CN111606750A - Preparation method of environment-friendly odorless organic fertilizer - Google Patents
Preparation method of environment-friendly odorless organic fertilizer Download PDFInfo
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- CN111606750A CN111606750A CN201910130933.5A CN201910130933A CN111606750A CN 111606750 A CN111606750 A CN 111606750A CN 201910130933 A CN201910130933 A CN 201910130933A CN 111606750 A CN111606750 A CN 111606750A
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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
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05C—NITROGENOUS FERTILISERS
- C05C9/00—Fertilisers containing urea or urea compounds
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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
- C05F17/10—Addition or removal of substances other than water or air to or from the material during 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
- C05F17/00—Preparation of fertilisers characterised by biological or biochemical treatment steps, e.g. composting or fermentation
- C05F17/50—Treatments combining two or more different biological or biochemical treatments, e.g. anaerobic and aerobic treatment or vermicomposting and aerobic 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
- C05F17/00—Preparation of fertilisers characterised by biological or biochemical treatment steps, e.g. composting or fermentation
- C05F17/80—Separation, elimination or disposal of harmful substances during the treatment
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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
- 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
- C05G5/10—Solid or semi-solid fertilisers, e.g. powders
- C05G5/12—Granules or flakes
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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
- C05G5/30—Layered or coated, e.g. dust-preventing coatings
-
- 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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- Life Sciences & Earth Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Pest Control & Pesticides (AREA)
- Molecular Biology (AREA)
- Biotechnology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Microbiology (AREA)
- Biochemistry (AREA)
- Engineering & Computer Science (AREA)
- Toxicology (AREA)
- Soil Sciences (AREA)
- Fertilizers (AREA)
Abstract
The invention discloses a preparation method of an environment-friendly odorless organic fertilizer, which comprises 30-40 parts of corn straws, 20-30 parts of corn coatings, 10-20 parts of peanut shells, 10-20 parts of soybean shells, 5-10 parts of waste mushroom cultivation soil, 5-10 parts of sugarcane peels, 5-10 parts of pineapple peels, 5-10 parts of shaddock peels, 5-10 parts of astragalus mongholicus dregs, 2-8 parts of chicken manure, 20-30 parts of kaolin, 20-30 parts of straw ash, 5-10 parts of urea and 20-30 parts of water as raw materials, wherein the specific gravity of each component is strictly controlled, the nutrients in the organic fertilizer can be improved, the astragalus mongholicus dregs are waste dregs produced in a pharmaceutical factory, the nutritional ingredients of the organic fertilizer are recycled and increased, the sugarcane peels, the pineapple peels and the shaddock peels are used as the raw materials, the growth of plants is facilitated, a large amount of organic substance environment-friendly raw materials are adopted, the production cost is lower, and the deodorization treatment is carried out in the fermentation process, so that the organic fertilizer has no odor on the premise of ensuring the nutrient components, and is more environment-friendly.
Description
Technical Field
The invention belongs to the technical field of organic fertilizers, and particularly relates to a preparation method of an environment-friendly odorless organic fertilizer.
Background
The farmyard manure has various types, wide sources, large quantity, convenient and local use of local materials and low cost. The farmyard organic fertilizer features comprehensive nutrients including N, P, K, Ca, Mg, S, Fe and trace elements. However, most of the existing farmyard organic fertilizers are applied by raw fertilizers or simple composts, and the odor is very unpleasant. The straw returning technology is characterized in that straws are crushed and then scattered in the field, soil humus and grain yield are obviously improved, and therefore, a preparation method of an environment-friendly odorless organic fertilizer is provided.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides a preparation method of an environment-friendly odorless organic fertilizer.
