CN112010695A - Microbial fertilizer using plant straws as main raw material - Google Patents
Microbial fertilizer using plant straws as main raw material Download PDFInfo
- Publication number
- CN112010695A CN112010695A CN202010713655.9A CN202010713655A CN112010695A CN 112010695 A CN112010695 A CN 112010695A CN 202010713655 A CN202010713655 A CN 202010713655A CN 112010695 A CN112010695 A CN 112010695A
- Authority
- CN
- China
- Prior art keywords
- fertilizer
- microbial
- parts
- raw material
- main raw
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05D—INORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C; FERTILISERS PRODUCING CARBON DIOXIDE
- C05D3/00—Calcareous fertilisers
- C05D3/02—Calcareous fertilisers from limestone, calcium carbonate, calcium hydrate, slaked lime, calcium oxide, waste calcium products
-
- 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
-
- 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
- C05F17/30—Preparation of fertilisers characterised by biological or biochemical treatment steps, e.g. composting or fermentation using irradiation, e.g. solar or nuclear radiation; using electric or magnetic fields
-
- 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
-
- 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)
- Life Sciences & Earth Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Biotechnology (AREA)
- Microbiology (AREA)
- Biochemistry (AREA)
- Molecular Biology (AREA)
- Engineering & Computer Science (AREA)
- General Chemical & Material Sciences (AREA)
- Pest Control & Pesticides (AREA)
- Tropical Medicine & Parasitology (AREA)
- Physics & Mathematics (AREA)
- High Energy & Nuclear Physics (AREA)
- Sustainable Development (AREA)
- Toxicology (AREA)
- Inorganic Chemistry (AREA)
- Fertilizers (AREA)
Abstract
The invention discloses a microbial fertilizer taking plant straws as a main raw material, which comprises the following components: plant straw, human and animal excreta, calcium oxide, microbial agent a, microbial agent b, zinc sulfate, boric acid, nitrogen, phosphorus and potassium fertilizers and water. Compared with the traditional microbial fertilizer, the microbial fertilizer has the difference that two different microbial agents are adopted in the preparation process, wherein agrobacterium tumefaciens CCTCC NO. M206131 is added in the fermentation process, so that the degradation efficiency of plant straws, particularly rice straws, can be remarkably improved. In order to prevent the subsequent harm of the agrobacterium tumefaciens to crops, the invention performs ultraviolet sterilization on the fertilizer after fermentation and then adds the microbial agent b, thereby achieving the effects of high-efficiency fermentation and no harm to the crops.
Description
Technical Field
The invention relates to the technical field of microbial fertilizers, in particular to a microbial fertilizer taking plant straws as a main raw material.
Background
The straw is a general term of stem leaf (ear) part of mature crops. Typically refers to the remainder of the wheat, rice, corn, potatoes, oilseed rape, cotton, sugar cane and other crops (typically roughages) after harvesting the seed. More than half of the products of crop photosynthesis exist in the straws, and the straws are rich in nitrogen, phosphorus, potassium, calcium, magnesium, organic matters and the like, are multipurpose renewable biological resources, and are also coarse feed. It features high coarse fibre content (30-40%), and lignin content. Although the lignocellulose cannot be utilized by pigs and chickens, the lignocellulose can be absorbed and utilized by livestock such as ruminants, cattle and sheep.
Straw burning refers to a behavior of burning crop straws with fire to destroy the crop straws. Straw burning causes haze weather, and generates a large amount of toxic and harmful substances, which threatens human health and other biological health. In order to reduce the burning of the straws, the straws are used in various ways at present, wherein the most convenient way is to return the straws to the field. The method for returning the straws to the field comprises two methods: firstly, the straws are smashed by machinery, deeply ploughed and buried during cultivation, and the straws are decomposed by microorganisms in soil. Another effective method for returning straw to field is to crush the straw, mix with a proper amount of lime and human and animal excreta, ferment, deteriorate and rot in a semi-oxidation and semi-reduction environment, and take out the straw for fertilizing the field. However, in the traditional straw returning process, the straw fermentation time is long, and insufficient straw fermentation is easily caused, so that a large number of agricultural pests are bred. In order to improve the utilization efficiency of the straws, the invention provides a microbial fertilizer taking plant straws as a main raw material and a preparation method thereof.
