Composite culture medium with waste agaric sticks as main raw materials and application of composite culture medium

Abstract

The invention discloses a composite culture medium with waste agaric fungus sticks as a main raw material and application thereof, relates to the technical field of recycling of waste agaric fungus sticks, and aims to solve the problems that in the prior art, the effect on improving the physical properties (such as breathability and drainage) of the waste agaric fungus sticks is limited, and respiration and growth of plant roots are affected. The composite culture medium is composed of waste agaric fungus stick particles, a deeply decomposed organic fertilizer mixture, nano-scale inorganic mineral composite powder, an efficient composite microbial agent and a natural plant fiber net. The waste agaric fungus stick particles are obtained by conducting multi-stage crushing and screening on waste agaric fungus sticks, removing most impurities, and conducting fermentation. Rich organic matters and trace elements are reserved, and then a biological enzymatic degradation technology is adopted. The method has the advantages that the breathability and drainage of the substrate are improved, and normal respiration and growth of plant roots are ensured.

Description

Technical Field

[0001] The invention relates to the technical field of recycling waste wood ear mushroom sticks, and more particularly to a composite cultivation substrate using waste wood ear mushroom sticks as main raw materials and application thereof. Background Art

[0002] Globally, with the increase in population and the acceleration of urbanization, the sustainable development of agricultural production faces unprecedented challenges, including the large amount of waste generated in the agricultural production process, such as wood ear mushroom sticks.

[0003] Wood ear mushroom sticks are a by-product of wood ear production, and a large amount of waste is generated worldwide every year. These discarded wood ear mushroom sticks are not only rich in organic matter and trace elements, but also have good moisture retention and air permeability. Converting discarded wood ear mushroom sticks into composite cultivation substrates can not only reduce environmental pollution, but also provide an effective growth medium for economic crops, promoting their growth and development.

[0004] However, existing technologies have limited effects in improving the physical properties (such as air permeability and drainage) of discarded wood ear mushroom sticks, resulting in some composite matrices easily becoming compacted or waterlogged during use, thereby affecting the respiration and growth of plant roots.

[0005] In view of this, we proposed a composite cultivation matrix using discarded wood ear mushroom sticks as the main raw material and its application. Summary of the Invention

[0006] The purpose of the present invention is to provide a composite cultivation substrate with discarded wood ear mushroom sticks as the main raw material and its application, aiming to solve the problem that the existing technology has limited effect in improving the physical properties (such as air permeability and drainage) of discarded wood ear mushroom sticks, which affects the respiration and growth of plant roots.

[0007] To solve the above technical problems, the present invention provides the following technical solution: a composite cultivation matrix using discarded wood ear mushroom sticks as the main raw materials, the composite cultivation matrix consisting of discarded wood ear mushroom stick particles, a mixture of deeply decomposed organic fertilizers, nano-scale inorganic mineral composite powders, a high-efficiency composite microbial agent, and a natural plant fiber net:

[0008] The waste wood ear mushroom stick microparticles are obtained by multi-stage crushing and screening of waste wood ear mushroom sticks to remove most impurities, retain rich organic matter and trace elements, and then using bioenzymatic degradation technology;

[0009] The deeply decomposed organic fertilizer mixture is prepared by mixing cow dung, sheep dung and chicken dung in a ratio of 2:1:1;

[0010] The nano-scale inorganic mineral composite powder is prepared by mixing nano-diatomaceous earth, nano-montmorillonite and nano-calcium carbonate in a ratio of 3:2:1;

[0011] The high-efficiency composite microbial agent contains lignin-decomposing bacteria, cellulose-decomposing bacteria, nitrogen-fixing bacteria, phosphate-solubilizing bacteria and potassium-solubilizing bacteria, forming a stable microbial ecosystem;

[0012] The natural plant fiber net is made of coconut shell fiber and bamboo fiber interwoven in a ratio of 1:1;

[0013] The waste wood ear mushroom stick particles, the deeply decomposed organic fertilizer mixture, the nanometer-level inorganic mineral composite powder, the high-efficiency composite microbial agent and the natural plant fiber net are mixed in the following proportions: 60%-70%: 15%-20%: 8%-12%: 2%-3%: 1%-1.5%.

[0014] Preferably, during the bioenzymatic degradation optimization process of the discarded wood ear mushroom stick particles, xylanase, cellulase, laccase and catalase are added to deeply degrade lignin and cellulose.

