CN112707757A - Environment-friendly compound fertilizer and preparation process thereof - Google Patents
Environment-friendly compound fertilizer and preparation process thereof Download PDFInfo
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- CN112707757A CN112707757A CN202110119674.3A CN202110119674A CN112707757A CN 112707757 A CN112707757 A CN 112707757A CN 202110119674 A CN202110119674 A CN 202110119674A CN 112707757 A CN112707757 A CN 112707757A
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05B—PHOSPHATIC FERTILISERS
- C05B7/00—Fertilisers based essentially on alkali or ammonium orthophosphates
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G5/00—Fertilisers characterised by their form
- C05G5/10—Solid or semi-solid fertilisers, e.g. powders
- C05G5/12—Granules or flakes
Abstract
The invention discloses an environment-friendly compound fertilizer and a preparation process thereof, wherein the preparation process comprises the following operation steps: melting and stirring urea, ammonium phosphate, potassium sulfate, potassium chloride and ammonium bicarbonate, cooling to prepare a first mixture, preparing the first mixture into a first granular raw material through a first granulator, melting and stirring magnetite powder, borax, zinc sulfate and manganese sulfate, cooling to prepare a second mixture, preparing the second mixture into a second granular raw material through a second granulator, preparing the second granular raw material into a powder raw material, attaching the powder raw material to the first granular raw material through distilled water to prepare compound fertilizer granules, and drying the compound fertilizer granules to prepare the environment-friendly compound fertilizer. The environment-friendly compound fertilizer prepared by the invention is convenient for reducing the diseases of crops, improving the yield of the crops and reducing the pollution of land and water sources.
Description
Technical Field
The invention relates to the technical field of compound fertilizers, in particular to an environment-friendly compound fertilizer and a preparation process thereof.
Background
As a big agricultural country, China is the country with the largest chemical fertilizer consumption in the world, and agriculture is also an important foundation of national economy. A compound fertilizer is a substance which provides one or more nutrient elements necessary for plants, improves the soil property and improves the soil fertility level. The compound fertilizer is a chemical fertilizer containing any two or three of crop nutrient elements of nitrogen, phosphorus and potassium, and is made by chemical method or (and) mixing method. The compound fertilizer can also be understood according to the production process of the compound fertilizer, namely the compound fertilizer produced by a physical mixing method. The function of the fertilizer is to meet the comprehensive needs and balance of various nutrients required by agriculture under different production conditions. Is largely used in modern agriculture. In recent years, nitrogen, phosphorus and potassium compound fertilizers are widely used, and the addition of medium and trace elements is neglected, so that the yield of crops is not effectively improved although the use amount of the compound fertilizer is increased, and the phenomena of crop disease aggravation and land and water source pollution appear.
Disclosure of Invention
The invention mainly aims to provide an environment-friendly compound fertilizer and a preparation process thereof, which can effectively solve the problems in the background art.
In order to achieve the purpose, the invention adopts the technical scheme that:
the environment-friendly compound fertilizer comprises the following raw material components in parts by weight: 30-40 parts of urea, 10-20 parts of ammonium phosphate, 10-20 parts of potassium sulfate, 20-30 parts of potassium chloride, 10-20 parts of ammonium bicarbonate, 3-10 parts of magnetite powder, 3-10 parts of borax, 3-10 parts of zinc sulfate, 3-10 parts of manganese sulfate and 30-50 parts of distilled water.
As a preferred technical scheme of the invention, the raw materials of the environment-friendly compound fertilizer comprise the following components in parts by weight: 30-35 parts of urea, 10-15 parts of ammonium phosphate, 10-15 parts of potassium sulfate, 20-25 parts of potassium chloride, 10-15 parts of ammonium bicarbonate, 3-5 parts of magnetite powder, 3-5 parts of borax, 3-5 parts of zinc sulfate, 3-5 parts of manganese sulfate and 30-40 parts of distilled water.
As a preferred technical scheme of the invention, the raw materials of the environment-friendly compound fertilizer comprise the following components in parts by weight: 30 parts of urea, 10 parts of ammonium phosphate, 10 parts of potassium sulfate, 20 parts of potassium chloride, 10 parts of ammonium bicarbonate, 3 parts of magnetite powder, 3 parts of borax, 3 parts of zinc sulfate, 3 parts of manganese sulfate and 40 parts of distilled water.
