CN110698301A - Full-water-soluble drip irrigation type fulvic acid compound fertilizer and preparation method thereof - Google Patents
Full-water-soluble drip irrigation type fulvic acid compound fertilizer and preparation method thereof Download PDFInfo
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Abstract
The invention belongs to a full water-soluble drip irrigation type fulvic acid compound fertilizer and a preparation method thereof; the compound fertilizer consists of nitrogen, phosphorus, potassium, zinc, boron and fulvic acid, wherein the nitrogen is urea; the phosphorus raw material is selected from one of full water-soluble industrial grade monoammonium phosphate and monopotassium phosphate; the potassium element raw material is selected from one of full water-soluble powdery potassium sulfate, potassium chloride and potassium polyphosphate; the zinc element raw material is selected from one of zinc sulfate monohydrate, zinc sulfate heptahydrate, amino acid chelated zinc and humic acid chelated zinc; the boron raw material is selected from one of borax or humic acid chelated boron; the fulvic acid raw material is neutral potassium fulvate. The fertilizer has the advantages of meeting the requirement of full water solubility of the fertilizer, providing macroelement nutrition for crops, promoting the growth of the crops, improving the yield and the quality and improving the soil on the premise of being suitable for drip irrigation equipment.
Description
Technical Field
The invention belongs to the technical field of fertilizers, and particularly relates to a full-water-soluble drip irrigation type fulvic acid compound fertilizer and a preparation method thereof.
Background
In response to the national fertilizer zero-growth policy, the humic acid fertilizer is popular in the market due to good fertilizer efficiency, ecological fertilizer characteristics and the like, and the Chinese farm-Han has the advantages of harvest and no harvest, and is in water; the yield is more and less, namely the fertilizer ", the sentence suggests that the water and the fertilizer are combined to improve the yield, so that the water and the fertilizer are supplied to crops for absorption and utilization in the soil in an optimized combined state. Therefore, the water-soluble fertilizer is the whole trend of the development of the fertilizer at present and in the future, and the humic acid is used as a good additive in the present fertilizer market, and the humic acid and the fertilizer are combined to be prepared into a fertilizer form, so that the maximum utilization of the fertilizer is achieved. At present, the water-soluble humic acid fertilizer comprises a humic acid-containing water-soluble fertilizer and a water-soluble humic acid compound fertilizer, and the humic acid-containing water-soluble fertilizer has more products and simple process and is mostly mixed. As the current advanced fertilizer production process, the high tower has the characteristics of smooth and glossy appearance, high strength, good instant solubility, difficult pulverization and the like, and is accepted by the market, but the high tower fulvic acid compound fertilizer on the current market is few, the full water-soluble fulvic acid compound fertilizer is few and few, and the requirement on residue amount is high, so that the product is not only a gap in the fertilizer market, but also a large trend of the future market of the humic acid fertilizer.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, and provides a full water-soluble drip irrigation type fulvic acid compound fertilizer which can meet the requirements of full water solubility of the fertilizer, is suitable for drip irrigation equipment, can provide macroelement nutrition for crops, can promote the growth of the crops, can promote the nutrient requirements of the crops in a water and fertilizer integrated mode, can regulate the growth during the growth and development of the crops by adding various trace elements, can improve the yield and the quality and can improve the soil, and a preparation method thereof.
The purpose of the invention is realized as follows:
the full water-soluble drip irrigation type humic acid compound fertilizer consists of nitrogen, phosphorus, potassium, zinc, boron and fulvic acid, wherein the effective content weight ratio of the nitrogen, the phosphorus, the potassium, the zinc, the boron and the fulvic acid is as follows: 16-20: 16-20: 16-20: 0.02-0.06: 0.02-0.06: 0.3-0.6, wherein the nitrogen raw material is urea; the phosphorus raw material is selected from one of full water-soluble industrial grade monoammonium phosphate and monopotassium phosphate; the potassium element raw material is selected from one of full water-soluble powdery potassium sulfate, potassium chloride and potassium polyphosphate; the zinc element raw material is selected from one of zinc sulfate monohydrate, zinc sulfate heptahydrate, amino acid chelated zinc and humic acid chelated zinc; the boron raw material is selected from one of borax or humic acid chelated boron; the fulvic acid raw material is neutral fulvic acid potassium.
The full water-soluble drip irrigation type humic acid compound fertilizer consists of nitrogen, phosphorus, potassium, zinc, boron and fulvic acid, wherein the effective content weight ratio of the nitrogen, the phosphorus, the potassium, the zinc, the boron and the fulvic acid is as follows: 18-20: 17-20: 16-20: 0.04-0.06: 0.03-0.06: 0.5-0.6, wherein the nitrogen raw material is urea; the phosphorus raw material is selected from one of full water-soluble industrial grade monoammonium phosphate and monopotassium phosphate; the potassium element raw material is selected from one of full water-soluble powdery potassium sulfate, potassium chloride and potassium polyphosphate; the zinc element raw material is selected from one of zinc sulfate monohydrate, zinc sulfate heptahydrate, amino acid chelated zinc and humic acid chelated zinc; the boron raw material is selected from one of borax or humic acid chelated boron; the fulvic acid raw material is neutral fulvic acid potassium.
The full water-soluble drip irrigation type fulvic acid compound fertilizer is composed of nitrogen, phosphorus, potassium, zinc, boron and fulvic acid, wherein the effective content weight ratio of the nitrogen, the phosphorus, the potassium, the zinc, the boron and the fulvic acid is as follows: 19: 17: 16: 0.05: 0.03: 0.55, the nitrogen raw material is urea; the phosphorus element raw material is full-water-soluble industrial-grade monoammonium phosphate; the potassium element raw material is full water-soluble powdery potassium sulfate; the zinc element raw material is zinc sulfate heptahydrate; the boron raw material is borax; the fulvic acid raw material is neutral fulvic acid potassium.
