CN113929534A - Urea-based compound fertilizer containing mineral potassium fulvate and trace elements and preparation method thereof - Google Patents
Urea-based compound fertilizer containing mineral potassium fulvate and trace elements and preparation method thereof Download PDFInfo
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- CN113929534A CN113929534A CN202111426859.5A CN202111426859A CN113929534A CN 113929534 A CN113929534 A CN 113929534A CN 202111426859 A CN202111426859 A CN 202111426859A CN 113929534 A CN113929534 A CN 113929534A
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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
- C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
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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
- C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
- C05G3/80—Soil conditioners
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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
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- Life Sciences & Earth Sciences (AREA)
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- Organic Chemistry (AREA)
- Pest Control & Pesticides (AREA)
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Abstract
The invention relates to a urea-based compound fertilizer containing mineral potassium fulvate and trace elements and a preparation method thereof, belonging to the technical field of agricultural fertilizers. The composition comprises the following raw materials in parts by weight: 20-30 parts of urea, 10-15 parts of diammonium phosphate, 10-15 parts of calcium magnesium phosphate fertilizer, 10-15 parts of potassium chloride, 10-15 parts of concentrated sulfuric acid, 3-10 parts of mineral potassium fulvate, 2-4 parts of trace elements and 1-2 parts of diethylaminoethanol caproate. The compound fertilizer can effectively stimulate the growth and development of plants, and accelerate the rooting, the root cultivation and the root protection of crops; the fertilizer consumption can be reduced, medium trace elements are combined, the utilization rate of the fertilizer is improved, and the effect is enhanced; can directly participate in plant metabolism, improve photosynthesis, increase sugar content, solve the problem of fruit cracking, improve crop quality, and greatly increase yield and income; in addition, the soil loosening property can be improved, the functions of ventilation and water retention are enhanced, the soil can be activated, the balance of water and nutrients of crops is achieved, and the stress resistance capabilities of the crops such as drought resistance, cold resistance, disease resistance and the like are enhanced.
Description
Technical Field
The invention relates to a urea-based compound fertilizer containing mineral potassium fulvate and trace elements and a preparation method thereof, belonging to the technical field of agricultural fertilizers.
Background
The source of modern human food is dependent on agricultural production as the first industry. Due to the explosive growth of the world population, the supply of nutrients by soil base fertility cannot produce enough food to meet the needs of human beings. Therefore, in agricultural production we must apply large amounts of fertilizer. The use of agricultural fertilizers and synthetic regulators has led to a great development of agriculture, but these chemical agents cause deterioration of the agroecological environment, decrease of the quality of agricultural products, and threaten the survival and development of human beings.
From the viewpoint of the fertilizer production method, a compound fertilizer in which urea is used as a nitrogen source is called a urea-based compound fertilizer. The urea-based compound fertilizer is a neutral fertilizer, has strong adaptability to soil and crops, is convenient to apply, and can save a large amount of fertilizer packaging, transporting, storing and fertilizing expenses. Particularly, in recent years, with the development of agricultural production and the national policy of advancing soil testing and formulated fertilization, farmers switch from applying simple substance fertilizers to applying more compound fertilizers, and a wider market development space is provided for various compound fertilizers such as urea-based compound fertilizers and the like.
The urea-based compound fertilizer is a high-concentration nitrogen-phosphorus-potassium multi-element compound fertilizer prepared by secondary processing by using urea as a nitrogen source and using basic fertilizers such as ammonium chloride, potassium sulfate, heavy calcium, ammonium phosphate and the like as raw materials, and common production methods comprise an extrusion method, a granulation method, a slurry method, a melt method and the like. Among them, the conventional granulation method is most commonly used. In the compound fertilizer produced by adopting a granulation method in the prior production, high-temperature molten urine is adopted, new biuret is easy to generate, and the content of the biuret is generally higher and exceeds the national standard, so that the strict control of the content of the biuret in the high-tower compound fertilizer is an important subject for improving the quality of the compound fertilizer; in addition, the utilization rate of the existing fertilizer is not high, how to improve the utilization rate of the fertilizer and realize the ecologization of the fertilizer becomes a problem which needs to be solved urgently in the agricultural development of China, and the development of efficient and ecological fertilizers becomes a necessary trend and development trend.
Disclosure of Invention
The invention provides a urea-based compound fertilizer containing mineral potassium fulvate and trace elements, which aims to overcome the defects of the prior art, realize the induction of plant to generate disease resistance, improve the disease resistance of plants, reduce the application amount of pesticide and fertilizer and synthetic regulator, promote the growth of roots, stems and leaves of the plants, resist lodging and regulate the salinity and alkalinity of the soil.