[0015] Preferably, it further comprises 0.2%-0.6% of a trace element chelate solution, wherein the trace element chelate solution is rich in iron, zinc, copper, manganese, boron and molybdenum, so as to improve the stability of the trace elements in the matrix and the absorption efficiency of the plants.

[0016] Preferably, the nano-scale inorganic mineral composite powder is surface modified by using a silane coupling agent at a mass ratio of 1:50, and the particle size of the treated nano-scale inorganic mineral composite powder is 45-50 nanometers.

[0017] Preferably, in the high-efficiency composite microbial agent, lignin-decomposing bacteria account for 30%, cellulose-decomposing bacteria account for 25%, nitrogen-fixing bacteria account for 15%, phosphate-solubilizing bacteria account for 15%, and potassium-solubilizing bacteria account for 15%, and the number of viable bacteria of the high-efficiency composite microbial agent is not less than 500 million CFU / gram.

[0018] Preferably, it further comprises 0.2% of a natural plant growth regulator, which is a mixture of materials in the following proportions: sodium alginate accounts for 40%, chitosan accounts for 40%, and plant-derived growth hormone accounts for 20%.

[0019] Preferably, the method further comprises 0.05%-0.1% of a pH regulator, wherein the pH regulator is a mixture of calcium carbonate and magnesium hydroxide in a mass ratio of 2:1, and is used to adjust the initial pH value of the matrix to between 6.0 and 7.0.

[0020] An application of a composite cultivation substrate with discarded wood ear mushroom sticks as main raw materials, including any one of the composite cultivation substrates with discarded wood ear mushroom sticks as main raw materials as described above, is used in crop cultivation.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] 1. The present invention improves the deficiencies in the physical properties of discarded wood ear mushroom sticks. By adding ingredients such as nano-scale inorganic mineral composite powder and natural plant fiber mesh, the problem of compaction or water accumulation that may occur in the composite matrix during use is effectively solved. The addition of these ingredients improves the air permeability and drainage of the matrix, ensuring that the plant roots can breathe and grow normally, and avoiding the stunted growth of crops caused by poor matrix.

[0023] 2. The discarded wood ear mushroom sticks in the present invention are rich in organic matter and trace elements. Through multi-stage crushing, screening and bio-enzymatic degradation technology, they are converted into high-quality cultivation matrix, realizing resource recycling, reducing dependence on natural resources and mining pressure, and helping to promote sustainable agricultural development.

[0024] 3. The present invention adds ingredients such as a deeply decomposed organic fertilizer mixture, nano-scale inorganic mineral composite powder, high-efficiency composite microbial agent, and natural plant fiber network, which significantly improves the organic matter content, nutrient balance, air permeability, and water retention of the soil. These optimized conditions provide a good growth environment for crops, promote root development and nutrient absorption, thereby increasing the growth rate and yield of crops, while improving the quality of crops. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the composition of the composite cultivation matrix of the present invention. DETAILED DESCRIPTION

[0026] A composite cultivation matrix using discarded wood ear mushroom sticks as the main raw materials, the composite cultivation matrix is ​​composed of discarded wood ear mushroom stick particles, a mixture of deeply decomposed organic fertilizers, nano-scale inorganic mineral composite powders, high-efficiency composite microbial agents, and a natural plant fiber net:

[0027] The waste wood ear mushroom stick microparticles are obtained by multi-stage crushing and screening of waste wood ear mushroom sticks to remove most impurities, retain rich organic matter and trace elements, and then using bioenzymatic degradation technology;

[0028] The deeply decomposed organic fertilizer mixture is prepared by mixing cow dung, sheep dung and chicken dung in a ratio of 2:1:1;

[0029] The nano-scale inorganic mineral composite powder is prepared by mixing nano-diatomaceous earth, nano-montmorillonite and nano-calcium carbonate in a ratio of 3:2:1;

[0030] The high-efficiency composite microbial agent contains lignin-decomposing bacteria, cellulose-decomposing bacteria, nitrogen-fixing bacteria, phosphate-solubilizing bacteria and potassium-solubilizing bacteria, forming a stable microbial ecosystem;

[0031] The natural plant fiber net is made of coconut shell fiber and bamboo fiber interwoven in a ratio of 1:1;

