CN111285738A - Biological fulvic acid water-soluble fertilizer and preparation method thereof - Google Patents
Biological fulvic acid water-soluble fertilizer and preparation method thereof Download PDFInfo
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
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- 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
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Abstract
The invention relates to a biological fulvic acid water-soluble fertilizer and a preparation method thereof, belonging to the technical field of fertilizers. The biological fulvic acid water-soluble fertilizer comprises the following components: organic waste liquid, sylvite, alkali, acid, urea, amino acid, citric acid, magnesium sulfate, trace element parts, a dispersing agent and water. The biological fulvic acid water-soluble fertilizer provided by the invention utilizes organic matters such as fulvic acid, amino acid and the like which are rich in organic waste liquid to improve soil, so that waste resource recovery and efficient utilization are realized, and trace elements necessary for crop growth are added, so that the disease resistance of roots, stems and leaves of crops can be enhanced, photosynthesis is increased, the activity of enzyme is improved, and the yield and the quality of the crops are further improved; the biological fulvic acid water-soluble fertilizer is prepared according to the dissolution principle and the acid-base neutralization principle, can adapt to the development of water-fertilizer integration in modern agriculture science and technology, greatly improves the content of phosphorus and potassium in the fertilizer, and improves the utilization rate of the fertilizer.
Description
Technical Field
The invention relates to a biological fulvic acid water-soluble fertilizer and a preparation method thereof, belonging to the technical field of fertilizers.
Background
With the development of industrial and agricultural in China and the continuous expansion of production scale, a large amount of high-concentration high-chroma organic waste liquid is generated, which contains rich protein and other organic matters, and also contains more inorganic salts such as N, P, K, Ca, Mg and the like and SO with higher concentration4 2-And the like, belonging to the waste water with great treatment difficulty. Generally, the organic waste liquid has acidic pH value, high COD, BOD, SS and chromaticity, and the pigment contained therein is melanoid and brown pigment, which are mainlyThe components are caramel pigment, phenolic pigment, polysaccharide decomposition product, amino acid condensation product and other pigments, and are difficult to be degraded by microorganisms. If the water is directly discharged, the eutrophication of the water body can be caused, and as a result, the water body is black and smelly and even loses functions, and the environment is seriously influenced. Therefore, how to perform resource treatment on the organic waste liquid is an urgent problem to be solved.
The biological fulvic acid is one kind of artificial humic acid, and is one new resource of non-coal humic acid, and is humic acid preparation produced with industrial and agricultural organic waste and through special biochemical process. The biological fulvic acid is micromolecular humic acid, is a complex composed of a plurality of beneficial substances such as amino acid, polybasic organic acid, enzymes, vitamins and the like, and has the functions of improving soil, enhancing fertilizer efficiency, promoting growth, enhancing stress resistance and improving quality. Compared with mineral humic acid (including mineral fulvic acid), the humic acid has small molecular weight and strong permeability; good water solubility and strong hard water resistance; high active group content, high bioactivity and strong complexing and chelating capacity to metal ions.
Agricultural production cannot avoid the use of pesticides and fertilizers. According to statistics, China has 7% of cultivated land on the earth, but the usage amount of chemical fertilizers and pesticides is 35% of the total amount of the whole world. The average utilization rate of the chemical fertilizer in China is only about 35 percent and is 5 to 10 percent lower than that of developed countries such as the United states, which is one of the reasons for excessive use of the chemical fertilizer. As a result of excessive and overuse of chemical fertilizers and pesticides, a series of problems of serious soil acidification and hardening, underground water pollution, air pollution, excessive pesticide residue of agricultural products and the like occur. In addition, water resources in China are short, the utilization rate of the fertilizer is low, the use of the liquid fertilizer can adopt a water-fertilizer integration technology, the utilization rate of the fertilizer is improved by 50%, the fertilizer is saved by more than 30%, and the yield of the product is increased obviously.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide the environment-friendly biological fulvic acid water-soluble fertilizer which can improve soil and provide nutrients required by the growth process of plants.
In order to achieve the purpose, the invention adopts the technical scheme that: the biological fulvic acid water-soluble fertilizer comprises the following components: organic waste liquid, sylvite, alkali, acid, urea, amino acid, citric acid, magnesium sulfate, trace element parts, a dispersing agent and water.
