Organic fertilizer fermented by using silk protein liquid and preparation method of organic fertilizer

Abstract

The invention relates to the technical field of agricultural organic fertilizers, in particular to a silk protein liquid fermented organic fertilizer and a preparation method thereof.The organic fertilizer is prepared from 60% of dioscorea cirrhosa residues, 10% of ramulus mori powder and 30% of silk protein liquid, the dioscorea cirrhosa residues are fluffy, rich in plant protein and have the water retention and drought resisting characteristics, and the silk protein liquid is high in organic matter content and has the water retention and drought resisting characteristics; according to the present invention, the mulberry branch powder contains a large amount of trace elements, contains a large amount of crude proteins, has a large fiber content, and provides good effects for later fermentation fertilizer production soil improvement, and the prepared organic fertilizer has a new organic matter standard of 52%, 3% of amino acids, 3% of nitrogen phosphorus potassium and 2% of proteins, has a pH value of about 8.4, and further has characteristics of environmental protection and environmental protection; compared with a common organic fertilizer, the organic fertilizer is high in organic matter content, rich in protein and various amino acids and easier to absorb by crops; the organic fertilizer has obvious effects on increasing the yield and improving the quality, and solves the problems that the existing organic fertilizer is slow in fertilization effect and limited in yield increase.

Description

Technical Field

[0001] The invention relates to the technical field of agricultural organic fertilizers, and in particular to an organic fertilizer fermented by silk protein liquid and a preparation method thereof. Background Art

[0002] Soil is the carrier of water, fertilizer, air and heat needed for plant growth and development. Keeping the soil clean and vigorous is the basic condition for plant growth. Harmful substances exceed the self-purification capacity of the soil and gradually accumulate, causing changes in the composition, structure and function of the soil. Harmful substances are transmitted to agricultural products through the soil and eventually indirectly absorbed by the human body, endangering human health. This is called polluted soil. Even if organic farming is adopted on polluted soil, organic agricultural products cannot be produced.

[0003] Organic fertilizers are mainly derived from plants and / or animals, and are carbon-containing materials that are applied to the soil to provide plant nutrition. The main raw materials of organic fertilizers include biological materials, animal and plant waste, animal feces and plant residues, etc. The toxic and harmful substances in the raw materials are eliminated through fermentation and decomposition. Organic fertilizers are rich in a large number of beneficial substances, including: a variety of organic acids, peptides, and rich nutrients including nitrogen, phosphorus, and potassium. Organic fertilizers can not only provide comprehensive nutrition for crops, but also have a long fertilizer effect. They can increase and renew soil organic matter, promote microbial reproduction, and improve the physical and chemical properties and biological activity of the soil. Compared with conventional chemical fertilizers, they have significant advantages.

[0004] One of the most effective ways to repair polluted soil is to increase the use of organic fertilizers and reduce the use of chemical fertilizers and pesticides. However, the contradiction is that organic fertilizers have a slow effect and can only increase production to a limited extent. Summary of the invention

[0005] The purpose of the present invention is to provide an organic fertilizer fermented with silk protein liquid and a preparation method thereof, aiming to solve the problems of slow fertilization effect and limited increase in yield of existing organic fertilizers.

[0006] To achieve the above objectives, in a first aspect, the present invention provides an organic fertilizer fermented with silk protein liquid, which comprises 60% yam residue, 10% mulberry branch powder and 30% silk protein liquid by weight.

[0007] In a second aspect, the present invention further provides a method for preparing organic fertilizer by fermenting silk protein liquid, which is applied to the method for fermenting organic fertilizer by fermenting silk protein liquid as described in the first aspect above, and is characterized in that it comprises the following steps:

[0008] collecting yam residue, mulberry branch powder and silkworm cocoons, and hydrolyzing the silkworm cocoons to prepare silk protein liquid;

[0009] The yam residue, the mulberry branch powder and the silk protein solution are mixed and pre-fermented based on a ratio to obtain a premixed raw material;

[0010] Controlling the moisture content of the premixed raw material to perform aerobic fermentation for 6 to 7 days, then turning over and spraying the silk protein liquid to decompose the premixed raw material to obtain a fermentation raw material;

[0011] The fermented raw materials are dried, the moisture content is controlled, and they are crushed to prepare organic fertilizer.

