CN112279736A - Liquid biological organic fertilizer and preparation method thereof - Google Patents
Liquid biological organic fertilizer and preparation method thereof Download PDFInfo
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- CN112279736A CN112279736A CN202011010640.2A CN202011010640A CN112279736A CN 112279736 A CN112279736 A CN 112279736A CN 202011010640 A CN202011010640 A CN 202011010640A CN 112279736 A CN112279736 A CN 112279736A
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
- C05G3/80—Soil conditioners
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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
- C05F17/00—Preparation of fertilisers characterised by biological or biochemical treatment steps, e.g. composting or fermentation
- C05F17/20—Preparation of fertilisers characterised by biological or biochemical treatment steps, e.g. composting or fermentation using specific microorganisms or substances, e.g. enzymes, for activating or stimulating the treatment
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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
- C05F9/00—Fertilisers from household or town refuse
- C05F9/04—Biological compost
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G5/00—Fertilisers characterised by their form
- C05G5/20—Liquid fertilisers
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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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- Soil Sciences (AREA)
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Abstract
The invention discloses a liquid biological organic fertilizer and a preparation method thereof. The liquid biological organic fertilizer is prepared from biogas slurry, lactic acid bacteria, saccharomycetes and spore bacteria. The raw materials comprise the following components in parts by weight: 750 portions of biogas slurry, 1000 portions of lactobacillus powder, 0.3 to 5 portions of saccharomycete powder and 0.5 to 2 portions of spore-bacillus powder. The preparation method of the fertilizer comprises the following steps: step 1, preparing a mixed material, namely uniformly mixing biogas slurry with lactobacillus powder, saccharomycete powder and spore bacterium powder to obtain a mixed material; and 2, fermenting, wherein the initial pH of the material is natural, fermenting for more than 16 days at the temperature of more than 20 ℃, irradiating the fermented liquid with red light, finishing fermentation when the red light is detected to penetrate through the fermented liquid, and taking the fermented product as the liquid bio-organic fertilizer. When the fertilizer is applied to soil, the physical and chemical properties of the soil can be improved, the application amount of the fertilizer is reduced, the crop yield is increased, and the pollution to the agricultural ecological environment is reduced.
Description
Technical Field
The invention belongs to the technical field of fertilizers, and particularly relates to a liquid bio-organic fertilizer and a preparation method thereof.
Background
With the development of society and the improvement of living standard of people, healthy, environment-friendly and safe agricultural products become hot points of attention of people. At present, in the aspect of crop planting, farmers mostly apply chemical fertilizers in order to increase yield and income, but the application of the chemical fertilizers is often excessive, so that the structure and the property of soil are damaged, the water and fertilizer retention capability of the soil is poor, the actual utilization rate of the chemical fertilizers is low, and the deterioration of the agricultural ecological environment is caused.
The biological organic fertilizer can increase the organic matter content of soil, improve the physical and chemical properties of the soil and restore the microbial community of the soil, and is an important means for effectively solving the problem of unreasonable application of chemical fertilizers.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a liquid biological organic fertilizer and a preparation method thereof, which are used for converting macromolecular substances in biogas slurry into small molecules which are easy to absorb by crops, providing nutrition for the growth of the crops, improving the physicochemical property of soil, reducing the application amount of a chemical fertilizer and reducing the pollution of the agricultural ecological environment.
On one hand, the invention provides a liquid bio-organic fertilizer which is prepared from raw materials consisting of biogas slurry, lactobacillus powder, saccharomycete powder and spore bacillus powder.
Preferably, the liquid bio-organic fertilizer is prepared by uniformly mixing the biogas slurry, the lactic acid bacteria powder, the saccharomycete powder and the spore bacteria powder and then fermenting at the temperature of more than 20 ℃ for more than 16 days.
Preferably, the raw material comprises, by weight, 750-1000 parts of the biogas slurry, 0.3-5 parts of the lactobacillus powder, 0.2-3 parts of the saccharomycete powder and 0.5-2 parts of the spore bacillus powder.
