CN114874039A - Organic fertilizer for coffee pericarp and preparation method thereof - Google Patents
Organic fertilizer for coffee pericarp and preparation method thereof Download PDFInfo
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- CN114874039A CN114874039A CN202210551089.5A CN202210551089A CN114874039A CN 114874039 A CN114874039 A CN 114874039A CN 202210551089 A CN202210551089 A CN 202210551089A CN 114874039 A CN114874039 A CN 114874039A
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- fertilizer
- coffee
- coffee pericarp
- pericarp
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- 239000003895 organic fertilizer Substances 0.000 title claims abstract description 17
- 238000002360 preparation method Methods 0.000 title claims abstract description 10
- 239000003337 fertilizer Substances 0.000 claims abstract description 58
- 229920001661 Chitosan Polymers 0.000 claims abstract description 27
- 210000003608 fece Anatomy 0.000 claims abstract description 26
- 235000019832 sodium triphosphate Nutrition 0.000 claims abstract description 22
- UNXRWKVEANCORM-UHFFFAOYSA-I triphosphate(5-) Chemical compound [O-]P([O-])(=O)OP([O-])(=O)OP([O-])([O-])=O UNXRWKVEANCORM-UHFFFAOYSA-I 0.000 claims abstract description 22
- 238000000855 fermentation Methods 0.000 claims abstract description 20
- 230000004151 fermentation Effects 0.000 claims abstract description 20
- YGSDEFSMJLZEOE-UHFFFAOYSA-N salicylic acid Chemical compound OC(=O)C1=CC=CC=C1O YGSDEFSMJLZEOE-UHFFFAOYSA-N 0.000 claims abstract description 18
- 238000002156 mixing Methods 0.000 claims abstract description 17
- 241000287828 Gallus gallus Species 0.000 claims abstract description 11
- 239000010871 livestock manure Substances 0.000 claims abstract description 10
- 108010059820 Polygalacturonase Proteins 0.000 claims abstract description 9
- 229920002678 cellulose Polymers 0.000 claims abstract description 9
- 239000001913 cellulose Substances 0.000 claims abstract description 9
- 108010093305 exopolygalacturonase Proteins 0.000 claims abstract description 9
- FJKROLUGYXJWQN-UHFFFAOYSA-N papa-hydroxy-benzoic acid Natural products OC(=O)C1=CC=C(O)C=C1 FJKROLUGYXJWQN-UHFFFAOYSA-N 0.000 claims abstract description 9
- 229960004889 salicylic acid Drugs 0.000 claims abstract description 9
- ARUVKPQLZAKDPS-UHFFFAOYSA-L copper(II) sulfate Chemical compound [Cu+2].[O-][S+2]([O-])([O-])[O-] ARUVKPQLZAKDPS-UHFFFAOYSA-L 0.000 claims abstract description 7
- 229910000366 copper(II) sulfate Inorganic materials 0.000 claims abstract description 7
- 238000000034 method Methods 0.000 claims description 17
- 238000003756 stirring Methods 0.000 claims description 12
- 238000009264 composting Methods 0.000 claims description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 239000002361 compost Substances 0.000 claims description 4
- 239000008367 deionised water Substances 0.000 claims description 4
- 229910021641 deionized water Inorganic materials 0.000 claims description 4
- 238000001914 filtration Methods 0.000 claims description 4
- 238000004108 freeze drying Methods 0.000 claims description 4
- 238000005406 washing Methods 0.000 claims description 4
- 241000723377 Coffea Species 0.000 description 58
- 239000010410 layer Substances 0.000 description 19
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 2
- 241000209149 Zea Species 0.000 description 2
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 description 2
- 235000002017 Zea mays subsp mays Nutrition 0.000 description 2
- 235000005822 corn Nutrition 0.000 description 2
- 235000013399 edible fruits Nutrition 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 239000011574 phosphorus Substances 0.000 description 2
- 229910052698 phosphorus Inorganic materials 0.000 description 2
- 239000002985 plastic film Substances 0.000 description 2
- 229920006255 plastic film Polymers 0.000 description 2
- 239000011591 potassium Substances 0.000 description 2
- 229910052700 potassium Inorganic materials 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 235000007460 Coffea arabica Nutrition 0.000 description 1
- 240000007154 Coffea arabica Species 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 241001465754 Metazoa Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05B—PHOSPHATIC FERTILISERS
- C05B17/00—Other phosphatic fertilisers, e.g. soft rock phosphates, bone meal
-
- 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