[0012] The specific method of collecting yam residue, mulberry branch powder and silkworm cocoons, and hydrolyzing the silkworm cocoons to prepare silk protein liquid is as follows:

[0013] collecting yam residue, mulberry branch powder and silkworm cocoons, and drying the silkworm cocoons to obtain dried silkworm cocoons;

[0014] Boiling the dried silkworm cocoons under alkaline conditions to obtain silk protein liquid;

[0015] The silk protein liquid is filtered to remove impurities to obtain pure silk protein liquid.

[0016] The specific method of boiling the dried silkworm cocoons under alkaline conditions to obtain the silk protein liquid is:

[0017] Put the dried silkworm cocoons into a boiling pot, add caustic soda to boil, and stir regularly to obtain boiling liquid;

[0018] The boiled liquid is discharged and introduced into a collection tank, and allowed to stand and cool to obtain the silk protein liquid.

[0019] The specific method of mixing and pre-fermenting the yam residue, the mulberry branch powder and the silk protein solution based on the ratio to obtain the premixed raw material is as follows:

[0020] The yam residue, the mulberry branch powder and the silk protein solution are mixed according to a certain ratio to obtain a mixture;

[0021] The moisture content of the mixture is controlled, the fermentation temperature is adjusted, and the mixture is inoculated and fermented to obtain a premixed raw material.

[0022] The specific method of controlling the moisture content of the premixed raw material, performing aerobic fermentation for 6 to 7 days, and then turning over and spraying the silk protein liquid to mature the premixed raw material to obtain the fermented raw material is as follows:

[0023] Control the moisture content of the premixed raw materials and place them next to a fermentation tank for aerobic fermentation for 6 to 7 days;

[0024] The premixed raw materials after aerobic fermentation are shoveled into a fermentation tank, turned over, and sprayed with the silk protein solution. The premixed raw materials are fermented for 40 days to decompose the premixed raw materials to obtain fermentation raw materials.

[0025] The specific method of drying the fermentation raw material, controlling the moisture content, and crushing the raw material to prepare the organic fertilizer is as follows:

[0026] Drying the fermentation raw material, controlling the moisture, and aging for 30 days;

[0027] Crushing the aged fermented raw material to prepare granular or powdered organic fertilizer;

[0028] The organic fertilizer is subjected to quality inspection and packaged for storage.

[0029] The quality inspection of the organic fertilizer includes nutrient content inspection, pH value inspection, moisture content control, metal content inspection and appearance and odor inspection; the nutrient content inspection includes main nutrient inspection and organic matter inspection; the main nutrient inspection includes rapid determination of available nitrogen, available phosphorus, available potassium, total nitrogen, total phosphorus and total potassium nutrient content in the organic fertilizer; the pH value inspection standard is 6.5-8.5, and the moisture content is below 30%.

[0030] The invention discloses an organic fertilizer fermented with silk protein liquid and a preparation method thereof. The organic matter content of yam residue is relatively high, reaching more than 70%. The yam residue itself is relatively fluffy, rich in plant protein, and has the characteristics of water retention and drought resistance. The organic matter content of silk protein liquid is relatively high, reaching more than 70%. The silk protein liquid itself contains high molecular fiber protein and amino acids required by various plants. The mulberry branch powder contains a large amount of trace elements, contains relatively more crude protein, and has a relatively high fiber content, which has a good effect on soil improvement by late fermentation production of fertilizers. The organic fertilizer fermented with silk protein liquid is a biological organic fertilizer. It not only has a beautiful appearance, but also can well improve the soil fluffiness, increase the organic matter content of the soil, and improve the soil's antibacterial, disease-resistant and stress-resistant capabilities. Because of the characteristics of silk protein liquid itself, it has a good restorative effect on plant growth. The new standard of organic fertilizer prepared with the above raw materials reaches 52% organic matter, 3% amino acid, 3% nitrogen, phosphorus and potassium, 2% protein, and a pH value of about 8.4. Compared with ordinary organic fertilizers, it has a high organic matter content, is rich in protein and a variety of amino acids, and is easier for crops to absorb; it can effectively improve the disease resistance, drought resistance and stress resistance of crops, and has a significant effect on increasing production and improving quality; the fertilizer itself is weakly alkaline, and can regulate the acid-base balance of the land where more chemical fertilizers are used, solving the problems of slow fertilization effect of existing organic fertilizers and limited yield increase. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0032] Figure 1 The present invention provides a flow chart of a method for preparing organic fertilizer by fermenting silk protein liquid.