As a preferred embodiment of the biological fulvic acid water-soluble fertilizer, the biological fulvic acid water-soluble fertilizer comprises the following components in parts by weight: 120-200 parts of organic waste liquid, 100-200 parts of potassium salt, 40-100 parts of alkali, 30-70 parts of acid, 150-270 parts of urea, 40-60 parts of amino acid, 8-15 parts of citric acid, 8-15 parts of magnesium sulfate, 1-10 parts of trace elements, 3-8 parts of dispersing agent and 250 parts of 220-fold water.
As a preferred embodiment of the biological fulvic acid water-soluble fertilizer, the biological fulvic acid water-soluble fertilizer comprises the following components in parts by weight: 170 parts of organic waste liquid, 150 parts of potassium salt, 80 parts of alkali, 40 parts of acid, 260 parts of urea, 50 parts of amino acid, 10 parts of citric acid, 10 parts of magnesium sulfate, 6 parts of trace elements, 5 parts of dispersing agent and 220 parts of water.
According to the invention, organic matters such as fulvic acid, amino acid and the like which are rich in the organic waste liquid are utilized, so that the waste is recycled, and the purpose of improving soil is achieved; various trace elements required by the plants are added, so that the growth of the plants is promoted, the yield of the plants is higher, and the quality of the plants is better.
The biological fulvic acid water-soluble fertilizer contains chelated microelements, can play a long-acting role, can adopt a fertilizing mode of foliage spraying and external root flushing, and is suitable for various crops.
The biological fulvic acid water-soluble fertilizer is completely water-soluble, has high resistance to hard water, is convenient to dilute, dissolve and use, and is completely suitable for drip irrigation and spray irrigation.
As a preferred embodiment of the biological fulvic acid water-soluble fertilizer, the organic waste liquid is at least one selected from molasses alcohol waste liquid, cassava alcohol waste liquid, vinasse waste liquid and monosodium glutamate waste liquid; the potassium salt is at least one of potassium dihydrogen phosphate and potassium nitrate; the alkali is potassium hydroxide; the acid is selected from at least one of phosphoric acid and acetic acid; the trace elements are selected from at least one of ferrous sulfate, copper sulfate, manganese sulfate, zinc sulfate, boric acid and ammonium molybdate; the dispersing agent is ethylene glycol.
As a preferable embodiment of the biological fulvic acid water-soluble fertilizer, the organic waste liquid is molasses alcohol waste liquid, the potassium salt is potassium dihydrogen phosphate, the alkali is potassium hydroxide, the acid is phosphoric acid, and the trace elements are ferrous sulfate, manganese sulfate, zinc sulfate, copper sulfate, boric acid and ammonium molybdate.
As a preferable embodiment of the biological fulvic acid water-soluble fertilizer, the biological fulvic acid water-soluble fertilizer comprises, by weight, 170 parts of molasses alcohol waste liquor, 80 parts of solid potassium hydroxide (90% industrial-grade potassium hydroxide), 150 parts of monopotassium phosphate, 40 parts of phosphoric acid (85% industrial phosphoric acid), 260 parts of urea (the nitrogen content is more than or equal to 46%), 50 parts of amino acid (liquid), 10 parts of citric acid, 10 parts of magnesium sulfate, 1 part of ferrous sulfate, 1 part of manganese sulfate, 1 part of zinc sulfate, 1 part of copper sulfate, 1 part of boric acid, 1 part of ammonium molybdate, 5 parts of ethylene glycol and 220 parts of water.
The invention also aims to provide a preparation method of the biological fulvic acid water-soluble fertilizer, which comprises the following steps:
(1) weighing the components according to the formula proportion;
(2) alkalization and salt formation reaction: diluting the organic waste liquid with water, adding potassium salt, stirring and dissolving, adding diluted alkaline solution, performing alkalization salt-forming reaction, and controlling the reaction temperature to obtain a mixed solution containing biological potassium fulvate;
(3) and (3) neutralization reaction: adding acid into the step (2) for neutralization, adding urea, and stirring for complex reaction;
(4) mixing and stirring amino acid, citric acid and magnesium sulfate, adding into the step (3), adding a water solution containing trace elements while stirring, and carrying out a chelation complex reaction; adding the dispersing agent, stirring uniformly, curing and finally forming the stable and uniform biological fulvic acid water-soluble fertilizer.
