Soil fertility element for soil improvement

Abstract

A soil fertility element for soil improvement belongs to the field of soil improvement and comprises 4-6 parts of blue algae oligosaccharide, 2-4 parts of burdock oligosaccharide, 1-3 parts of morinda officinalis oligosaccharide, 6-8 parts of complex microbial inoculant gel, 3-5 parts of a composite microelement chelating preparation, 2-3 parts of humic acid, 2-3 parts of sepiolite fabric, 4-6 parts of actinolite, 0.5-1 part of chitin and 0.4-0.8 part of gamma aminobutyric acid. According to the invention, all the components have a synergistic effect, and exert power from multiple aspects of soil structure improvement, fertility improvement, microbial balance adjustment, harmful substance adsorption, crop growth promotion and the like, so that the soil environment is effectively improved, and the soil improvement efficiency is improved.

Description

Technical Field

[0001] This invention belongs to the field of soil improvement, specifically a soil-enhancing agent for soil improvement. Background Technology

[0002] In modern agricultural production, chemical fertilizers are used for a long time to increase crop yields. However, excessive use of chemical fertilizers can lead to problems such as soil compaction, poor soil aeration and permeability, difficulty in root extension, impaired crop absorption of water and nutrients, continuous decline in soil organic matter content, and gradual decline in soil fertility, failing to provide sufficient nutritional support for crop growth. Furthermore, soil acidification and salinization are becoming increasingly prominent, damaging the soil's micro-ecological environment, inhibiting the activity of beneficial microorganisms, and consequently exacerbating crop diseases and pests, severely impacting yield and quality. Current soil improvement practices mostly employ single-component amendments. Soil conditioners can be applied using methods such as simply applying lime to adjust soil pH or relying solely on farmyard manure to supplement organic matter. However, these methods have significant limitations: single-component conditioners often only address specific soil problems (such as acidification) and cannot comprehensively solve complex issues such as soil compaction, fertility decline, and microbial imbalance. While traditional organic fertilizers have relatively comprehensive nutrient content, their nutrient release is slow and uneven, resulting in a long improvement cycle. They are also difficult to precisely replenish specific micronutrients and functional substances lacking in the soil, and their retention and efficiency in the soil need to be improved. Summary of the Invention

[0003] This invention provides a soil-enhancing agent to address the problems in the prior art.

[0004] This invention is achieved through the following technical solution: A soil-improving agent comprises: 4-6 parts of cyanobacterial oligosaccharides, 2-4 parts of burdock oligosaccharides, 1-3 parts of Morinda officinalis oligosaccharides, 6-8 parts of compound microbial agent gel, 3-5 parts of compound trace element chelate preparation, 2-3 parts of humic acid, 2-3 parts of sepiolite, 4-6 parts of actinolite, 0.5-1 part of chitin, and 0.4-0.8 parts of γ-aminobutyric acid.

[0005] The method for preparing the composite soil amendment gel, as described above, includes the following steps: Step 1: Add the compound bacterial agent to deionized water to form a uniform suspension; Step 2: Add sodium alginate solution to the suspension in Step 1 and continue mixing to obtain a mixture; Step 3: Add the mixed solution dropwise into the calcium chloride solution; Step 4: The filtered granules are dried to obtain a composite soil amendment gel.

[0006] As described above, the soil-improving agent, specifically the compound microbial agent in step 1, comprises the following components in parts by weight: 4-6 parts of Chaetomium globosum, 3-4 parts of Trichoderma longifolium, and 2-3 parts of Microbacterium cirrhosa.

[0007] As described above, in step 1, the mass ratio of the compound microbial agent to deionized water is 1:4-6, the mixing speed is 80-120 r / min, the mixing temperature is 25-30℃, and the mixing time is 10-13 min.

[0008] As described above, in a soil amendment, the concentration of sodium alginate solution in step 2 is 3.5-4.5%, the volume ratio of suspension to sodium alginate in step 1 is 1:6-8, the mixing speed is 100-150 r / min, the mixing temperature is 30-35℃, and the mixing time is 20-25 min.

