CN110483110B - Amino acid liquid fertilizer and preparation method thereof - Google Patents
Amino acid liquid fertilizer and preparation method thereof Download PDFInfo
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- CN110483110B CN110483110B CN201910787821.7A CN201910787821A CN110483110B CN 110483110 B CN110483110 B CN 110483110B CN 201910787821 A CN201910787821 A CN 201910787821A CN 110483110 B CN110483110 B CN 110483110B
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
- C05F1/00—Fertilisers made from animal corpses, or parts thereof
- C05F1/002—Fertilisers made from animal corpses, or parts thereof from fish or from fish-wastes
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/40—Bio-organic fraction processing; Production of fertilisers from the organic fraction of waste or refuse
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Abstract
The invention discloses an amino acid liquid fertilizer and a preparation method thereof, belonging to the technical field of fertilizers. The provided amino acid liquid fertilizer comprises the following raw materials in parts by weight: 50-80 parts of animal wastes, 10-30 parts of animal fur, 30-50 parts of fish product wastes, 50-80 parts of bean product byproducts, 20-30 parts of activated sludge and 300 parts of water 200-. The amino acid liquid fertilizer provided by the invention is prepared by fermenting, ultrasonic treating, oxidizing and fermenting protein-rich raw materials such as animal wastes, animal skins, fish product wastes, bean product byproducts and the like, does not need proteolytic enzyme with higher cost for hydrolysis, is beneficial to environmental protection and effective utilization of resources, contains rich amino acid, and has remarkable improvement on the yield and quality of melons, fruits and vegetables.
Description
Technical Field
The invention belongs to the technical field of fertilizers, and particularly relates to an amino acid liquid fertilizer and a preparation method thereof.
Background
The fertilizer is a substance which provides one or more nutrient elements necessary for plant growth, improves the soil property and improves the soil fertility level, and is one of the material bases of agricultural production. The fertilizer can be divided into solid fertilizer and liquid fertilizer according to the physical state of the fertilizer, and along with the development of green agriculture and ecological agriculture, the conventional solid fertilizer is gradually replaced by the liquid fertilizer due to low utilization rate, easy soil hardening, difficult plant absorption, a series of environmental problems and the like.
The liquid fertilizer is also called liquid fertilizer for short, and is a novel fertilizer with high concentration, high fertilizer efficiency, multifunction, full nutrition and synergism. Compared with solid fertilizers, the liquid fertilizer has the following advantages: 1) can be absorbed by plants in a very short time, avoids loss and greatly improves the utilization rate; 2) after being applied, the fertilizer can be uniformly distributed in soil, so that the problems of soil hardening or uneven plant absorption can not be caused; 3) the fertilizer can be applied by adopting a spray irrigation, drip irrigation or irrigation mode, is convenient and quick, and saves time and labor; 4) the fertilizer quality is not different due to segregation generated in the storage and transportation process of the solid fertilizer; 5) the product has no problems of moisture absorption and caking; 6) can be mixed with bactericide, pesticide, herbicide, etc. and can be mixed uniformly; 7) the environment pollution is not easy to generate during the fertilizer production process and after the fertilizer is applied. Therefore, the liquid fertilizer is more beneficial to the high-quality production of crops.
Currently, most of amino acid liquid fertilizers on the market are prepared by hydrolyzing raw materials rich in protein by using proteolytic enzyme or directly adding amino acid, for example, CN109650946A discloses a biological preparation method for producing amino acid liquid fertilizers by using waste feathers. CN105254344A discloses a method for preparing an amino acid liquid fertilizer by using tilapia mossambica processing waste, which comprises the following steps: selecting tilapia processing waste, stirring to prepare fish paste, adding water and compound protease BJ101 into the fish paste, carrying out enzymolysis, then carrying out enzyme deactivation, filtering, and refrigerating the obtained filtrate to obtain the amino acid liquid fertilizer. CN105218263A discloses an amino acid liquid fertilizer, which is prepared by adding 112-130 kg of amino acid, 334-44 kg of zinc sulfate, 40-50 kg of borax, 58-68 kg of ferrous sulfate, 100-110 kg of magnesium sulfate, 10kg of chelating agent and 400-500 kg of water into a reaction kettle for chelating, and adding water to adjust the volume to 1000L. The methods in the prior art for producing the amino acid liquid fertilizer have high cost and are not suitable for producing the amino acid liquid fertilizer on a large scale.