According to the preparation method of the biological fulvic acid water-soluble fertilizer, the biological fulvic acid water-soluble fertilizer is prepared according to the dissolution principle and the acid-base neutralization principle, so that the preparation method can adapt to the development of water-fertilizer integration in modern agriculture science and technology and improve the utilization rate of the fertilizer.
As a preferable embodiment of the preparation method of the present invention, in the step (2), the mass concentration of the organic waste liquid diluted with water is 40% to 60%; the mass concentration of the diluted alkaline solution is 30-60%; the reaction temperature is less than 50 ℃.
The specific operation of the step (2) is as follows: weighing organic waste liquid, putting the organic waste liquid into a reactor A with a stirrer, adding water to dilute the organic waste liquid into a solution with the mass concentration of 40-60% under the stirring state, adding one or two of monopotassium phosphate and potassium nitrate, stirring and dissolving to obtain a mixed solution; weighing a certain weight part of water, putting the water into a reactor B with a stirrer, slowly adding solid potassium hydroxide (90% industrial-grade potassium hydroxide) to prepare a potassium hydroxide solution with the mass concentration of 30-60% for later use; slowly adding the potassium hydroxide solution into the mixed solution to carry out alkalization salt-forming reaction, and controlling the reaction temperature to be below 50 ℃ to obtain the mixed solution containing the biological potassium fulvate.
As a preferred embodiment of the preparation method of the present invention, in the step (3), the time of the neutralization reaction is 20 to 40min, and more preferably, the time of the neutralization reaction is 30 min; the time of the complexation reaction is 2 h.
The specific operation of the step (3) is as follows: and (3) slowly adding phosphoric acid (85% industrial phosphoric acid) or acetic acid (industrial grade) into the mixed solution in the step (2) under the stirring state for neutralization reaction for 30min, and then adding urea (the nitrogen content is more than or equal to 46%) for complex reaction for 2 hours.
As a preferable embodiment of the preparation method of the present invention, in the step (4), the time of the chelate complex reaction is 8 to 12 hours; in the curing process, the mixture is stirred once every 3-5 hours for 30-60 minutes every time, and the curing time is 3 days.
The specific operation of the step (4) is as follows: weighing amino acid (liquid), citric acid and magnesium sulfate into a reactor C, mixing and stirring to obtain a mixed solution, adding the mixed solution obtained in the step (3), and uniformly mixing; weighing trace elements in a reactor D, adding water to dissolve, mixing and stirring to obtain a trace element water solution; under the stirring state, adding the trace element aqueous solution into the mixed solution to carry out chelation and complexation reaction; and (3) reacting for 8-12 hours, adding ethylene glycol, stirring and mixing uniformly, curing for 3 days, stirring once every 3-5 hours for 30-60 minutes each time, and finally forming the stable and uniform biological fulvic acid water-soluble fertilizer.
Compared with the prior art, the invention has the beneficial effects that:
(1) according to the invention, the soil is improved by using organic matters such as fulvic acid, amino acid and the like rich in the organic waste liquid, so that waste resources are recycled and efficiently utilized;
(2) the invention adds the trace elements necessary for the growth of crops, can enhance the disease resistance of roots, stems and leaves of the crops, increase photosynthesis, improve the activity of enzyme and further improve the yield and quality of the crops;
(3) the invention contains chelated microelements, can play a long-acting role, can adopt the fertilization modes of foliage spraying and external root flushing, and is suitable for various crops;
(4) the product of the invention is completely water-soluble, has high resistance to hard water, is convenient to use after being diluted and dissolved, and is completely suitable for drip irrigation and spray irrigation;
(5) the biological fulvic acid water-soluble fertilizer is prepared according to the dissolution principle and the acid-base neutralization principle, can adapt to the development of water-fertilizer integration in modern agriculture science and technology, greatly improves the content of phosphorus and potassium in the fertilizer, improves the utilization rate of the fertilizer, and reduces the production cost.
Detailed Description
To better illustrate the objects, aspects and advantages of the present invention, the present invention will be further described with reference to specific examples.
