CN110590429A - Multifunctional high-tower full-water-soluble sulfur-based fertilizer and preparation method thereof - Google Patents
Multifunctional high-tower full-water-soluble sulfur-based fertilizer and preparation method thereof Download PDFInfo
- Publication number
- CN110590429A CN110590429A CN201910800022.9A CN201910800022A CN110590429A CN 110590429 A CN110590429 A CN 110590429A CN 201910800022 A CN201910800022 A CN 201910800022A CN 110590429 A CN110590429 A CN 110590429A
- Authority
- CN
- China
- Prior art keywords
- tower
- trace elements
- medium trace
- temperature
- mixing tank
- 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- Withdrawn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
- C05B—PHOSPHATIC FERTILISERS
- C05B7/00—Fertilisers based essentially on alkali or ammonium orthophosphates
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Fertilizers (AREA)
Abstract
The invention discloses a multifunctional high-tower full-water-soluble sulfur-based fertilizer and a preparation method thereof, wherein the multifunctional high-tower full-water-soluble sulfur-based fertilizer comprises the following components in percentage by mass: 28-35% of urea, 30-48% of potassium sulfate, 17-30% of industrial monoammonium, 0.4-0.8% of ammonium bicarbonate, 4-8% of medium trace elements and 1-2% of biological bacteria. The preparation method adopts a high tower granulation technology, and the mixing of the medium trace elements and the urea is realized through ammoniation treatment, so that the product has the characteristics of high strength, mellow granules and uniform nutrients of the high tower fertilizer, also contains the medium trace elements and biological bacteria required by the growth of crops, and utilizes the medium trace elements and the biological bacteria to activate and repair the soil, thereby realizing the effects of improving the utilization rate of the fertilizer nutrients and improving the soil.
Description
Technical Field
The invention relates to a high-tower compound fertilizer, in particular to a multifunctional high-tower full-water-soluble sulfur-based fertilizer and a preparation method thereof.
Background
The high tower pelletizing process includes heating and melting solid urea or ammonium phosphate nitrate into molten liquid, and adding potash fertilizer, ammonium and stuffing into the molten liquid to form mixed slurry. And (3) spraying and granulating the mixed slurry through a high tower granulator, wherein the granulated material is subjected to heat exchange with gas resistance rising from the bottom of the tower and falls to the bottom of the tower in the falling process of the high tower, and the granular material at the bottom of the tower is subjected to cooling, screening and anti-caking treatment to obtain the granular compound fertilizer.
Compared with the compound fertilizer produced by other processes, the compound fertilizer produced by the high tower granulation process has the characteristics of uniform nutrients, high particle strength and stable product quality, and has the defects that the process characteristics limit, and the product only contains a large amount of inorganic elements such as nitrogen, phosphorus and potassium, and cannot be added with materials for increasing the product functions. For example: because the temperature is high in the pulping process on the tower, the survival of microorganisms is not facilitated, and therefore, the microorganism bacteria cannot be added in the high-tower granulation process; the materials containing medium trace elements mostly contain sulfate radicals such as magnesium sulfate, zinc sulfate, ferrous sulfate, manganese sulfate, copper sulfate and the like, the materials react with urea at high temperature to generate urea sulfate, the viscosity of the urea sulfate is particularly high, the rotating roll production process can improve the granulation rate by utilizing the viscosity of the urea sulfate, but the high tower production process cannot normally carry out production due to the high viscosity of slurry. The problems cause that the high-tower fertilizer product has single function, does not contain medium and trace elements required by crop growth, and cannot effectively improve the utilization rate of fertilizer nutrients and improve the soil structure.
Disclosure of Invention
The invention aims to provide a multifunctional high-tower full-water-soluble sulfur-based fertilizer which not only can provide major elements of nitrogen, phosphorus and potassium required by crops, but also contains medium and trace elements and biological bacteria required by the growth of the crops. The product prepared by activating and restoring soil by using medium and trace elements and biological bacteria has the characteristics of complete functions and good effect, and realizes the effects of improving the nutrient utilization rate and improving the soil.