Disclosure of Invention
The invention aims to produce an amino acid liquid fertilizer which contains a plurality of amino acids and has high amino acid content by utilizing animal wastes, animal skins and hair, fish product wastes, bean product byproducts and the like which are rich in protein.
The technical scheme adopted by the invention is as follows.
One aspect of the invention provides an amino acid liquid fertilizer, which comprises the following raw materials in parts by weight: 50-80 parts of animal wastes, 10-30 parts of animal fur, 30-50 parts of fish product wastes, 50-80 parts of bean product byproducts, 20-30 parts of activated sludge and 300 parts of water 200-.
The animal waste is selected from one or more of the following: chicken manure, pig manure, sheep manure and cow manure.
The animal fur is selected from one or more of the following: chicken feather, duck feather, goose feather and wool.
The fish product waste is selected from one or more of the following: fish head, fish steak, fish skin, fish viscera, fish gill, fish fin, and fish scale.
The bean product by-product is selected from one or more of the following: bean dregs, bean cake and bean pulp.
The invention also provides a preparation method of the amino acid liquid fertilizer, which comprises the following steps:
1) mixing 10-30 parts of cut animal skin and hair, 30-50 parts of fish product waste, 50-80 parts of crushed bean product by-product, 50-80 parts of animal manure and 20-30 parts of activated sludge to obtain a first mixture;
2) adding 200-300 parts of water into the first mixture obtained in the step 1), performing anaerobic fermentation treatment, and obtaining a first fermentation product after the fermentation is finished;
3) carrying out ultrasonic treatment and oxidation on the first fermentation product obtained in the step 2) to obtain oxidized slurry;
4) carrying out anaerobic fermentation treatment and intermittent ultrasonic treatment on the oxidized pulp obtained in the step 3), and obtaining a second fermentation product after the fermentation is finished;
5) filtering the second fermentation product obtained in the step 4) to obtain filtrate which is the prepared amino acid liquid fertilizer.
Pulverizing the bean product by-product to 200-300 mesh in the step 1); and/or
The anaerobic fermentation conditions in the step 2) are as follows: anaerobic fermentation at 40-50 deg.C for 30-40 days.
The power of the ultrasonic treatment in the step 3) is 100-150W, and the ultrasonic treatment time is 20-30 min; and/or
The oxidation in the step 3) adopts ozone for oxidation and stirring, wherein the ozone introducing speed is 150mg/h, the oxidation time is 20min-30min, and the stirring rotating speed is 240 r/min.
The temperature of the anaerobic fermentation in the step 4) is 20-30 ℃, and the anaerobic fermentation time is 10-20 days.
The power of the intermittent ultrasonic treatment in the step 4) is 200-300W, the treatment is carried out for 1-2 times every day in the anaerobic fermentation period in the step 4), and the time of each ultrasonic treatment is 5-10 min.