In order to achieve the technical purpose, the invention adopts the technical scheme that: a urea-based compound fertilizer containing mineral potassium fulvate and trace elements comprises the following raw materials in parts by weight: 20-30 parts of urea, 10-15 parts of diammonium phosphate, 10-15 parts of calcium magnesium phosphate fertilizer, 10-15 parts of potassium chloride, 10-15 parts of concentrated sulfuric acid, 3-10 parts of mineral potassium fulvate, 2-4 parts of trace elements and 1-2 parts of diethylaminoethanol caproate.
The content of nitrogen in the urea is more than or equal to 46 percent.
The content of H2SO4 in the concentrated sulfuric acid is more than or equal to 98 percent.
The method comprises the following operation steps:
1) preparing urea sulfate: adding 20-30 parts of urea with a nitrogen content of 46%, 5-10 parts of concentrated sulfuric acid with a nitrogen content of 98% and 1 part of water into a preparation tank with a stirrer at the same time, closely paying attention to the temperature change of the preparation tank in the adding process, controlling the reaction temperature at 70-80 ℃ by cooling circulating water, and after 40 minutes, generating a clear urea sulfate solution after the reaction is finished;
2) spraying: uniformly mixing the prepared urea sulfate solution with 5-8 parts of 98% concentrated sulfuric acid in a mixer, and spraying the mixture into a granulator through a nozzle;
3) and (3) granulation: 10-15 parts of powdered diammonium phosphate, 10-15 parts of calcium magnesium phosphate fertilizer, 10-15 parts of potassium chloride, 3-10 parts of mineral potassium fulvate, 2-4 parts of trace elements and 1-2 parts of diethylaminoethanol caproate are poured into the granulator, and a liquid ammonia valve is opened to spray 6 kg of liquid ammonia into the granulator; granulating for 5 minutes at the granulating temperature of 70 ℃, wherein the water content of a granulator port of the granules is 1.5 percent;
4) drying and cooling: drying the granulated material in a dryer by hot air with the temperature of 105 ℃, and cooling and screening the dried material to obtain the urea-based compound fertilizer with the granularity of 1-4 mm.
The invention has the advantages and positive effects that: the compound fertilizer can effectively stimulate the growth and development of plants, and accelerate the rooting, the root cultivation and the root protection of crops; the fertilizer consumption can be reduced, medium trace elements are combined, the utilization rate of the fertilizer is improved, and the effect is enhanced; can directly participate in plant metabolism, improve photosynthesis, increase sugar content, solve the problem of fruit cracking, improve crop quality, and greatly increase yield and income; in addition, the soil loosening property can be improved, the functions of ventilation and water retention are enhanced, the soil can be activated, the balance of water and nutrients of crops is achieved, and the stress resistance capabilities of the crops such as drought resistance, cold resistance, disease resistance and the like are enhanced.
Detailed Description
The present invention is described in detail below:
the mineral potassium fulvate can effectively stimulate the growth and development of plants, and accelerate the rooting, root cultivation and root protection of crops; the fertilizer consumption and the complexing of medium and trace elements can be reduced, the utilization rate of the fertilizer is improved, and the efficiency is improved; can directly participate in plant metabolism, improve photosynthesis, increase sugar content, improve crop quality, and greatly increase yield and income. In addition, active factors of the mineral potassium fulvate can activate soil aggregate structures, break hardening, improve soil looseness, enhance air permeability and water retention functions, activate soil, achieve balance of water and nutrients of crops, enhance stress resistance of the crops such as drought resistance, cold resistance, disease resistance and the like, and reduce application amount of chemicals.
The trace elements are supplemented together, so that the problems that calcium-supplementing fruits are hard, tough and easy to crack are solved, and the magnesium can beautify the bright color of the fruits, improve the sugar degree and the like.
The diethyl aminoethyl hexanoate is a broad-spectrum plant growth regulator. Can improve the contents of chlorophyll, protein and nucleic acid of crops, improve the photosynthesis activity and the carbon-nitrogen metabolism, increase the yield, improve the quality and enhance the resistance of the crops to the adverse circumstances such as drought and low temperature, and is an excellent synergist of fertilizers and bactericides. For beans. The yield increasing effect of leaf vegetables is better.
Through a large number of experiments, the applicant finds that the mineral potassium fulvate, the diethylaminoethanol caproate and the urea-based compound fertilizer are matched for use, so that the side effect of the single use of the mineral potassium fulvate and the diethylaminoethanol caproate can be effectively reduced, and the fertilizer has extremely strong bioactivity after the two additives which are used independently are added in proportion, so that the growth and the propagation of beneficial microorganisms in soil can be promoted, the permeability in the soil is increased, and the growth of plants is healthier.