Example 1
The embodiment of the invention relates to a biological fulvic acid water-soluble fertilizer, which comprises the following components in parts by weight: 170 parts of molasses alcohol waste liquid, 80 parts of solid potassium hydroxide (90% industrial potassium hydroxide), 150 parts of monopotassium phosphate, 40 parts of phosphoric acid (85% industrial phosphoric acid), 260 parts of urea (the nitrogen content is more than or equal to 46%), 50 parts of amino acid (liquid), 10 parts of citric acid, 10 parts of magnesium sulfate, 1 part of ferrous sulfate, 1 part of manganese sulfate, 1 part of zinc sulfate, 1 part of copper sulfate, 1 part of boric acid, 1 part of ammonium molybdate, 5 parts of ethylene glycol and 220 parts of water.
The preparation method of the biological fulvic acid water-soluble fertilizer comprises the following steps:
(1) weighing the components according to the formula proportion;
(2) alkalization and salt formation reaction: putting 170 parts by weight of molasses alcohol waste liquid into a reactor A with a stirrer, adding 120 parts by weight of water to dilute the molasses alcohol waste liquid into a solution with the mass concentration of 58% under the stirring state, adding 150 parts by weight of potassium dihydrogen phosphate, and stirring and dissolving to obtain a mixed solution; weighing 80 parts by weight of water, putting the water into a reactor B with a stirrer, slowly adding 80 parts by weight of solid potassium hydroxide (90% industrial-grade potassium hydroxide), and preparing a potassium hydroxide solution with the mass concentration of 50% for later use; slowly adding a 50% potassium hydroxide solution into the mixed solution to perform alkalization salt-forming reaction, and controlling the reaction temperature to be below 50 ℃ to obtain a mixed solution containing biological potassium fulvate;
(3) and (3) neutralization reaction: slowly adding 40 parts by weight of phosphoric acid (85% industrial phosphoric acid) into the mixed solution obtained in the step (2) under the stirring state for neutralization reaction, wherein the reaction time is 30min, and then adding 260 parts by weight of urea (the nitrogen content is more than or equal to 46%) for complex reaction, wherein the reaction time is 2 hours;
(4) weighing 50 parts by weight of amino acid (liquid), 10 parts by weight of citric acid and 10 parts by weight of magnesium sulfate into a reactor C, mixing and stirring to obtain a mixed solution, adding the mixed solution obtained in the step (3), and uniformly mixing; in a reactor D, weighing 1 part by weight of ferrous sulfate, copper sulfate, manganese sulfate, zinc sulfate, boric acid and ammonium molybdate, adding 20 parts by weight of water for dissolving, mixing and stirring to obtain a trace element aqueous solution, and adding the obtained trace element aqueous solution into the mixed solution under the stirring state for carrying out chelation and complexation reaction; the reaction time is 10 hours, and then 5 parts of glycol are added, stirred and mixed evenly; and then curing is carried out, the mixture is stirred once every 3 hours for 60 minutes every time, and the curing is carried out for 3 days, and finally, the stable and uniform biological fulvic acid water-soluble fertilizer is formed.
Example 2
The embodiment of the invention relates to a biological fulvic acid water-soluble fertilizer, which comprises the following components in parts by weight: 180 parts of molasses alcohol waste liquid, 70 parts of solid potassium hydroxide (90% industrial potassium hydroxide), 140 parts of monopotassium phosphate, 35 parts of phosphoric acid (85% industrial phosphoric acid), 240 parts of urea (the nitrogen content is more than or equal to 46%), 50 parts of amino acid (liquid), 8 parts of citric acid, 8 parts of magnesium sulfate, 0.5 part of ferrous sulfate, 0.5 part of manganese sulfate, 0.5 part of zinc sulfate, 0.5 part of copper sulfate, 0.5 part of boric acid, 0.5 part of ammonium molybdate, 5 parts of ethylene glycol and 250 parts of water.