[0009] As described above, in a soil amendment, the concentration of calcium chloride solution in step 3 is 3-4%, the volume ratio of the mixture obtained in step 2 to the calcium chloride solution is 1:4-6, the dropping rate is controlled at 20-30 drops / min, the temperature of the calcium chloride solution during the dropping process is 30-35℃, and the mixture is continuously stirred at a speed of 50-70 r / min. After the dropping is completed, the temperature is maintained and stirring continues for 28-34 min.

[0010] As described above, in step 4 of the soil amendment product, the drying process is carried out under negative pressure, with a drying temperature of 40-50℃, a vacuum degree of -0.08 to -0.06 MPa, and a drying time of 3-4 hours.

[0011] The soil conditioner described above, a soil conditioner containing chelated trace elements, comprises the following components in parts by weight: 3-5 parts cysteine ​​chelated iron, 2-4 parts lysine chelated zinc, 4-6 parts glycine chelated calcium, and 2-4 parts threonine chelated magnesium.

[0012] The preparation method of the soil-amendment agent described above includes the following steps: Step 1: Weigh out the following ingredients according to the specified ratio: cyanobacterial oligosaccharide, burdock oligosaccharide, morinda root oligosaccharide, compound microbial agent gel, compound trace element chelate preparation, humic acid, sepiolite, actinolite, chitin, and γ-aminobutyric acid. Step 2: After weighing out the cyanobacterial oligosaccharides, burdock oligosaccharides, morinda root oligosaccharides, compound microbial agent gel, compound trace element chelate preparation, humic acid, sepiolite, actinolite, chitin, and γ-aminobutyric acid, mix them, pulverize and package them to obtain Dilisu.

[0013] As described above, in step two of the soil improvement agent, after crushing, it is passed through a 100-mesh sieve. If there are residual particles on the sieve, it is further crushed until all particles pass through the sieve.