The full water-soluble drip irrigation type humic acid compound fertilizer consists of nitrogen, phosphorus, potassium, zinc, boron and fulvic acid, wherein the effective content weight ratio of the nitrogen, the phosphorus, the potassium, the zinc, the boron and the fulvic acid is as follows: 20: 20: 17: 0.04: 0.06: 0.6, the nitrogen raw material is urea; the phosphorus element is potassium dihydrogen phosphate; the potassium element raw material is potassium polyphosphate; the raw material of the zinc element is zinc sulfate monohydrate; the boron element raw material is humic acid chelated boron; the fulvic acid raw material is neutral fulvic acid potassium.
A preparation method of a full water-soluble drip irrigation type fulvic acid compound fertilizer comprises the following steps:
step 1: dividing the potassium raw material into two parts, wherein the weight ratio of the potassium raw material of the first part to the potassium raw material of the second part is 9-11: 89-91;
step 2: dividing the phosphorus element raw material into two parts, wherein the weight ratio of the phosphorus element raw material of the first part to the phosphorus element raw material of the second part is 30-35: 65-70;
and step 3: putting a nitrogen element raw material and a first part of potassium element raw material into a melting tank for dissolving and stirring, melting into primary mixed slurry at 120-125 ℃, and making the primary mixed slurry enter a primary mixing tank in an overflow mode;
and 4, step 4: after the primary mixed slurry enters a primary mixing tank, adding a second part of potassium raw materials and a first part of phosphorus raw materials into the primary mixing tank, stirring the raw materials and the primary mixed slurry, dissolving the materials and uniformly stirring to prepare secondary mixed slurry, and then, feeding the secondary mixed slurry into a secondary mixing tank in an overflow mode;
and 5: after the secondary mixed slurry enters a secondary mixing tank, adding a second part of phosphorus element raw material, zinc element raw material, boron element raw material and fulvic acid raw material into the secondary mixing tank, stirring the raw materials and the secondary mixed slurry, and dissolving and uniformly stirring the materials to obtain finished product slurry;
step 6: and (3) enabling the finished product slurry in the step (5) to enter a pulping machine for pulping in an overflow mode, stirring, mixing and pulping at a high speed in the pulping machine, then entering a granulator, spraying and granulating through a granulating nozzle in the granulator, enabling the slurry to fall freely, receiving materials, and packaging products.
Preferably, the temperature of the secondary mixed slurry in the primary mixing tank in the step 4 is 110-115 ℃.
Preferably, the temperature of the finished product slurry in the secondary mixing tank in the step 5 is 105-110 ℃.
Preferably, the dissolving and stirring speed in the step 3 is 140-160 r/min.
Preferably, the stirring speed in the step 4 and the step 5 is 170-220 r/min.
Preferably, the high speed of the refiner means that the speed is 1400-1800 r/min.
The compound fertilizer prepared by the invention contains a plurality of components such as nitrogen element, phosphorus element, potassium element, zinc element, boron element, fulvic acid and the like, wherein the major elements can comprise nitrogen, phosphorus and potassium, the absorption of nitrogen, phosphorus and potassium in the fertilizer by productive crops is large, and the effect on the crops is most obvious by absorbing the major elements. Crops can provide energy for themselves by absorbing nitrogen, phosphorus and potassium elements, so that substances are synthesized, and the yield is improved; the nitrogen element is an important substance for crop protein synthesis, promotes the growth of stems and leaves, and is beneficial to the absorption of plants on zinc, so that the crop quality index is improved; phosphorus is a component of crop cells in a plant body and plays an important role in growth and proliferation, the phosphorus can promote the magnesium absorption of crops in soil, the crops grow vigorously, female flowers are increased, the disease resistance and resistance of the crops are enhanced, and in addition, the excessive application of the phosphorus can prevent the plants from absorbing zinc, so the balance of the content of the phosphorus and the content of zinc is ensured; the potassium element activates enzyme to stimulate the activity of crop growing points in the crop growing process, participates in photosynthetic crops, water balance adjustment and the like, and can promote the synthesis of protein, while nitrogen is an important substance for synthesizing protein, so that the potassium element can improve the utilization rate of the nitrogen element on one hand, and the nitrogen and the potassium are synergistic to improve the utilization rate; the added zinc and boron trace elements are one of the trace elements with larger soil and crop demand, and are easier to be absorbed by crops, wherein the investigation of the soil nutrient content in China for more than 70 years finds that the area of the boron-deficient land reaches 40 percent, and the area of the zinc-deficient land reaches 20 percent; the zinc element is a component of a plurality of enzymes, and can stimulate cell activity, promote the synthesis and transportation of carbohydrates in crops, increase the synthesis of chlorophyll and auxin, promote the absorption of nutrient elements such as nitrogen, phosphorus, potassium and the like of the crops, improve the yield and quality of seeds, and improve the cold, drought, salt, alkali, disease and stress resistance of the crops by enhancing the photosynthesis and respiration of the crops; the boron element has the main functions of promoting reproductive growth, ensuring that the pollen tube can not separate from boron in germination and elongation, directly influencing the development of reproductive organs of crops, and being incapable of being replaced by other elements; the permanent fulvic acid is fully water-soluble, has the minimum molecular weight in humic acid raw materials, has high activity, is easier to act on plant growth and development, promotes the yield and improves the quality, and secondly, the humic acid is an organic chelating agent of trace elements, has a plurality of active groups, is safe and environment-friendly, can form a synergistic effect with the trace elements, can form a promoting effect with added zinc and boron, and improves the utilization rate of the fertilizer. In addition, the raw materials of the invention have the characteristic of full water solubility, the produced product is suitable for drip irrigation equipment, the water and fertilizer integration is achieved in the farming operation, the fertilizer is applied in the form that crops can absorb nutrition conveniently, the working efficiency is improved, the utilization rate of the fertilizer is improved, the national weight-reducing and efficiency-increasing policy is better met, and the green production practice requirement is met.