The preparation method of the biological fulvic acid water-soluble fertilizer comprises the following steps:
(1) weighing the components according to the formula proportion;
(2) alkalization and salt formation reaction: weighing 180 parts by weight of molasses alcohol waste liquid, putting the molasses alcohol waste liquid into a reactor A with a stirrer, adding 130 parts by weight of water to dilute the molasses alcohol waste liquid into a solution with the mass concentration of 58% under the stirring state, adding 140 parts by weight of potassium dihydrogen phosphate, and stirring and dissolving to obtain a mixed solution; weighing 100 parts by weight of water, putting the water into a reactor B with a stirrer, slowly adding 70 parts by weight of solid potassium hydroxide (90% industrial-grade potassium hydroxide), and preparing a potassium hydroxide solution with the mass concentration of 40% for later use; slowly adding a potassium hydroxide solution with the mass concentration of 40% into the mixed solution to carry out alkalization salt-forming reaction, and controlling the reaction temperature to be below 50 ℃ to obtain the mixed solution containing the biological potassium fulvate;
(3) and (3) neutralization reaction: slowly adding 35 parts by weight of phosphoric acid (85% industrial phosphoric acid) into the mixed solution obtained in the step (2) under the stirring state for neutralization reaction for 30min, and then adding 240 parts by weight of urea (the nitrogen content is more than or equal to 46%) for complexation reaction for 2 hours;
(4) weighing 50 parts by weight of amino acid (liquid), 8 parts by weight of citric acid and 8 parts by weight of magnesium sulfate into a reactor C, mixing and stirring to obtain a mixed solution, adding the mixed solution obtained in the step (3), and uniformly mixing; in a reactor D, weighing 0.5 part by weight of ferrous sulfate, copper sulfate, manganese sulfate, zinc sulfate, boric acid and ammonium molybdate, adding 20 parts by weight of water for dissolving, mixing and stirring to obtain a trace element water solution; adding the obtained microelement aqueous solution into the mixed solution under the stirring state to carry out chelating complex reaction; the reaction time is 10 hours, and then 5 parts of glycol are added, stirred and mixed evenly; and then curing is carried out, the mixture is stirred once every 3 hours for 60 minutes every time, and the curing is carried out for 3 days, and finally, the stable and uniform biological fulvic acid water-soluble fertilizer is formed.
Example 3
The embodiment of the invention relates to a biological fulvic acid water-soluble fertilizer, which comprises the following components in parts by weight: 180 parts of molasses alcohol waste liquid, 80 parts of solid potassium hydroxide (90% industrial potassium hydroxide), 140 parts of monopotassium phosphate, 60 parts of potassium nitrate, 40 parts of phosphoric acid (85% industrial phosphoric acid), 160 parts of urea (the nitrogen content is more than or equal to 46%), 50 parts of amino acid (liquid), 8 parts of citric acid, 10 parts of magnesium sulfate, 1 part of ferrous sulfate, 1 part of manganese sulfate, 1 part of zinc sulfate, 1 part of copper sulfate, 3 parts of boric acid, 1 part of ammonium molybdate, 5 parts of ethylene glycol and 250 parts of water.
The preparation method of the biological fulvic acid water-soluble fertilizer comprises the following steps:
(1) weighing the components according to the formula proportion;
(2) alkalization and salt formation reaction: weighing 180 parts by weight of molasses alcohol waste liquid, putting the molasses alcohol waste liquid into a reactor A with a stirrer, adding 130 parts by weight of water to dilute the molasses alcohol waste liquid into a solution with the mass concentration of 58% under the stirring state, adding 140 parts by weight of monopotassium phosphate and 60 parts by weight of potassium nitrate, and stirring and dissolving to obtain a mixed solution; weighing 100 parts by weight of water, putting the water into a reactor B with a stirrer, slowly adding 80 parts by weight of solid potassium hydroxide (90% industrial-grade potassium hydroxide), and preparing a potassium hydroxide solution with the concentration of 45% for later use; slowly adding a 45% potassium hydroxide solution into the mixed solution to perform alkalization salt-forming reaction, and controlling the reaction temperature to be below 50 ℃ to obtain a mixed solution containing biological potassium fulvate;
(3) and (3) neutralization reaction: slowly adding 40 parts by weight of phosphoric acid (85% industrial phosphoric acid) into the mixed solution obtained in the step (2) under the stirring state for neutralization reaction for 30min, and then adding 160 parts by weight of urea (the nitrogen content is more than or equal to 46%) for complexation reaction for 2 hours;
(4) weighing 50 parts by weight of amino acid (liquid), 8 parts by weight of citric acid and 10 parts by weight of magnesium sulfate into a reactor C, mixing and stirring to obtain a mixed solution, adding the mixed solution obtained in the step (3), and uniformly mixing; in a reactor D, weighing 1 part by weight of ferrous sulfate, copper sulfate, manganese sulfate, zinc sulfate and ammonium molybdate and 3 parts by weight of boric acid, adding 20 parts by weight of water for dissolving, mixing and stirring to obtain a trace element aqueous solution; under the stirring state, adding the trace element water solution into the mixed solution to carry out chelation and complexation reaction; the reaction time is 10 hours, and then 5 parts of glycol are added, stirred and mixed evenly; and then curing is carried out, the mixture is stirred once every 3 hours for 60 minutes every time, and the curing is carried out for 3 days, and finally, the stable and uniform biological fulvic acid water-soluble fertilizer is formed.
