CN111732476A - Preparation method of drum slow-release compound fertilizer - Google Patents
Preparation method of drum slow-release compound fertilizer Download PDFInfo
- Publication number
- CN111732476A CN111732476A CN202010596143.9A CN202010596143A CN111732476A CN 111732476 A CN111732476 A CN 111732476A CN 202010596143 A CN202010596143 A CN 202010596143A CN 111732476 A CN111732476 A CN 111732476A
- Authority
- CN
- China
- Prior art keywords
- fertilizer
- parts
- slow
- compound fertilizer
- release compound
- 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.)
- Pending
Links
Classifications
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05B—PHOSPHATIC FERTILISERS
- C05B1/00—Superphosphates, i.e. fertilisers produced by reacting rock or bone phosphates with sulfuric or phosphoric acid in such amounts and concentrations as to yield solid products directly
- C05B1/02—Superphosphates
-
- 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
- C05G3/40—Mixtures of one or more fertilisers with additives not having a specially fertilising activity for affecting fertiliser dosage or release rate; for affecting solubility
-
- 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
- C05G3/40—Mixtures of one or more fertilisers with additives not having a specially fertilising activity for affecting fertiliser dosage or release rate; for affecting solubility
- C05G3/44—Mixtures of one or more fertilisers with additives not having a specially fertilising activity for affecting fertiliser dosage or release rate; for affecting solubility for affecting solubility
-
- 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
-
- 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
- C05G3/90—Mixtures of one or more fertilisers with additives not having a specially fertilising activity for affecting the nitrification of ammonium compounds or urea in the soil
-
- 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
-
- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/22—Improving land use; Improving water use or availability; Controlling erosion
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
- Y02P60/20—Reduction of greenhouse gas [GHG] emissions in agriculture, e.g. CO2
- Y02P60/21—Dinitrogen oxide [N2O], e.g. using aquaponics, hydroponics or efficiency measures
Abstract
The invention discloses a preparation method of a roller slow-release compound fertilizer, which comprises 0.5-1 part of biological enzyme, 50-70 parts of macroelement powder, 6-8 parts of minor element powder, 2-4 parts of potassium fulvate, 0.1-0.5 part of microbial bacteria, 20-50 parts of base material, 6-8 parts of built-in material, 1-3 parts of nitrogen-controlling substance and 6-10 parts of coating material, wherein after the preparation method is processed, compared with the traditional product, the finished product is greatly improved, the roller slow-release compound fertilizer utilizes granule compound fertilizer production equipment, two slow-release fertilizer production technologies of coating on the surface of fertilizer granules and adsorbing and fixing nutrient substances in the built-in fertilizer are adopted, the slow-release effect of the fertilizer is ensured, the physicochemical property of soil is improved, the loss of the fertilizer is reduced, the utilization rate of the fertilizer is improved, the sludge is utilized to prepare the slow-release material with rich, long-term and stable phosphorus source, and, improving soil moisture content.
Description
Technical Field
The invention relates to the technical field of fertilizer processing, in particular to a preparation method of a drum slow-release compound fertilizer.
Background
In the production of the compound fertilizer, the nutrient condition of soil is measured by using a soil testing formula, and the application amount, the application period and the application method of fertilizers such as nitrogen, phosphorus, potassium, medium and trace elements are provided on the basis of soil testing and fertilizer field experiments according to the fertilizer requirement rule of crops, the fertilizer supply performance of soil and the fertilizer effect on the basis of reasonable application of the organic fertilizers. Generally speaking, the formula fertilizer is scientifically applied under the guidance of agricultural science and technology personnel. The core of the soil testing and formulated fertilization technology is to adjust and solve the contradiction between the fertilizer requirement of crops and the fertilizer supply of soil. Meanwhile, nutrient elements needed by crops are supplemented in a targeted manner, and what elements are supplemented when the crops lack the nutrient elements and how much is needed, so that the balanced supply of various nutrients is realized, the requirements of the crops are met, and the aims of improving the utilization rate of the fertilizer, reducing the using amount, improving the yield of the crops, improving the quality of agricultural products, saving labor, saving expenses and increasing income are fulfilled.