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Tropical Medicine & Parasitology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biochemistry (AREA)
- Biotechnology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Microbiology (AREA)
- Molecular Biology (AREA)
- Fertilizers (AREA)
Abstract
The invention discloses a coffee pericarp organic fertilizer and a preparation method thereof, and relates to the field of coffee pericarp fertilizers, wherein the technical scheme comprises coffee pericarp, 5% of cellulose mold, pectinase, cow dung, chicken manure, tripolyphosphate solution, chitosan solution, 0.1% of salicylic acid and 0.02% of CuSO4, the fermentation efficiency of the coffee pericarp is accelerated by crushing the coffee pericarp, and adding 5% of cellulose mold and pectinase into the coffee pericarp for mixing, meanwhile, the tripolyphosphate solution and the chitosan solution are fully stirred, then 0.1% of salicylic acid and 0.02% of CuSO4 are added dropwise to form solution a, and then the fertilizer and the solution a are mixed to form chitosan nano fertilizer, and the hydrophilicity of chitosan can enable the fertilizer to be better combined with roots and stems of crops under the action of moisture, so that the yield of the crops is improved.
Description
Technical Field
The invention relates to the technical field of coffee pericarp fertilizers, in particular to a coffee pericarp organic fertilizer and a preparation method thereof.
Background
The coffee pericarp is rich in nitrogen and potassium, and simultaneously contains calcium, magnesium, phosphorus and other elements, taking the arabica coffee as an example, the nitrogen content in the coffee pericarp is 1.40-1.56% (accounting for dry matter), the potassium content is 0.32-0.37%, and the phosphorus content is 2.92-3.71%, generally speaking, the fertilizer potential value of the coffee pericarp is higher than that of animal manure.
Through search, the utility model with the Chinese patent number of CN114075093A discloses a composting method for improving the utilization of coffee pericarp, belonging to the technical field of waste utilization. The method comprises the steps of laying a layer of fallen leaves on a selected land, adding coffee peels layer by layer from a bottom layer, alternately piling the coffee peels and cow dung into a trapezoid layer by layer, wherein the pile height is 0.8-1.2 m, watering, covering soil on the surface layer of compost, paving a plastic film outside the compost 5-7 days before the beginning in order to quickly increase the composting temperature, opening the plastic film after the composting temperature is higher than 50 ℃, setting a ventilation hole with a wooden stick after 5 days, turning over once every 20-25 days, piling for about three months, and composting when the coffee peels and the cow dung are not clear and completely rotten, have odor and are black in color. The method of the invention can realize the effective utilization of the coffee pericarp, simultaneously solve the problem of overhigh acidity of the coffee pericarp in the composting process and fully exert the effect of the coffee pericarp as fertilizer.
In the actual use process, only the coffee pericarp and the cow dung can be stacked, the problem of overhigh acidity of the coffee pericarp is solved, but the coffee pericarp is not crushed, so that the coffee pericarp is difficult to ferment, and meanwhile, when a fertilizer generated by the coffee pericarp acts on crops, the fertilizer is difficult to combine with the roots and stems of the crops, so that the effect on the roots and stems is reduced, therefore, a coffee pericarp organic fertilizer and a preparation method thereof are needed.
Disclosure of Invention
The invention aims to solve the problems that in the prior art, the coffee pericarp is not crushed, so that fermentation is difficult to perform in the coffee pericarp, and meanwhile, when a fertilizer generated by the coffee pericarp acts on crops, the fertilizer is difficult to combine with the roots and stems of the crops, so that the effect on the roots and stems is reduced, and provides a coffee pericarp organic fertilizer and a preparation method thereof.
In order to achieve the purpose, the invention adopts the following technical scheme:
a preparation method of a coffee pericarp organic fertilizer comprises coffee pericarp, 5% cellulose mold, pectinase, cow dung, chicken manure, tripolyphosphate solution, chitosan solution, 0.1% salicylic acid and 0.02% CuSO 4.