The invention also comprises a preparation process of the environment-friendly compound fertilizer, which comprises the following steps:
s1, putting urea, ammonium phosphate, potassium sulfate, potassium chloride and ammonium bicarbonate into a high-temperature melting furnace in proportion to perform high-temperature melting at the temperature of 500 ℃ and 800 ℃, stirring by using a stirring device at 20-30 revolutions per minute, and uniformly stirring a mixture of the urea, the ammonium phosphate, the potassium sulfate, the potassium chloride and the ammonium bicarbonate in a molten state to prepare a first mixture in a molten state;
s2, taking the first mixture out of the high-temperature melting furnace, putting the first mixture into a cooling vessel, cooling the first mixture to room temperature, and putting the first mixture cooled to room temperature into a first granulator for granulation to prepare a first granular raw material;
s3, putting the magnetite powder, the borax, the zinc sulfate and the manganese sulfate into a high-temperature melting furnace in proportion to carry out 800-DEG C high-temperature melting, stirring by using a stirring device at 20-30 revolutions per minute, and uniformly stirring the mixture of the magnetite powder, the borax, the zinc sulfate and the manganese sulfate in a molten state to prepare a second mixture in the molten state;
s4, taking the second mixture out of the high-temperature melting furnace, putting the second mixture into a cooling vessel, cooling the second mixture to room temperature, and putting the second mixture cooled to room temperature into a second granulator for granulation to prepare a second granular raw material;
s5, putting the second granular raw materials into a grinder to be ground to prepare powder raw materials;
s6, placing the first granular raw materials into a stirring device, stirring at the speed of 20-30 revolutions per minute, spraying atomized distilled water into the stirring device, then putting the powder raw materials into the stirring device, and attaching the powder raw materials to the first granular raw materials to obtain compound fertilizer granules;
s7, placing the compound fertilizer particles into an oven to be dried at the temperature of 30-50 ℃, taking out the compound fertilizer particles to be cooled to room temperature, and bagging the cooled compound fertilizer particles to obtain the environment-friendly compound fertilizer.
As a preferable technical scheme of the invention, the mesh number of the first granular raw material is 100-200 meshes.
As a preferable technical scheme of the invention, the mesh number of the second granular raw material is 200-300 meshes.
In a preferred embodiment of the present invention, the distilled water is sprayed into the stirring device through a sprayer, and the sprayer is installed inside the stirring device.
As a preferred technical scheme of the invention, the first granulator and the second granulator both adopt disc granulators, and the environment-friendly compound fertilizer is packaged in round granules.
Compared with the prior art, the invention has the beneficial effects that:
1. urea, ammonium phosphate, potassium sulfate, potassium chloride and ammonium bicarbonate are melted and stirred, cooled to prepare a first mixture, and the first mixture is prepared into a first granular raw material through a first granulator, so that nitrogen, phosphorus and potassium can be mixed uniformly;
2. the magnetite powder, the borax, the zinc sulfate and the manganese sulfate are melted and stirred, and cooled to prepare a second mixture, the second mixture is prepared into a second granular raw material through a second granulator, and the second granular raw material is prepared into a powdery raw material, so that trace elements can be uniformly mixed;
3. the powdery raw materials are attached to the first granular raw materials through distilled water to prepare compound fertilizer particles, and the compound fertilizer particles are dried to prepare the environment-friendly compound fertilizer, so that the diseases of crops can be reduced, the yield of the crops can be improved, and the pollution to land and water sources can be reduced.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
Example 1
The environment-friendly compound fertilizer comprises the following raw material components in parts by weight: 30-40 parts of urea, 10-20 parts of ammonium phosphate, 10-20 parts of potassium sulfate, 20-30 parts of potassium chloride, 10-20 parts of ammonium bicarbonate, 3-10 parts of magnetite powder, 3-10 parts of borax, 3-10 parts of zinc sulfate, 3-10 parts of manganese sulfate and 30-50 parts of distilled water.
In this embodiment, preferably, the raw materials of the environment-friendly compound fertilizer comprise, by weight: 30-35 parts of urea, 10-15 parts of ammonium phosphate, 10-15 parts of potassium sulfate, 20-25 parts of potassium chloride, 10-15 parts of ammonium bicarbonate, 3-5 parts of magnetite powder, 3-5 parts of borax, 3-5 parts of zinc sulfate, 3-5 parts of manganese sulfate and 30-40 parts of distilled water.