Preferably, the raw materials comprise 750 parts of the biogas slurry, 2.3 parts of the lactobacillus powder, 0.2 part of the saccharomycete powder and 0.5 part of the spore bacillus powder by weight.
Preferably, the raw materials comprise 830 parts of the biogas slurry, 0.3 part of the lactobacillus powder, 3 parts of the saccharomycete powder and 1.3 parts of the spore bacillus powder by weight.
Preferably, the raw materials comprise 910 parts of the biogas slurry, 4.1 parts of the lactobacillus powder, 1.7 parts of the saccharomycete powder and 1 part of the spore bacillus powder by weight.
Preferably, the raw materials comprise, by weight, 1000 parts of the biogas slurry, 5 parts of the lactic acid bacteria powder, 2.3 parts of the saccharomycete powder and 2 parts of the spore bacteria powder.
Preferably, the bacterium content of the lactobacillus powder is more than or equal to 1.5 multiplied by 1010cfu/g, the bacteria content of the saccharomycete powder is more than or equal to 1.0 multiplied by 1010cfu/g, the bacterium content of the spore bacterium powder is more than or equal to 1.0 multiplied by 1010cfu/g。
Preferably, the lactobacillus powder contains lactobacillus rhamnosus and lactobacillus delbrueckii, the saccharomyces powder contains saccharomyces cerevisiae and candida utilis, and the bacillus powder contains bacillus licheniformis and clostridium butyricum.
On the other hand, the invention also provides a preparation method of the liquid bio-organic fertilizer, which comprises the following steps:
step 1, preparing a mixed material, namely uniformly mixing biogas slurry with lactobacillus powder, saccharomycete powder and spore bacterium powder to obtain a mixed material;
and 2, fermenting, wherein the initial pH of the material is natural, fermenting for more than 16 days at the temperature of more than 20 ℃, irradiating the fermented liquid with red light, finishing fermentation when the red light can be detected to penetrate through the fermented liquid, and taking the fermented product as the bio-organic fertilizer.
The liquid bio-organic fertilizer can convert macromolecular substances in the biogas slurry into micromolecules which are easy to absorb by crops, and when the liquid bio-organic fertilizer is applied to soil, the physical and chemical properties of the soil can be improved, the application amount of a chemical fertilizer is reduced, the crop yield is increased, and the pollution to the agricultural ecological environment is reduced.
Detailed Description
The invention will be further described with reference to specific embodiments, and the advantages and features of the invention will become apparent as the description proceeds. It should be understood that the examples are illustrative only and are not limiting upon the scope of the invention. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention, and that such changes and modifications may be made without departing from the spirit and scope of the invention.
In the following description, all methods involved are conventional in the art unless otherwise specified. The starting materials mentioned are all those which are commercially available from the public unless otherwise specified.
The invention prepares the liquid bio-organic fertilizer by fermenting the biogas slurry with dry lactic acid bacteria, saccharomycetes and spore bacteria. The invention can improve the physical and chemical properties of soil, reduce the application amount of chemical fertilizer, increase the crop yield and reduce the pollution of agricultural ecological environment when being applied to the soil.
In a specific embodiment of the invention, the liquid bio-organic fertilizer is prepared from raw materials consisting of biogas slurry, lactobacillus powder, saccharomycete powder and bacillus powder. The specific preparation process comprises the following steps: step 1, preparing a mixed material; and 2, fermenting the mixed material.
In the step 1 of preparing the mixed material, various raw material components are weighed according to a preset weight ratio, and then all the raw materials are stirred and mixed. The weight ratio of each component in the raw materials is respectively optimized as follows: 750 portions of biogas slurry, 1000 portions of lactobacillus powder, 0.3 to 5 portions of saccharomycete powder and 0.5 to 2 portions of spore-bacillus powder.