Disclosure of Invention
Based on the technical problems in the background art, the invention provides a microbial fertilizer taking plant straws as a main raw material.
The technical scheme of the invention is as follows:
a microbial fertilizer using plant straws as a main raw material comprises the following components: plant straw, human and animal excreta, calcium oxide, microbial agent a, microbial agent b, zinc sulfate, boric acid, nitrogen, phosphorus and potassium fertilizers and water.
A microbial fertilizer taking plant straws as a main raw material comprises the following components in parts by weight: 100 parts of plant straw, 80-200 parts of human and animal excreta, 10-25 parts of calcium oxide, 2-5 parts of microbial agent a, 3-8 parts of microbial agent b, 1-2 parts of zinc sulfate, 3-6 parts of boric acid, 300 parts of nitrogen-phosphorus-potassium fertilizer and 500 parts of water 300-.
The preparation method of the microbial fertilizer taking the plant straws as the main raw material comprises the following steps:
A. putting plant straws and human and animal excreta into a composting fermentation mixer, and stirring and mixing to obtain a mixed fertilizer;
B. adding the microbial agent a into a compost fermentation mixer, adding a mixed fertilizer, controlling the speed of a rotor at 150-200rpm, continuously stirring and fermenting for 8-12h, wherein the temperature of materials in the compost fermentation mixer is 40-45 ℃;
C. adding water into the fertilizer, then stacking the fertilizer in a groove, setting the height of a stack body to be less than or equal to 3m, turning the fertilizer when the temperature of the stack body is increased to 80-90 ℃ and lasts for more than 1h, wherein the time of groove fermentation is 36-48h, and carrying out ultraviolet sterilization on the fertilizer;
D. and (3) transferring the fertilizer into a composting fermentation mixer again, adjusting the speed of a rotor to 80-120rpm, adding other components of the microbial fertilizer, stirring for 1-2h, controlling the temperature of the materials in the composting fermentation mixer to 65-70 ℃, and cooling to normal temperature.
Preferably, in the step A, the plant straws are crushed and then sieved by a 20-30-mesh sieve for use.
Preferably, in the step B, the microbial agent a contains agrobacterium tumefaciens, which has a deposit number of: CCTCC NO. M206131.
More preferably, in the microbial agent a, the functional bacteria are bacillus subtilis and agrobacterium tumefaciens.
Preferably, in the microbial agent b, the functional bacteria are bacillus subtilis, azotobacter, phosphate solubilizing bacteria and bacillus licheniformis.
In the microbial agents a and b, the addition amount of functional bacteria is not less than 0.2 hundred million/g.
The invention has the advantages that: the microbial fertilizer with plant straws as main raw materials comprises the following components: plant straw, human and animal excreta, calcium oxide, microbial agent a, microbial agent b, zinc sulfate, boric acid, nitrogen, phosphorus and potassium fertilizers and water. Compared with the traditional microbial fertilizer, the microbial fertilizer has the difference that two different microbial agents are adopted in the preparation process, wherein agrobacterium tumefaciens CCTCC NO. M206131 is added in the fermentation process, so that the degradation efficiency of plant straws, particularly rice straws, can be remarkably improved. In order to prevent the subsequent harm of the agrobacterium tumefaciens to crops, the invention performs ultraviolet sterilization on the fertilizer after fermentation and then adds the microbial agent b, thereby achieving the effects of high-efficiency fermentation and no harm to the crops.
Detailed Description
Example 1
A microbial fertilizer taking rice straws as a main raw material comprises the following components in parts by weight: 100 parts of rice straw, 150 parts of human and animal excreta, 18 parts of calcium oxide, 3 parts of microbial agent a, 5 parts of microbial agent b, 1.5 parts of zinc sulfate, 5 parts of boric acid, 220 parts of nitrogen, phosphorus and potassium fertilizer and 450 parts of water.
