CN110903148A - Fulvic acid type compound fertilizer and preparation method and application thereof - Google Patents
Fulvic acid type compound fertilizer and preparation method and application thereof Download PDFInfo
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- CN110903148A CN110903148A CN201911374720.3A CN201911374720A CN110903148A CN 110903148 A CN110903148 A CN 110903148A CN 201911374720 A CN201911374720 A CN 201911374720A CN 110903148 A CN110903148 A CN 110903148A
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- 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
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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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- Life Sciences & Earth Sciences (AREA)
- Pest Control & Pesticides (AREA)
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Abstract
The invention provides a fulvic acid type compound fertilizer which comprises the following components in percentage by weight: 10-40% of fulvic acid, 1-20% of amino acid, 20-60% of inorganic compound fertilizer, 1-20% of anticaking agent and the balance of dispersing agent. The invention provides a fulvic acid type compound water-soluble fertilizer and a granulation process of high-tower spray drying thereof, which can effectively regulate the growth of plants, improve the soil structure and solve the problem of low utilization rate of the traditional chemical fertilizer by matching fulvic acid with other nutrient components required by the plants; through the high tower spray drying process, the problems of more dust, easy caking and the like of the traditional water-soluble fertilizer are solved.
Description
Technical Field
The invention relates to the technical field of plant growth regulation, in particular to a fulvic acid type compound fertilizer and a preparation method and application thereof.
Background
The water soluble fertilizer is a multi-element compound fertilizer which can be completely dissolved in water, and is also a quick-acting fertilizer, the nutrients contained in the fertilizer are easy to be absorbed by crops, and the utilization rate is relatively high. The water-soluble fertilizer can be applied to sprinkling irrigation, drip irrigation, foliar fertilization, soilless culture, seed soaking and root dipping and the like after being dissolved or diluted by water, so that the integration of water and fertilizer is realized, and the effects of saving water, fertilizer and labor are achieved. Compared with the traditional compound fertilizer, the water-soluble fertilizer has the advantages of less dosage, convenient use, low cost, quick crop absorption, high fertilizer homogenization degree, high fertilizer utilization rate and quick fertilizer efficiency, wherein the trace elements exist in a chelated state, and the crops can not have the symptom of nutrient deficiency. The water-soluble fertilizer closely related to the water-fertilizer integration technology plays an important role in the aspects of improving the utilization rate of the fertilizer, saving agricultural water, reducing ecological environment pollution, improving the quality of crops, reducing labor force and the like. The water soluble fertilizer industry will develop rapidly and become a new field for more fertilizer enterprises to compete.
The current situation of the water-soluble fertilizer is that the threshold is low, the production technology is backward, the equipment is simple and crude, the research and development fund and the investment of technical personnel are insufficient, the research and development foundation is weak, and the technical research and development are disjointed from the market demand. The research on the aspects of improving the production process technology, promoting nutrient absorption, improving the concentration of available nutrients, increasing the stability of a system, improving the mixing of different raw materials and the like is insufficient, and the development research and the application of a chelating agent, a surfactant, a novel compound and a functional substance are lacked. At present, most of water-soluble fertilizers are prepared by simply and physically mixing raw materials such as urea, potassium nitrate, water-soluble monoammonium phosphate, water-soluble potassium sulfate and the like, moisture absorption prevention equipment is not provided, an anti-caking technology is not over-closed, and produced fertilizers often have the phenomena of deliquescence, caking, excessive impurities, excessive water insoluble substance content, flatulence and the like, so that the sale and application of the water-soluble fertilizers are seriously influenced.
Disclosure of Invention
In order to solve the defects in the prior art, the invention provides the fulvic acid type composite water-soluble fertilizer and the high-tower spray drying granulation process thereof, through the matching of fulvic acid and other nutrient components required by plants, the plant growth can be effectively regulated, the soil structure is improved, and the problem of low utilization rate of the traditional chemical fertilizer is solved; through the high tower spray drying process, the problems of more dust, easy caking and the like of the traditional water-soluble fertilizer are solved.
Specifically, the invention provides a fulvic acid type compound fertilizer which comprises the following components in percentage by weight: 10-40% of fulvic acid, 1-20% of amino acid, 20-60% of inorganic compound fertilizer, 1-20% of anticaking agent and the balance of dispersing agent.
In another preferred embodiment, the invention provides a fulvic acid type compound fertilizer, which consists of the following components in percentage by weight: 10-40% of fulvic acid, 1-20% of amino acid, 20-60% of inorganic compound fertilizer, 1-20% of anticaking agent and the balance of dispersing agent.
