Selenium-containing organic biological nutrient solution and processing method thereof

Abstract

The selenium-containing organic biological nutrient solution is prepared from the following ingredients in percentage by weight: 0.1 to 1.5 percent of calcium selenite, 0.5 to 1.5 percent of folic acid, 1 to 3 percent of zinc sulfate, 2 to 4 percent of ferrous sulfate, 6 to 12 percent of sugar, 10 to 20 percent of nutrient substrates, 0.5 to 1.8 percent of saccharomycetes, 8 to 13 percent of mushroom dregs, 0.5 to 1.5 percent of selenium yeast, 10 to 20 percent of distillers' grains and the balance of water, the nutrient solution contains a plurality of nutrient elements, amino acids and fungi, can increase the yield of crops, further contains selenium which is easy to absorb, is quick in action on the crops, obvious in effect and high in selenium utilization rate, and can increase the content of organic selenium in agricultural products, so that the quality of the agricultural products is improved, and the yield of the agricultural products is increased. The permeability of the soil can be improved, chemical fertilizer residues in the soil are reduced, organic matters in the soil are increased, and the condition of soil hardening is improved.

Description

Technical Field

[0001] The invention relates to the technical field of agriculture, in particular to a selenium-containing organic biological nutrient solution and a processing method thereof. Background Art

[0002] With the continuous increase in population, people's demand for food is also increasing. The emergence of fertilizers and pesticides has doubled the yield of crops, making great contributions to solving the problem of food and clothing. Due to the rampant use of pesticides and fertilizers over the years, the problems of soil compaction, reduced permeability, soil nutrient loss, rampant pests and diseases in my country's planting soil are becoming more and more serious. At the same time, with the improvement of people's quality of life, people's requirements for food quality are also constantly increasing. Not only do they require good taste, but they also require green, pollution-free and high nutritional value.

[0003] Selenium can improve human immunity, delay aging, fight cancer, and prevent cardiovascular and cerebrovascular diseases. The importance of selenium to human health is increasingly valued, and the demand for selenium-rich foods is also increasing. Biological selenium enrichment is an effective way to obtain selenium. Ingesting selenium from crops is an important way for the human body to obtain selenium. The natural selenium content in crops is low, and the selenium content in agricultural products can be increased by applying fertilizers containing selenium. Fertilization through the land has a high loss rate of selenium, and it is not easy to be absorbed and converted, resulting in a waste of nutrients.

[0004] The concept of biological selenium has now emerged. Biological selenium is to mix selenium with microorganisms and use microorganisms to transform selenium to achieve the purpose of efficient utilization. For example, a method for preparing organic selenium fertilizer by hydrolyzing selenium-enriched yeast disclosed in Publication No. CN104108962A, which directly uses selenium-enriched yeast and amino acids to compound and then ferment again, but its fermentation temperature is 120-140 ° C. The temperature is too high to easily make amino acids and microorganisms lose activity, affecting fertilizer efficiency. Another example is the yeast selenium foliar fertilizer, preparation method and application disclosed in Publication No. CN109232107A, in which soluble selenium-enriched yeast is mixed with a synergist (dimethyl hydrogen phosphate or trimethyl citrate or tamarind gum polymer or polyoxyethylene ether compound) to obtain. However, it only contains yeast, the types of bacteria are few, and the scope of action on crops and soil is small. Publication No. CN109400265A discloses a selenium-rich fertilizer specifically for shiitake mushrooms, which is obtained by mixing shiitake mushroom residues, a composite bacterial agent (from Nocardia actinomycetes, Bacillus subtilis, Bacillus gelatinous, phosphorus bacteria, Bacillus cereus, Bacillus thuringiensis, photosynthetic bacteria, filamentous bacteria, and alcohol yeast) and selenium-rich slag. However, it is just a simple mixing and cannot achieve the conversion of selenium by fungi. Summary of the invention

[0005] In order to effectively solve the problems in the background technology and overcome the technical defects in the prior art, the present invention provides the following technical solutions: A selenium-containing organic biological nutrient solution comprises the following ingredients in percentage by weight: 0.1-1.5% calcium selenite, 0.5-1.5% folic acid, 1-3% zinc sulfate, 2-4% ferrous sulfate, 6-12% sugar, 10-20% nutrient matrix, 0.5-1.8% yeast, 8-13% fungus residue, 0.5-1.5% yeast selenium, 10-20% distiller's grains, and the balance is water.

[0006] As a preferred technical solution of the present invention, the calcium selenite is 1%, folic acid is 0.75%, zinc sulfate is 2%, ferrous sulfate is 3%, sugar is 8%, nutrient matrix is ​​16%, yeast is 1.2%, fungus residue is 9.3%, yeast selenium is 1%, distiller's grains is 16%, and the balance is water.

[0007] As a preferred technical solution of the present invention, the calcium selenite is 1.5%, folic acid is 0.5%, zinc sulfate is 3%, ferrous sulfate is 2%, sugar is 12%, nutrient matrix is ​​10%, yeast is 1.5%, fungus residue is 8%, yeast selenium is 1.8%, distiller's grains is 10%, and the balance is water.