According to the preparation method of the amino acid liquid fertilizer provided by the technical scheme, firstly, raw materials such as animal wastes rich in protein, animal skins, fish product wastes and bean product byproducts are subjected to fermentation treatment, and the filtrate of the obtained first fermentation product contains rich water-soluble protein, amino acid and other organic and inorganic nutrient substances; then, carrying out ultrasonic treatment and ozone oxidation treatment on the first fermentation product, wherein the combination of the ultrasonic treatment and the ozone oxidation treatment can obviously improve the content of polypeptide and amino acid in the filtrate and simultaneously reduce the content of protein in the filtrate; and then, anaerobic fermentation treatment is carried out on the oxidized pulp again, and ultrasonic treatment is carried out intermittently while fermentation is carried out, so that the content of amino acid in the filtrate of the second fermentation product obtained after fermentation is finished is obviously improved, and the content of polypeptide is obviously reduced. Therefore, the amino acid liquid fertilizer prepared by the method provided by the invention contains abundant amino acids, has higher amino acid content, and also contains other nutrient elements required by plant growth, such as nitrogen, phosphorus, potassium, calcium, magnesium, sulfur, boron, zinc, molybdenum, copper, manganese, iron and other nutrient elements. And harmful substances such as pathogenic bacteria, pest eggs and the like in the raw materials can be killed in the two fermentation processes, so that the prepared liquid fertilizer is safe and reliable, and the yield and the quality of the fruits and vegetables can be obviously improved.
The amino acid liquid fertilizer provided by the invention utilizes raw materials such as animal wastes, animal skins and hair, fish product wastes and bean product byproducts rich in protein, and protein is not required to be hydrolyzed by using proteolytic enzyme, so that the cost is low, the discharge of wastes can be reduced, the environment is protected, the effective utilization of resources is facilitated, and the prepared amino acid liquid fertilizer has rich amino acid types and higher amino acid content, is a safe and efficient agricultural amino acid liquid fertilizer, can obviously improve the yield and quality of melons, fruits and vegetables, and has the three benefits of ecology, society and economy.
Detailed Description
Ozone is a strong oxidizing agent that can denature and degrade proteins. However, while the protein is subjected to oxidative denaturation degradation by ozone, the addition concentration of ozone and the oxidation time should be strictly controlled, and an excessively long time may cause the organic nitrogen form in the protein to be converted into the inorganic nitrogen form, thereby completely degrading the amino acid. In addition, the ozone oxidation can also degrade the insoluble or insoluble matter of the high molecule into soluble matter of low molecule, and degrade the microbial cells to release the nutrient substances such as protein in the cells, so the liquid fertilizer with more abundant nutrition can be obtained by treating the fermentation product with ozone.
Ultrasonic waves are a unique energy input means with high efficiency that cannot be achieved by light, electricity, heat alone. When ultrasonic waves are transmitted in liquid, liquid molecules or other molecules in the liquid are sometimes pulled and sometimes pressed, and in the process of rapidly changing the pulling and pressing, cavities which are close to vacuum or contain a small amount of gas are generated, so that a series of effects of crushing, emulsifying, dispersing, promoting chemical reaction and the like can be generated. Therefore, the hydrophilic groups of the protein can be exposed by an ultrasonic mode, and the solubility of the protein can be obviously improved, so that the dissolution rate of the protein is improved.
Based on the principle, the invention provides a preparation method of an amino acid liquid fertilizer, and provides the amino acid liquid fertilizer with rich amino acid types and high content based on the method.
The present invention will be described in detail with reference to the following specific embodiments.
The preparation method of the amino acid liquid fertilizer provided by the invention comprises the following steps:
1) mixing 10-30 parts of cut animal skin and hair, 30-50 parts of fish product waste, 50-80 parts of crushed bean product by-product, 50-80 parts of animal manure and 20-30 parts of activated sludge to obtain a first mixture; wherein the animal fur is selected from one or more of chicken feather, duck feather, goose feather and wool; the fish product waste is selected from one or more of fish head, fish steak, fish skin, fish viscera, fish gill, fish fin and fish scale; the bean product by-product is selected from one or more of bean dregs, bean cake and bean pulp; the animal manure is selected from one or more of chicken manure, pig manure, sheep manure and cow manure; when the bean product by-product is crushed, the bean product by-product is crushed and sieved by a 200-mesh and 300-mesh sieve.