The above technical solution further comprises:
a preparation method of a coffee pericarp organic fertilizer comprises the following steps:
the method comprises the following steps: pretreatment of coffee peels: collecting the coffee pericarp and crushing the coffee pericarp at the same time;
step two: mixing the coffee peels: mixing the pulverized coffee pericarp with 5% cellulose mold and pectinase;
step three: fertilizer fermentation: then composting the mixed coffee pericarp with cow dung and chicken manure;
step four: fertilizer collection: collecting the fertilizer after the fertilizer fermentation is finished;
step five: dissolving 0.25% of tripolyphosphate in water, filtering, and fully stirring the tripolyphosphate solution and the chitosan solution;
step six: dropwise adding 0.1% salicylic acid and 0.02% CuSO4 into the stirred solution, continuously stirring until the concentration of the solution is increased, and recording the secondary solution as a solution a;
step seven: and adding the collected fertilizer into the solution a, uniformly mixing, forming a colloidal solution after uniformly mixing, washing with deionized water, and finally freeze-drying the washed semi-solid.
The fermentation tank needs to be cleaned in the fertilizer fermentation process, fallen leaves are placed on the lowest layer, mixed coffee pericarp is placed on the second layer, cow dung is placed on the third layer, and chicken dung is placed on the fourth layer.
The compost needs to make the fertilizer in a trapezoid shape, simultaneously ensures the moisture in the fertilizer, and turns the fertilizer once in half a month.
The ratio of the tripolyphosphate solution to the chitosan solution is 1: 1.
the tripolyphosphate solution and the chitosan solution are mixed in a common dropping mode, and the rotation speed during stirring is 350 rpm.
The ratio of the solution a to the collected fertilizer is 1; (3-4.7).
In the process of coffee pericarp pretreatment, the coffee pericarp needs to be pulverized to within less than 1.2cm directly.
Compared with the prior art, the invention has the beneficial effects that:
when the chitosan nano fertilizer is used, the coffee pericarp is crushed, 5% of cellulose mold and pectinase are added into the coffee pericarp and mixed, so that the fermentation efficiency of the coffee pericarp is accelerated, meanwhile, the tripolyphosphate solution and the chitosan solution are fully stirred, then 0.1% of salicylic acid and 0.02% of CuSO4 are dropwise added to form a solution a, the fertilizer and the solution a are mixed to form the chitosan nano fertilizer, and the hydrophilicity of chitosan can enable the fertilizer to be better combined with roots and stems of crops under the action of water, so that the yield of the crops is improved.
Detailed Description
Example one
Step one, collecting coffee pericarp, crushing the coffee pericarp at the same time, crushing the coffee pericarp until the diameter of the coffee pericarp is less than 1.2cm directly in the pretreatment process of the coffee pericarp, and mixing the crushed coffee pericarp with 5% cellulose mold and pectinase;
secondly, composting the mixed coffee peels, the cow dung and the chicken manure, wherein a fermentation tank needs to be cleaned in the fertilizer fermentation process, then fallen leaves are placed on the lowest layer, the mixed coffee peels are placed on the second layer, the cow dung is placed on the third layer, the chicken manure is placed on the fourth layer, the fertilizer is made to be trapezoidal through composting, meanwhile, the moisture in the fertilizer is guaranteed, the fertilizer is turned over once in half a month, and the fertilizer is collected after the fertilizer fermentation is finished;
thirdly, dissolving 0.25% of tripolyphosphate in water for filtering, and then fully stirring the tripolyphosphate solution and the chitosan solution, wherein the ratio of the tripolyphosphate solution to the chitosan solution is 1: 1, mixing the tripolyphosphate solution and the chitosan solution in a common dropwise adding mode, wherein the rotating speed during stirring is 350 rpm;
dropwise adding 0.1% salicylic acid and 0.02% CuSO4 into the stirred solution, continuously stirring until the concentration of the solution is increased, and recording the secondary solution as a solution a;
fourthly, adding the collected fertilizer into the solution a for uniformly mixing, wherein the ratio of the solution a to the collected fertilizer is 1; (3-4.7), forming a colloidal solution after uniformly mixing, washing with deionized water, and finally freeze-drying the washed semi-solid.