[0008] As a preferred technical solution of the present invention, the nutrient matrix is ​​discarded animal tissue.

[0009] As a preferred technical solution of the present invention, the effective viable count of the yeast is 15-22 billion / g.

[0010] A method for processing a selenium-containing organic biological nutrient solution comprises the following steps: (1) After culturing earthworms in culture soil for 25 days, the earthworms are taken out, washed and sand is spitted out, and then ground to obtain earthworm slurry; (2) after fully mixing calcium selenite, folic acid, zinc sulfate, ferrous sulfate, sugar, nutrient matrix, yeast, bacterial residue, yeast selenium, lees and water according to weight percentage, anaerobically fermenting at a temperature of 65° C. for 132 days, stirring once every 12 days during the fermentation period; (3) After the fermentation is completed, filtering to obtain a filtrate; (4) After the earthworm slurry of step (1) and the filtrate of step (3) are fully and homogeneously mixed, a stabilizer is added to obtain a selenium-containing organic biological nutrient solution.

[0011] As a preferred technical solution of the present invention, the mixing ratio of the earthworm slurry to the filtrate in step (4) is 1:12.

[0012] As a preferred technical solution of the present invention, the stabilizer in step (4) is sodium carboxymethyl cellulose; the amount of sodium carboxymethyl cellulose added is 0.02% of the mixed solution.

[0013] As a preferred technical solution of the present invention, the culture soil for the earthworms in step (1) includes selenium-rich minerals, and the pH value of the culture soil is 4.8-6.2.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention mixes and ferments calcium selenite, folic acid, zinc sulfate, ferrous sulfate, sugar, nutrient matrix, yeast, fungus residue, yeast selenium and distiller's grains under an anaerobic environment, and performs aeration once during the fermentation process, so that the entire liquid contains a large amount of nutrient elements, lactic acid bacteria, yeast and yeast selenium; at the same time, the fungus residue also carries a variety of soil bacteria in other soils, which can diversify the bacterial species of the entire nutrient solution, and has a variety of anaerobic, facultative anaerobic and aerobic bacterial flora, and the various invertases and amino acids contained in earthworms can significantly turn yellow crops green, and cyan crops green, greatly improve the absorption rate of crops to fertilizers in the soil, and reduce the use of chemical fertilizers at the same time. The fullness of crop particles is increased to increase the yield, the utilization rate of selenium is high, and the content of organic selenium in agricultural products is increased, thereby improving the quality of agricultural products.

[0015] 2. The nutrient solution of the present invention contains a variety of nutrient elements, amino acids and fungi, and also contains easily absorbed selenium, which has a fast effect on crops and obvious effects. Since it contains a large amount of sugars and proteins, it can provide nutrients for microorganisms in the soil when applied to the soil, and it contains a large amount of active bacteria, which further improves the permeability of the soil, reduces the fertilizer residue in the soil, increases the organic matter in the soil, improves the condition of soil compaction, and can effectively solve the problem of rural non-point source pollution.

[0016] 3. By cultivating earthworms under acidic conditions, earthworms can quickly convert selenium in selenium-rich minerals, shortening the production cycle; and the entire process is simple through breeding-fermentation-filtration-mixing, which can greatly save production costs, and breeding and fermentation can be carried out simultaneously, saving time costs.

[0017] 4. The present invention uses discarded animal tissues, fungus residues and distiller's grains as main nutrients, and the materials are simple, easy to obtain and have low acquisition costs. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution in the embodiment of the present invention will be further clearly and completely described below. Obviously, the described embodiment is only a part of the embodiment of the present invention, not all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Example

[0019] A selenium-containing organic biological nutrient solution comprises the following ingredients in percentage by weight: 1% calcium selenite, 0.75% folic acid, 2% zinc sulfate, 3% ferrous sulfate, 8% sugar, 16% nutrient matrix, 1.2% yeast, 9.3% fungus residue, 1% yeast selenium, 16% distiller's grains, and the balance is water.

[0020] In this embodiment, the nutrient matrix is ​​discarded animal tissue.

[0021] In this embodiment, the effective viable count of yeast is 15-22 billion / g.

[0022] A method for processing a selenium-containing organic biological nutrient solution comprises the following steps: (1) placing earthworms in a culture soil containing humus, selenium-rich minerals and humic acid, and adjusting the pH value of the culture soil to 4.9 by acid, and after culturing for 25 days, taking out the earthworms, washing and spitting out the sand, and grinding to obtain earthworm slurry; (2) after fully mixing calcium selenite, folic acid, zinc sulfate, ferrous sulfate, sugar, nutrient matrix, yeast, bacterial residue, yeast selenium, lees and water according to weight percentage, anaerobically fermenting at a temperature of 65° C. for 123 days, stirring once every 12 days during the fermentation period; (3) After the fermentation is completed, filtering to obtain a filtrate; (4) After the earthworm slurry of step (1) and the filtrate of step (3) are fully and homogeneously mixed in a ratio of 1:12, 0.02% of a stabilizer, sodium carboxymethyl cellulose, is added to the mixture, and the stabilizer is removed after filling to obtain a selenium-containing organic biological nutrient solution. Example

[0023] A selenium-containing organic biological nutrient solution comprises the following ingredients in percentage by weight: 1.5% calcium selenite, 0.5% folic acid, 3% zinc sulfate, 2% ferrous sulfate, 12% sugar, 10% nutrient matrix, 1.8% yeast, 8% fungus residue, 1.5% yeast selenium, 10% distiller's grains, and the balance is water.