[0014] The advantages of this invention are: The cyanobacterial oligosaccharides in this invention have excellent water solubility and biological activity, which can promote the proliferation of beneficial microorganisms in the soil and enhance the diversity and activity of the soil microbial community. At the same time, the active groups in its molecular structure can interact with the surface of soil particles, improve soil aggregate structure, reduce soil bulk density, and improve soil aeration and water and fertilizer retention capacity. In this invention, burdock oligosaccharides not only provide a carbon source for soil microorganisms, but also stimulate crop roots to secrete organic acids and other substances, enhance the roots' ability to absorb nutrients, and have a certain stress resistance regulation effect, which can improve the growth performance of crops under adverse conditions. The Morinda officinalis oligosaccharide in this invention has unique physiological activity, which can promote the activity of enzymes in the soil, such as urease and phosphatase, accelerate the decomposition and transformation of organic matter in the soil, and release nutrients such as nitrogen, phosphorus and potassium that can be absorbed by crops, thereby further enhancing the soil's fertilization capacity. In this invention, the compound microbial agent gel selects Chaetomium globosum, Trichoderma longifolium, and Microbacterium citrinum. These three strains work synergistically to effectively inhibit the growth and reproduction of various pathogens in the soil, reducing the risk of soil-borne diseases. Chaetomium globosum can produce a variety of antibacterial substances and cell wall degrading enzymes, which have a direct antagonistic effect on pathogens and can promote plant growth. Trichoderma longifolium not only has a strong biocontrol function, but can also protect crops through multiple mechanisms such as competing for nutrients and space and inducing plant systemic resistance. Microbacterium citrinum can degrade organic pollutants in the soil, improve the soil microecological environment, and its metabolites help to improve the availability of nutrients such as nitrogen and phosphorus in the soil. The gel carrier formed by sodium alginate and calcium chloride can provide a stable microenvironment for the compound microbial agent, protect the strains from adverse factors in the soil, prolong the survival time and action cycle of the strains in the soil, and achieve slow release and continuous colonization of live bacteria. Moreover, the addition of the compound microbial agent in the form of a gel can effectively reduce the loss of the agent during storage, transportation and application compared with the direct addition of powder or liquid microbial agents. In actual use, the gel can also play a slow-release role, allowing the compound microbial agent to be gradually released in the soil, improving its compatibility with the soil environment and its efficiency of action. The compound trace element chelate preparation of this invention uses cysteine ​​to chelate iron, lysine to chelate zinc, glycine to chelate calcium, and threonine to chelate magnesium in combination. Through amino acid chelation technology, the bioavailability of trace elements is improved, avoiding the problems of traditional inorganic trace elements being easily fixed by the soil and having low utilization rate. These chelated trace elements can be directly absorbed and utilized by crops, participating in the physiological metabolic processes of crop photosynthesis and respiration, effectively preventing various physiological diseases caused by trace element deficiency in crops, improving crop quality and yield. Moreover, the amino acids chelated with them are also excellent organic nitrogen sources that can be decomposed and utilized by soil microorganisms, further promoting the improvement of soil fertility. Humic acid, as a natural organic substance, has abundant functional groups. It can regulate soil pH, adsorb heavy metal ions and harmful substances in the soil, reduce their bioavailability, improve soil colloidal structure, and enhance soil fertility retention and buffering capacity. The sepiolite fiber in this invention has a huge specific surface area and porous structure, which can adsorb heavy metal ions and harmful substances in the soil, reduce their bioavailability, reduce their toxicity to crops, and at the same time, its good adsorption and ion exchange properties help to retain nutrients in the soil, prevent nutrient loss, and improve soil aeration and permeability. In this invention, actinolite, as a natural mineral, can not only replenish the soil with mineral elements such as calcium, magnesium, and iron, but its unique crystal structure can also enhance the soil's buffering capacity, improve the soil's resistance to acid-base changes, and maintain the stability of the soil environment. Chitin in this invention has good biocompatibility and degradability. After decomposition in the soil, it can provide nutrients for microorganisms and promote the growth of beneficial bacteria. At the same time, the amino and hydroxyl groups in its molecular structure can interact with soil particles and nutrients, improve the soil's fertilizer retention capacity, and induce crops to develop disease resistance, thereby enhancing the crops' resistance to diseases and pests. In this invention, γ-aminobutyric acid (GABA) is an important plant growth regulator that can promote the growth and development of crop roots, increase the number of root hairs and root surface area, improve the root system's ability to absorb water and nutrients, regulate the crop's carbon and nitrogen metabolism, and enhance the crop's resistance to stress, such as drought, cold, and salinity, thereby promoting the healthy growth of crops. In this invention, the components work synergistically to improve soil structure, enhance fertility, regulate microbial balance, adsorb harmful substances, and promote crop growth, thereby effectively improving the soil environment and increasing the efficiency of soil improvement. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the average plant height in the verification test of this invention; Figure 2 This is a schematic diagram of the average root length of the plant in the verification test of this invention. Figure 3 This is a schematic diagram of the yield per mu (unit of land area) in the verification test of this invention; Figure 4 This is a schematic diagram of the thousand-grain weight from the verification test of this invention. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] A soil-improving agent comprises: 4-6 parts of cyanobacterial oligosaccharides, 2-4 parts of burdock oligosaccharides, 1-3 parts of Morinda officinalis oligosaccharides, 6-8 parts of compound microbial agent gel, 3-5 parts of compound trace element chelate preparation, 2-3 parts of humic acid, 2-3 parts of sepiolite, 4-6 parts of actinolite, 0.5-1 part of chitin, and 0.4-0.8 parts of γ-aminobutyric acid.

[0019] Preferably, the preparation method of the composite soil amendment gel described in this embodiment includes the following steps: Step 1: Add the compound bacterial agent to deionized water to form a uniform suspension; Step 2: Add sodium alginate solution to the suspension in Step 1 and continue mixing to obtain a mixture; Step 3: Add the mixed solution dropwise into the calcium chloride solution; Step 4: The filtered granules are dried to obtain a composite soil amendment gel.

[0020] Preferably, the compound microbial agent in step 1 of this embodiment includes the following substances in parts by weight: 4-6 parts of Chaetomium globosum, 3-4 parts of Trichoderma longifolium, and 2-3 parts of Microbacterium cirrhosa.