In order to solve the technical problems, the invention adopts the technical scheme that: the multifunctional high-tower full-water-soluble sulfur-based fertilizer is characterized in that urea accounts for 28-35% of the total input raw material amount by mass, potassium sulfate accounts for 30-48% of the total input raw material amount by mass, industrial monoammonium accounts for 17-30% of the total input raw material amount by mass, ammonium bicarbonate accounts for 0.4-0.8% of the total input raw material amount by mass, medium trace elements account for 4-8% of the total input raw material amount by mass, and biological bacteria accounts for 1-2% of the total input raw material amount by mass.
The mass ratio of the ammonium bicarbonate to the medium trace elements is 1:10, after a plurality of tests, the two are mixed according to the proportion of 1:10, and the ammoniation effect is optimal.
The medium trace element substance is a combination of zinc sulfate, magnesium sulfate, manganese sulfate, ferrous sulfate, calcium carbonate and borax, and the addition amount and variety are determined according to the growth requirements of different crops.
The biological bacteria are one or two combinations of bacillus megaterium and bacillus subtilis, are soil beneficial bacteria, and have the effects of improving the utilization rate of the fertilizer, activating and repairing soil and being beneficial to absorption and utilization of crops.
The preparation method of the multifunctional high-tower full-water-soluble sulfur-based fertilizer is characterized by comprising the following steps of:
(1) pretreatment of medium trace elements (for spare)
1.1 mixing materials: adding metered ammonium bicarbonate and medium and trace elements into a mixing stirrer, uniformly stirring for 5-6min, and performing a large amount of experiments, wherein if urine and the medium and trace elements containing sulfate radicals are directly mixed in a high tower granulation process, urea sulfate is generated by reaction under the working condition of about 100 ℃ to generate a large amount of liquid phase, so that the viscosity of the material is greatly increased, the production cannot be normally performed, and therefore, the medium and trace elements need to be subjected to ammoniation treatment to solve the technical problem that the urine and the medium and trace elements cannot be directly mixed;
1.2, drying and ammoniation: the mixed material enters a drying ammoniation machine, ammoniation and drying treatment of medium trace elements are completed by utilizing the drying temperature, the temperature of gas at the outlet of the drying machine is controlled to be 60-70 ℃, the drying ammoniation time is 15-20min, the water content of the material is controlled to be below 1%, the temperature and the time in the process are particularly important, if the temperature is too high and the time is too long, the decomposition of ammonium bicarbonate is too fast, the ammoniation effect is not achieved, and if the temperature is too low and the time is too short, the ammoniation reaction is insufficient, and the subsequent use is also influenced;
(2) adding metered urea into a melting tank, controlling the temperature of the melting tank to be 120-125 ℃, and overflowing the melted urea solution to a primary mixing tank, wherein the melting temperature is particularly important in the process, if the temperature reaches above 130 ℃, urea is decomposed to generate a large amount of biuret, so that crops burn acres, the temperature is lower than 115 ℃, and the urea is easy to crystallize, so that normal production is influenced;
(3) adding metered potassium sulfate into a primary mixing tank, uniformly mixing the potassium sulfate with a urea solution, controlling the temperature of the primary mixing tank to be 110-115 ℃, and overflowing the mixed molten material into a secondary mixing tank;
(4) adding industrial monoammonium and the medium trace elements treated in the step (1) into a secondary mixing tank in a metering manner, and mixing the industrial monoammonium and the medium trace elements with a molten material for less than 4min to obtain mixed molten slurry, wherein the temperature of the secondary mixing tank is controlled to be 100-105 ℃;
(5) emulsifying the mixed melted slurry by an emulsifying machine, completing spray granulation in a granulation tower by using a differential granulator, and naturally cooling in the granulation tower, wherein the temperature of material particles below the tower is less than 70 ℃;
(6) and respectively carrying out coarse screening and fine screening on material particles below the tower, wherein the diameter of a screen hole of the coarse screen is 4.5mm, the diameter of a screen hole of the fine screen is 2.0mm, the screened particles with the diameter more than 4.5mm and the screened particles with the diameter less than 2.0mm return to a primary mixing tank, and qualified products enter a cooling machine.