[0033] Figure 2 The invention is a flowchart of a specific method of collecting yam residue, mulberry branch powder and silkworm cocoons, and hydrolyzing the silkworm cocoons to prepare silk protein liquid.

[0034] Figure 3 The present invention is a flowchart of a specific method of boiling the dried silk cocoons under alkaline conditions to obtain silk protein liquid.

[0035] Figure 4 It is a flow chart of a specific method of mixing and pre-fermenting the yam residue, the mulberry branch powder and the silk protein liquid based on a ratio to obtain a premixed raw material.

[0036] Figure 5 It is a flowchart of a specific method of controlling the moisture of the premixed raw material to perform aerobic fermentation, fermenting for 6 to 7 days, then turning over and spraying the silk protein liquid to mature the premixed raw material to obtain the fermented raw material.

[0037] Figure 6 The present invention is a flow chart of a specific method for drying the fermentation raw material, controlling the moisture content, and crushing the fermentation raw material to prepare the organic fertilizer. DETAILED DESCRIPTION

[0038] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0039] In a first aspect, the present invention provides an organic fertilizer fermented by using silk protein liquid, which comprises, by weight, 60% of yam residue, 10% of mulberry branch powder and 30% of silk protein liquid.

[0040] In the embodiment of the present invention, the organic matter content of yam residue is relatively high, reaching more than 70%. The yam residue itself is relatively fluffy, rich in plant protein, and has the characteristics of water retention and drought resistance. The organic matter content of silk protein liquid is relatively high, reaching more than 70%. It contains high molecular fiber protein and amino acids required by various plants. Mulberry branch powder contains a large amount of trace elements, contains relatively more crude protein, and has a relatively high fiber content, which has a good effect on the later fermentation production of fertilizer and soil improvement. The organic fertilizer and biological organic fertilizer fermented from silk protein liquid are not only beautiful in appearance, but also can well improve the soil fluffiness, increase the organic matter content of the soil, and improve the soil's antibacterial, disease-resistant and stress-resistant capabilities. Because of the characteristics of silk protein liquid itself, it has a good restorative effect on plant growth. The new standard of organic fertilizer prepared with the above raw materials reaches 52% organic matter, 3% amino acid, 3% nitrogen, phosphorus and potassium, 2% protein, and a pH value of about 8.4. Compared with ordinary organic fertilizers, it has a high organic matter content, is rich in protein and a variety of amino acids, and is easier for crops to absorb; it can effectively improve the disease resistance, drought resistance and stress resistance of crops, and has a significant effect on increasing production and improving quality; the fertilizer itself is weakly alkaline, and can regulate the acid-base balance of the land where more chemical fertilizers are used, solving the problems of slow fertilization effect of existing organic fertilizers and limited yield increase.

[0041] See also Figure 1-Figure 6 In a second aspect, the present invention further provides a method for preparing organic fertilizer by fermenting silk protein solution, which is applied to the method for fermenting organic fertilizer by fermenting silk protein solution as described in the first aspect, and is characterized in that it comprises the following steps:

[0042] S1: collecting yam residue, mulberry branch powder and silkworm cocoons, and hydrolyzing the silkworm cocoons to prepare silk protein liquid;

[0043] In an embodiment of the present invention, yam residue can be replaced with sugarcane bagasse, etc. The organic matter content of yam residue is relatively high, reaching more than 70%. The yam residue itself is relatively fluffy, rich in plant protein, and has the characteristics of water retention and drought resistance. The organic matter content of silk protein liquid is relatively high, reaching more than 70%. It contains high-molecular fiber protein and contains amino acids required by various plants. Mulberry branch powder contains a large amount of trace elements, relatively more crude protein, and relatively high fiber content, which has a good effect on the later fermentation production of fertilizer and soil improvement.

[0044] Specific method:

[0045] S11 collects yam residue, mulberry branch powder and silkworm cocoons, and dries the silkworm cocoons to obtain dried silkworm cocoons;

[0046] S12 boiling the dried silkworm cocoons under alkaline conditions to obtain silk protein liquid;

[0047] Specific method:

[0048] S121: putting the dried silkworm cocoons into a boiling pot, adding caustic soda to the boiling pot, and stirring regularly to obtain a boiling liquid;

[0049] In the embodiment of the present invention, the cocoons are transported from the dryer warehouse to the cocoon boiling production workshop. The pulled cocoons are put into a pot and caustic soda is added in a suitable ratio. The cocoons are boiled at high temperature (90-96°C) under alkaline conditions (such as pH 11-12), and then taken out and put into a container for a second high-temperature boiling. During the production process, workers must wear high-temperature resistant safety gloves and stir the boiling cocoons regularly to make the temperature of the boiling cocoons uniform, so that the boiled silk has better quality.