[0021] Preferably, in step 1 of this embodiment, the mass ratio of the compound bacterial agent to deionized water is 1:4 to 6, the mixing speed is 80 to 120 r / min, the mixing temperature is 25 to 30°C, and the mixing time is 10 to 13 min.

[0022] Preferably, in step 2 of this embodiment, the concentration of sodium alginate solution is 3.5-4.5%, the volume ratio of suspension to sodium alginate in step 1 is 1:6-8, the mixing speed is 100-150 r / min, the mixing temperature is 30-35℃, and the mixing time is 20-25 min.

[0023] Preferably, in step 3 of this embodiment, the concentration of the calcium chloride solution is 3-4%, the volume ratio of the mixture obtained in step 2 to the calcium chloride solution is 1:4-6, the dropping speed is controlled at 20-30 drops / min, the temperature of the calcium chloride solution is 30-35°C during the dropping process, and the mixture is continuously stirred at a speed of 50-70 r / min. After the dropping is completed, the temperature is maintained and stirring continues for 28-34 min.

[0024] Preferably, in step 4 of this embodiment, the drying is performed under negative pressure, with a drying temperature of 40-50°C, a vacuum degree of -0.08 to -0.06 MPa, and a drying time of 3-4 hours.

[0025] Preferably, the composite trace element chelating preparation described in this embodiment includes the following substances in parts by weight: 3-5 parts of cysteine ​​chelating iron, 2-4 parts of lysine chelating zinc, 4-6 parts of glycine chelating calcium, and 2-4 parts of threonine chelating magnesium.

[0026] Preferably, the preparation method of this embodiment includes the following steps: Step 1: Weigh out the following ingredients according to the specified ratio: cyanobacterial oligosaccharide, burdock oligosaccharide, morinda root oligosaccharide, compound microbial agent gel, compound trace element chelate preparation, humic acid, sepiolite, actinolite, chitin, and γ-aminobutyric acid. Step 2: After weighing out the cyanobacterial oligosaccharides, burdock oligosaccharides, morinda root oligosaccharides, compound microbial agent gel, compound trace element chelate preparation, humic acid, sepiolite, actinolite, chitin, and γ-aminobutyric acid, mix them, pulverize and package them to obtain Dilisu.

[0027] Preferably, in step two of this embodiment, after pulverizing, the particles are passed through a 100-mesh sieve. If there are residual particles on the sieve, they are pulverized again until all of them pass through the sieve.

[0028] Example 1 Step 1: Weigh out the following ingredients according to the specified ratio: 4 parts cyanobacterial oligosaccharide, 2 parts burdock oligosaccharide, 1 part Morinda officinalis oligosaccharide, 6 parts compound bacterial agent gel, 3 parts compound trace element chelating preparation (including the following substances in parts by weight: 3 parts cysteine ​​chelated iron, 2 parts lysine chelated zinc, 4 parts glycine chelated calcium, 2 parts threonine chelated magnesium), 2 parts humic acid, 2 parts sepiolite, 4 parts actinolite, 0.5 parts chitin, and 0.4 parts γ-aminobutyric acid. The preparation method of the composite soil amendment gel includes the following steps: Step 1: Add the compound bacterial agent to deionized water at a mass ratio of 1:4. Mix and stir at a speed of 80 r / min, at a temperature of 25℃, for 13 min to obtain a suspension. The compound microbial agent includes the following substances in parts by weight: 4 parts of Chaetomium globosum, 3 parts of Trichoderma longibranchii, and 2 parts of Microbacterium cirrhosa. Step 2: Add sodium alginate solution to the suspension in Step 1 and continue mixing. The concentration of sodium alginate solution is 3.5%, the volume ratio of the suspension in Step 1 to sodium alginate is 1:8, the mixing speed is 100 r / min, the mixing temperature is 30℃, and the mixing time is 25 min. Step 3: Add the mixed solution dropwise to the calcium chloride solution. The concentration of the calcium chloride solution is 3%. The volume ratio of the mixed solution obtained in Step 2 to the calcium chloride solution is 1:6. The dropping speed is controlled at 20-30 drops / min. During the dropping process, the temperature of the calcium chloride solution is 30℃, and the mixture is continuously stirred at a speed of 50r / min. After the dropping is completed, maintain the temperature and continue stirring for 34 minutes. Step 4: The filtered particles are dried under negative pressure at a temperature of 40℃ and a vacuum of -0.08MPa for 4 hours. The resulting composite soil amendment gel is obtained after drying. Step 2: Mix the weighed cyanobacterial oligosaccharides, burdock oligosaccharides, morinda root oligosaccharides, compound microbial agent gel, compound trace element chelate preparation, humic acid, sepiolite, actinolite, chitin, and γ-aminobutyric acid, then pulverize them. After pulverizing, pass them through a 100-mesh sieve. If there are residual particles on the sieve, continue pulverizing until all particles pass through the sieve. Then, package them to obtain Dilisu.