In this embodiment, preferably, the raw materials of the environment-friendly compound fertilizer comprise, by weight: 30 parts of urea, 10 parts of ammonium phosphate, 10 parts of potassium sulfate, 20 parts of potassium chloride, 10 parts of ammonium bicarbonate, 3 parts of magnetite powder, 3 parts of borax, 3 parts of zinc sulfate, 3 parts of manganese sulfate and 40 parts of distilled water.
The invention also comprises a preparation process of the environment-friendly compound fertilizer, which comprises the following steps:
s1, putting urea, ammonium phosphate, potassium sulfate, potassium chloride and ammonium bicarbonate into a high-temperature melting furnace in proportion to perform high-temperature melting at the temperature of 500 ℃ and 800 ℃, stirring by using a stirring device at 20-30 revolutions per minute, and uniformly stirring a mixture of the urea, the ammonium phosphate, the potassium sulfate, the potassium chloride and the ammonium bicarbonate in a molten state to prepare a first mixture in a molten state;
s2, taking the first mixture out of the high-temperature melting furnace, putting the first mixture into a cooling vessel, cooling the first mixture to room temperature, and putting the first mixture cooled to room temperature into a first granulator for granulation to prepare a first granular raw material;
s3, putting the magnetite powder, the borax, the zinc sulfate and the manganese sulfate into a high-temperature melting furnace in proportion to carry out 800-DEG C high-temperature melting, stirring by using a stirring device at 20-30 revolutions per minute, and uniformly stirring the mixture of the magnetite powder, the borax, the zinc sulfate and the manganese sulfate in a molten state to prepare a second mixture in the molten state;
s4, taking the second mixture out of the high-temperature melting furnace, putting the second mixture into a cooling vessel, cooling the second mixture to room temperature, and putting the second mixture cooled to room temperature into a second granulator for granulation to prepare a second granular raw material;
s5, putting the second granular raw materials into a grinder to be ground to prepare powder raw materials;
s6, placing the first granular raw materials into a stirring device, stirring at the speed of 20-30 revolutions per minute, spraying atomized distilled water into the stirring device, then putting the powder raw materials into the stirring device, and attaching the powder raw materials to the first granular raw materials to obtain compound fertilizer granules;
s7, placing the compound fertilizer particles into an oven to be dried at the temperature of 30-50 ℃, taking out the compound fertilizer particles to be cooled to room temperature, and bagging the cooled compound fertilizer particles to obtain the environment-friendly compound fertilizer.
In this embodiment, the mesh number of the first granular raw material is preferably 100-200 meshes.
In this embodiment, the mesh number of the second granular raw material is preferably 200-300 meshes.
In this embodiment, preferably, the distilled water is sprayed into the stirring device through a sprayer, and the sprayer is installed inside the stirring device.
In this embodiment, preferably, the first granulator and the second granulator both adopt a disc granulator, and the environment-friendly compound fertilizer is packaged in round granules.
Example 2
The environment-friendly compound fertilizer comprises the following raw material components in parts by weight: 30-40 parts of urea, 10-20 parts of ammonium phosphate, 10-20 parts of potassium sulfate, 20-30 parts of potassium chloride, 10-20 parts of ammonium bicarbonate, 3-10 parts of magnetite powder, 3-10 parts of borax, 3-10 parts of zinc sulfate, 3-10 parts of manganese sulfate and 30-50 parts of distilled water.
In this embodiment, preferably, the raw materials of the environment-friendly compound fertilizer comprise, by weight: 30-35 parts of urea, 10-15 parts of ammonium phosphate, 10-15 parts of potassium sulfate, 20-25 parts of potassium chloride, 10-15 parts of ammonium bicarbonate, 3-5 parts of magnetite powder, 3-5 parts of borax, 3-5 parts of zinc sulfate, 3-5 parts of manganese sulfate and 30-40 parts of distilled water.
In this embodiment, preferably, the raw materials of the environment-friendly compound fertilizer comprise, by weight: 30 parts of urea, 10 parts of ammonium phosphate, 10 parts of potassium sulfate, 20 parts of potassium chloride, 10 parts of ammonium bicarbonate, 3 parts of magnetite powder, 3 parts of borax, 3 parts of zinc sulfate, 3 parts of manganese sulfate and 40 parts of distilled water.