Example 4
The embodiment of the invention relates to a biological fulvic acid water-soluble fertilizer, which comprises the following components in parts by weight: 120 parts of molasses alcohol waste liquid, 60 parts of monosodium glutamate waste liquid, 80 parts of solid potassium hydroxide (90% industrial-grade potassium hydroxide), 140 parts of monopotassium phosphate, 40 parts of phosphoric acid (85% industrial phosphoric acid), 240 parts of urea (the nitrogen content is more than or equal to 46%), 50 parts of amino acid (liquid), 8 parts of citric acid, 10 parts of magnesium sulfate, 1 part of ferrous sulfate, 1 part of manganese sulfate, 1 part of zinc sulfate, 1 part of copper sulfate, 1 part of boric acid, 1 part of ammonium molybdate, 5 parts of ethylene glycol and 250 parts of water.
The preparation method of the biological fulvic acid water-soluble fertilizer comprises the following steps:
(1) weighing the components according to the formula proportion;
(2) alkalization and salt formation reaction: weighing 120 parts by weight of molasses alcohol waste liquid and 60 parts by weight of monosodium glutamate waste liquid, putting the molasses alcohol waste liquid and the monosodium glutamate waste liquid into a reactor A with a stirrer, adding 130 parts by weight of water to dilute the molasses alcohol waste liquid and the monosodium glutamate waste liquid into a solution with a mass concentration of 58% under a stirring state, adding 140 parts by weight of potassium dihydrogen phosphate, and stirring and dissolving the potassium dihydrogen phosphate to obtain a mixed solution; weighing 100 parts by weight of water, putting the water into a reactor B with a stirrer, slowly adding 80 parts by weight of solid potassium hydroxide (90% industrial-grade potassium hydroxide), and preparing a potassium hydroxide solution with the concentration of 45% for later use; slowly adding a 45% potassium hydroxide solution into the mixed solution to perform alkalization salt-forming reaction, and controlling the reaction temperature to be below 50 ℃ to obtain a mixed solution containing biological potassium fulvate;
(3) and (3) neutralization reaction: slowly adding 40 parts by weight of phosphoric acid (85% industrial phosphoric acid) into the mixed solution obtained in the step (2) under the stirring state for neutralization reaction for 30min, and then adding 240 parts by weight of urea (the nitrogen content is more than or equal to 46%) for complexation reaction for 2 hours;
(4) weighing 50 parts by weight of amino acid (liquid), 8 parts by weight of citric acid and 10 parts by weight of magnesium sulfate into a reactor C, mixing and stirring to obtain a mixed solution, adding the mixed solution obtained in the step (3), and uniformly mixing; weighing 1 part by weight of ferrous sulfate, copper sulfate, manganese sulfate, zinc sulfate, boric acid and ammonium molybdate in the reactor D, adding 20 parts by weight of water for dissolving, mixing and stirring to obtain a trace element aqueous solution; adding the obtained microelement aqueous solution into the mixed solution under the stirring state to carry out chelating complex reaction; the reaction time is 10 hours, and then 5 parts of glycol are added, stirred and mixed evenly; and then curing is carried out, the mixture is stirred once every 3 hours for 60 minutes every time, and the curing is carried out for 3 days, and finally, the stable and uniform biological fulvic acid water-soluble fertilizer is formed.
Example 5
The embodiment of the invention relates to a biological fulvic acid water-soluble fertilizer, which comprises the following components in parts by weight: 100 parts of cassava alcohol waste liquid, 100 parts of vinasse waste liquid, 40 parts of solid potassium hydroxide (90% industrial-grade potassium hydroxide), 50 parts of monopotassium phosphate, 100 parts of potassium nitrate, 30 parts of acetic acid, 240 parts of urea (the nitrogen content is more than or equal to 46%), 40 parts of amino acid (liquid), 8 parts of citric acid, 8 parts of magnesium sulfate, 1 part of ferrous sulfate, 2 parts of manganese sulfate, 1 part of zinc sulfate, 1 part of copper sulfate, 2 parts of boric acid, 3 parts of ammonium molybdate, 3 parts of ethylene glycol and 250 parts of water.