2) Adding 200-300 parts of water into the first mixture obtained in the step 1), performing anaerobic fermentation treatment, and obtaining a first fermentation product after the fermentation is finished; wherein anaerobic fermentation is carried out in the fermentation cylinder, and this fermentation cylinder is provided with agitating unit and breather, and the anaerobic fermentation condition is: anaerobic fermentation at 40-50 deg.C for 30-40 days; in the process, protein in the raw material is dissolved out, part of the protein can be hydrolyzed into amino acid under the action of part of microorganisms existing in the activated sludge, and meanwhile, more insoluble or difficultly soluble macromolecular organic matters and microorganisms also exist in the first fermentation product.
3) Carrying out ultrasonic treatment and oxidation on the first fermentation product obtained in the step 2) to obtain oxidized slurry; wherein the ultrasonic treatment and the oxidation treatment are simultaneously carried out in the fermentation tank, and the ultrasonic treatment and the oxidation treatment are simultaneously stirred, wherein the power of the ultrasonic treatment is 100-150W, and the time of the ultrasonic treatment is 20-30 min; the oxidation adopts ozone for oxidation, the introduction speed of the ozone is 100-150mg/h, the oxidation time is 20-30min, and the stirring speed is 180-240 r/min; the dissolution rate of the protein can be obviously improved through ultrasonic treatment in the process, ozone oxidation treatment plays roles of degrading and denaturing the protein on one hand, and degrading macromolecular organic substances into micromolecular substances and degrading microbial cells on the other hand, so that nutrient substances in the microbial cells are released, and after the protein existing in the microbial cells is dissolved out of the cells, the protein is further degraded due to the existence of ozone. Therefore, in the process, under the combined action of the ultrasound and the ozone, the protein content in the solution can be obviously reduced, and meanwhile, the content of the polypeptide and the amino acid can be obviously improved. However, the inventors have found that in this process, the concentration of ozone and the treatment time must be strictly controlled to prevent a large amount of amino acids present in the solution from being further oxidatively degraded into small molecular inorganic substances, and therefore the ozone is preferably introduced at a rate not exceeding 200mg/h, and the ozone treatment time is preferably not exceeding 40 min.
4) Carrying out anaerobic fermentation treatment and intermittent ultrasonic treatment on the oxidized pulp obtained in the step 3), and obtaining a second fermentation product after the fermentation is finished; wherein the temperature of anaerobic fermentation is 20-30 ℃, and the time of anaerobic fermentation is 10-20 days; the intermittent ultrasonic treatment is 1-2 times per day in the anaerobic fermentation treatment period, the power of the ultrasonic treatment is 200-300W, and the time of each ultrasonic treatment is 5-10 min. In the process, the inventor finds that the content of amino acid in the solution can be remarkably increased by the aid of intermittent ultrasonic treatment in the anaerobic fermentation treatment process, and correspondingly, the content of polypeptide in the solution is reduced, so that the solution has high content of amino acid after fermentation is finished.
5) Filtering the second fermentation product obtained in the step 4) to obtain filtrate which is the prepared amino acid liquid fertilizer.
When the amino acid liquid fertilizer is used, water can be added to dilute the amino acid liquid fertilizer. When the fertilizer is applied by root application or irrigation, the fertilizer is diluted by 300 times, and the application amount is 40-80 kg per mu; when the fertilizer is applied by adopting a foliar fertilization mode, the fertilizer is diluted by 300 times and 400 times, and the application amount is 40-80 kilograms per mu. The amino acid liquid fertilizer disclosed by the invention can be suitable for melon and fruit vegetables such as wheat, corn, soybean, peanut, apple, pear, pumpkin, watermelon, hot pepper, tomato, cucumber, kidney bean, eggplant, spinach, celery, water spinach, Chinese cabbage (Shanghai green), cabbage and leaf lettuce, can be used for topdressing at a seedling stage, a growth stage, a flowering stage or a fruit stage after seed germination, and can promote the growth of the melon and fruit vegetables and the improvement of the yield and quality of the melon and fruit vegetables.
In the following, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. Accordingly, the following description is to be regarded as illustrative in nature and not as restrictive.
The methods used in the following examples are conventional methods unless otherwise specified.