In the step of fermenting the mixed material, the initial pH of the material is natural and the fermentation is carried out at a temperature above 20 ℃. And (3) when the fermentation is carried out for more than 16 days, irradiating the fermentation liquid by using red light, and finishing the fermentation when the red light penetrates through the fermentation liquid to obtain a product, namely the liquid biological organic fertilizer.
In the preparation process of the liquid biological organic fertilizer, the lactobacillus powder comprises lactobacillus rhamnosus and lactobacillus delbrueckii, and the bacteria content of both the lactobacillus rhamnosus and the lactobacillus delbrueckii is more than or equal to 1.5 multiplied by 1010cfu/g; the yeast powder contains Saccharomyces cerevisiae and Candida utilis, and the bacteria content of both bacteria is not less than 1.0 × 1010cfu/g; the spore bacteria powder contains Bacillus licheniformis and Clostridium butyricum, and the bacteria content of both bacteria is not less than 1.0 × 1010cfu/g。
The strains can be prepared by themselves, and lactobacillus rhamnosus, lactobacillus delbrueckii, saccharomyces cerevisiae, candida utilis, bacillus licheniformis and clostridium butyricum are fermented and cultured in corresponding liquid culture media to obtain bacterial liquids. Then separating thalli from the fermentation culture, drying and concentrating to prepare single-strain solid bacterial powder, wherein the bacterial content of each single-strain bacterial powder is respectively as follows: lactobacillus rhamnosus ≥ 1.5 × 1010cfu/g, and Lactobacillus delbrueckii are both more than or equal to 1.5 multiplied by 1010cfu/g, Saccharomyces cerevisiae ≥ 1.0 × 1010cfu/g, Candida utilis greater than or equal to 1.0 x 1010cfu/g, more than or equal to 1.0 multiplied by 10 of bacillus licheniformis10cfu/g, Clostridium butyricumThe bacteria is more than or equal to 1.0 multiplied by 1010cfu/g。
In order to help better understand the technical scheme of the invention, the following examples are provided for illustrating the liquid bio-organic fertilizer and the preparation process thereof.
Example one
The raw materials of the liquid bio-organic fertilizer comprise 750 parts of biogas slurry, 2.3 parts of lactobacillus powder, 0.2 part of saccharomycete powder and 0.5 part of spore bacillus powder by weight. Wherein, the lactobacillus rhamnosus is more than or equal to 1.5 multiplied by 1010cfu/g, and Lactobacillus delbrueckii are both more than or equal to 1.5 multiplied by 1010cfu/g, Saccharomyces cerevisiae ≥ 1.0 × 1010cfu/g, Candida utilis greater than or equal to 1.0 x 1010cfu/g, more than or equal to 1.0 multiplied by 10 of bacillus licheniformis10cfu/g, clostridium butyricum ≥ 1.0 × 1010cfu/g。
The liquid bio-organic fertilizer is prepared by the following steps.
Step 1, mixing raw materials to prepare a mixed material, adding biogas slurry, lactobacillus powder, saccharomycete powder and spore bacteria powder together, stirring and mixing.
And 2, fermenting, namely, fermenting the materials at 25 ℃ for 23 days under the condition of natural initial pH, irradiating the fermented liquid by adopting red light, and finishing fermentation when the red light is detected to penetrate through the fermented liquid to obtain a product serving as the liquid biological organic fertilizer 1.
Example two
The raw materials of the liquid bio-organic fertilizer comprise 830 parts of biogas slurry, 0.3 part of lactobacillus powder, 3 parts of saccharomycete powder and 1.3 parts of spore-bacillus powder by weight. Wherein, the lactobacillus rhamnosus is more than or equal to 1.5 multiplied by 1010cfu/g, and Lactobacillus delbrueckii are both more than or equal to 1.5 multiplied by 1010cfu/g, Saccharomyces cerevisiae ≥ 1.0 × 1010cfu/g, Candida utilis greater than or equal to 1.0 x 1010cfu/g, more than or equal to 1.0 multiplied by 10 of bacillus licheniformis10cfu/g, clostridium butyricum ≥ 1.0 × 1010cfu/g。
The liquid bio-organic fertilizer is prepared by the following steps.