[0032] The waste wood ear mushroom stick particles, the deeply decomposed organic fertilizer mixture, the nano-scale inorganic mineral composite powder, the high-efficiency composite microbial agent and the natural plant fiber net are mixed in the following proportions: 60%-70%: 15%-20%: 8%-12%: 2%-3%: 1%-1.5%;

[0033] During the bioenzymatic degradation optimization process of the waste wood ear mushroom stick particles, xylanase, cellulase, laccase and catalase are added to deeply degrade lignin and cellulose;

[0034] It also includes a 0.2%-0.6% trace element chelate solution, which is rich in iron, zinc, copper, manganese, boron and molybdenum, to improve the stability of the trace elements in the matrix and the efficiency of plant absorption;

[0035] The nano-scale inorganic mineral composite powder is surface-modified by using a silane coupling agent at a mass ratio of 1:50, and the particle size of the treated nano-scale inorganic mineral composite powder is 45-50 nanometers;

[0036] The high-efficiency composite microbial agent comprises 30% lignin-decomposing bacteria, 25% cellulose-decomposing bacteria, 15% nitrogen-fixing bacteria, 15% phosphate-solubilizing bacteria, and 15% potassium-solubilizing bacteria, and the viable bacterial count of the high-efficiency composite microbial agent is not less than 500 million CFU / g;

[0037] The invention also includes 0.2% of a natural plant growth regulator, which is a mixture of materials in the following proportions: sodium alginate (40%), chitosan (40%), and plant-derived auxin (20%).

[0038] The invention also includes 0.05%-0.1% of a pH regulator, wherein the pH regulator is a mixture of calcium carbonate and magnesium hydroxide in a mass ratio of 2:1, and is used to adjust the initial pH value of the matrix to between 6.0 and 7.0;

[0039] The composite cultivation matrix is ​​composed of a variety of key components, including discarded wood ear mushroom stick particles, deeply decomposed organic fertilizer mixture, nano-scale inorganic mineral composite powder, high-efficiency composite microbial agent and natural plant fiber net. Among them, the discarded wood ear mushroom stick particles are obtained by multi-stage crushing and screening to remove most of the impurities, and then the bio-enzymatic degradation technology is used to retain rich organic matter and trace elements. This treatment process not only solves the problem of the disposal of discarded wood ear mushroom sticks, but also converts them into nutrient-rich cultivation matrix raw materials. The deeply decomposed organic fertilizer mixture is made of cow dung, sheep dung and chicken dung in a ratio of 2:1:1, which is the base. The nano-scale inorganic mineral composite powder is made of nano-diatomaceous earth, nano-montmorillonite and nano-calcium carbonate in a ratio of 3:2:1. After surface modification, the particle size is controlled at 45-50 nanometers, which significantly improves the physical properties and nutrient release efficiency of the matrix. The high-efficiency composite microbial agent contains lignin-decomposing bacteria, cellulose-decomposing bacteria, nitrogen-fixing bacteria, phosphate-solubilizing bacteria and potassium-solubilizing bacteria, forming a stable microbial ecosystem that helps promote plant growth and development. The natural plant fiber net is made of coconut shell fiber and bamboo fiber interwoven in a ratio of 1:1, providing the matrix with good air permeability and water retention.

[0040] During the preparation process, the ratio of each component is carefully designed. The discarded wood ear mushroom stick particles, the deeply decomposed organic fertilizer mixture, the nano-scale inorganic mineral composite powder, the high-efficiency composite microbial agent and the natural plant fiber net are mixed in the proportion of 60%-70%: 15%-20%: 8%-12%: 2%-3%: 1%-1.5% in sequence. In addition, in order to further optimize the performance of the matrix, 0.2%-0.6% of the trace element chelate solution is added to improve the stability of the trace elements in the matrix and the plant absorption efficiency. 0.2% of the natural plant growth regulator is mixed by sodium alginate, chitosan and plant-derived auxin in a certain proportion to help promote the growth and development of plants. 0.05%-0.1% of the pH regulator is mixed by calcium carbonate and magnesium hydroxide in a mass ratio of 2:1 to adjust the initial pH value of the matrix to between 6.0 and 7.0 to meet the growth needs of different plants.

[0041] This composite cultivation matrix has shown good application effects in crop cultivation. Its rich organic matter and trace elements provide plants with sufficient nutrient sources. Its good air permeability and water retention are conducive to the growth and development of plant roots. The stable microbial ecosystem helps promote the absorption and utilization of nutrients by plants. In addition, the matrix also has the advantages of low cost, environmental protection, and renewability, which meets the requirements of sustainable development of modern agriculture.