Based on the organic fertilizer for coffee pericarp and the preparation method thereof, the fertilizer is applied to corn crops, and the fertilizer and the roots and stems of the crops can be better combined under the action of moisture through the hydrophilicity of chitosan, so that the yield of the crops is improved, compared with the traditional fertilizer, the fruit yield is improved by 12.5% -16.3%, and the coffee pericarp is crushed, so that the fermentation time of the coffee pericarp is shortened by 16.5% -21.3%.
Example two
Step one, collecting the coffee pericarp, and mixing the coffee pericarp with 5% cellulose mold and pectinase in the coffee pericarp pretreatment process;
secondly, composting the mixed coffee peels, cow dung and chicken manure, wherein a fermentation tank needs to be cleaned in the fertilizer fermentation process, then fallen leaves are placed on the lowest layer, the mixed coffee peels are placed on the second layer, the cow dung is placed on the third layer, the chicken manure is placed on the fourth layer, the fertilizer is made to be trapezoidal in composting, meanwhile, the moisture in the fertilizer is guaranteed, the fertilizer is turned once in half a month, and the fertilizer is collected after the fertilizer fermentation is completed;
thirdly, dissolving 0.25% of tripolyphosphate in water for filtering, and then fully stirring the tripolyphosphate solution and the chitosan solution, wherein the ratio of the tripolyphosphate solution to the chitosan solution is 1: 1, mixing a tripolyphosphate solution and a chitosan solution in a common dropwise adding mode, wherein the rotating speed during stirring is 350 rpm;
dropwise adding 0.1% salicylic acid and 0.02% CuSO4 into the stirred solution, continuously stirring until the concentration of the solution is increased, and recording the secondary solution as a solution a;
fourthly, adding the collected fertilizer into the solution a for uniformly mixing, wherein the ratio of the solution a to the collected fertilizer is 1; (3-4.7), forming a colloidal solution after uniformly mixing, washing with deionized water, and finally freeze-drying the washed semi-solid.
When the fertilizer is applied to corn crops, the fertilizer can be better combined with roots and stems of the crops under the action of water through the hydrophilicity of chitosan, so that the yield of the crops is improved, compared with the traditional fertilizer, the fruit yield is improved by 12.5% -16.3%, and compared with the first embodiment, the fermentation time of coffee pericarp is longer due to the lack of grinding of the coffee pericarp.
In conclusion, the fermentation time of the coffee pericarp is reduced by crushing the coffee pericarp, a layer of chitosan can be formed outside the formed fertilizer through the tripolyphosphate solution and the chitosan solution, and the fertilizer and the roots and stems of the crops can be better combined under the action of moisture due to the hydrophilicity of the chitosan in the fertilizing process, so that the yield of the crops is improved.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (8)
1. An organic fertilizer for coffee pericarp is characterized by comprising coffee pericarp, 5% of cellulose mildew, pectinase, cow dung, chicken manure, tripolyphosphate solution, chitosan solution, 0.1% of salicylic acid and 0.02% of CuSO 4.
2. A preparation method of an organic fertilizer for coffee pericarp is characterized by comprising the following steps;
the method comprises the following steps: pretreatment of coffee peels: collecting the coffee pericarp and crushing the coffee pericarp at the same time;
step two: mixing the coffee peels: mixing the pulverized coffee pericarp with 5% cellulose mold and pectinase;
step three: fertilizer fermentation: then composting the mixed coffee pericarp with cow dung and chicken manure;
step four: fertilizer collection: collecting the fertilizer after the fertilizer fermentation is finished;
step five: dissolving 0.25% of tripolyphosphate in water, filtering, and fully stirring the tripolyphosphate solution and the chitosan solution;
step six: dropwise adding 0.1% salicylic acid and 0.02% CuSO4 into the stirred solution, continuously stirring until the concentration of the solution is increased, and recording the secondary solution as a solution a;
step seven: and adding the collected fertilizer into the solution a, uniformly mixing, forming a colloidal solution after uniformly mixing, washing with deionized water, and finally freeze-drying the washed semisolid.
3. The method for preparing the organic fertilizer of coffee pericarp as claimed in claim 2, wherein the fermentation tank is cleaned during the fertilizer fermentation process, and then the fallen leaves are placed on the bottom layer, the mixed coffee pericarp is placed on the second layer, the cow dung is placed on the third layer, and the chicken dung is placed on the fourth layer.
