, EDTA chelated magnesium, EDTA chelated iron, EDTA chelated zinc, EDTA chelated manganese, EDTA chelated copper, and sodium molybdate is 3-4:1-1.2:1.5-2:0.5:1:0.5:0.

1.

9. The method for preparing an all-element organic water-soluble fertilizer from a traditional Chinese medicine extract according to claim 1, characterized in that: The adjuvants include citric acid, polyglutamic acid, and maltodextrin; the mass ratio of citric acid, polyglutamic acid, and maltodextrin is 20-25:80-100:

75.

10. The method for preparing an all-element organic water-soluble fertilizer from a traditional Chinese medicine extract according to claim 1, characterized in that: The extrusion granulation process conditions are: granulation pressure 0.3-0.4 MPa, granulation temperature 25℃, and granulation particle size 1.5-2 mm.

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