In order to achieve the purpose, the invention provides the following technical scheme: the invention provides a preparation method of an environment-friendly odorless organic fertilizer, which specifically comprises the following steps:
s1: preparing raw materials;
a: 30-40 parts of corn straw, 20-30 parts of corn coating, 10-20 parts of peanut shell, 10-20 parts of soybean shell, 5-10 parts of waste mushroom cultivation soil, 5-10 parts of sugarcane peel, 5-10 parts of pineapple peel, 5-10 parts of shaddock peel, 5-10 parts of astragalus mongholicus decoction dregs, 2-8 parts of chicken manure, 20-30 parts of kaolin, 20-30 parts of straw ash, 5-10 parts of urea and 20-30 parts of water are collected;
b: drying the chicken manure, namely drying the chicken manure in a drying oven for 60-120min at the temperature of 180 ℃ and 220 ℃ to form solid;
s2: crushing;
a: sequentially putting the corn straw, the corn coating, the peanut shell, the soybean shell and the astragalus mongholicus dregs into a group of crushing machines for crushing, and standing for later use;
b: sequentially putting the sugarcane peels, the pineapple peels and the shaddock peels into a group of crushing machines for crushing and standing for later use;
c: putting the dried chicken manure into a group of crushers for crushing to obtain powdery manure, and standing for later use;
s3: stirring and fermenting;
a: placing the crushed corn straws, corn coatings, peanut shells, soybean shells and astragalus dregs into a reaction kettle with stirring and temperature control functions for stirring, adding the crushed sugarcane peels, pineapple peels and shaddock peels, adding the waste mushroom cultivation soil, kaolin, straw ash, urea and water, fully stirring and mixing for 60min, adding the fermentation materials, stirring uniformly, standing, sealing and fermenting for 2-3 days;
b: fermenting chicken manure, namely adding powdered manure into a reaction kettle with stirring and temperature control functions, adding a fermentation material, stirring and uniformly mixing, and fermenting at constant temperature for 2-3 days;
s4: fermenting;
mixing the fermentates obtained in the step (S3) of the flow a and the flow b, then adding 10-15 parts of complex flora for mixing, and carrying out mixed fermentation;
s5: granulating;
and (4) mixing the material obtained in the step S4 with 3-5 parts of bacterial manure, granulating, drying and coating to obtain the finished product of the green organic fertilizer.
As a further optimization of the technical solution, the outer packing bag is removed in advance by the waste mushroom cultivation soil in the step S1.
As a further optimization of the technical scheme, the stirring kettle in the step S3 is a stirring kettle with a heat preservation function, and the stirring kettle is heated for 60min in the stirring process.
As a further optimization of the technical scheme, the fermentation materials in the step S3 are 8-15 parts of deodorant and 5-10 parts of humic acid.
As a further optimization of the technical scheme, the constant-temperature fermentation temperature in the step S3 is 60-80 ℃.
The invention has the technical effects and advantages that: the invention relates to a preparation method of an environment-friendly odorless organic fertilizer, which changes the traditional organic fertilizer components and preparation method, and is characterized in that mushroom cultivation soil discarded by waste gas is recycled as a raw material, so that the environment is protected, energy is saved, astragalus dregs are used as raw materials, the astragalus dregs are used as waste dregs produced by pharmaceutical factories, the nutrient components of the organic fertilizer are recycled and increased, the growth of plants is facilitated, the sugarcane peel, pineapple peel and shaddock peel are recycled from fruit factories as raw materials, so that the nutrients in the organic fertilizer can be increased, the growth of the plants is facilitated, a large amount of organic substance environment-friendly raw materials are adopted, the production cost is lower, and the deodorization treatment is carried out in the fermentation process, so that the organic fertilizer is odorless and more environment-friendly on the premise of ensuring.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
The invention provides a preparation method of an environment-friendly odorless organic fertilizer, which specifically comprises the following production steps:
s1: preparing raw materials;
a: collecting 30 parts of corn straws, 20 parts of corn coatings, 10 parts of peanut shells, 10 parts of soybean shells, 5 parts of waste mushroom cultivation soil, 5 parts of sugarcane peels, 5 parts of pineapple peels, 5 parts of shaddock peels, 5 parts of astragalus mongholicus dregs, 2 parts of chicken manure, 20 parts of kaolin, 20 parts of straw ash, 5 parts of urea and 20 parts of water;