[0050] S122: draining the boiled liquid and introducing it into a collection pool, letting it stand and cool, to obtain the silk protein liquid.

[0051] In the embodiment of the present invention, during the cocoon boiling process, the waste liquid in the pot is discharged regularly, flows into our collection pool through a pipeline, and is left to cool to room temperature to obtain the silk protein liquid.

[0052] S13: filtering the silk protein liquid to remove impurities and obtain pure silk protein liquid.

[0053] S2: pre-fermenting the yam residue, the mulberry branch powder and the silk protein solution based on a ratio to obtain a premixed raw material;

[0054] Specific method:

[0055] S21: mixing the yam residue, the mulberry branch powder and the silk protein solution based on a ratio to obtain a mixture;

[0056] S22 controls the moisture content of the mixture, adjusts the fermentation temperature, and inoculates the mixture for fermentation to obtain a premixed raw material.

[0057] S3 controls the moisture content of the premixed raw material to perform aerobic fermentation for 6 to 7 days, then turns the premixed raw material over and sprays the silk protein solution to mature the premixed raw material to obtain a fermentation raw material;

[0058] Specific method:

[0059] S31 controls the moisture content of the premixed raw material and places it next to a fermentation tank for aerobic fermentation for 6 to 7 days;

[0060] In the embodiment of the present invention, the premixed raw materials with a moisture content of 40% to 60% are placed next to a fermentation tank for fermentation. Generally, the temperature of the raw materials will rise on the second day, and the temperature can reach 60 to 70 degrees on the fourth day after six or seven days of high-temperature stacking.

[0061] S32: shovel the premixed raw materials after aerobic fermentation into a fermentation tank, turn them over, spray the silk protein solution, and ferment for 40 days to decompose the premixed raw materials to obtain fermentation raw materials.

[0062] In the embodiment of the present invention, a forklift is used to shovel the piled fermented materials into the fermentation tank. The fermentation tank is filled with a spray of silk protein liquid, and the spray is applied while the fermentation tank is turned over and over. The fermentation tank is turned over and over once or twice a day for 40 consecutive days to allow the raw materials to be fully decomposed.

[0063] S4 dries the fermentation raw material, controls the moisture content, and crushes it to prepare an organic fertilizer.

[0064] Specific method:

[0065] S41 drying the fermentation raw material, controlling the moisture, and aging for 30 days;

[0066] S42: crushing the aged fermentation raw material to prepare granular or powdered organic fertilizer;

[0067] In an embodiment of the present invention, organic fertilizer and biological organic fertilizer are fermented from silk protein liquid. Not only is it beautiful in appearance, but it can also improve the soil fluffiness, increase the organic matter content of the soil, and improve the soil's antibacterial, disease-resistant and stress-resistant capabilities. Because of the characteristics of silk protein liquid itself, it has a good repairing effect on plant growth. The new standard of organic fertilizer organic matter reaches 52%, amino acids 3%, nitrogen, phosphorus and potassium 3%, protein 2%, and pH value of about 8.4. Compared with ordinary organic fertilizer, it has a high organic matter content, rich in protein and a variety of amino acids, and is easier for crops to absorb; it can effectively improve the disease resistance, drought resistance and stress resistance of crops, and has a significant effect on increasing production and improving quality; the fertilizer itself is weakly alkaline, and can play a role in regulating the acid-base balance of the land for land that uses more chemical fertilizers.

[0068] S43 performs quality inspection on the organic fertilizer and packages it for storage.

[0069] In an embodiment of the present invention, the quality inspection of the organic fertilizer includes nutrient content inspection, pH value inspection, moisture content control, metal content inspection and appearance and odor inspection, the nutrient content inspection includes main nutrient inspection and organic matter inspection, wherein the main nutrient inspection includes rapid determination of available nitrogen, available phosphorus, available potassium, total nitrogen, total phosphorus and total potassium nutrient content in the organic fertilizer, the pH value inspection standard is 6.5-8.5, and the moisture content is less than 30%.