The fertilization mode of the invention is drip irrigation and sprinkling irrigation, and other fertilization modes can also be suitable. The drip irrigation is that the fertilizer is put into a fertilizing container, mixed with irrigation water and applied to soil along an irrigation pipeline through a drip irrigation port along with the irrigation water; the irrigation is similar to the irrigation, the fertilizer is filled into a fertilization container, is mixed with irrigation water and is applied to soil along an irrigation pipeline through an irrigation nozzle along with the irrigation water, and the difference is that the spray nozzles are different; other fertilization modes are adopted for fertilization according to a conventional mode, such as broadcast fertilization, buried fertilization, furrow fertilization and the like, when the fertilizer is applied as a base fertilizer, the fertilizer is prevented from being in direct contact with seeds and root systems, and meanwhile, the seedling burning phenomenon caused by excessive fertilization is avoided. The invention can be directly applied as base fertilizer in the growth process of crops, the dosage is 25-50 kg/mu, and can also be applied as additional fertilizer in the later period, the dosage is 15-50 kg/mu.
The invention has the advantages that the fertilizer can meet the requirement of full water solubility of the fertilizer, is suitable for drip irrigation equipment, provides macroelement nutrition for crops, promotes the growth of the crops, promotes the requirement of the crops on nutrients in a water and fertilizer integrated mode, and is added with various trace elements to regulate the growth, improve the yield and the quality and improve the soil during the growth and development of the crops.
Detailed Description
The invention relates to a full water-soluble drip irrigation type fulvic acid compound fertilizer and a preparation method thereof, the compound fertilizer consists of nitrogen, phosphorus, potassium, zinc, boron and fulvic acid, and the effective content weight ratio of the nitrogen, the phosphorus, the potassium, the zinc, the boron and the fulvic acid is as follows: 16-20: 16-20: 16-20: 0.02-0.06: 0.02-0.06: 0.3-0.6, wherein the nitrogen raw material is urea; the phosphorus raw material is selected from one of full water-soluble industrial grade monoammonium phosphate and monopotassium phosphate; the potassium element raw material is selected from one of full water-soluble powdery potassium sulfate, potassium chloride and potassium polyphosphate; the zinc element raw material is selected from one of zinc sulfate monohydrate, zinc sulfate heptahydrate, amino acid chelated zinc and humic acid chelated zinc; the boron raw material is selected from one of borax or humic acid chelated boron; the fulvic acid raw material is neutral fulvic acid potassium.
The full water-soluble drip irrigation type fulvic acid compound fertilizer is composed of nitrogen, phosphorus, potassium, zinc, boron and fulvic acid, wherein the effective content weight ratio of the nitrogen, the phosphorus, the potassium, the zinc, the boron and the fulvic acid is as follows: 18-20: 17-20: 16-20: 0.04-0.06: 0.03-0.06: 0.5-0.6, wherein the nitrogen raw material is urea; the phosphorus raw material is selected from one of full water-soluble industrial grade monoammonium phosphate and monopotassium phosphate; the potassium element raw material is selected from one of full water-soluble powdery potassium sulfate, potassium chloride and potassium polyphosphate; the zinc element raw material is selected from one of zinc sulfate monohydrate, zinc sulfate heptahydrate, amino acid chelated zinc and humic acid chelated zinc; the boron raw material is selected from one of borax or humic acid chelated boron; the fulvic acid raw material is neutral fulvic acid potassium.
The full water-soluble drip irrigation type fulvic acid compound fertilizer is composed of nitrogen, phosphorus, potassium, zinc, boron and fulvic acid, wherein the effective content weight ratio of the nitrogen, the phosphorus, the potassium, the zinc, the boron and the fulvic acid is as follows: 19: 17: 16: 0.05: 0.03: 0.55, the nitrogen raw material is urea; the phosphorus element raw material is full-water-soluble industrial-grade monoammonium phosphate; the potassium element raw material is full water-soluble powdery potassium sulfate; the zinc element raw material is zinc sulfate heptahydrate; the boron raw material is borax; the fulvic acid raw material is neutral fulvic acid potassium.
The full water-soluble drip irrigation type humic acid compound fertilizer consists of nitrogen, phosphorus, potassium, zinc, boron and fulvic acid, wherein the effective content weight ratio of the nitrogen, the phosphorus, the potassium, the zinc, the boron and the fulvic acid is as follows: 20: 20: 17: 0.04: 0.06: 0.6, the nitrogen raw material is urea; the phosphorus element is potassium dihydrogen phosphate; the potassium element raw material is potassium polyphosphate; the raw material of the zinc element is zinc sulfate monohydrate; the boron element raw material is humic acid chelated boron; the fulvic acid raw material is neutral fulvic acid potassium.
A preparation method of a full water-soluble drip irrigation type fulvic acid compound fertilizer comprises the following steps:
step 1: dividing the potassium raw material into two parts, wherein the weight ratio of the potassium raw material of the first part to the potassium raw material of the second part is 9-11: 89-91;
step 2: dividing the phosphorus element raw material into two parts, wherein the weight ratio of the phosphorus element raw material of the first part to the phosphorus element raw material of the second part is 30-35: 65-70;
and step 3: putting a nitrogen element raw material and a first part of potassium element raw material into a melting tank for dissolving and stirring, melting into primary mixed slurry at 120-125 ℃, and making the primary mixed slurry enter a primary mixing tank in an overflow mode;
and 4, step 4: after the primary mixed slurry enters a primary mixing tank, adding a second part of potassium raw materials and a first part of phosphorus raw materials into the primary mixing tank, stirring the raw materials and the primary mixed slurry, dissolving the materials and uniformly stirring to prepare secondary mixed slurry, and then, feeding the secondary mixed slurry into a secondary mixing tank in an overflow mode;
and 5: after the secondary mixed slurry enters a secondary mixing tank, adding a second part of phosphorus element raw material, zinc element raw material, boron element raw material and fulvic acid raw material into the secondary mixing tank, stirring the raw materials and the secondary mixed slurry, and dissolving and uniformly stirring the materials to obtain finished product slurry;
step 6: and (3) enabling the finished product slurry in the step (5) to enter a pulping machine for pulping in an overflow mode, stirring, mixing and pulping at a high speed in the pulping machine, then entering a granulator, spraying and granulating through a granulating nozzle in the granulator, enabling the slurry to fall freely, receiving materials, and packaging products.