Step 1, mixing raw materials to prepare a mixed material, adding biogas slurry, lactobacillus powder, saccharomycete powder and spore bacteria powder together, stirring and mixing.
And 2, fermenting, namely, the initial pH of the material is natural, fermenting for 19 days at 20 ℃, irradiating the fermented liquid by red light, and finishing fermentation when the red light is detected to penetrate through the fermented liquid to obtain a product serving as the liquid biological organic fertilizer 2.
EXAMPLE III
The raw materials of the liquid bio-organic fertilizer comprise 910 parts of biogas slurry, 4.1 parts of lactobacillus powder, 1.7 parts of saccharomycete powder and 1 part of spore-bacillus powder by weight. Wherein, the lactobacillus rhamnosus is more than or equal to 1.5 multiplied by 1010cfu/g, and Lactobacillus delbrueckii are both more than or equal to 1.5 multiplied by 1010cfu/g, Saccharomyces cerevisiae ≥ 1.0 × 1010cfu/g, Candida utilis greater than or equal to 1.0 x 1010cfu/g, more than or equal to 1.0 multiplied by 10 of bacillus licheniformis10cfu/g, clostridium butyricum ≥ 1.0 × 1010cfu/g。
The liquid bio-organic fertilizer is prepared by the following steps.
Step 1, mixing raw materials to prepare a mixed material, adding biogas slurry, lactobacillus powder, saccharomycete powder and spore bacteria powder together, stirring and mixing.
And 2, a fermentation step, namely, fermenting the materials for 17 days at 28 ℃ with natural initial pH, irradiating the fermentation liquid with red light, and finishing the fermentation when the red light is detected to penetrate through the fermentation liquid to obtain a product serving as a liquid biological organic fertilizer 3.
Example four
The raw materials of the liquid bio-organic fertilizer comprise 1000 parts of biogas slurry, 5 parts of lactobacillus powder, 2.3 parts of saccharomycete powder and 2 parts of spore bacteria powder by weight. Wherein, the lactobacillus rhamnosus is more than or equal to 1.5 multiplied by 1010cfu/g, and Lactobacillus delbrueckii are both more than or equal to 1.5 multiplied by 1010cfu/g, Saccharomyces cerevisiae ≥ 1.0 × 1010cfu/g, Candida utilis greater than or equal to 1.0 x 1010cfu/g, more than or equal to 1.0 multiplied by 10 of bacillus licheniformis10cfu/g, clostridium butyricum ≥ 1.0 × 1010cfu/g。
The liquid bio-organic fertilizer is prepared by the following steps.
Step 1, mixing raw materials to prepare a mixed material, adding biogas slurry, lactobacillus powder, saccharomycete powder and spore bacteria powder together, stirring and mixing.
And 2, a fermentation step, namely, the initial pH of the material is natural, the material is fermented for 16 days at the temperature of 30 ℃, red light is adopted to irradiate the fermentation liquid, and the fermentation is finished when the red light is detected to penetrate through the fermentation liquid, so that the obtained product is used as the liquid biological organic fertilizer 4.
In order to help better understand the technical scheme of the invention, a test example of rice planting is provided below for illustrating the application effect of the invention.
The first test example: influence of liquid bio-organic fertilizer on rice growth
The same paddy field is selected for planting test, the basic physicochemical properties of the field soil are that the pH value is 8.12, the organic matter content of the soil of the plough layer is 28.56g/kg, the total nitrogen content is 1.20g/kg, the total phosphorus content is 0.62g/kg, the total potassium content is 19.30g/kg, the quick-acting phosphorus content is 48.1mg/kg, the quick-acting potassium content is 145.2mg/kg, and the alkaline hydrolysis nitrogen content is 29.25 mg/kg. The test design comprises 5 groups of test designs, 4 test groups and 1 control group, each group of test designs comprises 3 test cells, and each test cell has an area of 25m2All test cells are randomly distributed.