[0042] The embodiments disclosed in the present invention are preferred embodiments, but are not limited to them. Ordinary technicians in this field can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes. As long as they do not deviate from the spirit of the present invention, they are all within the scope of protection of the present invention.

Claims

1. A composite cultivation matrix with discarded wood ear mushroom sticks as the main raw material, characterized in that: The composite cultivation matrix is ​​composed of waste wood ear mushroom stick particles, a mixture of deeply decomposed organic fertilizers, nano-scale inorganic mineral composite powders, high-efficiency composite microbial agents, and natural plant fiber nets: The waste auricularia auriculariae fungus stick microparticles are obtained by multi-stage crushing and screening of waste auricularia auriculariae fungus sticks, removing most impurities, retaining rich organic matter and trace elements, and then using bioenzymatic degradation technology; The deeply decomposed organic fertilizer mixture is prepared by mixing cow dung, sheep dung and chicken dung in a ratio of 2:1:1; The nano-scale inorganic mineral composite powder is prepared by mixing nano-diatomaceous earth, nano-montmorillonite and nano-calcium carbonate in a ratio of 3:2:1; The highly efficient composite microbial agent contains lignin decomposing bacteria, cellulose decomposing bacteria, nitrogen fixing bacteria, phosphate solubilizing bacteria and potassium solubilizing bacteria, forming a stable microbial ecosystem; The natural plant fiber net is made of coconut shell fiber and bamboo fiber interwoven in a ratio of 1:1; The waste wood ear mushroom stick particles, the deeply decomposed organic fertilizer mixture, the nanometer-level inorganic mineral composite powder, the high-efficiency composite microbial agent and the natural plant fiber net are mixed in the proportions of 60%-70%, 15%-20%, 8%-12%, 2%-3% and 1%-1.5% in sequence.

2. The composite cultivation matrix with discarded Auricularia auriculariae fungus sticks as main raw materials according to claim 1, characterized in that: In the process of optimizing the bioenzymatic degradation of the discarded wood ear mushroom stick particles, xylanase, cellulase, laccase and catalase are added to deeply degrade lignin and cellulose.

3. The composite cultivation matrix with discarded Auricularia auriculariae fungus sticks as main raw materials according to claim 1, characterized in that: It also includes 0.2%-0.6% of trace element chelate solution, which is rich in iron, zinc, copper, manganese, boron and molybdenum elements, and improves the stability of trace elements in the matrix and the absorption efficiency of plants.

4. The composite cultivation matrix with discarded Auricularia auriculariae fungus sticks as main raw materials according to claim 1, characterized in that: The nano-scale inorganic mineral composite powder is subjected to surface modification treatment, specifically, surface modification is performed using a silane coupling agent at a mass ratio of 1:50, and the particle size of the treated nano-scale inorganic mineral composite powder is 45-50 nanometers.

5. The composite cultivation matrix with discarded Auricularia auriculariae fungus sticks as main raw materials according to claim 1, characterized in that: In the high-efficiency composite microbial agent, lignin-decomposing bacteria account for 30%, cellulose-decomposing bacteria account for 25%, nitrogen-fixing bacteria account for 15%, phosphate-solubilizing bacteria account for 15%, and potassium-solubilizing bacteria account for 15%, and the number of live bacteria in the high-efficiency composite microbial agent is not less than 500 million CFU / gram.

6. The composite cultivation substrate with discarded Auricularia auriculariae fungus sticks as main raw materials according to claim 1, characterized in that: The invention also comprises 0.2% of a natural plant growth regulator, which is mixed with materials in the following proportions: 40% of sodium alginate, 40% of chitosan and 20% of plant-derived growth hormone.

7. The composite cultivation matrix with discarded Auricularia auriculariae fungus sticks as main raw materials according to claim 1, characterized in that: The invention also comprises 0.05%-0.1% of a pH regulator, wherein the pH regulator is a mixture of calcium carbonate and magnesium hydroxide in a mass ratio of 2:1, and is used for adjusting the initial pH value of the matrix to between 6.0 and 7.

0.

8. An application of a composite cultivation substrate with discarded Auricularia auriculariae fungus sticks as the main raw material, comprising the composite cultivation substrate with discarded Auricularia auriculariae fungus sticks as the main raw material as claimed in any one of claims 1 to 7, characterized in that: For application in crop cultivation.

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