[0024] In this embodiment, the nutrient matrix is ​​discarded animal tissue.

[0025] In this embodiment, the effective viable count of yeast is 15-22 billion / g.

[0026] A method for processing a selenium-containing organic biological nutrient solution comprises the following steps: (1) placing earthworms in a culture soil containing humus, selenium-rich minerals and humic acid, and adjusting the pH value of the culture soil to 6.0 by acid, and after culturing for 25 days, taking out the earthworms, washing and spitting out the sand, and grinding to obtain earthworm slurry; (2) after fully mixing calcium selenite, folic acid, zinc sulfate, ferrous sulfate, sugar, nutrient matrix, yeast, bacterial residue, yeast selenium, lees and water according to weight percentage, anaerobically fermenting at a temperature of 65° C. for 123 days, stirring once every 12 days during the fermentation period; (3) After the fermentation is completed, filtering to obtain a filtrate; (4) After the earthworm slurry of step (1) and the filtrate of step (3) are fully and homogeneously mixed in a ratio of 1:12, 0.02% of a stabilizer, sodium carboxymethyl cellulose, is added to the mixture, and the stabilizer is removed after filling to obtain a selenium-containing organic biological nutrient solution.

[0027] The invention discloses a processing method of a selenium-containing organic biological nutrient solution, wherein the nutrient solution contains a variety of nutrient elements, amino acids and fungi, can increase the yield of crops, and also contains easily absorbable selenium, which has a rapid effect on crops and an obvious effect. The utilization rate of selenium is high, and the content of organic selenium in agricultural products can be increased, thereby improving the quality of agricultural products. The nutrient solution can also improve the permeability of the soil, reduce the fertilizer residue in the soil, increase the organic matter in the soil, and improve the condition of soil compaction.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A selenium-containing organic biological nutrient solution, characterized in that: The invention comprises the following ingredients in percentage by weight: 0.1-1.5% calcium selenite, 0.5-1.5% folic acid, 1-3% zinc sulfate, 2-4% ferrous sulfate, 6-12% sugar, 10-20% nutrient matrix, 0.5-1.8% yeast, 8-13% fungus residue, 0.5-1.5% yeast selenium, 10-20% distiller's grains, and the balance is water.

2. The selenium-containing organic biological nutrient solution according to claim 1, characterized in that: The calcium selenite is 1%, folic acid is 0.75%, zinc sulfate is 2%, ferrous sulfate is 3%, sugar is 8%, nutrient matrix is ​​16%, yeast is 1.2%, fungus residue is 9.3%, yeast selenium is 1%, distiller's grains is 16%, and the balance is water.

3. The selenium-containing organic biological nutrient solution according to claim 1, characterized in that: The calcium selenite is 1.5%, folic acid is 0.5%, zinc sulfate is 3%, ferrous sulfate is 2%, sugar is 12%, nutrient matrix is ​​10%, yeast is 1.8%, fungus residue is 8%, yeast selenium is 1.5%, distiller's grains is 10%, and the balance is water.

4. The selenium-containing organic biological nutrient solution according to claim 1, characterized in that: The nutrient matrix is ​​discarded animal tissue.

5. The selenium-containing organic biological nutrient solution according to claim 1, characterized in that: The effective live bacteria count of the yeast is 15-22 billion / g.

6. The method for processing the selenium-containing organic biological nutrient solution according to any one of claims 1 to 5, characterized in that: The following steps are involved: (1) After culturing earthworms in culture soil for 25 days, the earthworms are taken out, washed and sand is spitted out, and then ground to obtain earthworm slurry; (2) after fully mixing calcium selenite, folic acid, zinc sulfate, ferrous sulfate, sugar, nutrient matrix, yeast, bacterial residue, yeast selenium, lees and water according to weight percentage, anaerobically fermenting at a temperature of 65° C. for 132 days, stirring once every 12 days during the fermentation period; (3) After the fermentation is completed, filtering to obtain a filtrate; (4) After the earthworm slurry of step (1) and the filtrate of step (3) are fully and homogeneously mixed, a stabilizer is added to obtain a selenium-containing organic biological nutrient solution.

7. The method for processing the selenium-containing organic biological nutrient solution according to claim 6, characterized in that: In the step (4), the mixing ratio of the earthworm slurry to the filtrate is 1:

12.

8. The method for processing the selenium-containing organic biological nutrient solution according to claim 6, characterized in that: The stabilizer in step (4) is sodium carboxymethyl cellulose; the amount of sodium carboxymethyl cellulose added is 0.02% of the mixed solution.

9. The method for processing the selenium-containing organic biological nutrient solution according to claim 6, characterized in that: The culture soil for the earthworms in step (1) includes selenium-rich minerals, and the pH value of the culture soil is 4.8-6.2.