4. The method for preparing organic fertilizer from coffee pericarp as claimed in claim 3, wherein the compost is made to be trapezoidal while ensuring moisture in the fertilizer, and the fertilizer is turned over once in half a month.
5. The method for preparing the organic fertilizer for coffee pericarp as claimed in claim 4, wherein the ratio of the tripolyphosphate solution to the chitosan solution is 1: 1.
6. the method for preparing the organic fertilizer of coffee pericarp as claimed in claim 5, wherein the tripolyphosphate solution and the chitosan solution are mixed together in a dropping manner, and the rotation speed during stirring is 350 rpm.
7. The method for preparing organic fertilizer from coffee pericarp as claimed in claim 6, wherein the ratio of the solution a to the collected fertilizer is 1; (3-4.7).
8. The method for preparing organic fertilizer from coffee pericarp as claimed in claim 7, wherein the coffee pericarp is pulverized to less than 1.2cm directly during the pretreatment of coffee pericarp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210551089.5A CN114874039A (en) | 2022-05-18 | 2022-05-18 | Organic fertilizer for coffee pericarp and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210551089.5A CN114874039A (en) | 2022-05-18 | 2022-05-18 | Organic fertilizer for coffee pericarp and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114874039A true CN114874039A (en) | 2022-08-09 |
Family
ID=82678580
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210551089.5A Pending CN114874039A (en) | 2022-05-18 | 2022-05-18 | Organic fertilizer for coffee pericarp and preparation method thereof |
Country Status (1)
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2299687A1 (en) * | 1997-08-04 | 1999-02-18 | Bio Syntech Ltd. | Temperature-controlled ph-dependant formation of ionic polysaccharide gels |
| US20030104020A1 (en) * | 2001-11-09 | 2003-06-05 | Davison Gordon Robert | Chitosan compositions |
| CN104311253A (en) * | 2014-09-29 | 2015-01-28 | 成都新柯力化工科技有限公司 | Chitosan controlled release fertilizer microspheres and preparation method thereof |
| CN104909847A (en) * | 2014-11-07 | 2015-09-16 | 范龙 | Method of converting livestock manures into microbial organic fertilizers |
| CN108440094A (en) * | 2018-04-17 | 2018-08-24 | 淮北市菲美得环保科技有限公司 | A kind of zymotechnique of environment-friendly type water chestnut liquid manure |
| CN110002906A (en) * | 2019-05-23 | 2019-07-12 | 云南省德宏热带农业科学研究所 | Coffee skin residue organic fertilizer preparation method |
| CN111892432A (en) * | 2020-08-19 | 2020-11-06 | 泰州飞海印合生机农业科技有限公司 | Compound enzyme preparation and application thereof in organic waste fermentation |
| CN114075093A (en) * | 2021-10-18 | 2022-02-22 | 普洱学院 | Composting method for improving utilization of coffee pericarp |
-
2022
- 2022-05-18 CN CN202210551089.5A patent/CN114874039A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2299687A1 (en) * | 1997-08-04 | 1999-02-18 | Bio Syntech Ltd. | Temperature-controlled ph-dependant formation of ionic polysaccharide gels |
| US20030104020A1 (en) * | 2001-11-09 | 2003-06-05 | Davison Gordon Robert | Chitosan compositions |
| CN104311253A (en) * | 2014-09-29 | 2015-01-28 | 成都新柯力化工科技有限公司 | Chitosan controlled release fertilizer microspheres and preparation method thereof |
| CN104909847A (en) * | 2014-11-07 | 2015-09-16 | 范龙 | Method of converting livestock manures into microbial organic fertilizers |
| CN108440094A (en) * | 2018-04-17 | 2018-08-24 | 淮北市菲美得环保科技有限公司 | A kind of zymotechnique of environment-friendly type water chestnut liquid manure |
| CN110002906A (en) * | 2019-05-23 | 2019-07-12 | 云南省德宏热带农业科学研究所 | Coffee skin residue organic fertilizer preparation method |
| CN111892432A (en) * | 2020-08-19 | 2020-11-06 | 泰州飞海印合生机农业科技有限公司 | Compound enzyme preparation and application thereof in organic waste fermentation |
| CN114075093A (en) * | 2021-10-18 | 2022-02-22 | 普洱学院 | Composting method for improving utilization of coffee pericarp |
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Application publication date: 20220809 |