The preparation method of the biological fulvic acid water-soluble fertilizer comprises the following steps:
(1) weighing the components according to the formula proportion;
(2) alkalization and salt formation reaction: weighing 100 parts by weight of cassava alcohol waste liquid and 100 parts by weight of wine tank waste liquid, putting the cassava alcohol waste liquid and the wine tank waste liquid into a reactor A with a stirrer, adding 133 parts by weight of water to dilute the cassava alcohol waste liquid and the wine tank waste liquid into a solution with a mass concentration of 60% under a stirring state, adding 50 parts by weight of potassium dihydrogen phosphate and 100 parts by weight of potassium nitrate, and stirring and dissolving the mixture to obtain a mixed solution; weighing 93 parts by weight of water, putting the water into a reactor B with a stirrer, slowly adding 40 parts by weight of solid potassium hydroxide (90% industrial-grade potassium hydroxide), and preparing a potassium hydroxide solution with the concentration of 30% for later use; slowly adding a 30% potassium hydroxide solution into the mixed solution to perform alkalization salt-forming reaction, and controlling the reaction temperature to be below 50 ℃ to obtain a mixed solution containing biological potassium fulvate;
(3) and (3) neutralization reaction: slowly adding 30 parts by weight of acetic acid into the mixed solution obtained in the step (2) under the stirring state for neutralization reaction for 20min, and then adding 240 parts by weight of urea (the nitrogen content is more than or equal to 46%) for complexation reaction for 2 hours;
(4) weighing 40 parts by weight of amino acid (liquid), 8 parts by weight of citric acid and 8 parts by weight of magnesium sulfate into a reactor C, mixing and stirring to obtain a mixed solution, adding the mixed solution obtained in the step (3), and uniformly mixing; weighing 1 part of ferrous sulfate, 2 parts of manganese sulfate, 1 part of zinc sulfate, 1 part of copper sulfate, 2 parts of boric acid and 3 parts of ammonium molybdate in a reactor D, adding 24 parts by weight of water for dissolving, and mixing and stirring to obtain a trace element aqueous solution; adding the obtained microelement aqueous solution into the mixed solution under the stirring state to carry out chelating complex reaction; the reaction time is 8 hours, and then 3 parts of glycol are added, stirred and mixed evenly; and then curing is carried out, the mixture is stirred once every 3 hours for 30 minutes every time, and the curing is carried out for 3 days, and finally, the stable and uniform biological fulvic acid water-soluble fertilizer is formed.
Experimental example 1
The experimental example is to detect the appearance characteristics of the biological fulvic acid water-soluble fertilizer described in the embodiments 1 to 4 of the invention
The experimental results are as follows: the biological fulvic acid water-soluble fertilizer prepared in examples 1 to 4 was observed to be a tan uniform liquid without precipitates and completely dissolved in water.
Experimental example 2
The experimental example is the detection of technical indexes of the biological fulvic acid water-soluble fertilizer described in the embodiments 1 to 4 of the invention
The experimental method comprises the following steps: the biological fulvic acid water-soluble fertilizers prepared in examples 1 to 4 were respectively tested, and the test results are shown in table 1.
TABLE 1 technical indices of biological fulvic acid water-soluble fertilizer
The experimental results are as follows: as can be seen from Table 1, the technical index detection results of the biological fulvic acid water-soluble fertilizer disclosed by the embodiments 1-4 of the invention all meet the technical index content, wherein the fulvic acid content is more than or equal to 30g/L, the macroelement content is more than or equal to 200g/L, and the content of water-insoluble substances is less than or equal to 50 g/L; diluting the biological fulvic acid water-soluble fertilizer and water according to the proportion of 1:250, wherein the pH value is 5.0-9.0.
Experimental example 3
The experimental example is a fertilizer efficiency test of the biological fulvic acid water-soluble fertilizer described in example 1 of the invention
The experimental method comprises the following steps: selecting cabbage heart as test object, and treating randomly for 3 times with each treatment area of 20m2. Each treatment base fertilizer is the same, and the treatment 1 does not apply additional fertilizer and uses clear water for replacement; treatment 2 was a commercial conventional fertilizer; treatment 3 is the top application of example 1 of the present invention. And 2, and 3, diluting with water by 500-800 times in the growth period, spraying on the leaf surfaces, irrigating roots and spraying for 3-5 times.