The preparation method of the microbial fertilizer taking the rice straws as the main raw material comprises the following steps:
A. putting the rice straws and the human and animal excreta into a composting fermentation mixer, and stirring and mixing to obtain a mixed fertilizer;
B. adding the microbial agent a into a composting fermentation mixer, adding a mixed fertilizer, controlling the speed of a rotor at 160rpm, continuously stirring and fermenting for 10 hours, wherein the temperature of materials in the composting fermentation mixer is 40-45 ℃;
C. adding water into the fertilizer, then stacking the fertilizer in a groove, setting the height of a stack body to be less than or equal to 3m, turning the fertilizer when the temperature of the stack body is increased to 80-90 ℃ and lasts for more than 1h, wherein the time of groove type fermentation is 42h, and carrying out ultraviolet sterilization on the fertilizer;
D. and (3) transferring the fertilizer into a composting fermentation mixer again, adjusting the speed of a rotor to 105rpm, adding other components of the microbial fertilizer, stirring for 1.5h, controlling the temperature of the materials in the composting fermentation mixer to be 65-70 ℃, and cooling to the normal temperature.
In the step A, the rice straw is crushed and then is screened by a 25-mesh sieve for use.
The agrobacterium tumefaciens has a preservation number of: CCTCC NO. M206131.
In the microbial agent b, the functional bacteria are bacillus subtilis, azotobacter, phosphate solubilizing bacteria and bacillus licheniformis.
In the microbial agents a and b, the addition amount of functional bacteria is 0.3 hundred million/g.
Example 2
A microbial fertilizer taking rice straws as a main raw material comprises the following components in parts by weight: 100 parts of rice straw, 200 parts of human and animal excreta, 10 parts of calcium oxide, 5 parts of microbial agent a, 3 parts of microbial agent b, 2 parts of zinc sulfate, 3 parts of boric acid, 300 parts of nitrogen, phosphorus and potassium fertilizer and 300 parts of water.
The preparation method of the microbial fertilizer taking the rice straws as the main raw material comprises the following steps:
A. putting the rice straws and the human and animal excreta into a composting fermentation mixer, and stirring and mixing to obtain a mixed fertilizer;
B. adding the microbial agent a into a composting fermentation mixer, adding a mixed fertilizer, controlling the speed of a rotor to be 200rpm, continuously stirring and fermenting for 8 hours, wherein the temperature of materials in the composting fermentation mixer is 40-45 ℃;
C. adding water into the fertilizer, then stacking the fertilizer in a groove, setting the height of a stack body to be less than or equal to 3m, turning the fertilizer when the temperature of the stack body is increased to 80-90 ℃ and lasts for more than 1h, wherein the time of groove type fermentation is 48h, and carrying out ultraviolet sterilization on the fertilizer;
D. and (3) transferring the fertilizer into a composting fermentation mixer again, adjusting the speed of a rotor to 80rpm, adding other components of the microbial fertilizer, stirring for 2 hours, and cooling to normal temperature to obtain the fertilizer, wherein the temperature of the materials in the composting fermentation mixer is 65-70 ℃.
In the step A, the rice straw is crushed and then is used after being screened by a 20-mesh sieve.
In the microbial agent a, functional bacteria are bacillus subtilis and agrobacterium tumefaciens.
The agrobacterium tumefaciens has a preservation number of: CCTCC NO. M206131.
In the microbial agent b, the functional bacteria are bacillus subtilis, azotobacter, phosphate solubilizing bacteria and bacillus licheniformis.
In the microbial agent a, the addition amount of functional bacteria is 0.3 hundred million/g microbial fertilizer; in the microbial agent b, the addition amount of the functional bacteria is 0.5 hundred million/g.
Example 3
A microbial fertilizer taking rice straws as a main raw material comprises the following components in parts by weight: 100 parts of rice straw, 80 parts of human and animal excreta, 25 parts of calcium oxide, 2 parts of microbial agent a, 8 parts of microbial agent b, 1 part of zinc sulfate, 6 parts of boric acid, 150 parts of nitrogen, phosphorus and potassium fertilizer and 500 parts of water.