[0029] Example 2 Step 1: Weigh out the following ingredients according to the specified ratio: 6 parts cyanobacterial oligosaccharide, 4 parts burdock oligosaccharide, 3 parts Morinda officinalis oligosaccharide, 8 parts compound bacterial agent gel, 5 parts compound trace element chelating preparation (including the following substances in parts by weight: 5 parts cysteine ​​chelated iron, 4 parts lysine chelated zinc, 6 parts glycine chelated calcium, 4 parts threonine chelated magnesium), 3 parts humic acid, 3 parts sepiolite, 6 parts actinolite, 1 part chitin, and 0.8 parts γ-aminobutyric acid. The preparation method of the composite soil amendment gel includes the following steps: Step 1: Add the compound bacterial agent to deionized water at a mass ratio of 1:6. Mix and stir at a speed of 120 r / min, at a temperature of 30℃, for 10 min to obtain a suspension. The compound microbial agent includes the following substances in parts by weight: 6 parts of Chaetomium globosum, 4 parts of Trichoderma longibranchii, and 3 parts of Microbacterium cirrhosa. Step 2: Add sodium alginate solution to the suspension in Step 1 and continue mixing. The concentration of sodium alginate solution is 4.5%, the volume ratio of suspension in Step 1 to sodium alginate is 1:6, the mixing speed is 150 r / min, the mixing temperature is 35℃, and the mixing time is 20 min. Step 3: Add the mixed solution dropwise to the calcium chloride solution. The concentration of the calcium chloride solution is 4%. The volume ratio of the mixed solution obtained in Step 2 to the calcium chloride solution is 1:4. The dropping speed is controlled at 20-30 drops / min. During the dropping process, the temperature of the calcium chloride solution is 35℃, and the mixture is continuously stirred at a speed of 70r / min. After the dropping is completed, maintain the temperature and continue stirring for 28min. Step 4: The filtered particles are dried under negative pressure at a temperature of 50°C and a vacuum of -0.06 MPa for 3 hours. The resulting composite soil amendment gel is obtained after drying. Step 2: Mix the weighed cyanobacterial oligosaccharides, burdock oligosaccharides, morinda root oligosaccharides, compound microbial agent gel, compound trace element chelate preparation, humic acid, sepiolite, actinolite, chitin, and γ-aminobutyric acid, then pulverize them. After pulverizing, pass them through a 100-mesh sieve. If there are residual particles on the sieve, continue pulverizing until all particles pass through the sieve. Then, package them to obtain Dilisu.