Example 1:
1) 10 parts of animal fur (chicken feather: goose feather =1: 1), 30 parts of fish product waste, 50 parts of bean dregs crushed to pass through a 200-mesh sieve, 50 parts of animal manure (chicken manure: pig manure =1: 1), 20 parts of activated sludge to obtain a first mixture;
2) adding 200 parts of water into the first mixture obtained in the step 1), uniformly stirring, placing in a fermentation tank for anaerobic fermentation treatment, carrying out anaerobic fermentation at 40 ℃ for 40 days, and obtaining a first fermentation product after the fermentation is finished;
3) carrying out ultrasonic treatment and oxidation on the first fermentation product obtained in the step 2), wherein the power of the ultrasonic treatment is 100W, and the ultrasonic treatment time is 30 min; the oxidation adopts ozone for oxidation and stirring, wherein the ozone introducing speed is 100mg/h, the oxidation time is 30min, and the stirring rotating speed is 180 r/min; obtaining oxidized slurry;
4) carrying out anaerobic fermentation treatment and intermittent ultrasonic treatment on the oxidized pulp obtained in the step 3), wherein the temperature of anaerobic fermentation is 20 ℃, the anaerobic fermentation time is 20 days, the power of the intermittent ultrasonic treatment is 200W, carrying out ultrasonic treatment for 1 time every day within 20 days of anaerobic fermentation, the time of each ultrasonic treatment is 10min, and obtaining a second fermentation product after the fermentation is finished;
5) filtering the second fermentation product obtained in the step 4) to obtain filtrate which is the prepared amino acid liquid fertilizer.
Example 2:
1) 30 parts of animal fur (chicken feather: goose feather =1: 1), 50 parts of fish product waste, 80 parts of bean dregs crushed to pass through a 300-mesh sieve, 80 parts of animal manure (chicken manure: pig manure =1: 1), 30 parts of activated sludge to obtain a first mixture;
2) adding 300 parts of water into the first mixture obtained in the step 1), uniformly stirring, placing in a fermentation tank for anaerobic fermentation treatment, carrying out anaerobic fermentation at 50 ℃ for 30 days, and obtaining a first fermentation product after the fermentation is finished;
3) carrying out ultrasonic treatment and oxidation on the first fermentation product obtained in the step 2), wherein the power of the ultrasonic treatment is 150W, and the ultrasonic treatment time is 20 min; the oxidation adopts ozone for oxidation and stirring, wherein the ozone introducing speed is 150mg/h, the oxidation time is 20min, and the stirring rotating speed is 240 r/min; obtaining oxidized slurry;
4) carrying out anaerobic fermentation treatment and intermittent ultrasonic treatment on the oxidized pulp obtained in the step 3), wherein the temperature of anaerobic fermentation is 30 ℃, the anaerobic fermentation time is 10 days, the power of the intermittent ultrasonic treatment is 300W, carrying out ultrasonic treatment for 2 times every day within 10 days of anaerobic fermentation, the time of each ultrasonic treatment is 5min, and obtaining a second fermentation product after the fermentation is finished;
5) filtering the second fermentation product obtained in the step 4) to obtain filtrate which is the prepared amino acid liquid fertilizer.
Example 3:
1) 30 parts of animal fur (chicken feather: goose feather =1: 1), 50 parts of fish product waste, 80 parts of bean dregs crushed to pass through a 300-mesh sieve, 80 parts of animal manure (chicken manure: pig manure =1: 1), 30 parts of activated sludge to obtain a first mixture;
2) adding 300 parts of water into the first mixture obtained in the step 1), uniformly stirring, placing in a fermentation tank for anaerobic fermentation treatment, carrying out anaerobic fermentation at 50 ℃ for 30 days, and obtaining a first fermentation product after the fermentation is finished;
3) carrying out ultrasonic treatment and oxidation on the first fermentation product obtained in the step 2), wherein the power of the ultrasonic treatment is 150W, and the ultrasonic treatment time is 20 min; the oxidation adopts ozone for oxidation and stirring, wherein the ozone introducing speed is 200mg/h, the oxidation time is 40min, and the stirring rotating speed is 240 r/min; obtaining oxidized slurry;
4) carrying out anaerobic fermentation treatment and intermittent ultrasonic treatment on the oxidized pulp obtained in the step 3), wherein the temperature of anaerobic fermentation is 30 ℃, the anaerobic fermentation time is 10 days, the power of the intermittent ultrasonic treatment is 300W, carrying out ultrasonic treatment for 2 times every day within 10 days of anaerobic fermentation, the time of each ultrasonic treatment is 5min, and obtaining a second fermentation product after the fermentation is finished;
5) filtering the second fermentation product obtained in the step 4) to obtain filtrate which is the prepared amino acid liquid fertilizer.