(7) Spraying the prepared biological bacterial liquid onto qualified products at the inlet of a cooling machine in an atomizing mode, quickly sucking the biological bacterial liquid by utilizing the temperature of the biological bacterial liquid, adding the biological bacterial liquid in a cooling process, and quickly sucking the bacterial liquid into formed particles by utilizing the strong absorbability and the self temperature of material particles in an over-dry state, so that the situation that a large amount of biological bacteria are killed due to high temperature in a high tower granulation process is prevented, the survival rate of strains is improved, and the cooling time is 30-35 min;
(8) and (4) feeding the cooled qualified product into a wrapping machine, and packaging after anti-caking treatment.
Compared with the prior art, the multifunctional high-tower full-water-soluble sulfur-based fertilizer and the preparation method thereof have the following advantages:
1. the product has comprehensive nutrition, contains major elements of nitrogen, phosphorus and potassium required by crops, and also contains medium and trace elements of sulfur, zinc, calcium, magnesium, manganese, iron, boron and the like and biological bacteria. The product has the effects of promoting the fertilizer synergism, enhancing the soil fertility, improving the physical and chemical properties of the soil, improving the quality and the yield of crops and enhancing the disease resistance of the crops.
2. The product has good water solubility, the industrial monoammonium is fully water-soluble, the medium trace elements have good water solubility, and the product is suitable for cash crops, can be used as a base fertilizer and can also be used as a water-soluble fertilizer for drip irrigation.
Drawings
FIG. 1 is a flow chart of the preparation method of the multifunctional high tower full water-soluble sulfur-based fertilizer.
Detailed Description
The invention is described in further detail below with reference to the following figures and specific examples:
as shown in figure 1, the multifunctional high-tower full-water-soluble sulfur-based fertilizer is characterized in that urea accounts for 28-35% of the total input raw material by mass, potassium sulfate accounts for 30-48% of the total input raw material by mass, industrial monoammonium accounts for 17-30% of the total input raw material by mass, ammonium bicarbonate accounts for 0.4-0.8% of the total input raw material by mass, medium trace elements account for 4-8% of the total input raw material by mass, and biological bacteria accounts for 1-2% of the total input raw material by mass.
The mass ratio of the ammonium bicarbonate to the medium trace elements is 1: 10.
the medium trace element substance is a combination of zinc sulfate, magnesium sulfate, manganese sulfate, ferrous sulfate, calcium carbonate and borax.
The biological bacteria are one or the combination of bacillus megaterium and bacillus subtilis.
The preparation method of the multifunctional high-tower full-water-soluble sulfur-based fertilizer comprises the following steps:
(1) pretreatment of medium trace elements (for spare)
1.1 mixing materials: adding the measured ammonium bicarbonate and the medium and trace elements into a mixing stirrer, and uniformly stirring for 5-6 min;
1.2, drying and ammoniation: the mixed material enters a drying ammoniation machine, ammoniation and drying treatment of medium and trace elements are completed by utilizing the drying temperature, the temperature of gas at the outlet of the drying machine is controlled to be 60-70 ℃, the drying ammoniation time is 15-20min, and the water content of the material is controlled to be below 1%;
(2) adding metered urea into a melting tank, controlling the temperature of the melting tank to be 120-125 ℃, and overflowing the melted urea solution into a primary mixing tank;
(3) adding metered potassium sulfate into a primary mixing tank, uniformly mixing the potassium sulfate with a urea solution, controlling the temperature of the primary mixing tank to be 110-115 ℃, and overflowing the mixed molten material into a secondary mixing tank;
(4) adding industrial monoammonium and the medium trace elements treated in the step (1) into a secondary mixing tank in a metering manner, and mixing the industrial monoammonium and the medium trace elements with a molten material for less than 4min to obtain mixed molten slurry, wherein the temperature of the secondary mixing tank is controlled to be 100-105 ℃;
(5) emulsifying the mixed melted slurry by an emulsifying machine, completing spray granulation in a granulation tower by using a differential granulator, and naturally cooling in the granulation tower, wherein the temperature of material particles below the tower is less than 70 ℃;
(6) and respectively carrying out coarse screening and fine screening on material particles below the tower, wherein the diameter of a screen hole of the coarse screen is 4.5mm, the diameter of a screen hole of the fine screen is 2.0mm, the screened particles with the diameter more than 4.5mm and the screened particles with the diameter less than 2.0mm return to a primary mixing tank, and qualified products enter a cooling machine.