[0030] Example 3 Step 1: Weigh out the following ingredients according to the specified ratio: 5 parts cyanobacterial oligosaccharide, 3 parts burdock oligosaccharide, 2 parts Morinda officinalis oligosaccharide, 7 parts compound bacterial agent gel, 4 parts compound trace element chelating preparation (including the following substances in parts by weight: 4 parts cysteine ​​chelated iron, 3 parts lysine chelated zinc, 5 parts glycine chelated calcium, 3 parts threonine chelated magnesium), 2.5 parts humic acid, 2.5 parts sepiolite, 5 parts actinolite, 0.8 parts chitin, and 0.6 parts γ-aminobutyric acid. The preparation method of the composite soil amendment gel includes the following steps: Step 1: Add the compound bacterial agent to deionized water at a mass ratio of 1:5. Mix and stir at 100 r / min, at a temperature of 28℃, for 12 min to obtain a suspension. The compound microbial agent includes the following substances in parts by weight: 5 parts of Chaetomium globosum, 3.5 parts of Trichoderma longifolium, and 2.5 parts of Microbacterium cirrhosa. Step 2: Add sodium alginate solution to the suspension in Step 1 and continue mixing. The concentration of sodium alginate solution is 4%, the volume ratio of the suspension in Step 1 to sodium alginate is 1:7, the mixing speed is 130 r / min, the mixing temperature is 33℃, and the mixing time is 23 min. Step 3: Add the mixed solution dropwise to the calcium chloride solution. The concentration of the calcium chloride solution is 3.5%. The volume ratio of the mixed solution obtained in Step 2 to the calcium chloride solution is 1:5. The dropping speed is controlled at 20-30 drops / min. During the dropping process, the temperature of the calcium chloride solution is 33℃, and the mixture is continuously stirred at a speed of 60r / min. After the dropping is completed, maintain the temperature and continue stirring for 31min. Step 4: The filtered particles are dried under negative pressure at a temperature of 45℃ and a vacuum of -0.07MPa for 3.5 hours. The resulting composite soil amendment gel is obtained after drying.

[0031] Step 2: Mix the weighed cyanobacterial oligosaccharides, burdock oligosaccharides, morinda root oligosaccharides, compound microbial agent gel, compound trace element chelate preparation, humic acid, sepiolite, actinolite, chitin, and γ-aminobutyric acid, then pulverize them. After pulverizing, pass them through a 100-mesh sieve. If there are residual particles on the sieve, continue pulverizing until all particles pass through the sieve. Then, package them to obtain Dilisu.

[0032] Verification test The experimental field was selected from cultivated land in Yangshan County, Qingyuan City, Guangdong Province, where excessive use of chemical fertilizers had led to soil compaction and decreased fertility. The land was evenly divided into six plots, named Example 1, Example 2, Example 3, Comparative Example 1, Comparative Example 2, and Control Group. Corn was planted. Example 1 received 50 kg of 15-15-15 compound fertilizer plus 5 kg of the soil-fertilizing agent prepared in Example 1 per mu (approximately 0.067 hectares) before sowing. Example 2 received the same fertilizer plus 5 kg of the soil-fertilizing agent prepared in Example 2 per mu (approximately 0.067 hectares) before sowing. Example 3 received the same fertilizer plus 5 kg of the soil-fertilizing agent prepared in Example 3 per mu (approximately 0.067 hectares) before sowing. Lisu; Comparative Example 1: Before sowing, 50 kg of 15-15-15 compound fertilizer and 5 kg of quicklime (a commonly used additive to combat soil compaction) were applied per mu (0.067 hectares); Comparative Example 2: Before sowing, 100 kg of organic fertilizer made from straw and livestock manure compost was applied per mu (because the fertility of organic fertilizer is insufficient, if the same amount is applied, the corn will lack nutrients for subsequent growth, thus affecting the accuracy of the results); Control Group: Before sowing, 55 kg of 15-15-15 compound fertilizer was applied per mu (0.067 hectares). All other sowing and planting conditions were the same. The planted variety was Yuexiannuo No. 6. Harvesting was conducted 80 days after planting, and the average plant height, average root length, yield per mu, and thousand-grain weight were recorded. The results are as follows: Figure 1-4 As shown.

[0033] Depend on Figure 1-4 The data shows that, The average plant height, average root length, yield per mu, and thousand-grain weight of the Example 1, Example 2, and Example 3 groups were all higher than those of the Comparative Example 1, Comparative Example 2, and the blank group. Therefore, the soil-enhancing agent prepared by this invention can effectively promote the growth and development of maize plants, enhance root vitality, increase crop yield and grain plumpness. Its comprehensive effect on soil improvement is better than that of traditional quicklime conditioning and simple organic fertilizer application, making it easy to be widely used in the field of soil improvement.