In another preferred embodiment, the invention provides a fulvic acid type compound fertilizer, which comprises the following components in percentage by weight: 20% of fulvic acid, 10% of amino acid, 40% of inorganic compound fertilizer, 5% of anticaking agent and the balance of dispersing agent.
Preferably, the inorganic compound fertilizer comprises a nitrogen fertilizer, a phosphate fertilizer, a potassium fertilizer, an iron fertilizer, a boron fertilizer, a manganese fertilizer, a copper fertilizer, a zinc fertilizer and a molybdenum fertilizer.
Preferably, the inorganic compound fertilizer is selected from one or more of urea, ammonium sulfate, monoammonium phosphate, potassium nitrate, monopotassium phosphate, calcium superphosphate, boric acid, manganese sulfate and ammonium molybdate.
Preferably, the amino acid is selected from one or more of alanine, arginine, aspartic acid, glutamic acid, cysteine, glycine, histidine, lysine, phenylalanine, tryptophan, serine and methionine.
Preferably, the anticaking agent is selected from one or more of white carbon black, polyurethane, tricalcium phosphate and microcrystalline cellulose.
Preferably, the dispersant is selected from one or more of sodium lignosulfonate, calcium lignosulfonate, naphthalene sulfonate and polycarboxylate.
The invention also provides a preparation method of the fulvic acid type compound fertilizer, which comprises the following steps:
(1) weighing raw materials for preparing the fulvic acid type compound fertilizer according to the proportion of each component;
(2) mixing the raw materials uniformly, and adding the mixture into water;
(3) heating in a reaction kettle, stirring and shearing to form slurry;
(4) and (3) pumping the slurry into the top of a high tower by using a high-pressure pump for spray drying, and taking the slurry out of the tower to obtain the compound fertilizer particles.
Preferably, the solid content of the solid mixture obtained by mixing the raw materials in the step (2) is 30-40%.
Preferably, the temperature of the hot air is maintained at 150 ℃ during the spray drying in step (4).
Preferably, the temperature of the cold air at the outlet in the step (4) is 60-70 ℃.
Preferably, the compound fertilizer granules discharged from the tower in the step (4) are water-soluble.
Preferably, the compound fertilizer granules discharged from the tower in the step (4) are spherical.
Preferably, the compound fertilizer particles discharged from the tower in the step (4) are 50-200 meshes.
The invention also provides application of the fulvic acid type compound fertilizer in plant growth regulation.
Preferably, the fulvic acid type compound fertilizer is applied to sprinkling irrigation, drip irrigation, foliar fertilization, soilless culture and seed soaking and root dipping.
Preferably, the fulvic acid type compound fertilizer is used for improving the physicochemical properties of soil.
Preferably, the plant growth regulator is used to regulate crop growth.
Fulvic acid is a mixture of natural organic macromolecular compounds. For fertilizers, fulvic acid can be used as a composite material (large, medium and small molecules), a functional material (nitrogen extraction and active phosphorus and potassium promotion), an anti-adversity material (such as a material with the functions of drought resistance, cold resistance, waterlogging resistance, disease and insect resistance) and a complexing material or a chelating material. Because fulvic acid has the characteristics of stimulating and regulating the growth of crops, improving the physical and chemical properties of soil, improving the utilization rate of fertilizer, enhancing the stress resistance of crops and the like, fulvic acid is widely applied to crops such as wheat, corn, cotton and the like and has good effect.
The beneficial effects of the invention are:
the fulvic acid fertilizer used in the invention is an organic microbial inoculum fertilizer with active microorganisms, has the advantages of both biological fertilizer and organic fertilizer, can increase both production and income, improve soil, fertilize soil, improve soil enzyme activity, improve soil microbial community structure, and simultaneously can improve crop quality and reduce diseases.
The spray drying high tower is used for solving the problems that most of the existing water-soluble fertilizers are powdery products, are easy to absorb moisture and agglomerate, have long storage time and generate 'flatulence', and the like, adjusting and perfecting process indexes, and adding medium and trace elements in a chelated state.
According to the invention, fulvic acid, amino acid and a traditional inorganic salt water-soluble fertilizer are compounded, and the compound fertilizer is prepared by a spray drying tower, so that the growth of plants can be regulated, the physical and chemical properties of soil are improved, nutrient substances such as amino acid and other medium and trace elements are provided, the utilization rate of the fertilizer is improved, and the using amount of a chemical fertilizer is greatly reduced. The invention adopts the process design of spray drying high tower granulation, and thoroughly solves the problems of much dust, easy caking and the like of the traditional fertilizer.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention. The examples, in which specific conditions are not specified, were conducted under conventional conditions or conditions recommended by the manufacturer.