(7) Spraying the prepared biological bacterial liquid onto qualified products at an inlet of a cooling machine in an atomizing mode, and rapidly sucking the biological bacterial liquid by utilizing the temperature of the biological bacterial liquid, wherein the cooling time is 30-35 min;
(8) and (4) feeding the cooled qualified product into a wrapping machine, and packaging after anti-caking treatment.
The invention is further illustrated by the following examples:
example 1: the product proportion is 17-17, taking the consumption quota of 1 ton of product raw materials as an example:
the specific production flow is as follows:
(1) pretreatment of medium trace elements (for spare)
6 kg of metered ammonium bicarbonate (containing 17 percent of N, the mass percentage is the same as below), 15 kg of zinc sulfate, 10 kg of magnesium sulfate, 10 kg of manganese sulfate, 15 kg of calcium carbonate and 10 kg of borax are added into a mixing stirrer and uniformly stirred for 5 min. The stirred mixed material enters a drying ammoniation machine, the temperature of gas at the outlet of the drying machine is controlled at 65 ℃, the drying ammoniation time is 17min, and the water content of the material is controlled below 1%;
(2) adding 304 kilograms of metered urea (containing 46.2 percent of N) into a melting tank, controlling the temperature of the melting tank to be 125 ℃, and overflowing the melted urea solution into a primary mixing tank;
(3) adding 335 kg of metered potassium sulfate (containing K2O 51%) into a primary mixing tank, uniformly mixing with a urea solution by stirring, controlling the temperature of the primary mixing tank at 115 ℃, and overflowing the mixed molten material into a secondary mixing tank;
(4) adding 280 kg of metered industrial monoammonium (containing N11% and P2O 561%) and the medium trace elements treated in the step (1) into a secondary mixing tank, and uniformly mixing with the molten material by stirring, wherein the temperature of the secondary mixing tank is controlled at 105 ℃, and the mixing time with the molten material is 3.5min, so as to obtain mixed molten slurry;
(5) emulsifying the mixed and melted slurry by an emulsifying machine to prepare slurry with good flowing property, completing spray granulation in a granulation tower by using a differential granulator, naturally cooling in the granulation tower, and controlling the temperature of material particles below the tower at 60 ℃;
(6) and respectively carrying out coarse screening and fine screening on material particles below the tower, wherein the diameter of a screen hole of the coarse screen is 4.5mm, the diameter of a screen hole of the fine screen is 2.0mm, the screened particles with the diameter more than 4.5mm and the screened particles with the diameter less than 2.0mm return to a primary mixing tank, and qualified products enter a cooling machine.
(7) Spraying 15 kg of prepared bacillus subtilis liquid on material particles at the inlet of a cooling machine in an atomizing manner, and then cooling for 35 min;
(8) and (4) feeding the cooled qualified product into a wrapping machine, and packaging after anti-caking treatment to obtain the multifunctional high-tower full-water-soluble sulfur-based fertilizer with the granularity of 2-4.5 mm. The product contains 17.22-17.08-17.09% of N-P2O 5-K2O, contains medium and trace elements of sulfur, zinc, magnesium, manganese, calcium, boron and biological bacteria, contains 0.4% of water and 42N of strength, and has smooth and round particles.