The test planting variety adopts Fengyou 301, seeding is carried out in a direct seeding mode in the middle of 4 months, harvesting is carried out in the middle of 10 months, and about 1800 basic seedlings are tilled in each small area. The fertilization mode of each district of the control group is as follows: 0.47kg of diammonium hydrogen phosphate is applied to the base fertilizer, 1.60kg of urea is applied during the first fertilization in the tillering stage, and 0.50kg of urea is applied in the booting stage. The fertilization mode of each district of the test group is as follows: 0.47kg of diammonium hydrogen phosphate is applied to the base fertilizer, 0.85kg of urea is applied for the first time in the tillering stage, and 0.18m is applied for the second time3Liquid biological organic fertilizer liquid, the third application is 0.18m3The liquid biological organic fertilizer liquid is applied to the soil at the booting stage by 0.18m3Liquid biological organic fertilizer liquid.
And after the test is finished, sampling and measuring the nutrients of the soil plough layers of all the cells, and calculating the average organic matter content, the average ammonium nitrogen content, the average available phosphorus content and the average available potassium content in each group of soil plough layers. The results are shown in Table 1.
TABLE 1
The data in table 1 show that the organic matter content, ammonium nitrogen content, available phosphorus content and available potassium content in soil plough layer nutrients of 4 groups of paddy fields applied with the liquid bio-organic fertilizer are all higher than those of the control group, so that the prepared liquid bio-organic fertilizer 1-liquid bio-organic fertilizer 4 can reduce the using amount of chemical fertilizers and improve the physicochemical properties of the soil in the paddy fields.
Before harvesting, randomly selecting 3 points in each cell every time, selecting 5 plants in each point, measuring the plant height of the rice and counting the number of tillered seedlings, randomly selecting 3 points in each cell, selecting 9 ears in each point and counting the number of ears; after harvesting and drying the rice in the sun, weighing the rice, and counting the actual yield of each cell. The average plant height, average tillered seedling number, average ear grain number and average cell yield of each group were calculated. The results are shown in Table 2.
TABLE 2
The data in table 2 show that the 4 groups of rice applied with the liquid bio-organic fertilizer are obviously higher than the control group in four properties of plant height, hole tiller number, spike grain number and plot yield. Therefore, the prepared liquid bio-organic fertilizer 1-liquid bio-organic fertilizer 4 can obviously promote the growth of rice and improve the yield of rice.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent structural changes made by using the contents of the present specification, or any other related technical fields directly or indirectly, are included in the scope of the present invention.
Claims (10)
1. A liquid biological organic fertilizer is prepared from biogas slurry, lactobacillus powder, saccharomycete powder and spore bacillus powder.
2. The liquid bio-organic fertilizer of claim 1, wherein: the liquid bio-organic fertilizer is prepared by uniformly mixing the biogas slurry, the lactobacillus powder, the saccharomycete powder and the spore bacillus powder and then fermenting at the temperature of more than 20 ℃ for more than 16 days.
3. The liquid bio-organic fertilizer of claim 1, wherein: the raw materials comprise, by weight, 750-1000 parts of biogas slurry, 0.3-5 parts of lactobacillus powder, 0.2-3 parts of saccharomycete powder and 0.5-2 parts of spore bacillus powder.
4. The liquid bio-organic fertilizer of claim 3, wherein: the raw materials comprise 750 parts of biogas slurry, 2.3 parts of lactobacillus powder, 0.2 part of saccharomycete powder and 0.5 part of spore bacillus powder by weight.
5. The liquid bio-organic fertilizer of claim 3, wherein: the raw materials comprise 830 parts of the biogas slurry, 0.3 part of the lactobacillus powder, 3 parts of the saccharomycete powder and 1.3 parts of the spore bacillus powder by weight.