The preparation method of the microbial fertilizer taking the rice straws as the main raw material comprises the following steps:
A. putting the rice straws and the human and animal excreta into a composting fermentation mixer, and stirring and mixing to obtain a mixed fertilizer;
B. adding the microbial agent a into a composting fermentation mixer, adding a mixed fertilizer, controlling the speed of a rotor to be 150rpm, continuously stirring and fermenting for 8-12h, wherein the temperature of materials in the composting fermentation mixer is 40-45 ℃;
C. adding water into the fertilizer, then stacking the fertilizer in a groove, setting the height of a stack body to be less than or equal to 3m, turning the fertilizer when the temperature of the stack body is increased to 80-90 ℃ and lasts for more than 1h, wherein the time of groove fermentation is 36h, and carrying out ultraviolet sterilization on the fertilizer;
D. and (3) transferring the fertilizer into a composting fermentation mixer again, adjusting the speed of a rotor to 120rpm, adding other components of the microbial fertilizer, stirring for 1h, and cooling to normal temperature to obtain the fertilizer, wherein the temperature of the materials in the composting fermentation mixer is 65-70 ℃.
In the step A, the rice straw is crushed and then is sieved by a 30-mesh sieve for use.
In the microbial agent a, functional bacteria are bacillus subtilis and agrobacterium tumefaciens.
The agrobacterium tumefaciens has a preservation number of: CCTCC NO. M206131.
In the microbial agent b, the functional bacteria are bacillus subtilis, azotobacter, phosphate solubilizing bacteria and bacillus licheniformis.
In the microbial agent a, the addition amount of functional bacteria is 0.2 hundred million/g microbial fertilizer; in the microbial agent b, the addition amount of the functional bacteria is 0.3 hundred million/g.
Comparative example 1
The agrobacterium tumefaciens in example 1 was removed, and the rest of the formulation and preparation method were unchanged.
Comparative example 2
The Agrobacterium tumefaciens of example 1 was replaced with Agrobacterium tumefaciens BNCC180854 purchased from North Nay organisms, and the rest of the formulation and preparation method were unchanged.
The following test results were obtained by testing the degradation rate of rice straw in the microbial fertilizers of examples 1 to 3 and comparative examples 1 to 2 (5 samples were tested and the average value was taken).
| Example 1 | Example 1 | Example 1 | Comparative example 1 | Comparative example 2 | |
| The degradation rate% | 80.2 | 79.8 | 76.5 | 42.8 | 51.3 |
According to the test data, the microbial fertilizer disclosed by the invention is added with the agrobacterium tumefaciens BNCC180854, so that the degradation rate of the rice straw can be obviously 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. A microbial fertilizer taking plant straws as a main raw material is characterized by comprising the following components: plant straw, human and animal excreta, calcium oxide, microbial agent a, microbial agent b, zinc sulfate, boric acid, nitrogen, phosphorus and potassium fertilizers and water.
2. The microbial fertilizer taking plant straws as a main raw material as claimed in claim 1, which is characterized by comprising the following components in percentage by weight: 100 parts of plant straw, 80-200 parts of human and animal excreta, 10-25 parts of calcium oxide, 2-5 parts of microbial agent a, 3-8 parts of microbial agent b, 1-2 parts of zinc sulfate, 3-6 parts of boric acid, 300 parts of nitrogen-phosphorus-potassium fertilizer and 500 parts of water 300-.
3. The microbial fertilizer using plant straws as a main raw material as claimed in claim 1 or 2, wherein the preparation method comprises the following steps:
A. putting plant straws and human and animal excreta into a composting fermentation mixer, and stirring and mixing to obtain a mixed fertilizer;
B. adding the microbial agent a into a compost fermentation mixer, adding a mixed fertilizer, controlling the speed of a rotor at 150-200rpm, continuously stirring and fermenting for 8-12h, wherein the temperature of materials in the compost fermentation mixer is 40-45 ℃;
C. adding water into the fertilizer, then stacking the fertilizer in a groove, setting the height of a stack body to be less than or equal to 3m, turning the fertilizer when the temperature of the stack body is increased to 80-90 ℃ and lasts for more than 1h, wherein the time of groove fermentation is 36-48h, and carrying out ultraviolet sterilization on the fertilizer;
D. and (3) transferring the fertilizer into a composting fermentation mixer again, adjusting the speed of a rotor to 80-120rpm, adding other components of the microbial fertilizer, stirring for 1-2h, controlling the temperature of the materials in the composting fermentation mixer to 65-70 ℃, and cooling to normal temperature.
4. The microbial fertilizer using plant straws as a main raw material as claimed in claim 3, wherein in the step A, the plant straws are crushed and then screened by a 20-30-mesh sieve for use.