Example 4:
in this embodiment, in the processes of preparing the amino acid liquid fertilizer in the above embodiments 1, 2, and 3, the first fermentation product obtained in the step 2), the oxidized slurry obtained in the step 3), and the second fermentation product obtained in the step 4) are filtered to obtain a first filtrate, a second filtrate, and a third filtrate (the third filtrate is the prepared amino acid liquid fertilizer), respectively, the polypeptide content and the free amino acid content in the first filtrate, the second filtrate, and the third filtrate in the above embodiments 1, 2, and 3 are measured according to the method in the amino acid-containing water-soluble fertilizer agricultural industry standard (NY/T1975-; the peptide content is determined according to the method in the national standard of soybean peptide powder (GB/T22492-. The measurement results are shown in table 1 below.
Table 1: measuring the content of amino acids and peptides in the first filtrate, the second filtrate and the third filtrate
As can be seen from the data in table 1 above, in the preparation methods of the amino acid liquid fertilizers provided in examples 1 and 2, the ultrasonic treatment and the ozone oxidation treatment are combined after the first fermentation is finished, so that the contents of peptides and free amino acids in the filtrate can be significantly increased, and the increased contents of peptides and amino acids are derived from proteins, so that the contents of proteins in the process should be significantly reduced; the subsequent combination of anaerobic fermentation and batch sonication significantly increases the free amino acid content of the filtrate, while the peptide content is significantly reduced, and thus the amount of these increased amino acids should be due to hydrolysis of the peptide. The preparation method of example 3 differs from the preparation method of example 2 only in that the ozone feed rate and the ozone oxidation time are increased in the combined treatment of ultrasound and ozone oxidation, and it can be seen that the content of amino acids and peptides in the second filtrate of example 3 is significantly lower than that of the second filtrate of example 2, probably because at higher ozone concentrations and higher oxidation times, a large part of the proteins, peptides and amino acids in the solution are oxidized by ozone to inorganic substances, resulting in a significant decrease in the content of amino acids and peptides in the filtrate, and therefore higher ozone concentrations and longer oxidation times should be avoided in production. If the organic liquid fertilizer with higher content of inorganic nitrogen is produced, the oxidation can be carried out by higher concentration of ozone and longer oxidation time, and the ultrasonic treatment also has the effect of increasing the oxidation rate.
Example 5:
in this example, the amino acid liquid fertilizer obtained in example 2 was diluted 400 times and then applied to the leaf surface of sweet pepper (variety of lotus pepper 13). Spraying diluted amino acid liquid fertilizer on leaf surfaces every 15 days from the field planting to the mature period of the sweet peppers, wherein the application amount per mu is 60 kilograms (test group); the pimento of the control group did not have any fertilizer applied after the colonization. When the control group and the test group are used for soil preparation, 75kg of compound fertilizer is applied as a base fertilizer. Results statistics are shown in table 2 below.