6. The liquid bio-organic fertilizer of claim 3, wherein: the raw materials comprise 910 parts of the biogas slurry, 4.1 parts of the lactobacillus powder, 1.7 parts of the saccharomycete powder and 1 part of the spore bacillus powder by weight.
7. The liquid bio-organic fertilizer of claim 3, wherein: the raw materials comprise, by weight, 1000 parts of the biogas slurry, 5 parts of the lactobacillus powder, 2.3 parts of the saccharomycete powder and 2 parts of the spore bacillus powder.
8. A liquid bioorganic according to any one of claims 1 to 7The fertilizer is characterized in that: the content of the lactobacillus powder is more than or equal to 1.5 multiplied by 1010cfu/g, the bacteria content of the saccharomycete powder is more than or equal to 1.0 multiplied by 1010cfu/g, the bacterium content of the spore bacteria is more than or equal to 1.0 multiplied by 1010cfu/g。
9. The liquid bio-organic fertilizer according to any one of claims 1 to 7, characterized in that: the lactobacillus powder contains lactobacillus rhamnosus and lactobacillus delbrueckii, the saccharomycete powder contains saccharomyces cerevisiae and candida utilis, and the bacillus powder contains bacillus licheniformis and clostridium butyricum.
10. A preparation method of a liquid bio-organic fertilizer is characterized by comprising the following steps: the preparation method comprises the following steps:
step 1, preparing a mixed material, namely uniformly mixing biogas slurry with lactobacillus powder, saccharomycete powder and spore bacterium powder to obtain a mixed material; and
and 2, fermenting, wherein the initial pH of the material is natural, fermenting for more than 16 days at the temperature of more than 20 ℃, irradiating the fermented liquid with red light, finishing fermentation when the red light can be detected to penetrate through the fermented liquid, and taking the fermented product as the liquid bio-organic fertilizer.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113248317A (en) * | 2021-06-10 | 2021-08-13 | 东北农业大学 | Preparation method of leaf fertilizer for promoting rice maturity and improving rice yield |
| CN113912459A (en) * | 2021-11-09 | 2022-01-11 | 沈阳农业大学 | Preparation method of biogas slurry mineral fertilizer with biocontrol function |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102531714A (en) * | 2011-12-28 | 2012-07-04 | 北京翰华联合环保技术中心 | Biological liquid organic fertilizer and preparation method thereof |
| CN103086765A (en) * | 2013-01-25 | 2013-05-08 | 杨金铎 | Preparation method of nutritional biogas slurry biological water flush fertilizer |
| CN106187528A (en) * | 2016-07-22 | 2016-12-07 | 北京西拓联合生态科技有限公司 | A kind of biological liquid fertilizer and preparation method thereof |
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2020
- 2020-09-23 CN CN202011010640.2A patent/CN112279736A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102531714A (en) * | 2011-12-28 | 2012-07-04 | 北京翰华联合环保技术中心 | Biological liquid organic fertilizer and preparation method thereof |
| CN103086765A (en) * | 2013-01-25 | 2013-05-08 | 杨金铎 | Preparation method of nutritional biogas slurry biological water flush fertilizer |
| CN106187528A (en) * | 2016-07-22 | 2016-12-07 | 北京西拓联合生态科技有限公司 | A kind of biological liquid fertilizer and preparation method thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113248317A (en) * | 2021-06-10 | 2021-08-13 | 东北农业大学 | Preparation method of leaf fertilizer for promoting rice maturity and improving rice yield |
| CN113912459A (en) * | 2021-11-09 | 2022-01-11 | 沈阳农业大学 | Preparation method of biogas slurry mineral fertilizer with biocontrol function |
| CN113912459B (en) * | 2021-11-09 | 2022-11-04 | 沈阳农业大学 | Preparation method of biogas slurry mineral fertilizer with biocontrol function |
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