When the mineral potassium fulvate and the diethylaminoethanol caproate are used simultaneously, the side effect is lower, the quantity of sulfur ions in soil is greatly increased, the biodegradation capacity is further enhanced, the quantity of physical barriers formed by lignification generated around the pathogen-infected point of a plant is almost equal to that of the pathogen-infected point, the pathogen-infected point can be completely resisted, the disease resistance of the plant is enhanced, and the comprehensive effect is better.
Example 1
The invention discloses a urea-based compound fertilizer containing mineral potassium fulvate and trace elements, which comprises the following raw materials in parts by weight: 20 parts of urea, 10 parts of diammonium phosphate, 10 parts of calcium magnesium phosphate fertilizer, 10 parts of potassium chloride, 10 parts of concentrated sulfuric acid, 3 parts of mineral source potassium fulvate, 2 parts of trace elements and 1 part of diethyl aminoethyl hexanoate.
The preparation method comprises the following steps:
1) preparing urea sulfate: respectively and simultaneously adding 20 parts of urea with a nitrogen content of 46%, 5 parts of concentrated sulfuric acid with a nitrogen content of 98% and 1 part of water into a preparation tank with a stirrer, closely paying attention to the change of the temperature of the preparation tank in the adding process, controlling the reaction temperature at 70-80 ℃ by cooling circulating water, and generating a clear urea sulfate solution after the reaction is finished for 40 minutes;
2) spraying: uniformly mixing the prepared urea sulfate solution with 5 parts of 98% concentrated sulfuric acid in a mixer, and spraying the mixture into a granulator through a nozzle;
3) and (3) granulation: 10 parts of powdered diammonium phosphate, 10 parts of calcium magnesium phosphate fertilizer, 10 parts of potassium chloride, 3 parts of mineral potassium fulvate, 2 parts of trace elements and 1 part of diethylaminoethanol caproate are poured into the granulator, and a liquid ammonia valve is opened to spray 5 kg of liquid ammonia into the granulator; granulating for 5 minutes at the granulating temperature of 70 ℃, wherein the water content of a granulator port of the granules is 1.5 percent;
4) drying and cooling: drying the granulated material in a dryer by hot air with the temperature of 105 ℃, and cooling and screening the dried material to obtain the urea-based compound fertilizer with the granularity of 1-4 mm.
Example 2
The invention discloses a urea-based compound fertilizer containing mineral potassium fulvate and trace elements, which comprises the following raw materials in parts by weight: 25 parts of urea, 12 parts of diammonium phosphate, 12 parts of calcium magnesium phosphate fertilizer, 12 parts of potassium chloride, 12 parts of concentrated sulfuric acid, 6 parts of mineral source potassium fulvate, 3 parts of trace elements and 1.5 parts of diethyl aminoethyl hexanoate.
The preparation method comprises the following steps:
1) preparing urea sulfate: respectively and simultaneously adding 25 parts of urea with a nitrogen content of 46%, 6 parts of concentrated sulfuric acid with a nitrogen content of 98% and 1 part of water into a preparation tank with a stirrer, closely paying attention to the change of the temperature of the preparation tank in the adding process, controlling the reaction temperature at 70-80 ℃ by cooling circulating water, and generating a clear urea sulfate solution after the reaction is finished for 40 minutes;
2) spraying: uniformly mixing the prepared urea sulfate solution with 6 parts of 98% concentrated sulfuric acid in a mixer, and spraying the mixture into a granulator through a nozzle;
3) and (3) granulation: 12 parts of powdered diammonium phosphate, 12 parts of calcium magnesium phosphate fertilizer, 12 parts of potassium chloride, 6 parts of mineral potassium fulvate, 3 parts of trace elements and 1.5 parts of diethylaminoethanol caproate are poured into the granulator, and a liquid ammonia valve is opened to spray 5 kg of liquid ammonia into the granulator; granulating for 5 minutes at the granulating temperature of 70 ℃, wherein the water content of a granulator port of the granules is 1.5 percent;
4) drying and cooling: drying the granulated material in a dryer by hot air with the temperature of 105 ℃, and cooling and screening the dried material to obtain the urea-based compound fertilizer with the granularity of 1-4 mm.
Example 3
The invention discloses a urea-based compound fertilizer containing mineral potassium fulvate and trace elements, which comprises the following raw materials in parts by weight: 30 parts of urea, 15 parts of diammonium phosphate, 15 parts of calcium magnesium phosphate fertilizer, 15 parts of potassium chloride, 15 parts of concentrated sulfuric acid, 10 parts of mineral source potassium fulvate, 4 parts of trace elements and 2 parts of diethyl aminoethyl hexanoate.