5. The microbial fertilizer using plant straws as a main raw material as claimed in claim 3, wherein in the step B, the microbial agent a contains Agrobacterium tumefaciens with the preservation number of: CCTCC NO. M206131.
6. The microbial fertilizer using plant straws as a main raw material as claimed in claim 5, wherein in the microbial agent a, the functional bacteria are Bacillus subtilis and Agrobacterium tumefaciens.
7. The microbial fertilizer mainly prepared from plant straws as claimed in claim 3, wherein in the microbial agent b, the functional bacteria are Bacillus subtilis, azotobacter, phosphate solubilizing bacteria and Bacillus licheniformis.
8. The microbial fertilizer using plant straws as a main raw material as claimed in claim 3, wherein in the microbial agents a and b, the addition amount of functional bacteria is not less than 0.2 hundred million/g.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010713655.9A CN112010695A (en) | 2020-07-23 | 2020-07-23 | Microbial fertilizer using plant straws as main raw material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010713655.9A CN112010695A (en) | 2020-07-23 | 2020-07-23 | Microbial fertilizer using plant straws as main raw material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112010695A true CN112010695A (en) | 2020-12-01 |
Family
ID=73498820
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010713655.9A Withdrawn CN112010695A (en) | 2020-07-23 | 2020-07-23 | Microbial fertilizer using plant straws as main raw material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112010695A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112852666A (en) * | 2021-01-19 | 2021-05-28 | 新疆河润水业有限责任公司 | Preparation method of microbial agent and microbial fertilizer prepared by adopting microbial agent |
-
2020
- 2020-07-23 CN CN202010713655.9A patent/CN112010695A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112852666A (en) * | 2021-01-19 | 2021-05-28 | 新疆河润水业有限责任公司 | Preparation method of microbial agent and microbial fertilizer prepared by adopting microbial agent |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102212494B (en) | Organic matter decomposing inoculant, and preparation method and application thereof | |
| RU2595173C2 (en) | Microbial organic fertiliser and production methods thereof | |
| CN101607840B (en) | Multifunctional biological organic fertilizer and preparation method and application thereof | |
| CN106083453A (en) | A kind of biomass organic fertilizer and preparation method thereof | |
| CN105296394A (en) | Microbial decomposition agent for animal wastes and straws and preparation method thereof | |
| CN102557829A (en) | Antibacterial peptide active organic fertilizer and preparation method thereof | |
| CN102417415A (en) | Disease and insect pest resistant efficient fertilizer produced by using traditional Chinese medicine residues and production method | |
| CN108314585A (en) | Agriculture probiotics conversion stalk and the method for cultivating excrement production biological organic fertilizer | |
| CN103449886A (en) | Composite microbial fertilizer for paddy | |
| CN109265217A (en) | A kind of production method of soil conditioner | |
| CN109762765B (en) | Decomposed solid fermentation microbial inoculum and application thereof in agricultural wastes | |
| CN108148777A (en) | A kind of bacillus subtilis, complex micro organism fungicide, organic substrate and its preparation and application | |
| CN104788244A (en) | Organic fertilizer and preparation method thereof | |
| CN102417416A (en) | High-efficiency liquid fertilizer produced from traditional Chinese medicine residues and production method | |
| CN112028684A (en) | Loss-control long-acting sugarcane pesticide fertilizer and preparation method thereof | |
| CN104250119A (en) | Method for producing bio-organic fertilizer through fermentation wastewater and agricultural waste | |
| CN103392546A (en) | Cultivation technology method of paddy rice | |
| CN108516905A (en) | A method of preparing organic fertilizer using agriculture wastes | |
| CN103708864A (en) | Biological bacterial fertilizer for saline land crops, and preparation method thereof | |
| CN106747737A (en) | A kind of special organic bio-fertilizer of the bletilla striata and its preparation technology | |
| CN105037045B (en) | A kind of soybean nutritional liquid and preparation method thereof and application method | |
| CN110590458A (en) | Jasmine bio-organic fertilizer capable of improving soil and preparation method thereof | |
| CN106220302A (en) | A kind of fertilizer synergist and preparation method thereof | |
| CN108285395A (en) | A kind of tobacco microorganisms microbial inoculum for driving away root nematode | |
| CN108640745A (en) | A kind of biomass organic fertilizer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20201201 |