Example 2: the product proportion is 16-11-23, taking the consumption quota of 1 ton of product raw materials as an example:
the specific production flow is as follows:
(1) pretreatment of medium trace elements (for spare)
5 kg of metered ammonium bicarbonate (containing 17 percent of N, the mass percentage is the same as the following), 15 kg of zinc sulfate, 10 kg of ferrous sulfate, 10 kg of manganese sulfate and 15 kg of calcium carbonate are added into a mixing stirrer and are uniformly stirred for 5 min. The stirred mixed material enters a drying ammoniation machine, the temperature of gas at the outlet of the drying machine is controlled at 60 ℃, the drying ammoniation time is 15min, and the water content of the material is controlled below 1%;
(2) adding 300 kg of metered urea (containing 46.2 percent of N) into a melting tank, controlling the temperature of the melting tank at 120 ℃, and overflowing the melted urea solution into a primary mixing tank;
(3) 452 kilograms of metered potassium sulfate (containing K2O 51%) is added into a first-stage mixing tank and is uniformly mixed with the urea solution by stirring, the temperature of the first-stage mixing tank is controlled at 110 ℃, and the mixed molten material overflows to a second-stage mixing tank;
(4) adding 183 kg of metered industrial monoammonium (containing N11% and P2O 561%) and medium trace elements treated in the step (1) into a secondary mixing tank, and uniformly mixing with a molten material by stirring, wherein the temperature of the secondary mixing tank is controlled at 100 ℃, and the secondary mixing tank is mixed with the molten material for 3min to obtain mixed molten slurry;
(5) emulsifying the mixed and melted slurry by an emulsifying machine to prepare slurry with good flowing property, completing spray granulation in a granulation tower by using a differential granulator, naturally cooling in the granulation tower, and controlling the temperature of material particles below the tower at 60 ℃;
(6) and respectively carrying out coarse screening and fine screening on material particles below the tower, wherein the diameter of a screen hole of the coarse screen is 4.5mm, the diameter of a screen hole of the fine screen is 2.0mm, the screened particles with the diameter more than 4.5mm and the screened particles with the diameter less than 2.0mm return to a primary mixing tank, and qualified products enter a cooling machine.
(7) Spraying 5 kg of prepared bacillus subtilis liquid and 5 kg of prepared bacillus megaterium liquid on material particles at the inlet of a cooling machine in an atomizing mode, and then cooling for 30 min;
(8) and (4) feeding the cooled qualified product into a wrapping machine, and packaging after anti-caking treatment to obtain the multifunctional high-tower full-water-soluble sulfur-based fertilizer with the granularity of 2-4.5 mm. The product contains 15.96-11.16-23.05% of N-P2O 5-K2O, contains medium and trace elements of sulfur, zinc, iron, manganese, calcium and biological bacteria, contains 0.5% of water and has the strength of 40N, and the particles are smooth and round.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (5)
1. The multifunctional high-tower full-water-soluble sulfur-based fertilizer is characterized in that urea accounts for 28-35% of the total input raw material amount by mass, potassium sulfate accounts for 30-48% of the total input raw material amount by mass, industrial monoammonium accounts for 17-30% of the total input raw material amount by mass, ammonium bicarbonate accounts for 0.4-0.8% of the total input raw material amount by mass, medium trace elements account for 4-8% of the total input raw material amount by mass, and biological bacteria accounts for 1-2% of the total input raw material amount by mass.
2. The multifunctional high tower full water-soluble sulfur-based fertilizer according to claim 1, wherein the mass ratio of ammonium bicarbonate/medium trace elements is 1: 10.
3. The multifunctional high tower full water-soluble sulfur-based fertilizer according to claim 1, wherein the medium trace element substances are combinations of zinc sulfate, magnesium sulfate, manganese sulfate, ferrous sulfate, calcium carbonate and borax.
4. The multifunctional high-tower full-water-soluble sulfur-based fertilizer according to claim 1, wherein the biological bacteria is one or a combination of bacillus megaterium and bacillus subtilis.
5. The preparation method of the multifunctional high tower full water-soluble sulfur-based fertilizer as claimed in claim 1, characterized by comprising the following steps:
(1) pretreatment of medium trace elements (for spare)
1.1 mixing materials: adding metered ammonium bicarbonate and medium trace elements into a mixing stirrer, and uniformly stirring for 5-6 min;
1.2, drying and ammoniation: the mixed material enters a drying ammoniation machine, ammoniation and drying treatment of medium trace elements are completed by utilizing the drying temperature, the temperature of gas at the outlet of the drying machine is controlled to be 60-70 ℃, the drying ammoniation time is 15-20min, and the water content of the material is controlled to be below 1%;
(2) adding metered urea into a melting tank, controlling the temperature of the melting tank to be 120-125 ℃, and overflowing the melted urea solution into a primary mixing tank;
(3) adding metered potassium sulfate into a primary mixing tank, uniformly mixing the potassium sulfate with a urea solution, controlling the temperature of the primary mixing tank to be 110-115 ℃, and overflowing the mixed molten material into a secondary mixing tank;
(4) adding industrial monoammonium and the medium trace elements treated in the step (1) into a secondary mixing tank in a metering manner, and mixing the industrial monoammonium and the medium trace elements with a molten material for less than 4min to obtain mixed molten slurry, wherein the temperature of the secondary mixing tank is controlled to be 100-105 ℃;
(5) emulsifying the mixed melted slurry by an emulsifying machine, completing spray granulation in a granulation tower by using a differential granulator, and naturally cooling in the granulation tower, wherein the temperature of material particles below the tower is less than 70 ℃;
(6) and respectively carrying out coarse screening and fine screening on material particles below the tower, wherein the diameter of a screen hole of the coarse screen is 4.5mm, the diameter of a screen hole of the fine screen is 2.0mm, the screened particles with the diameter more than 4.5mm and the screened particles with the diameter less than 2.0mm return to a primary mixing tank, and qualified products enter a cooling machine.