Preferably, the temperature of the secondary mixed slurry in the primary mixing tank in the step 4 is 110-115 ℃. And 5, controlling the temperature of the finished product slurry in the secondary mixing tank to be 105-110 ℃. And the dissolving and stirring speed in the step 3 is 140-160 r/min. And the stirring speed in the step 4 and the step 5 is 170-220 r/min. The high speed of the pulping machine is 1400-1800 r/min.
The invention carries out granulation by a high tower granulation mode, the product particles have smooth and glossy appearance, have the characteristics of high strength, good instant solubility, difficult pulverization and the like, and overcome the defects that the water-soluble fertilizer produced by the traditional mixing mode is easy to harden and agglomerate and can not be used seriously; in addition, common water-soluble humic acid fertilizers on the market are not produced by a granulation process generally, and especially, the total water-soluble fulvic acid compound fertilizers are fewer, mainly because fulvic acid raw materials are easily dissolved in various solvents, the volume of slurry is directly expanded by 1.5-2 times, so that the risk of overflowing a tank is caused, a granulation nozzle is easily blocked, and high-tower granulation equipment cannot normally run; the phosphorus element raw material is added in batches, so that the viscosity of the slurry is reduced, and the bubble degree of the slurry is minimized by adding neutral fulvic acid before granulation, so that the aim of ensuring the normal operation of equipment is fulfilled; in addition, the invention can effectively reduce the melting point of urea by using the potassium raw material, thereby achieving the purposes of saving energy and quickly dissolving urea. The raw materials of the invention are all water-soluble raw materials, so that the full water solubility of the product is ensured, the high-tower production can be realized, the integration of water and fertilizer is met, the nutrient requirement of plants can be met, and the yield and the quality are improved.
In order to explain the present invention more clearly, the present invention will now be further described with reference to specific examples. Specific examples are as follows:
example one
The full water-soluble drip irrigation type fulvic acid compound fertilizer is composed of nitrogen, phosphorus, potassium, zinc, boron and fulvic acid, wherein the effective content weight ratio of the nitrogen, the phosphorus, the potassium, the zinc, the boron and the fulvic acid is as follows: 16: 16: 16: 0.02: 0.02: 0.3, the nitrogen raw material is urea; the phosphorus element raw material is full-water-soluble industrial-grade monoammonium phosphate; the potassium element raw material is potassium chloride; the zinc element is zinc sulfate monohydrate; the boron element is humic acid chelated boron; the fulvic acid raw material is neutral fulvic acid potassium.
A preparation method of a full water-soluble drip irrigation type fulvic acid compound fertilizer comprises the following steps:
step 1: dividing the potassium raw material into two parts, wherein the weight ratio of the potassium raw material of the first part to the potassium raw material of the second part is 9: 91;
step 2: dividing the phosphorus element raw material into two parts, wherein the weight ratio of the phosphorus element raw material of the first part to the phosphorus element raw material of the second part is 30: 70;
and step 3: putting a nitrogen element raw material and a first part of potassium element raw material into a melting tank for dissolving and stirring, melting into primary mixed slurry at 120 ℃, and making the primary mixed slurry enter a primary mixing tank in an overflow mode;
and 4, step 4: after the primary mixed slurry enters a primary mixing tank, adding a second part of potassium raw materials and a first part of phosphorus raw materials into the primary mixing tank, stirring the raw materials and the primary mixed slurry, dissolving the materials and uniformly stirring to prepare secondary mixed slurry, and then, feeding the secondary mixed slurry into a secondary mixing tank in an overflow mode;
and 5: after the secondary mixed slurry enters a secondary mixing tank, adding a second part of phosphorus element raw material, zinc element raw material, boron element raw material and fulvic acid raw material into the secondary mixing tank, stirring the raw materials and the secondary mixed slurry, and dissolving and uniformly stirring the materials to obtain finished product slurry;
step 6: and (3) enabling the finished product slurry in the step (5) to enter a pulping machine for pulping in an overflow mode, stirring, mixing and pulping at a high speed in the pulping machine, then entering a granulator, spraying and granulating through a granulating nozzle in the granulator, enabling the slurry to fall freely, receiving materials, and packaging products.
Preferably, the temperature of the secondary mixed slurry in the primary mixing tank in the step 4 is 110 ℃. And 5, the temperature of the finished product slurry in the secondary mixing tank in the step 5 is 105 ℃. And the dissolving and stirring speed in the step 3 is 140-160 r/min. And the stirring speed in the step 4 and the step 5 is 170-220 r/min. The high speed of the pulping machine is 1400-1800 r/min.
Example two
The full water-soluble drip irrigation type fulvic acid compound fertilizer is composed of nitrogen, phosphorus, potassium, zinc, boron and fulvic acid, wherein the effective content weight ratio of the nitrogen, the phosphorus, the potassium, the zinc, the boron and the fulvic acid is as follows: 20: 20: 20: 0.06: 0.06: 0.6, the nitrogen raw material is urea; the phosphorus element raw material is potassium dihydrogen phosphate; the potassium element raw material is full water-soluble powdery potassium sulfate; the zinc element raw material is zinc sulfate heptahydrate; the boron raw material is borax; the fulvic acid raw material is neutral fulvic acid potassium.