At present, the production process of the slow-release compound fertilizer is mostly high-tower production, the energy consumption is high, the self-adsorption of the fertilizer base material is insufficient, the adopted base material has poor self-nutrition and limited fertility, the fertilization land is hardened seriously, the fertilizer loss is large, and the fertilizer utilization rate is low. Accordingly, those skilled in the art have provided a method for preparing a drum type slow-release compound fertilizer to solve the problems set forth in the background art as described above.
Disclosure of Invention
The invention aims to provide a preparation method of a roller slow-release compound fertilizer, which aims to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
a slow-release compound fertilizer comprises 0.5-1 part of biological enzyme, 50-70 parts of macroelement powder, 6-8 parts of minor element powder, 2-4 parts of fulvic acid potassium, 0.1-0.5 part of microbial bacteria, 20-50 parts of base material, 6-8 parts of built-in material, 1-3 parts of nitrogen-controlling substance and 6-10 parts of coating material.
A preparation method of a roller slow-release compound fertilizer comprises the following steps:
1. adding a certain amount of calcium oxide into sludge by taking the sludge as a raw material according to the mass ratio of the sludge to the calcium oxide of 15:1, preparing sludge pyrolytic carbon with high content of apatite components by a pyrolysis method at the temperature of 500-800 ℃, cooling and grinding to obtain a powdery base material with high content of apatite components;
2. adding the base material, the built-in material, the major element powder and the minor element powder into a grinder to be ground into powder;
3. adding water into the obtained powder, and stirring thoroughly;
4. granulating and drying the stirred raw materials in a roller machine to obtain required semi-finished product particles;
5. mixing and granulating the biological enzyme, the potassium fulvate, the nitrogen-controlling substance, the microorganism bacteria and the semi-finished product particles by using a granulation method, screening, and spraying the coating material onto a finished product in an atomization manner;
6. and (4) coating the surfaces of the screened fertilizer particles, and finishing coating by using the temperature of the fertilizer.
Preferably, the coating material can be liquid sodium silicate substance.
Preferably, the endoplasm material can be calcium substances such as common calcium, heavy calcium and the like, and the granulation process is completed by utilizing the specific viscosity of the endoplasm material.
Preferably, the nitrogen-controlling substance uses a urease inhibitor.
Preferably, the small element powder is one or more of calcium dihydrogen phosphate, magnesium carbonate, zinc phosphate or ferrous sulfate.
Preferably, the macroelement powder is prepared from two or more of urea, diammonium phosphate, ammonium sulfate, -polylysine, potassium chloride or potassium sulfate.
Preferably, the base material is a mixture of sludge containing phosphorus and pyrolytic carbon and calcium oxide, wherein the mass ratio of the sludge to the calcium oxide is 20: 1-10: 1.
Compared with the prior art, the invention has the beneficial effects that:
the roller slow-release compound fertilizer utilizes compound fertilizer production equipment adopting a granulation method, adopts two slow-release fertilizer production technologies of coating on the surfaces of fertilizer granules and adsorbing and fixing nutrient substances in a built-in manner, ensures the slow-release effect of the fertilizer, improves the physical and chemical properties of soil, reduces the loss of the fertilizer, improves the utilization rate of the fertilizer, utilizes sludge to prepare a slow-release material with rich, long-term and stable phosphorus sources, and is particularly suitable for being applied to a slow-release material of phosphorus in soil to improve the soil moisture content.
Detailed Description
The technical solution of the present invention will be described in further detail with reference to specific embodiments.