The invention also comprises a preparation process of the environment-friendly compound fertilizer, which comprises the following steps:
s1, putting urea, ammonium phosphate, potassium sulfate, potassium chloride and ammonium bicarbonate into a high-temperature melting furnace in proportion to perform 500-600 ℃ high-temperature melting, stirring at 20-25 revolutions per minute by using a stirring device, and uniformly stirring a mixture of the urea, the ammonium phosphate, the potassium sulfate, the potassium chloride and the ammonium bicarbonate in a molten state to prepare a first mixture in the molten state;
s2, taking the first mixture out of the high-temperature melting furnace, putting the first mixture into a cooling vessel, cooling the first mixture to room temperature, and putting the first mixture cooled to room temperature into a first granulator for granulation to prepare a first granular raw material;
s3, putting the magnetite powder, the borax, the zinc sulfate and the manganese sulfate into a high-temperature melting furnace in proportion to carry out 800-DEG C high-temperature melting at 900 ℃, simultaneously stirring by using a stirring device at 20-25 revolutions per minute, and uniformly stirring the mixture of the magnetite powder, the borax, the zinc sulfate and the manganese sulfate in a molten state to prepare a second mixture in the molten state;
s4, taking the second mixture out of the high-temperature melting furnace, putting the second mixture into a cooling vessel, cooling the second mixture to room temperature, and putting the second mixture cooled to room temperature into a second granulator for granulation to prepare a second granular raw material;
s5, putting the second granular raw materials into a grinder to be ground to prepare powder raw materials;
s6, placing the first granular raw materials into a stirring device, stirring at the speed of 20-25 revolutions per minute, spraying atomized distilled water into the stirring device, then putting the powder raw materials into the stirring device, and attaching the powder raw materials to the first granular raw materials to obtain compound fertilizer granules;
s7, placing the compound fertilizer particles into an oven to be dried at the temperature of 30-40 ℃, then taking out the compound fertilizer particles to be cooled to room temperature, and bagging the cooled compound fertilizer particles to obtain the environment-friendly compound fertilizer.
In this embodiment, the mesh number of the first granular raw material is preferably 100-150 meshes.
In this embodiment, the mesh number of the second granular raw material is preferably 200-250 meshes.
In this embodiment, preferably, the distilled water is sprayed into the stirring device through a sprayer, and the sprayer is installed inside the stirring device.
In this embodiment, preferably, the first granulator and the second granulator both adopt a disc granulator, and the environment-friendly compound fertilizer is packaged in round granules.
Example 3
The environment-friendly compound fertilizer comprises the following raw material components in parts by weight: 30-40 parts of urea, 10-20 parts of ammonium phosphate, 10-20 parts of potassium sulfate, 20-30 parts of potassium chloride, 10-20 parts of ammonium bicarbonate, 3-10 parts of magnetite powder, 3-10 parts of borax, 3-10 parts of zinc sulfate, 3-10 parts of manganese sulfate and 30-50 parts of distilled water.
In this embodiment, preferably, the raw materials of the environment-friendly compound fertilizer comprise, by weight: 30-35 parts of urea, 10-15 parts of ammonium phosphate, 10-15 parts of potassium sulfate, 20-25 parts of potassium chloride, 10-15 parts of ammonium bicarbonate, 3-5 parts of magnetite powder, 3-5 parts of borax, 3-5 parts of zinc sulfate, 3-5 parts of manganese sulfate and 30-40 parts of distilled water.
In this embodiment, preferably, the raw materials of the environment-friendly compound fertilizer comprise, by weight: 30 parts of urea, 10 parts of ammonium phosphate, 10 parts of potassium sulfate, 20 parts of potassium chloride, 10 parts of ammonium bicarbonate, 3 parts of magnetite powder, 3 parts of borax, 3 parts of zinc sulfate, 3 parts of manganese sulfate and 40 parts of distilled water.