A preparation method of a full water-soluble drip irrigation type fulvic acid compound fertilizer comprises the following steps:
step 1: dividing the potassium raw material into two parts, wherein the weight ratio of the potassium raw material of the first part to the potassium raw material of the second part is 11: 89;
step 2: dividing the phosphorus element raw material into two parts, wherein the weight ratio of the phosphorus element raw material of the first part to the phosphorus element raw material of the second part is 35: 65;
and step 3: putting a nitrogen element raw material and a first part of potassium element raw material into a melting tank for dissolving and stirring, melting into primary mixed slurry at 125 ℃, and making the primary mixed slurry enter a primary mixing tank in an overflow mode;
and 4, step 4: after the primary mixed slurry enters a primary mixing tank, adding a second part of potassium raw materials and a first part of phosphorus raw materials into the primary mixing tank, stirring the raw materials and the primary mixed slurry, dissolving the materials and uniformly stirring to prepare secondary mixed slurry, and then, feeding the secondary mixed slurry into a secondary mixing tank in an overflow mode;
and 5: after the secondary mixed slurry enters a secondary mixing tank, adding a second part of phosphorus element raw material, zinc element raw material, boron element raw material and fulvic acid raw material into the secondary mixing tank, stirring the raw materials and the secondary mixed slurry, and dissolving and uniformly stirring the materials to obtain finished product slurry;
step 6: and (3) enabling the finished product slurry in the step (5) to enter a pulping machine for pulping in an overflow mode, stirring, mixing and pulping at a high speed in the pulping machine, then entering a granulator, spraying and granulating through a granulating nozzle in the granulator, enabling the slurry to fall freely, receiving materials, and packaging products.
Preferably, the temperature of the secondary mixed slurry in the primary mixing tank in the step 4 is 115 ℃. And 5, the temperature of the finished product slurry in the secondary mixing tank in the step 5 is 110 ℃. And the dissolving and stirring speed in the step 3 is 140-160 r/min. And the stirring speed in the step 4 and the step 5 is 170-220 r/min. The high speed of the pulping machine is 1400-1800 r/min.
EXAMPLE III
The full water-soluble drip irrigation type fulvic acid compound fertilizer is composed of nitrogen, phosphorus, potassium, zinc, boron and fulvic acid, wherein the effective content weight ratio of the nitrogen, the phosphorus, the potassium, the zinc, the boron and the fulvic acid is as follows: 18: 18: 18: 0.04: 0.04: 0.45, the nitrogen raw material is urea; the phosphorus element raw material is full-water-soluble industrial-grade monoammonium phosphate; the potassium element raw material is potassium polyphosphate; the zinc element raw material is amino acid chelated zinc; the boron raw material is borax; the fulvic acid raw material is neutral fulvic acid potassium.
A preparation method of a full water-soluble drip irrigation type fulvic acid compound fertilizer comprises the following steps:
step 1: dividing the potassium raw material into two parts, wherein the weight ratio of the potassium raw material of the first part to the potassium raw material of the second part is 10: 90;
step 2: dividing the phosphorus element raw material into two parts, wherein the weight ratio of the phosphorus element raw material of the first part to the phosphorus element raw material of the second part is 32.5: 67.5;
and step 3: putting a nitrogen element raw material and a first part of potassium element raw material into a melting tank for dissolving and stirring, melting into primary mixed slurry at 120-125 ℃, and making the primary mixed slurry enter a primary mixing tank in an overflow mode;
and 4, step 4: after the primary mixed slurry enters a primary mixing tank, adding a second part of potassium raw materials and a first part of phosphorus raw materials into the primary mixing tank, stirring the raw materials and the primary mixed slurry, dissolving the materials and uniformly stirring to prepare secondary mixed slurry, and then, feeding the secondary mixed slurry into a secondary mixing tank in an overflow mode;
and 5: after the secondary mixed slurry enters a secondary mixing tank, adding a second part of phosphorus element raw material, zinc element raw material, boron element raw material and fulvic acid raw material into the secondary mixing tank, stirring the raw materials and the secondary mixed slurry, and dissolving and uniformly stirring the materials to obtain finished product slurry;
step 6: and (3) enabling the finished product slurry in the step (5) to enter a pulping machine for pulping in an overflow mode, stirring, mixing and pulping at a high speed in the pulping machine, then entering a granulator, spraying and granulating through a granulating nozzle in the granulator, enabling the slurry to fall freely, receiving materials, and packaging products.
Preferably, the temperature of the secondary mixed slurry in the primary mixing tank in the step 4 is 112.5 ℃. And the temperature of the finished product slurry in the secondary mixing tank in the step 5 is 107.5 ℃. And the dissolving and stirring speed in the step 3 is 140-160 r/min. And the stirring speed in the step 4 and the step 5 is 170-220 r/min. The high speed of the pulping machine is 1400-1800 r/min.
Example four
The full water-soluble drip irrigation type fulvic acid compound fertilizer is composed of nitrogen, phosphorus, potassium, zinc, boron and fulvic acid, wherein the effective content weight ratio of the nitrogen, the phosphorus, the potassium, the zinc, the boron and the fulvic acid is as follows: 18: 17: 16: 0.04: 0.03: 0.5, the nitrogen raw material is urea; the phosphorus element raw material is full-water-soluble industrial-grade monoammonium phosphate; the potassium element raw material is full water-soluble powdery potassium sulfate; the zinc element raw material is humic acid chelated zinc; the boron element raw material is humic acid chelated boron; the fulvic acid raw material is neutral fulvic acid potassium.