[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A soil-enhancing agent, characterized in that: include: 4-6 parts of cyanobacterial oligosaccharides, 2-4 parts of burdock oligosaccharides, 1-3 parts of Morinda officinalis oligosaccharides, 6-8 parts of compound bacterial agent gel, 3-5 parts of compound trace element chelate preparation, 2-3 parts of humic acid, 2-3 parts of sepiolite, 4-6 parts of actinolite, 0.5-1 part of chitin, and 0.4-0.8 parts of γ-aminobutyric acid.

2. The soil conditioner for soil improvement according to claim 1, characterized in that: The preparation method of the composite soil amendment gel includes the following steps: Step 1: Add the compound bacterial agent to deionized water to form a uniform suspension; Step 2: Add sodium alginate solution to the suspension in Step 1 and continue mixing to obtain a mixture; Step 3: Add the mixed solution dropwise into the calcium chloride solution; Step 4: The filtered granules are dried to obtain a composite soil amendment gel.

3. A soil conditioner for soil improvement according to claim 2, characterized in that: The compound microbial agent in step 1 includes the following substances in parts by weight: 4-6 parts of Chaetomium globosum, 3-4 parts of Trichoderma longifolia, and 2-3 parts of Microbacterium cirrhosa.

4. A soil conditioner for soil improvement according to claim 2, characterized in that: In step 1, the mass ratio of the compound bacterial agent to deionized water is 1:4-6, the mixing speed is 80-120 r / min, the mixing temperature is 25-30℃, and the mixing time is 10-13 min.

5. A soil conditioner for soil improvement according to claim 2, characterized in that: In step 2, the concentration of sodium alginate solution is 3.5-4.5%, the volume ratio of suspension to sodium alginate in step 1 is 1:6-8, the mixing speed is 100-150 r / min, the mixing temperature is 30-35℃, and the mixing time is 20-25 min.

6. A soil conditioner for soil improvement according to claim 1, characterized in that: In step 3, the concentration of the calcium chloride solution is 3-4%, the volume ratio of the mixture obtained in step 2 to the calcium chloride solution is 1:4-6, the dropping speed is controlled at 20-30 drops / min, the temperature of the calcium chloride solution is 30-35℃ during the dropping process, and the mixture is continuously stirred at a speed of 50-70 r / min. After the dropping is completed, the temperature is maintained and stirring continues for 28-34 min.

7. A soil conditioner for soil improvement according to claim 1, characterized in that: In step 4, the drying process uses negative pressure drying, with a drying temperature of 40-50℃, a vacuum degree of -0.08 to -0.06MPa, and a drying time of 3-4 hours.

8. A soil conditioner for soil improvement according to claim 1, characterized in that: The aforementioned compound trace element chelating preparation comprises the following substances in parts by weight: 3-5 parts of cysteine ​​chelating iron, 2-4 parts of lysine chelating zinc, 4-6 parts of glycine chelating calcium, and 2-4 parts of threonine chelating magnesium.

9. A soil conditioner for soil improvement according to claim 1, characterized in that: Its preparation method includes the following steps: Step 1: Weigh out the following ingredients according to the specified ratio: cyanobacterial oligosaccharide, burdock oligosaccharide, morinda root oligosaccharide, compound microbial agent gel, compound trace element chelate preparation, humic acid, sepiolite, actinolite, chitin, and γ-aminobutyric acid. Step 2: After weighing out the cyanobacterial oligosaccharides, burdock oligosaccharides, morinda root oligosaccharides, compound microbial agent gel, compound trace element chelate preparation, humic acid, sepiolite, actinolite, chitin, and γ-aminobutyric acid, mix them, pulverize and package them to obtain Dilisu.

10. A soil conditioner for soil improvement according to claim 9, characterized in that: In step two, after crushing, the particles are passed through a 100-mesh sieve. If there are residual particles on the sieve, they are crushed again until all of them pass through the sieve.

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