The invention also comprises a preparation process of the environment-friendly compound fertilizer, which comprises the following steps:
s1, proportionally putting urea, ammonium phosphate, potassium sulfate, potassium chloride and ammonium bicarbonate into a high-temperature melting furnace for high-temperature melting at 500 ℃, stirring by using a stirring device at 25 revolutions per minute, and uniformly stirring a mixture of the urea, the ammonium phosphate, the potassium sulfate, the potassium chloride and the ammonium bicarbonate in a molten state to prepare a first mixture in the molten state;
s2, taking the first mixture out of the high-temperature melting furnace, putting the first mixture into a cooling vessel, cooling the first mixture to room temperature, and putting the first mixture cooled to room temperature into a first granulator for granulation to prepare a first granular raw material;
s3, putting the magnetite powder, the borax, the zinc sulfate and the manganese sulfate into a high-temperature melting furnace in proportion to perform high-temperature melting at 900 ℃, simultaneously stirring by using a stirring device at 25 revolutions per minute, and uniformly stirring a mixture of the magnetite powder, the borax, the zinc sulfate and the manganese sulfate in a molten state to prepare a second mixture in the molten state;
s4, taking the second mixture out of the high-temperature melting furnace, putting the second mixture into a cooling vessel, cooling the second mixture to room temperature, and putting the second mixture cooled to room temperature into a second granulator for granulation to prepare a second granular raw material;
s5, putting the second granular raw materials into a grinder to be ground to prepare powder raw materials;
s6, placing the first granular raw materials into a stirring device, stirring at 25 revolutions per minute, spraying atomized distilled water into the stirring device, then putting the powder raw materials into the stirring device, and attaching the powder raw materials to the first granular raw materials to prepare compound fertilizer granules;
s7, placing the compound fertilizer particles into an oven to be dried at 40 ℃, taking out the compound fertilizer particles to be cooled to room temperature, and bagging the compound fertilizer particles to obtain the environment-friendly compound fertilizer.
In this embodiment, the mesh number of the first granular raw material is preferably 150 meshes.
In this embodiment, the mesh number of the second granular raw material is preferably 250 meshes.
In this embodiment, preferably, the distilled water is sprayed into the stirring device through a sprayer, and the sprayer is installed inside the stirring device.
In this embodiment, preferably, the first granulator and the second granulator both adopt a disc granulator, and the environment-friendly compound fertilizer is packaged in round granules.
According to the invention, urea, ammonium phosphate, potassium sulfate, potassium chloride and ammonium bicarbonate are melted and stirred, and cooled to prepare a first mixture, and the first mixture is prepared into a first granular raw material through a first granulator, so that nitrogen, phosphorus and potassium can be uniformly mixed; the magnetite powder, the borax, the zinc sulfate and the manganese sulfate are melted and stirred, and cooled to prepare a second mixture, the second mixture is prepared into a second granular raw material through a second granulator, and the second granular raw material is prepared into a powdery raw material, so that trace elements can be uniformly mixed; the powdery raw materials are attached to the first granular raw materials through distilled water to prepare compound fertilizer particles, and the compound fertilizer particles are dried to prepare the environment-friendly compound fertilizer, so that the diseases of crops can be reduced, the yield of the crops can be improved, and the pollution to land and water sources can be reduced.
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (8)
1. An environment-friendly compound fertilizer is characterized in that: the environment-friendly compound fertilizer comprises the following raw material components in parts by weight: 30-40 parts of urea, 10-20 parts of ammonium phosphate, 10-20 parts of potassium sulfate, 20-30 parts of potassium chloride, 10-20 parts of ammonium bicarbonate, 3-10 parts of magnetite powder, 3-10 parts of borax, 3-10 parts of zinc sulfate, 3-10 parts of manganese sulfate and 30-50 parts of distilled water.
2. The environment-friendly compound fertilizer as claimed in claim 1, wherein: the environment-friendly compound fertilizer comprises the following raw material components in parts by weight: 30-35 parts of urea, 10-15 parts of ammonium phosphate, 10-15 parts of potassium sulfate, 20-25 parts of potassium chloride, 10-15 parts of ammonium bicarbonate, 3-5 parts of magnetite powder, 3-5 parts of borax, 3-5 parts of zinc sulfate, 3-5 parts of manganese sulfate and 30-40 parts of distilled water.
3. The environment-friendly compound fertilizer as claimed in claim 1, wherein: the environment-friendly compound fertilizer comprises the following raw material components in parts by weight: 30 parts of urea, 10 parts of ammonium phosphate, 10 parts of potassium sulfate, 20 parts of potassium chloride, 10 parts of ammonium bicarbonate, 3 parts of magnetite powder, 3 parts of borax, 3 parts of zinc sulfate, 3 parts of manganese sulfate and 40 parts of distilled water.