A preparation method of a full water-soluble drip irrigation type fulvic acid compound fertilizer comprises the following steps:
step 1: dividing the potassium raw material into two parts, wherein the weight ratio of the potassium raw material of the first part to the potassium raw material of the second part is 11: 89;
step 2: dividing the phosphorus element raw material into two parts, wherein the weight ratio of the phosphorus element raw material of the first part to the phosphorus element raw material of the second part is 30: 70;
and step 3: putting a nitrogen element raw material and a first part of potassium element raw material into a melting tank for dissolving and stirring, melting into primary mixed slurry at 121 ℃, and making the primary mixed slurry enter a primary mixing tank in an overflow mode;
and 4, step 4: after the primary mixed slurry enters a primary mixing tank, adding a second part of potassium raw materials and a first part of phosphorus raw materials into the primary mixing tank, stirring the raw materials and the primary mixed slurry, dissolving the materials and uniformly stirring to prepare secondary mixed slurry, and then, feeding the secondary mixed slurry into a secondary mixing tank in an overflow mode;
and 5: after the secondary mixed slurry enters a secondary mixing tank, adding a second part of phosphorus element raw material, zinc element raw material, boron element raw material and fulvic acid raw material into the secondary mixing tank, stirring the raw materials and the secondary mixed slurry, and dissolving and uniformly stirring the materials to obtain finished product slurry;
step 6: and (3) enabling the finished product slurry in the step (5) to enter a pulping machine for pulping in an overflow mode, stirring, mixing and pulping at a high speed in the pulping machine, then entering a granulator, spraying and granulating through a granulating nozzle in the granulator, enabling the slurry to fall freely, receiving materials, and packaging products.
Preferably, the temperature of the secondary mixed slurry in the primary mixing tank in the step 4 is 114 ℃. And 5, the temperature of the finished product slurry in the secondary mixing tank in the step 5 is 108 ℃. And the dissolving and stirring speed in the step 3 is 140-160 r/min. And the stirring speed in the step 4 and the step 5 is 170-220 r/min. The high speed of the pulping machine is 1400-1800 r/min.
EXAMPLE five
The full water-soluble drip irrigation type fulvic acid compound fertilizer is composed of nitrogen, phosphorus, potassium, zinc, boron and fulvic acid, wherein the effective content weight ratio of the nitrogen, the phosphorus, the potassium, the zinc, the boron and the fulvic acid is as follows: 20: 20: 20: 0.06: 0.06: 0.6, the nitrogen raw material is urea; the phosphorus element raw material is potassium dihydrogen phosphate; the potassium element is potassium chloride; the raw material of the zinc element is zinc sulfate monohydrate; the boron raw material is borax; the fulvic acid raw material is neutral fulvic acid potassium.
A preparation method of a full water-soluble drip irrigation type fulvic acid compound fertilizer comprises the following steps:
step 1: dividing the potassium raw material into two parts, wherein the weight ratio of the potassium raw material of the first part to the potassium raw material of the second part is 9: 91;
step 2: dividing the phosphorus element raw material into two parts, wherein the weight ratio of the phosphorus element raw material of the first part to the phosphorus element raw material of the second part is 35: 65;
and step 3: putting a nitrogen element raw material and a first part of potassium element raw material into a melting tank for dissolving and stirring, melting into primary mixed slurry at 124 ℃, and making the primary mixed slurry enter a primary mixing tank in an overflow mode;
and 4, step 4: after the primary mixed slurry enters a primary mixing tank, adding a second part of potassium raw materials and a first part of phosphorus raw materials into the primary mixing tank, stirring the raw materials and the primary mixed slurry, dissolving the materials and uniformly stirring to prepare secondary mixed slurry, and then, feeding the secondary mixed slurry into a secondary mixing tank in an overflow mode;
and 5: after the secondary mixed slurry enters a secondary mixing tank, adding a second part of phosphorus element raw material, zinc element raw material, boron element raw material and fulvic acid raw material into the secondary mixing tank, stirring the raw materials and the secondary mixed slurry, and dissolving and uniformly stirring the materials to obtain finished product slurry;
step 6: and (3) enabling the finished product slurry in the step (5) to enter a pulping machine for pulping in an overflow mode, stirring, mixing and pulping at a high speed in the pulping machine, then entering a granulator, spraying and granulating through a granulating nozzle in the granulator, enabling the slurry to fall freely, receiving materials, and packaging products.
Preferably, the temperature of the secondary mixed slurry in the primary mixing tank in the step 4 is 112 ℃. And 5, the temperature of the finished product slurry in the secondary mixing tank in the step 5 is 108 ℃. And the dissolving and stirring speed in the step 3 is 140-160 r/min. And the stirring speed in the step 4 and the step 5 is 170-220 r/min. The high speed of the pulping machine is 1400-1800 r/min.
EXAMPLE six
The full water-soluble drip irrigation type fulvic acid compound fertilizer is composed of nitrogen, phosphorus, potassium, zinc, boron and fulvic acid, wherein the effective content weight ratio of the nitrogen, the phosphorus, the potassium, the zinc, the boron and the fulvic acid is as follows: 19: 18.5: 18: 0.05: 0.045: 0.55, the nitrogen raw material is urea; the phosphorus element raw material is potassium dihydrogen phosphate; the potassium element raw material is full water-soluble powdery potassium sulfate; the zinc element raw material is amino acid chelated zinc; the boron raw material is borax; the fulvic acid raw material is neutral fulvic acid potassium.
A preparation method of a full water-soluble drip irrigation type fulvic acid compound fertilizer comprises the following steps:
step 1: dividing the potassium raw material into two parts, wherein the weight ratio of the potassium raw material of the first part to the potassium raw material of the second part is 10: 90;
step 2: dividing the phosphorus element raw material into two parts, wherein the weight ratio of the phosphorus element raw material of the first part to the phosphorus element raw material of the second part is 30: 70;
and step 3: putting a nitrogen element raw material and a first part of potassium element raw material into a melting tank for dissolving and stirring, melting into primary mixed slurry at 120 ℃, and making the primary mixed slurry enter a primary mixing tank in an overflow mode;
and 4, step 4: after the primary mixed slurry enters a primary mixing tank, adding a second part of potassium raw materials and a first part of phosphorus raw materials into the primary mixing tank, stirring the raw materials and the primary mixed slurry, dissolving the materials and uniformly stirring to prepare secondary mixed slurry, and then, feeding the secondary mixed slurry into a secondary mixing tank in an overflow mode;
and 5: after the secondary mixed slurry enters a secondary mixing tank, adding a second part of phosphorus element raw material, zinc element raw material, boron element raw material and fulvic acid raw material into the secondary mixing tank, stirring the raw materials and the secondary mixed slurry, and dissolving and uniformly stirring the materials to obtain finished product slurry;
step 6: and (3) enabling the finished product slurry in the step (5) to enter a pulping machine for pulping in an overflow mode, stirring, mixing and pulping at a high speed in the pulping machine, then entering a granulator, spraying and granulating through a granulating nozzle in the granulator, enabling the slurry to fall freely, receiving materials, and packaging products.