A slow-release compound fertilizer comprises 0.5-1 part of biological enzyme, 50-70 parts of macroelement powder, 6-8 parts of minor element powder, 2-4 parts of fulvic acid potassium, 0.1-0.5 part of microbial bacteria, 20-50 parts of base material, 6-8 parts of built-in material, 1-3 parts of nitrogen-controlling substance and 6-10 parts of coating material.
A preparation method of a roller slow-release compound fertilizer comprises the following steps:
1. adding a certain amount of calcium oxide into sludge by taking the sludge as a raw material according to the mass ratio of the sludge to the calcium oxide of 15:1, preparing sludge pyrolytic carbon with high content of apatite components by a pyrolysis method at the temperature of 500-800 ℃, cooling and grinding to obtain a powdery base material with high content of apatite components;
2. adding the base material, the built-in material, the major element powder and the minor element powder into a grinder to be ground into powder;
3. adding water into the obtained powder, and stirring thoroughly;
4. granulating and drying the stirred raw materials in a roller machine to obtain required semi-finished product particles;
5. mixing and granulating the biological enzyme, the potassium fulvate, the nitrogen-controlling substance, the microorganism bacteria and the semi-finished product particles by using a granulation method, screening, and spraying the coating material onto a finished product in an atomization manner;
6. and (4) coating the surfaces of the screened fertilizer particles, and finishing coating by using the temperature of the fertilizer.
The coating material can be liquid sodium silicate substance.
The mentioned endoplasm material can be selected from calcium substances such as common calcium and heavy calcium, and its specific viscosity is used to complete the granulation process.
The nitrogen control substance uses urease inhibitor.
The small amount of element powder is one or more of calcium dihydrogen phosphate, magnesium carbonate, zinc phosphate or ferrous sulfate.
The macroelement powder is prepared from two or more of urea, diammonium phosphate, ammonium sulfate, -polylysine, potassium chloride or potassium sulfate.
The base material is mainly a mixture of sludge containing phosphorus and pyrolytic carbon and calcium oxide, wherein the mass ratio of the sludge to the calcium oxide is 20: 1-10: 1.
The working principle of the invention is as follows:
the biological ferment is a biological organic compound which is fermented by a plurality of beneficial microbial flora and is rich in high-activity organic matters and microbial metabolites. The preparation process has been reported, wherein the most important is that the components contain dozens of enzymes produced by beneficial microorganism metabolism, mainly comprising several enzymes such as lipolytic enzyme, oxidoreductase, saccharifying enzyme, cellulolytic enzyme, proteolytic enzyme and urease; the enzymes have strong aerobic fermentation capacity, can quickly catalyze organic substances such as crop straws, weeds, fallen leaves and the like, and can decompose the organic substances into humus; the fertilizer can also decompose shale, zeolite and other indissolvable minerals and chemical components of fertilizers and pesticides, and dissolve solidified nutrient components in soil, so that the physical and chemical properties of the soil are rapidly improved;
the fertilizer nutrients are supplied in a balanced manner through matching of various composite components and are used as fertilizers, the organic matter content of soil can be directly increased through the nutrient components, and the nutrient components are used as nutrient sources of soil microorganisms, so that the proliferation of the microorganisms is promoted, the soil environment is improved, and the disease resistance and stress resistance of crops are enhanced; meanwhile, the soil granular structure can be improved and the soil porosity can be increased through the synergistic effect of the rich biological enzyme, the high-activity organic matter and the microorganisms, so that the soil is loose and breathable, and the oxygen content of the soil is increased; the water and fertilizer retention is promoted together, the absorption and utilization of nutrients are promoted, the loss of the fertilizer is reduced, and the utilization rate of the fertilizer is improved;
the pyrolytic carbon with high apatite content is prepared by pyrolyzing sludge and calcium oxide powder, is used as a slow release material with abundant, long-term and stable phosphorus source, is particularly suitable for being applied to a slow release material of phosphorus in soil, and improves soil moisture content.
While the preferred embodiments of the present invention have been described in detail, the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.