Table 2: sweet pepper fruiting statistics
The results in table 2 show that the amino acid liquid fertilizer provided by the invention can be used for remarkably improving the yield and quality of the sweet peppers and improving the fruit setting rate by spraying in the growth process of the sweet peppers, wherein the yield of a single fruit is improved by 45.8%, and the yield per mu is improved by 75%.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. The amino acid liquid fertilizer is characterized by comprising the following raw materials in parts by weight: 50-80 parts of animal wastes, 10-30 parts of animal fur, 30-50 parts of fish product wastes, 50-80 parts of bean product byproducts, 20-30 parts of activated sludge and 300 parts of water 200-;
the preparation method of the amino acid liquid fertilizer comprises the following steps:
1) mixing 10-30 parts of cut animal skin and hair, 30-50 parts of fish product waste, 50-80 parts of crushed bean product by-product, 50-80 parts of animal manure and 20-30 parts of activated sludge to obtain a first mixture;
2) adding 200-300 parts of water into the first mixture obtained in the step 1), and carrying out first anaerobic fermentation treatment to obtain a first fermentation product after the fermentation is finished; wherein the first anaerobic fermentation conditions are: anaerobic fermentation at 40-50 deg.C for 30-40 days;
3) carrying out ultrasonic treatment and oxidation on the first fermentation product obtained in the step 2) to obtain oxidized slurry; wherein the power of the ultrasonic treatment is 100-150W, and the ultrasonic treatment time is 20-30 min; the oxidation adopts ozone for oxidation and stirring, wherein the introduction speed of the ozone is 150mg/h, the oxidation time is 20min-30min, and the stirring speed is 240 r/min;
4) carrying out second anaerobic fermentation treatment and intermittent ultrasonic treatment on the oxidized pulp obtained in the step 3), and obtaining a second fermentation product after the fermentation is finished; wherein the temperature of the second anaerobic fermentation is 20-30 ℃ and the time is 10-20 days; the power of the intermittent ultrasonic treatment is 200-300W, the treatment is carried out for 1-2 times every day in the anaerobic fermentation period in the step 4), and the time of each ultrasonic treatment is 5-10 min;
5) filtering the second fermentation product obtained in the step 4) to obtain filtrate which is the prepared amino acid liquid fertilizer.
2. The amino acid liquid fertilizer of claim 1, wherein the animal manure is selected from one or more of the following: chicken manure, pig manure, sheep manure and cow manure.
3. The amino acid liquid fertilizer as claimed in claim 1, wherein the animal fur is selected from one or more of the following: chicken feather, duck feather, goose feather and wool.
4. The amino acid liquid fertilizer of claim 1, wherein the fish product waste is selected from one or more of the following: fish head, fish steak, fish skin, fish viscera, fish gill, fish fin, and fish scale.
5. The amino acid liquid fertilizer as claimed in claim 1, wherein the bean product by-product is selected from one or more of the following: bean dregs, bean cake and bean pulp.
6. The amino acid liquid fertilizer as claimed in claim 1, wherein the bean product by-product is pulverized to pass through a 200-300 mesh sieve in step 1).
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| CN111777449A (en) * | 2020-06-22 | 2020-10-16 | 广西伟恒生态农业有限公司 | Biological organic silicon calcium magnesium fertilizer and preparation method thereof |
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| CN1376651A (en) * | 2002-04-26 | 2002-10-30 | 袁登辉 | Process for preparing fermented organic amino acid fertilizer |
| CN101786931B (en) * | 2010-02-08 | 2013-01-02 | 徐贵阁 | Green bioactive organic fertilizer |
| CN102173910A (en) * | 2011-03-17 | 2011-09-07 | 李大鹏 | Marine byproduct fermentation concentration composite fertilizer and production method thereof |
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| CN103804034B (en) * | 2014-03-11 | 2015-09-30 | 南通禾宝生物科技有限公司 | The preparation method of amino acid foliage fertilizer |
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| CN108101674A (en) * | 2018-03-07 | 2018-06-01 | 四川农业大学 | A kind of amino acid organic liquid fertilizer and preparation method thereof |
| CN109180378A (en) * | 2018-09-15 | 2019-01-11 | 湖南泰谷生态工程有限公司 | A method of Amino acid liquid fertilizer is prepared using dead fish shrimp |
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