Example 1
1. The raw material ratio is as follows: 20% of fulvic acid, 10% of amino acid, 40% of inorganic compound fertilizer, 5% of anticaking agent and the balance of dispersant.
2. Preparation process
Weighing raw materials for preparing the fulvic acid type compound fertilizer according to the proportion of each component; after being uniformly mixed, the raw material solids are added into water to ensure that the solid content is 35 percent, and the raw material solids are heated, fully stirred and sheared in a reaction kettle to ensure that no obvious solid particles exist. And pumping the slurry into the top of a high tower by using a high-pressure pump for spray drying. The temperature of hot air is kept at 150 ℃ and the temperature of outlet cold air is kept at 65 ℃ in the spray drying process. The spherical water-soluble compound fertilizer granules with the granularity of 150 meshes are obtained after the fertilizer is taken out of the tower.
Example 2
1. The raw material ratio is as follows: 10% of fulvic acid, 1% of amino acid, 60% of inorganic compound fertilizer, 1% of anticaking agent and the balance of dispersant.
2. Preparation process
Weighing raw materials for preparing the fulvic acid type compound fertilizer according to the proportion of each component; after being uniformly mixed, the raw material solids are added into water to ensure that the solid content is 30 percent, and the raw material solids are heated, fully stirred and sheared in a reaction kettle to ensure that no obvious solid particles exist. And pumping the slurry into the top of a high tower by using a high-pressure pump for spray drying. The temperature of hot air is kept at 150 ℃ and the temperature of outlet cold air is kept at 60 ℃ in the spray drying process. The spherical water-soluble compound fertilizer granules with 200 meshes are obtained after being taken out of the tower.
Example 3
1. The raw material ratio is as follows: 40% of fulvic acid, 20% of amino acid, 20% of inorganic compound fertilizer, 10% of anticaking agent and the balance of dispersant.
2. Preparation process
Weighing raw materials for preparing the fulvic acid type compound fertilizer according to the proportion of each component; after being uniformly mixed, the raw material solids are added into water to ensure that the solid content is 40 percent, and the raw material solids are heated, fully stirred and sheared in a reaction kettle to ensure that no obvious solid particles exist. And pumping the slurry into the top of a high tower by using a high-pressure pump for spray drying. The temperature of hot air is kept at 150 ℃ and the temperature of outlet cold air is kept at 70 ℃ in the spray drying process. The spherical water-soluble compound fertilizer particles with the particle size of 50 meshes are obtained after the fertilizer is taken out of the tower.
Example 4
1. The raw material ratio is as follows: 30% of fulvic acid, 15% of amino acid, 30% of inorganic compound fertilizer, 20% of anticaking agent and the balance of dispersant.
2. Preparation process
Weighing raw materials for preparing the fulvic acid type compound fertilizer according to the proportion of each component; after being uniformly mixed, the raw material solids are added into water to ensure that the solid content is 36 percent, and the raw material solids are heated, fully stirred and sheared in a reaction kettle to ensure that no obvious solid particles exist. And pumping the slurry into the top of a high tower by using a high-pressure pump for spray drying. The temperature of hot air is kept at 150 ℃ and the temperature of outlet cold air is kept at 65 ℃ in the spray drying process. The spherical water-soluble compound fertilizer granules with 100 meshes are obtained after being taken out of the tower.
Example 5 field test
In order to determine the effects of the fulvic acid compound fertilizer on improving the physicochemical properties of soil and regulating the growth of plants, the spray granulation compound water soluble fertilizer containing fulvic acid (taking the fulvic acid compound fertilizer prepared in example 1 as an example, experimental research is carried out, and the fulvic acid compound fertilizers in other examples have the same experimental effect) is used for spraying on rice. The spraying period is divided into three groups of three cells, each group has three treatment periods, each treatment period has 60 square meters, and the specific operation is as follows:
group A: when the spray granulation fulvic acid type water-soluble compound fertilizer is sprayed, the water adding proportion is 1000 times, and 100g is sprayed.
Group B: spraying conventional fertilizer with water in 1000 times and spraying 100 g.
Group C: and spraying equivalent clear water.
One month after spraying, single-beat and single-harvest are carried out in three districts, and production data are counted, wherein specific results are shown in table 1.
TABLE 1 Effect of three fertilization treatments on Rice yield
As can be seen from Table 1, the average yield per mu of the fulvic acid type compound fertilizer sprayed on the rice in the treatment group A is 685.37kg, the average yield per mu of the conventional fertilizer application in the treatment group B is 610.78kg, and the average yield per mu of the clean water sprayed on the rice in the treatment group C is 602.23 kg. The fertilizer yield is increased by 12.21% compared with the conventional fertilizer application and 13.81% compared with the clear water treatment, and the yield increasing effect of the invention is obvious.