Claims (7)
1. A slow-release compound fertilizer is characterized in that: the biological enzyme-containing composite fertilizer comprises 0.5-1 part of biological enzyme, 50-70 parts of major element powder, 6-8 parts of minor element powder, 2-4 parts of potassium fulvate, 0.1-0.5 part of microbial bacteria, 20-50 parts of base material, 6-8 parts of built-in material, 1-3 parts of nitrogen-controlling substance and 6-10 parts of coating material;
a preparation method of a roller slow-release compound fertilizer comprises the following steps:
1) adding a certain amount of calcium oxide into sludge by taking the sludge as a raw material according to the mass ratio of the sludge to the calcium oxide of 15:1, preparing sludge pyrolytic carbon with high content of apatite components by a pyrolysis method at the temperature of 500-800 ℃, cooling and grinding to obtain a powdery base material with high content of apatite components;
2) adding the base material, the built-in material, the major element powder and the minor element powder into a grinder to be ground into powder;
3) adding water into the prepared powder and fully stirring;
4) granulating and drying the stirred raw materials in a roller machine to obtain required semi-finished product particles;
5) mixing and granulating the biological ferment, the potassium fulvate, the nitrogen-controlling substance, the microorganism bacterium and the semi-finished product particles by using a granulation method, screening, and spraying the coating material onto the finished product in an atomization manner;
6) and wrapping the surfaces of the screened fertilizer particles, and finishing coating by utilizing the temperature of the fertilizer.
2. The method for preparing a drum slow-release compound fertilizer as claimed in claim 1, wherein in the step 5), the coating material is liquid sodium silicate.
3. The method for preparing a drum slow-release compound fertilizer as claimed in claim 1, wherein in the step 2), the endoplasm material can be selected from two of common calcium and heavy calcium.
4. The method for preparing the drum slow-release compound fertilizer as claimed in claim 1, wherein in the step 5), the nitrogen-controlling substance uses urease inhibitor.
5. The method for preparing a drum slow-release compound fertilizer as claimed in claim 1, wherein in the step 2), the small amount of element powder is one or more of calcium dihydrogen phosphate, magnesium carbonate, zinc phosphate or ferrous sulfate.
6. The method for preparing the drum slow-release compound fertilizer as claimed in claim 1, wherein in the step 2), the macroelement powder is prepared from two or more of urea, diammonium phosphate, ammonium sulfate, -polylysine, potassium chloride or potassium sulfate.
7. The preparation method of the drum slow-release compound fertilizer as claimed in claim 1, wherein in the step 2), the base material is mainly a mixture of sludge containing phosphorus and pyrolytic carbon and calcium oxide, wherein the mass ratio of the sludge to the calcium oxide is 20: 1-10: 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010596143.9A CN111732476A (en) | 2020-06-28 | 2020-06-28 | Preparation method of drum slow-release compound fertilizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010596143.9A CN111732476A (en) | 2020-06-28 | 2020-06-28 | Preparation method of drum slow-release compound fertilizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111732476A true CN111732476A (en) | 2020-10-02 |
Family
ID=72652104
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010596143.9A Pending CN111732476A (en) | 2020-06-28 | 2020-06-28 | Preparation method of drum slow-release compound fertilizer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111732476A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102503721A (en) * | 2011-10-17 | 2012-06-20 | 上海交通大学 | Preparation method of diammonium hydrogen phosphate slow-release fertilizer |
| CN103073356A (en) * | 2013-02-06 | 2013-05-01 | 辽宁施壮肥业有限公司 | Production method of slow-release chelated compound fertilizer containing multiple elements |