The experimental results show that: compared with the conventional fertilizer, the applied biological fulvic acid water-soluble fertilizer has the advantages that the leaf size of the flowering cabbage is increased by 2-3 cm, the weight of a single plant is increased by 10% -13%, the Vc content is improved, the leaf color is dark green, the plant diseases and insect pests are few, and the plant is strong.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the protection scope of the present invention, and although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.
Claims (9)
1. The biological fulvic acid water-soluble fertilizer is characterized by comprising the following components: organic waste liquid, sylvite, alkali, acid, urea, amino acid, citric acid, magnesium sulfate, trace element parts, a dispersing agent and water.
2. The biological fulvic acid water-soluble fertilizer according to claim 1, wherein the biological fulvic acid water-soluble fertilizer comprises the following components in parts by weight: 120-200 parts of organic waste liquid, 100-200 parts of potassium salt, 40-100 parts of alkali, 30-70 parts of acid, 150-270 parts of urea, 40-60 parts of amino acid, 8-15 parts of citric acid, 8-15 parts of magnesium sulfate, 1-10 parts of trace elements, 3-8 parts of dispersing agent and 250 parts of 220-fold water.
3. The biological fulvic acid water-soluble fertilizer according to claim 2, wherein the biological fulvic acid water-soluble fertilizer comprises the following components in parts by weight: 170 parts of organic waste liquid, 150 parts of potassium salt, 80 parts of alkali, 40 parts of acid, 260 parts of urea, 50 parts of amino acid, 10 parts of citric acid, 10 parts of magnesium sulfate, 6 parts of trace elements, 5 parts of dispersing agent and 220 parts of water.
4. The biological fulvic acid water-soluble fertilizer as claimed in any one of claims 1 to 3, wherein the organic waste liquid is at least one selected from molasses alcohol waste liquid, cassava alcohol waste liquid, vinasse waste liquid and monosodium glutamate waste liquid; the potassium salt is at least one of potassium dihydrogen phosphate and potassium nitrate; the alkali is potassium hydroxide; the acid is selected from at least one of phosphoric acid and acetic acid; the trace elements are selected from at least one of ferrous sulfate, copper sulfate, manganese sulfate, zinc sulfate, boric acid and ammonium molybdate; the dispersing agent is ethylene glycol.
5. The biological fulvic acid water-soluble fertilizer according to claim 4, wherein the organic waste liquid is molasses alcohol waste liquid, the potassium salt is potassium dihydrogen phosphate, the base is potassium hydroxide, the acid is phosphoric acid, and the trace elements are ferrous sulfate, manganese sulfate, zinc sulfate, copper sulfate, boric acid and ammonium molybdate.
6. The method for preparing the biological fulvic acid water-soluble fertilizer according to any one of claims 1 to 5, comprising the following steps:
(1) weighing the components according to the formula proportion;
(2) alkalization and salt formation reaction: diluting the organic waste liquid with water, adding potassium salt, stirring and dissolving, adding diluted alkaline solution, performing alkalization salt-forming reaction, and controlling the reaction temperature to obtain a mixed solution containing biological potassium fulvate;
(3) and (3) neutralization reaction: adding acid into the step (2) for neutralization, adding urea, and stirring for complex reaction;
(4) mixing and stirring amino acid, citric acid and magnesium sulfate, adding into the step (3), adding a water solution containing trace elements while stirring, and carrying out a chelation complex reaction; adding the dispersing agent, stirring uniformly, and curing to obtain the biological fulvic acid water-soluble fertilizer.
7. The preparation method according to claim 6, wherein in the step (2), the mass concentration of the organic waste liquid diluted with water is 40% -60%; the mass concentration of the diluted alkaline solution is 30-60%; the reaction temperature is less than 50 ℃.
8. The preparation method according to claim 6, wherein in the step (3), the time for the neutralization reaction is 20-40 min, and the time for the complexation reaction is 2 h.
9. The preparation method according to claim 6, wherein in the step (4), the time of the chelate-complexation reaction is 8-12 h; in the curing process, the mixture is stirred once every 3-5 hours for 30-60 minutes every time, and the curing time is 3 days.
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