b: drying chicken manure, namely putting the chicken manure into a drying oven to be dried for 60min at the temperature of 180 ℃ to form solid;
s2: crushing;
a: sequentially putting the corn straw, the corn coating, the peanut shell, the soybean shell and the astragalus mongholicus dregs into a group of crushing machines for crushing, and standing for later use;
b: sequentially putting the sugarcane peels, the pineapple peels and the shaddock peels into a group of crushing machines for crushing and standing for later use;
c: putting the dried chicken manure into a group of crushers for crushing to obtain powdery manure, and standing for later use;
s3: stirring and fermenting;
a: placing crushed corn straws, corn coatings, peanut shells, soybean shells and astragalus dregs into a reaction kettle with stirring and temperature control functions for stirring, adding crushed sugarcane peels, pineapple peels and shaddock peels, adding waste mushroom cultivation soil, kaolin, straw ash, urea and water, fully stirring and mixing for 60min, adding fermentation materials, stirring uniformly, standing, sealing and fermenting for 2 days;
b: fermenting chicken manure, namely adding powdered manure into a reaction kettle with stirring and temperature control functions, adding a fermentation material, stirring and uniformly mixing, and fermenting at constant temperature for 2 days;
s4: fermenting;
mixing the fermentates obtained in the step (S3) of the flow (a) and the flow (b), then adding 10 parts of complex flora for mixing, and carrying out mixed fermentation;
s5: granulating;
and (4) mixing the material obtained in the step S4 with 3 parts of bacterial manure, granulating, drying and coating to obtain the finished product of the green organic fertilizer.
Specifically, the outer packing bag is removed in advance from the waste mushroom cultivating soil in the step S1.
Specifically, the stirring kettle in the step S3 is a stirring kettle with a heat preservation function, and the stirring kettle is heated for 60min during the stirring process.
Specifically, the fermentation material in the step S3 is 8 parts of deodorant and 5 parts of humic acid.
Specifically, the constant temperature fermentation temperature in step S3 is 60.
Example 2
The invention provides a preparation method of an environment-friendly odorless organic fertilizer, which specifically comprises the following production steps:
s1: preparing raw materials;
a: collecting 35 parts of corn straws, 25 parts of corn coatings, 15 parts of peanut shells, 15 parts of soybean shells, 8 parts of waste mushroom cultivation soil, 8 parts of sugarcane peels, 8 parts of pineapple peels, 9 parts of shaddock peels, 8 parts of astragalus mongholicus dregs, 5 parts of chicken manure, 25 parts of kaolin, 25 parts of straw ash, 8 parts of urea and 25 parts of water;
b: drying chicken manure, namely putting the chicken manure into a drying oven to be dried for 90min at the temperature of 200 ℃ to form solid;
s2: crushing;
a: sequentially putting the corn straw, the corn coating, the peanut shell, the soybean shell and the astragalus mongholicus dregs into a group of crushing machines for crushing, and standing for later use;
b: sequentially putting the sugarcane peels, the pineapple peels and the shaddock peels into a group of crushing machines for crushing and standing for later use;
c: putting the dried chicken manure into a group of crushers for crushing to obtain powdery manure, and standing for later use;
s3: stirring and fermenting;
a: placing crushed corn straws, corn coatings, peanut shells, soybean shells and astragalus dregs into a reaction kettle with stirring and temperature control functions for stirring, adding crushed sugarcane peels, pineapple peels and shaddock peels, adding waste mushroom cultivation soil, kaolin, straw ash, urea and water, fully stirring and mixing for 60min, adding fermentation materials, stirring uniformly, standing, sealing and fermenting for 3 days;
b: fermenting chicken manure, namely adding powdered manure into a reaction kettle with stirring and temperature control functions, adding a fermentation material, stirring and uniformly mixing, and fermenting at constant temperature for 3 days;
s4: fermenting;
mixing the fermentates obtained in the step (S3) of the flow (a) and the flow (b), then adding 12 parts of complex flora for mixing, and carrying out mixed fermentation;
s5: granulating;
and (4) mixing the material obtained in the step S4 with 4 parts of bacterial manure, granulating, drying and coating to obtain the finished product of the green organic fertilizer.
Specifically, the outer packing bag is removed in advance from the waste mushroom cultivating soil in the step S1.
Specifically, the stirring kettle in the step S3 is a stirring kettle with a heat preservation function, and the stirring kettle is heated for 60min during the stirring process.