Preferably, the temperature of the secondary mixed slurry in the primary mixing tank in the step 4 is 110 ℃. And 5, the temperature of the finished product slurry in the secondary mixing tank in the step 5 is 105 ℃. And the dissolving and stirring speed in the step 3 is 140-160 r/min. And the stirring speed in the step 4 and the step 5 is 170-220 r/min. The high speed of the pulping machine is 1400-1800 r/min.
EXAMPLE seven
The full water-soluble drip irrigation type fulvic acid compound fertilizer is composed of nitrogen, phosphorus, potassium, zinc, boron and fulvic acid, wherein the effective content weight ratio of the nitrogen, the phosphorus, the potassium, the zinc, the boron and the fulvic acid is as follows: 19: 17: 16: 0.05: 0.03: 0.55, the nitrogen raw material is urea; the phosphorus element raw material is full-water-soluble industrial-grade monoammonium phosphate; the potassium element raw material is full water-soluble powdery potassium sulfate; the zinc element raw material is zinc sulfate heptahydrate; the boron raw material is borax; the fulvic acid raw material is neutral fulvic acid potassium.
A preparation method of a full water-soluble drip irrigation type fulvic acid compound fertilizer comprises the following steps:
step 1: dividing the potassium raw material into two parts, wherein the weight ratio of the potassium raw material of the first part to the potassium raw material of the second part is 11: 89;
step 2: dividing the phosphorus element raw material into two parts, wherein the weight ratio of the phosphorus element raw material of the first part to the phosphorus element raw material of the second part is 32: 68;
and step 3: putting a nitrogen element raw material and a first part of potassium element raw material into a melting tank for dissolving and stirring, melting into primary mixed slurry at the temperature of 123 ℃, and enabling the primary mixed slurry to enter a primary mixing tank in an overflow mode;
and 4, step 4: after the primary mixed slurry enters a primary mixing tank, adding a second part of potassium raw materials and a first part of phosphorus raw materials into the primary mixing tank, stirring the raw materials and the primary mixed slurry, dissolving the materials and uniformly stirring to prepare secondary mixed slurry, and then, feeding the secondary mixed slurry into a secondary mixing tank in an overflow mode;
and 5: after the secondary mixed slurry enters a secondary mixing tank, adding a second part of phosphorus element raw material, zinc element raw material, boron element raw material and fulvic acid raw material into the secondary mixing tank, stirring the raw materials and the secondary mixed slurry, and dissolving and uniformly stirring the materials to obtain finished product slurry;
step 6: and (3) enabling the finished product slurry in the step (5) to enter a pulping machine for pulping in an overflow mode, stirring, mixing and pulping at a high speed in the pulping machine, then entering a granulator, spraying and granulating through a granulating nozzle in the granulator, enabling the slurry to fall freely, receiving materials, and packaging products.
Preferably, the temperature of the secondary mixed slurry in the primary mixing tank in the step 4 is 110 ℃. And 5, the temperature of the finished product slurry in the secondary mixing tank in the step 5 is 105 ℃. And the dissolving and stirring speed in the step 3 is 140-160 r/min. And the stirring speed in the step 4 and the step 5 is 170-220 r/min. The high speed of the pulping machine is 1400-1800 r/min.
Example eight
The full water-soluble drip irrigation type humic acid compound fertilizer consists of nitrogen, phosphorus, potassium, zinc, boron and fulvic acid, wherein the effective content weight ratio of the nitrogen, the phosphorus, the potassium, the zinc, the boron and the fulvic acid is as follows: 20: 20: 17: 0.04: 0.06: 0.6, the nitrogen raw material is urea; the phosphorus element is potassium dihydrogen phosphate; the potassium element raw material is potassium polyphosphate; the raw material of the zinc element is zinc sulfate monohydrate; the boron element raw material is humic acid chelated boron; the fulvic acid raw material is neutral fulvic acid potassium.
A preparation method of a full water-soluble drip irrigation type fulvic acid compound fertilizer comprises the following steps:
step 1: dividing the potassium raw material into two parts, wherein the weight ratio of the potassium raw material of the first part to the potassium raw material of the second part is 9: 91;
step 2: dividing the phosphorus element raw material into two parts, wherein the weight ratio of the phosphorus element raw material of the first part to the phosphorus element raw material of the second part is 34: 66;
and step 3: putting a nitrogen element raw material and a first part of potassium element raw material into a melting tank for dissolving and stirring, melting into primary mixed slurry at the temperature of 123 ℃, and enabling the primary mixed slurry to enter a primary mixing tank in an overflow mode;
and 4, step 4: after the primary mixed slurry enters a primary mixing tank, adding a second part of potassium raw materials and a first part of phosphorus raw materials into the primary mixing tank, stirring the raw materials and the primary mixed slurry, dissolving the materials and uniformly stirring to prepare secondary mixed slurry, and then, feeding the secondary mixed slurry into a secondary mixing tank in an overflow mode;
and 5: after the secondary mixed slurry enters a secondary mixing tank, adding a second part of phosphorus element raw material, zinc element raw material, boron element raw material and fulvic acid raw material into the secondary mixing tank, stirring the raw materials and the secondary mixed slurry, and dissolving and uniformly stirring the materials to obtain finished product slurry;
step 6: and (3) enabling the finished product slurry in the step (5) to enter a pulping machine for pulping in an overflow mode, stirring, mixing and pulping at a high speed in the pulping machine, then entering a granulator, spraying and granulating through a granulating nozzle in the granulator, enabling the slurry to fall freely, receiving materials, and packaging products.