The preparation method comprises the following steps:
1) preparing urea sulfate: respectively and simultaneously adding 30 parts of urea with a nitrogen content of 46%, 7 parts of concentrated sulfuric acid with a nitrogen content of 98% and 1 part of water into a preparation tank with a stirrer, closely paying attention to the change of the temperature of the preparation tank in the adding process, controlling the reaction temperature at 70-80 ℃ by cooling circulating water, and generating a clear urea sulfate solution after the reaction is finished for 40 minutes;
2) spraying: uniformly mixing the prepared urea sulfate solution with 8 parts of 98% concentrated sulfuric acid in a mixer, and spraying the mixture into a granulator through a nozzle;
3) and (3) granulation: 15 parts of powdered diammonium phosphate, 15 parts of calcium magnesium phosphate fertilizer, 15 parts of potassium chloride, 10 parts of mineral potassium fulvate, 4 parts of trace elements and 2 parts of diethylaminoethanol caproate are poured into the granulator, and a liquid ammonia valve is opened to spray 6 kg of liquid ammonia into the granulator; granulating for 5 minutes at the granulating temperature of 70 ℃, wherein the water content of a granulator port of the granules is 1.5 percent;
4) drying and cooling: drying the granulated material in a dryer by hot air with the temperature of 105 ℃, and cooling and screening the dried material to obtain the urea-based compound fertilizer with the granularity of 1-4 mm.
The technical solutions disclosed in the present invention are only preferred embodiments, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered as the technical solutions disclosed in the present invention and the inventive concepts thereof should be equivalent or modified within the scope of the present invention.
Claims (4)
1. A urea-based compound fertilizer containing mineral potassium fulvate and trace elements is characterized by comprising the following raw materials in parts by weight: 20-30 parts of urea, 10-15 parts of diammonium phosphate, 10-15 parts of calcium magnesium phosphate fertilizer, 10-15 parts of potassium chloride, 10-15 parts of concentrated sulfuric acid, 3-10 parts of mineral potassium fulvate, 2-4 parts of trace elements and 1-2 parts of diethylaminoethanol caproate.
2. The urea-based compound fertilizer containing mineral potassium fulvate and trace elements as claimed in claim 1, wherein the nitrogen content in urea is not less than 46%.
3. The urea-based compound fertilizer containing mineral potassium fulvate and trace elements as claimed in claim 1, wherein the content of H2SO4 in the concentrated sulfuric acid is not less than 98%.
4. The urea-based compound fertilizer containing mineral potassium fulvate and trace elements and the preparation method of the urea-based compound fertilizer are characterized by comprising the following operation steps of:
1) preparing urea sulfate: adding 20-30 parts of urea with a nitrogen content of 46%, 5-10 parts of concentrated sulfuric acid with a nitrogen content of 98% and 1 part of water into a preparation tank with a stirrer at the same time, closely paying attention to the temperature change of the preparation tank in the adding process, controlling the reaction temperature at 70-80 ℃ by cooling circulating water, and after 40 minutes, generating a clear urea sulfate solution after the reaction is finished;
2) spraying: uniformly mixing the prepared urea sulfate solution with 5-8 parts of 98% concentrated sulfuric acid in a mixer, and spraying the mixture into a granulator through a nozzle;
3) and (3) granulation: 10-15 parts of powdered diammonium phosphate, 10-15 parts of calcium magnesium phosphate fertilizer, 10-15 parts of potassium chloride, 3-10 parts of mineral potassium fulvate, 2-4 parts of trace elements and 1-2 parts of diethylaminoethanol caproate are poured into the granulator, and a liquid ammonia valve is opened to spray 6 kg of liquid ammonia into the granulator; granulating for 5 minutes at the granulating temperature of 70 ℃, wherein the water content of a granulator port of the granules is 1.5 percent;
4) drying and cooling: drying the granulated material in a dryer by hot air with the temperature of 105 ℃, and cooling and screening the dried material to obtain the urea-based compound fertilizer with the granularity of 1-4 mm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111426859.5A CN113929534A (en) | 2021-11-28 | 2021-11-28 | Urea-based compound fertilizer containing mineral potassium fulvate and trace elements and preparation method thereof |
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| CN202111426859.5A CN113929534A (en) | 2021-11-28 | 2021-11-28 | Urea-based compound fertilizer containing mineral potassium fulvate and trace elements and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114793784A (en) * | 2022-03-25 | 2022-07-29 | 广西壮族自治区中国科学院广西植物研究所 | Method for re-rooting dragon fruit plants |
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2021
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114793784A (en) * | 2022-03-25 | 2022-07-29 | 广西壮族自治区中国科学院广西植物研究所 | Method for re-rooting dragon fruit plants |
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Application publication date: 20220114 |