Specifically, the fermentation material in the step S3 is 10 parts of deodorant and 8 parts of humic acid.
Specifically, the constant temperature fermentation temperature in step S3 is 70 ℃.
Example 3
The invention provides a preparation method of an environment-friendly odorless organic fertilizer, which specifically comprises the following production steps:
s1: preparing raw materials;
a: collecting 40 parts of corn straws, 30 parts of corn coatings, 20 parts of peanut shells, 20 parts of soybean shells, 10 parts of waste mushroom cultivation soil, 10 parts of sugarcane peels, 10 parts of pineapple peels, 10 parts of shaddock peels, 10 parts of astragalus mongholicus dregs, 8 parts of chicken manure, 30 parts of kaolin, 30 parts of straw ash, 10 parts of urea and 30 parts of water;
b: drying chicken manure, namely putting the chicken manure into a drying oven to be dried for 120min at the temperature of 220 ℃ to form solid;
s2: crushing;
a: sequentially putting the corn straw, the corn coating, the peanut shell, the soybean shell and the astragalus mongholicus dregs into a group of crushing machines for crushing, and standing for later use;
b: sequentially putting the sugarcane peels, the pineapple peels and the shaddock peels into a group of crushing machines for crushing and standing for later use;
c: putting the dried chicken manure into a group of crushers for crushing to obtain powdery manure, and standing for later use;
s3: stirring and fermenting;
a: placing crushed corn straws, corn coatings, peanut shells, soybean shells and astragalus dregs into a reaction kettle with stirring and temperature control functions for stirring, adding crushed sugarcane peels, pineapple peels and shaddock peels, adding waste mushroom cultivation soil, kaolin, straw ash, urea and water, fully stirring and mixing for 60min, adding fermentation materials, stirring uniformly, standing, sealing and fermenting for 3 days;
b: fermenting chicken manure, namely adding powdered manure into a reaction kettle with stirring and temperature control functions, adding a fermentation material, stirring and uniformly mixing, and fermenting at constant temperature for 3 days;
s4: fermenting;
mixing the fermentates obtained in the step (S3) of the flow a and the flow b, then adding 10-15 parts of complex flora for mixing, and carrying out mixed fermentation;
s5: granulating;
and (4) mixing the material obtained in the step S4 with 5 parts of bacterial manure, granulating, drying and coating to obtain the finished product of the green organic fertilizer.
Specifically, the outer packing bag is removed in advance by the waste mushroom cultivating soil in the step S1, and the mushroom cultivating soil discarded by the waste gas is recycled as the fertile soil, so that the environment is protected, and the energy is saved.
Specifically, the stirring kettle in the step S3 is a stirring kettle with a heat preservation function, and the stirring kettle is heated for 60min during the stirring process.
Specifically, the fermentation material in the step S3 is 15 parts of deodorant and 10 parts of humic acid.
Specifically, the constant-temperature fermentation temperature in the step S3 is 60-80 ℃.
In summary, the following steps: the invention relates to a preparation method of an environment-friendly odorless organic fertilizer, which changes the traditional organic fertilizer components and preparation method, and is characterized in that mushroom cultivation soil discarded by waste gas is recycled as a raw material, so that the environment is protected, energy is saved, astragalus dregs are used as raw materials, the astragalus dregs are used as waste dregs produced by pharmaceutical factories, the nutrient components of the organic fertilizer are recycled and increased, the growth of plants is facilitated, the sugarcane peel, pineapple peel and shaddock peel are recycled from fruit factories as raw materials, so that the nutrients in the organic fertilizer can be increased, the growth of the plants is facilitated, a large amount of organic substance environment-friendly raw materials are adopted, the production cost is lower, and the deodorization treatment is carried out in the fermentation process, so that the organic fertilizer is odorless and more environment-friendly on the premise of ensuring.