(7) Spraying the prepared biological bacterial liquid onto qualified products at the inlet of a cooling machine in an atomizing mode, and rapidly sucking the biological bacterial liquid by utilizing the temperature of the biological bacterial liquid, wherein the cooling time is 30-35 min;
(8) and (4) feeding the cooled qualified product into a wrapping machine, and packaging after anti-caking treatment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910800022.9A CN110590429A (en) | 2019-08-26 | 2019-08-26 | Multifunctional high-tower full-water-soluble sulfur-based fertilizer and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910800022.9A CN110590429A (en) | 2019-08-26 | 2019-08-26 | Multifunctional high-tower full-water-soluble sulfur-based fertilizer and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110590429A true CN110590429A (en) | 2019-12-20 |
Family
ID=68855971
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910800022.9A Withdrawn CN110590429A (en) | 2019-08-26 | 2019-08-26 | Multifunctional high-tower full-water-soluble sulfur-based fertilizer and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110590429A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111517855A (en) * | 2020-04-20 | 2020-08-11 | 张瑞霞 | Special fertilizer for preventing continuous cropping of soybeans and preparation method thereof |
| CN111574276A (en) * | 2020-04-23 | 2020-08-25 | 陈志付 | Special nitrogen-potassium topdressing fertilizer for nitro-sulfenyl vegetables and preparation method thereof |
| CN111646836A (en) * | 2020-04-20 | 2020-09-11 | 杨新正 | Organic-inorganic high-tower urea-based fertilizer and preparation method thereof |
| CN111704501A (en) * | 2020-06-28 | 2020-09-25 | 河北百禾丰化肥有限公司 | Preparation method of high-tower medium-trace element compound fertilizer |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010045712A1 (en) * | 2008-10-22 | 2010-04-29 | Mitanic, Inc. | Controlled release nitrogeneous fertilizer composition system |
| CN102731198A (en) * | 2012-05-28 | 2012-10-17 | 徐州市芭田生态有限公司 | Method for producing organic-inorganic compound fertilizer by using high tower melting granulation process |
| CN105110999A (en) * | 2015-10-15 | 2015-12-02 | 天津芦阳化肥股份有限公司 | Biological compound fertilizer for soybeans and preparation method of biological compound fertilizer |
| CN106008003A (en) * | 2016-05-31 | 2016-10-12 | 史丹利化肥扶余有限公司 | High tower granulation produced high concentration compound fertilizer and production method thereof |
| CN109485523A (en) * | 2018-12-25 | 2019-03-19 | 孟宪英 | Microelement bio-feritlizer and preparation method in a kind of high activity organic multicomponent |
| CN109485506A (en) * | 2018-12-25 | 2019-03-19 | 孟宪英 | Containing there are many wheat special complex fertilizers of phosphorus element and preparation method thereof |
-
2019
- 2019-08-26 CN CN201910800022.9A patent/CN110590429A/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010045712A1 (en) * | 2008-10-22 | 2010-04-29 | Mitanic, Inc. | Controlled release nitrogeneous fertilizer composition system |
| CN102731198A (en) * | 2012-05-28 | 2012-10-17 | 徐州市芭田生态有限公司 | Method for producing organic-inorganic compound fertilizer by using high tower melting granulation process |
| CN105110999A (en) * | 2015-10-15 | 2015-12-02 | 天津芦阳化肥股份有限公司 | Biological compound fertilizer for soybeans and preparation method of biological compound fertilizer |
| CN106008003A (en) * | 2016-05-31 | 2016-10-12 | 史丹利化肥扶余有限公司 | High tower granulation produced high concentration compound fertilizer and production method thereof |
| CN109485523A (en) * | 2018-12-25 | 2019-03-19 | 孟宪英 | Microelement bio-feritlizer and preparation method in a kind of high activity organic multicomponent |