[0070] The above disclosure is only a preferred embodiment of the present invention of fermenting organic fertilizer using silk protein liquid and the preparation method. Of course, this cannot be used to limit the scope of rights of the present invention. Ordinary technicians in this field can understand that all or part of the processes of the above embodiments and equivalent changes made according to the claims of the present invention still fall within the scope of the invention.

Claims

1. An organic fertilizer fermented using silk protein liquid, characterized in that: The invention comprises 60% of yam residue, 10% of mulberry branch powder and 30% of silk protein liquid by weight.

2. A method for preparing organic fertilizer by fermenting silk protein liquid, applied to the method for fermenting organic fertilizer by fermenting silk protein liquid as claimed in claim 1, characterized in that: The following steps are involved: collecting yam residue, mulberry branch powder and silkworm cocoons, and hydrolyzing the silkworm cocoons to prepare silk protein liquid; The yam residue, the mulberry branch powder and the silk protein solution are mixed and pre-fermented based on a ratio to obtain a premixed raw material; Controlling the moisture content of the premixed raw material to perform aerobic fermentation for 6 to 7 days, then turning over and spraying the silk protein liquid to decompose the premixed raw material to obtain a fermentation raw material; The fermented raw materials are dried, the moisture content is controlled, and they are crushed to prepare organic fertilizer.

3. The method for preparing organic fertilizer by fermenting silk protein liquid as claimed in claim 2, characterized in that: The specific method of collecting yam residue, mulberry branch powder and silkworm cocoons, and hydrolyzing the silkworm cocoons to prepare silk protein liquid is: collecting yam residue, mulberry branch powder and silkworm cocoons, and drying the silkworm cocoons to obtain dried silkworm cocoons; Boiling the dried silkworm cocoons under alkaline conditions to obtain silk protein liquid; The silk protein liquid is filtered to remove impurities to obtain pure silk protein liquid.

4. The method for preparing organic fertilizer by fermenting silk protein liquid as claimed in claim 3, characterized in that: The specific method of boiling the dried silkworm cocoons under alkaline conditions to obtain the silk protein liquid is: Put the dried silkworm cocoons into a boiling pot, add caustic soda to boil, and stir regularly to obtain boiling liquid; The boiled liquid is discharged and introduced into a collection tank, and allowed to stand and cool to obtain the silk protein liquid.

5. The method for preparing organic fertilizer by fermenting silk protein liquid as claimed in claim 2, characterized in that: The specific method of mixing and pre-fermenting the yam residue, the mulberry branch powder and the silk protein solution based on the ratio to obtain the premixed raw material is: The yam residue, the mulberry branch powder and the silk protein solution are mixed according to a certain ratio to obtain a mixture; The moisture content of the mixture is controlled, the fermentation temperature is adjusted, and the mixture is inoculated and fermented to obtain a premixed raw material.

6. The method for preparing organic fertilizer by fermenting silk protein liquid as claimed in claim 2, characterized in that: The specific method of controlling the moisture content of the premixed raw material to perform aerobic fermentation for 6 to 7 days, and then turning over and spraying the silk protein liquid to decompose the premixed raw material to obtain the fermented raw material is as follows: Control the moisture content of the premixed raw materials and place them next to a fermentation tank for aerobic fermentation for 6 to 7 days; The premixed raw materials after aerobic fermentation are shoveled into a fermentation tank, turned over, and sprayed with the silk protein solution. The premixed raw materials are fermented for 40 days to decompose the premixed raw materials to obtain fermentation raw materials.

7. The organic fertilizer fermented by silk protein liquid and the preparation method thereof as claimed in claim 2, characterized in that: The specific method of drying the fermentation raw materials, controlling the moisture content, and crushing to prepare the organic fertilizer is: Drying the fermentation raw material, controlling the moisture, and aging for 30 days; Crushing the aged fermented raw material to prepare granular or powdered organic fertilizer; The organic fertilizer is subjected to quality inspection and packaged for storage.

8. The organic fertilizer fermented by silk protein liquid and the preparation method thereof according to claim 7, characterized in that: The quality inspection of the organic fertilizer includes nutrient content inspection, pH value inspection, moisture content control, metal content inspection and appearance and odor inspection. The nutrient content inspection includes main nutrient inspection and organic matter inspection. The main nutrient inspection includes rapid determination of the nutrient contents of available nitrogen, available phosphorus, available potassium, total nitrogen, total phosphorus and total potassium in the organic fertilizer. The pH value inspection standard is 6.5-8.5, and the moisture content is below 30%.

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