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 modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
Claims (5)
1. A preparation method of an environment-friendly odorless organic fertilizer is characterized by comprising the following steps: the method specifically comprises the following production steps:
s1: preparing raw materials;
a: 30-40 parts of corn straw, 20-30 parts of corn coating, 10-20 parts of peanut shell, 10-20 parts of soybean shell, 5-10 parts of waste mushroom cultivation soil, 5-10 parts of sugarcane peel, 5-10 parts of pineapple peel, 5-10 parts of shaddock peel, 5-10 parts of astragalus mongholicus decoction dregs, 2-8 parts of chicken manure, 20-30 parts of kaolin, 20-30 parts of straw ash, 5-10 parts of urea and 20-30 parts of water are collected;
b: drying the chicken manure, namely drying the chicken manure in a drying oven for 60-120min at the temperature of 180 ℃ and 220 ℃ to form solid;
s2: crushing;
a: sequentially putting the corn straw, the corn coating, the peanut shell, the soybean shell and the astragalus mongholicus dregs into a group of crushing machines for crushing, and standing for later use;
b: sequentially putting the sugarcane peels, the pineapple peels and the shaddock peels into a group of crushing machines for crushing and standing for later use;
c: putting the dried chicken manure into a group of crushers for crushing to obtain powdery manure, and standing for later use;
s3: stirring and fermenting;
a: placing the crushed corn straws, corn coatings, peanut shells, soybean shells and astragalus dregs into a reaction kettle with stirring and temperature control functions for stirring, adding the crushed sugarcane peels, pineapple peels and shaddock peels, adding the waste mushroom cultivation soil, kaolin, straw ash, urea and water, fully stirring and mixing for 60min, adding the fermentation materials, stirring uniformly, standing, sealing and fermenting for 2-3 days;
b: fermenting chicken manure, namely adding powdered manure into a reaction kettle with stirring and temperature control functions, adding a fermentation material, stirring and uniformly mixing, and fermenting at constant temperature for 2-3 days;
s4: fermenting;
mixing the fermentates obtained in the step (S3) of the flow a and the flow b, then adding 10-15 parts of complex flora for mixing, and carrying out mixed fermentation;
s5: granulating;
and (4) mixing the material obtained in the step S4 with 3-5 parts of bacterial manure, granulating, drying and coating to obtain the finished product of the green organic fertilizer.
2. The preparation method of the environment-friendly odorless organic fertilizer as claimed in claim 1, wherein the preparation method comprises the following steps: the outer packing bag is removed in advance from the waste mushroom cultivating soil in the step S1.
3. The preparation method of the environment-friendly odorless organic fertilizer as claimed in claim 1, wherein the preparation method comprises the following steps: and the stirring kettle in the step S3 is a stirring kettle with a heat preservation function, and the stirring kettle is heated for 60min in the stirring process.
4. The preparation method of the environment-friendly odorless organic fertilizer as claimed in claim 1, wherein the preparation method comprises the following steps: the fermentation materials in the step S3 are 8-15 parts of deodorant and 5-10 parts of humic acid.
5. The preparation method of the environment-friendly odorless organic fertilizer as claimed in claim 1, wherein the preparation method comprises the following steps: the constant temperature fermentation temperature in the step S3 is 60-80 ℃.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112194544A (en) * | 2020-10-19 | 2021-01-08 | 天津绿之本生物科技有限公司 | Special organic fertilizer for leaf vegetables |
| CN112898095A (en) * | 2021-03-22 | 2021-06-04 | 广西农垦西江乳业有限公司 | Preparation method of cow dung organic fertilizer |
| CN115010539A (en) * | 2022-06-08 | 2022-09-06 | 贵州旺兴食用菌产业有限公司 | Bio-organic fertilizer capable of improving quality of agricultural products and preparation method thereof |
-
2019
- 2019-02-22 CN CN201910130933.5A patent/CN111606750A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112194544A (en) * | 2020-10-19 | 2021-01-08 | 天津绿之本生物科技有限公司 | Special organic fertilizer for leaf vegetables |
| CN112898095A (en) * | 2021-03-22 | 2021-06-04 | 广西农垦西江乳业有限公司 | Preparation method of cow dung organic fertilizer |
| CN115010539A (en) * | 2022-06-08 | 2022-09-06 | 贵州旺兴食用菌产业有限公司 | Bio-organic fertilizer capable of improving quality of agricultural products and preparation method thereof |
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Application publication date: 20200901 |