According to the invention, fulvic acid, amino acid and a traditional inorganic salt water-soluble fertilizer are compounded, and the compound fertilizer is prepared by a spray drying tower, so that the growth of plants can be regulated, the physical and chemical properties of soil are improved, nutrient substances such as amino acid and other medium and trace elements are provided, the utilization rate of the fertilizer is improved, and the using amount of a chemical fertilizer is greatly reduced. The invention adopts the process design of spray drying high tower granulation, and thoroughly solves the problems of much dust, easy caking and the like of the traditional fertilizer.
The fulvic acid fertilizer prepared by the invention is an organic microbial inoculum fertilizer with active microorganisms, has the advantages of both biological fertilizer and organic fertilizer, can increase both production and income, improve soil, fertilize soil, improve soil enzyme activity, improve soil microbial community structure, improve crop quality and reduce diseases.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (10)
1. The fulvic acid type compound fertilizer is characterized by comprising the following components in percentage by weight: 10-40% of fulvic acid, 1-20% of amino acid, 20-60% of inorganic compound fertilizer, 1-20% of anticaking agent and the balance of dispersing agent.
2. The fulvic acid type compound fertilizer is characterized by comprising the following components in percentage by weight: 10-40% of fulvic acid, 1-20% of amino acid, 20-60% of inorganic compound fertilizer, 1-20% of anticaking agent and the balance of dispersing agent.
3. The fulvic acid type compound fertilizer is characterized by comprising the following components in percentage by weight: 20% of fulvic acid, 10% of amino acid, 40% of inorganic compound fertilizer, 5% of anticaking agent and the balance of dispersing agent.
4. The fulvic acid type compound fertilizer according to claim 1, wherein the inorganic compound fertilizer comprises a nitrogen fertilizer, a phosphate fertilizer, a potassium fertilizer, an iron fertilizer, a boron fertilizer, a manganese fertilizer, a copper fertilizer, a zinc fertilizer, and a molybdenum fertilizer.
5. The fulvic acid type compound fertilizer according to claim 1, wherein the inorganic compound fertilizer is one or more selected from urea, ammonium sulfate, monoammonium phosphate, potassium nitrate, monopotassium phosphate, calcium superphosphate, boric acid, manganese sulfate and ammonium molybdate.
6. The fulvic acid type compound fertilizer according to claim 1, wherein the amino acid is selected from one or more of alanine, arginine, aspartic acid, glutamic acid, cysteine, glycine, histidine, lysine, phenylalanine, tryptophan, serine, and methionine.
7. The fulvic acid type compound fertilizer according to claim 1, wherein the anticaking agent is selected from one or more of white carbon black, polyurethane, tricalcium phosphate and microcrystalline cellulose.
8. The fulvic acid type compound fertilizer according to claim 1, wherein the dispersant is one or more selected from the group consisting of sodium lignosulfonate, calcium lignosulfonate, naphthalenesulfonate and polycarboxylate.
9. A method for producing a fulvic acid type compound fertilizer according to any one of claims 1 to 8, comprising the steps of:
(1) weighing raw materials for preparing the fulvic acid type compound fertilizer according to the proportion of each component;
(2) mixing the raw materials uniformly, and adding the mixture into water;
(3) heating in a reaction kettle, stirring and shearing to form slurry;
(4) and (3) pumping the slurry into the top of a high tower by using a high-pressure pump for spray drying, and taking the slurry out of the tower to obtain the compound fertilizer particles.
10. Use of a fulvic acid type compound fertilizer according to any one of claims 1 to 8 for regulating plant growth.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911374720.3A CN110903148A (en) | 2019-12-27 | 2019-12-27 | Fulvic acid type compound fertilizer and preparation method and application thereof |
| PCT/CN2019/129757 WO2021128403A1 (en) | 2019-12-27 | 2019-12-30 | Fulvic acid type compound fertilizer, preparation method therefor and application thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911374720.3A CN110903148A (en) | 2019-12-27 | 2019-12-27 | Fulvic acid type compound fertilizer and preparation method and application thereof |
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| CN110903148A true CN110903148A (en) | 2020-03-24 |
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| WO (1) | WO2021128403A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115448791A (en) * | 2022-09-16 | 2022-12-09 | 黑龙江储饲粮农业科技集团有限公司 | Organic biological bacterial fertilizer and preparation method thereof |
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| WO2021128403A1 (en) | 2021-07-01 |
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Application publication date: 20200324 |