| CN109485506A (en) * | 2018-12-25 | 2019-03-19 | 孟宪英 | Containing there are many wheat special complex fertilizers of phosphorus element and preparation method thereof |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111517855A (en) * | 2020-04-20 | 2020-08-11 | 张瑞霞 | Special fertilizer for preventing continuous cropping of soybeans and preparation method thereof |
| CN111646836A (en) * | 2020-04-20 | 2020-09-11 | 杨新正 | Organic-inorganic high-tower urea-based fertilizer and preparation method thereof |
| CN111574276A (en) * | 2020-04-23 | 2020-08-25 | 陈志付 | Special nitrogen-potassium topdressing fertilizer for nitro-sulfenyl vegetables and preparation method thereof |
| CN111704501A (en) * | 2020-06-28 | 2020-09-25 | 河北百禾丰化肥有限公司 | Preparation method of high-tower medium-trace element compound fertilizer |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110590429A (en) | Multifunctional high-tower full-water-soluble sulfur-based fertilizer and preparation method thereof | |
| CN110590437A (en) | Multifunctional high-tower compound fertilizer and preparation method thereof | |
| CN110606779A (en) | High-tower humic acid compound fertilizer and preparation method thereof | |
| CN100475752C (en) | Production method and equipment for highly effective slow releasing compound fertilizer and product | |
| CN100537489C (en) | Method for producing compound fertilizer by high tower granulating | |
| CN103936524B (en) | A kind of production method of urea aldehyde slow-release compound fertilizer | |
| CN102863281B (en) | Method for producing high-tower nitro-sulfenyl compound fertilizer and production system applying method | |
| CN104529674B (en) | A kind of humic acid special fertilizer for sweet potato and preparation method thereof | |
| CN103159550B (en) | Environment-friendly slow-release sulfur-based nitrogen potassium compound fertilizer | |
| CN102633553B (en) | Method for producing high-tower ammonium phosphate compound fertilizer | |
| CN103804092A (en) | Special fertilizer for sugarcane and preparation method of fertilizer | |
| CN110590439A (en) | High-tower slow-release compound fertilizer and preparation method thereof | |
| CN101717289A (en) | Method for producing Nitrogen-Phosphorus-Potassium compound fertilizer by ammonia and acid tubular reactor | |
| CN102503639A (en) | Melt granulation humic acid functional fertilizer special for corns and preparing method thereof | |
| CN103193533B (en) | Method for improving and stabilizing high tower nitro sulfenyl composite fertilizer product | |
| CN102491815B (en) | High-concentration nano-carbon cotton special fertilizer and preparation method thereof | |
| CN110590438A (en) | High-tower polymorphic nitrogen and potassium topdressing compound fertilizer and preparation method thereof | |
| CN101407438A (en) | Multielement decomposition type coated controlled release fertilizer and production method thereof | |
| CN101165012B (en) | High tower slow release composite fertilizer containing ureaformaldehyde and producing method thereof | |
| CN102775222A (en) | Production method of drying-free compound fertilizer | |
| CN107986874A (en) | A kind of method of watery fusion technique productions high tower fertilizer | |
| CN111559932A (en) | Synergistic high-tower nitro-sulfenyl fertilizer and preparation method thereof | |
| CN111574275A (en) | Synergistic high-tower urea-based fertilizer and preparation method thereof | |
| CN111517858A (en) | High-tower multi-phosphorus nitrogen and phosphorus fertilizer and preparation method thereof | |
| CN1182085C (en) | Process for preparing high-concentration compound N-P-K fertilizer by tower-type granulating |
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: 20191220 |