4. The preparation process of the environment-friendly compound fertilizer as claimed in claim 1, wherein the preparation process comprises the following steps: the method comprises the following steps:
s1, putting urea, ammonium phosphate, potassium sulfate, potassium chloride and ammonium bicarbonate into a high-temperature melting furnace in proportion to perform high-temperature melting at the temperature of 500 ℃ and 800 ℃, stirring by using a stirring device at 20-30 revolutions per minute, and uniformly stirring a mixture of the urea, the ammonium phosphate, the potassium sulfate, the potassium chloride and the ammonium bicarbonate in a molten state to prepare a first mixture in a molten state;
s2, taking the first mixture out of the high-temperature melting furnace, putting the first mixture into a cooling vessel, cooling the first mixture to room temperature, and putting the first mixture cooled to room temperature into a first granulator for granulation to prepare a first granular raw material;
s3, putting the magnetite powder, the borax, the zinc sulfate and the manganese sulfate into a high-temperature melting furnace in proportion to carry out 800-DEG C high-temperature melting, stirring by using a stirring device at 20-30 revolutions per minute, and uniformly stirring the mixture of the magnetite powder, the borax, the zinc sulfate and the manganese sulfate in a molten state to prepare a second mixture in the molten state;
s4, taking the second mixture out of the high-temperature melting furnace, putting the second mixture into a cooling vessel, cooling the second mixture to room temperature, and putting the second mixture cooled to room temperature into a second granulator for granulation to prepare a second granular raw material;
s5, putting the second granular raw materials into a grinder to be ground to prepare powder raw materials;
s6, placing the first granular raw materials into a stirring device, stirring at the speed of 20-30 revolutions per minute, spraying atomized distilled water into the stirring device, then putting the powder raw materials into the stirring device, and attaching the powder raw materials to the first granular raw materials to obtain compound fertilizer granules;
s7, placing the compound fertilizer particles into an oven to be dried at the temperature of 30-50 ℃, taking out the compound fertilizer particles to be cooled to room temperature, and bagging the cooled compound fertilizer particles to obtain the environment-friendly compound fertilizer.
5. The preparation process of the environment-friendly compound fertilizer as claimed in claim 4, wherein the preparation process comprises the following steps: the mesh number of the first granular raw material is 100-200 meshes.
6. The preparation process of the environment-friendly compound fertilizer as claimed in claim 4, wherein the preparation process comprises the following steps: the mesh number of the second granular raw material is 200-300 meshes.
7. The process for preparing an environment-friendly compound fertilizer as claimed in claim 4, wherein the distilled water is sprayed into the stirring device through a sprayer, and the sprayer is installed inside the stirring device.
8. The preparation process of the environment-friendly compound fertilizer as claimed in claim 4, wherein the first granulator and the second granulator are both disc granulators, and the environment-friendly compound fertilizer is in a round granule package.
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| CN202110119674.3A CN112707757A (en) | 2021-01-28 | 2021-01-28 | Environment-friendly compound fertilizer and preparation process thereof |
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| CN202110119674.3A CN112707757A (en) | 2021-01-28 | 2021-01-28 | Environment-friendly compound fertilizer and preparation process thereof |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1556072A (en) * | 2004-01-12 | 2004-12-22 | 山东新红日新肥业有限公司 | Manufacturing method of nitrogen phosphorus potassium cmposite fertilizer rich in nitrogen and potassium |
| CN107141085A (en) * | 2017-05-26 | 2017-09-08 | 魏万辉 | Carbonic acid K compound fertilizer and its preparation technology |
| CN110903125A (en) * | 2019-07-19 | 2020-03-24 | 贵州天宝丰原生态农业科技有限公司 | Compound fertilizer and production process thereof |
-
2021
- 2021-01-28 CN CN202110119674.3A patent/CN112707757A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1556072A (en) * | 2004-01-12 | 2004-12-22 | 山东新红日新肥业有限公司 | Manufacturing method of nitrogen phosphorus potassium cmposite fertilizer rich in nitrogen and potassium |
| CN107141085A (en) * | 2017-05-26 | 2017-09-08 | 魏万辉 | Carbonic acid K compound fertilizer and its preparation technology |
| CN110903125A (en) * | 2019-07-19 | 2020-03-24 | 贵州天宝丰原生态农业科技有限公司 | Compound fertilizer and production process thereof |
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