| CN107235759A (en) * | 2017-06-05 | 2017-10-10 | 上海大学 | Charcoal phosphorus composite fertilizer and the method that charcoal phosphorus composite fertilizer is prepared using sludge |
| CN107721592A (en) * | 2017-11-02 | 2018-02-23 | 深圳市芭田生态工程股份有限公司 | Loosen the soil compound fertilizer and preparation method thereof |
| CN109851427A (en) * | 2019-02-25 | 2019-06-07 | 深圳市芭田生态工程股份有限公司 | It is sustained the composite organic-inorganic fertilizer and preparation method thereof that loosens the soil |
-
2020
- 2020-06-28 CN CN202010596143.9A patent/CN111732476A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102503721A (en) * | 2011-10-17 | 2012-06-20 | 上海交通大学 | Preparation method of diammonium hydrogen phosphate slow-release fertilizer |
| CN103073356A (en) * | 2013-02-06 | 2013-05-01 | 辽宁施壮肥业有限公司 | Production method of slow-release chelated compound fertilizer containing multiple elements |
| CN107235759A (en) * | 2017-06-05 | 2017-10-10 | 上海大学 | Charcoal phosphorus composite fertilizer and the method that charcoal phosphorus composite fertilizer is prepared using sludge |
| CN107721592A (en) * | 2017-11-02 | 2018-02-23 | 深圳市芭田生态工程股份有限公司 | Loosen the soil compound fertilizer and preparation method thereof |
| CN109851427A (en) * | 2019-02-25 | 2019-06-07 | 深圳市芭田生态工程股份有限公司 | It is sustained the composite organic-inorganic fertilizer and preparation method thereof that loosens the soil |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103936507B (en) | A kind of preparation method of microbial organic fertilizer | |
| CN103044146B (en) | Complex control type long-acting controlled-release organic and inorganic biological fertilizer | |
| CN101781134B (en) | Tower-smelt organic-inorganic compound fertilizer and preparation method thereof | |
| CN100441090C (en) | Melon vegetable grow seedling ground substance | |
| CN100586903C (en) | Slow release long-acting organic inorganic complex blending fertilizer | |
| CN104003804B (en) | A kind of composite microbiological fertilizer of holding water and fixing nitrogen and preparation method thereof | |
| CN110078564B (en) | Compound microorganism envelope type long-acting saline-alkali soil improvement fertilizer and preparation method thereof | |
| CN100439297C (en) | Preparation method of zeolite organism organic mixed fertilizer | |
| CN102503735B (en) | Special rhizobium-containing controlled release fertilizer for soybean as well as preparation and application thereof | |
| CN112174756A (en) | Organic-inorganic compound fertilizer and preparation method thereof | |
| CN105418320A (en) | Organic fertilizer | |
| CN106278555A (en) | One cultivates peanut special microorganism slow-release fertilizer and preparation method thereof | |
| CN102040406B (en) | Method for producing compound microbial fertilizer from amino acid organic granules | |
| CN113372168A (en) | Biological humic acid fertilizer and preparation method thereof | |
| CN115417726B (en) | Special carbon-based coated fertilizer for soybean in coastal saline-alkali soil and preparation method thereof | |
| CN101830761B (en) | Controlled release fertilizer special for soilless culture of leaf vegetables and preparation method thereof | |
| CN115119701B (en) | Rice cultivation method using straw compost and environment-friendly ferment as base fertilizer | |
| CN103755442A (en) | Fruit tree regulation fertilizer and preparation method thereof | |
| CN105461444A (en) | Dampproof easily-absorbed magnetized slow-release fertilizer and preparation method thereof | |
| CN109020725A (en) | A kind of preparation method of Biologically-fermentorganic organic fertilizer | |
| CN111732476A (en) | Preparation method of drum slow-release compound fertilizer | |
| CN115010538A (en) | Two-component composite microorganism water-retention temperature-control slow-release fertilizer and preparation method and application thereof | |
| CN102442859B (en) | Method for producing compound microbial fertilizer with microbial inoculum permeation and adsorption method | |
| CN105347861A (en) | Method for producing organic fertilizer by using industrial fermentation waste | |
| CN110746229A (en) | Microbial fertilizer for improving soil hardening condition |
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 |