Preferably, the temperature of the secondary mixed slurry in the primary mixing tank in the step 4 is 112 ℃. And 5, the temperature of the finished product slurry in the secondary mixing tank in the step 5 is 108 ℃. And the dissolving and stirring speed in the step 3 is 140-160 r/min. And the stirring speed in the step 4 and the step 5 is 170-220 r/min. The high speed of the pulping machine is 1400-1800 r/min.
The above detailed description is only specific to possible embodiments of the present invention, and they are not intended to limit the scope of the present invention, and equivalent embodiments, modifications, and alterations without departing from the technical spirit of the present invention should be included in the scope of the present invention.
Test example 1
Randomly selecting the fourth embodiment for testing, wherein the neutral potassium fulvate is added in the step 5, the foaming phenomenon occurs but is not severe, the volume expansion of slurry is about 50%, the yield is 64% after the material is received in the step 6, and the particle size of the compound fertilizer is required to be 2.2-4.2 mm;
similarly, the test is carried out in the fourth embodiment, the fully water-soluble industrial-grade monoammonium phosphate is not divided into two parts, and the fully water-soluble industrial-grade monoammonium phosphate and the neutral potassium fulvate are added in step 4 at one time, so that the foaming phenomenon is severe, the volume of the slurry expands by about 2 times, the slurry has high viscosity, the overflow groove phenomenon occurs, and the production cannot be realized.
Experimental example 2
Randomly selecting the seventh embodiment for testing, wherein after the neutral potassium fulvate is added in the step 5, a foaming phenomenon occurs, but the foaming phenomenon is not severe, the volume expansion of slurry is about 50%, after the material is received in the step 6, the detection yield is 66%, and the particle size of the compound fertilizer is required to be 2.2-4.2 mm;
the test was also conducted in example seven, where the fully water-soluble technical grade monoammonium phosphate was divided into two portions as specified in this example, the two portions of fully water-soluble technical grade monoammonium phosphate were added in batches as in the example, neutral potassium fulvate was added in step 4, and a second portion of the phosphorus, zinc and boron sources was added in step 5; when the neutral potassium fulvate is added in the step 4, the slurry is thick and the volume expansion is nearly 1.5 times, the operation is carried out at a high liquid level, and the risk of groove overflow is caused; after the material is collected in the step 6, the detection result shows that the yield is 55%, and the granules below the granulation tower are flat and have more broken granules. And when the high tower granulation runs for about 26 minutes, the granulation nozzle is blocked, and the production cannot be continuously carried out.
Experimental example 3
Test 1: nitrogen element, phosphorus element and potassium element are mixed according to the weight ratio: 18: 18: 18, 294 parts of urea, 409 parts of fully water-soluble industrial grade monoammonium phosphate and 360 parts of fully water-soluble powdery potassium sulfate. Planting a two-leaf and one-heart Shanghai green in a pot special for a 3 kg type pot plant, wherein the variety of the Shanghai green is divided into a purple leaf Shanghai green and a green leaf Shanghai green, planting 5 pots respectively, and performing fertilizer dissolution on the seedlings for one week and the seedlings for one week before harvest according to the standards of 2 g/plant/time and 1 g/plant/time, wherein the water-fertilizer ratio is as follows: 100:1, and respectively applying the fertilizer along with the water flushing application mode for two times.
Test 2: nitrogen element, phosphorus element, potassium element and humic acid are mixed according to the weight ratio: 18: 18: 18: 0.3, 294 parts by weight of urea, 409 parts by weight of fully water-soluble industrial grade monoammonium phosphate, 360 parts by weight of fully water-soluble powdery potassium sulfate and 5 parts by weight of neutral potassium fulvate are prepared in actual operation. Planting a two-leaf and one-heart Shanghai green in a pot special for a 3 kg type pot plant, wherein the variety of the Shanghai green is divided into a purple leaf Shanghai green and a green leaf Shanghai green, planting 5 pots respectively, and performing fertilizer dissolution on the seedlings for one week and the seedlings for one week before harvest according to the standards of 2 g/plant/time and 1 g/plant/time, wherein the water-fertilizer ratio is as follows: 100:1, and respectively applying the fertilizer along with the water flushing application mode for two times.
Test 3: nitrogen element, phosphorus element, potassium element, zinc element, boron element and humic acid are mixed according to the weight ratio: 18: 18: 18: 0.06:0.03:0.3, and in actual operation, 294 parts by weight of urea, 409 parts by weight of fully water-soluble industrial grade monoammonium phosphate, 360 parts by weight of fully water-soluble powdery potassium sulfate, 2 parts by weight of zinc sulfate monohydrate, 3 parts by weight of borax and 5 parts by weight of neutral potassium fulvate are prepared. Planting a two-leaf and one-heart Shanghai green in a pot special for a 3 kg type pot plant, wherein the variety of the Shanghai green is divided into a purple leaf Shanghai green and a green leaf Shanghai green, planting 5 pots respectively, and performing fertilizer dissolution on the seedlings for one week and the seedlings for one week before harvest according to the standards of 2 g/plant/time and 1 g/plant/time, wherein the water-fertilizer ratio is as follows: 100:1, and respectively applying the fertilizer along with the water flushing application mode for two times.
Test 4: nitrogen element, phosphorus element, potassium element and humic acid are mixed according to the weight ratio: 18: 18: 18: 0.3, 294 parts of urea, 409 parts of full water-soluble industrial grade monoammonium phosphate, 360 parts of full water-soluble powdery potassium sulfate and 5 parts of potassium humate in actual operation. Planting a two-leaf and one-heart Shanghai green in a pot special for a 3 kg type pot plant, wherein the variety of the Shanghai green is divided into a purple leaf Shanghai green and a green leaf Shanghai green, planting 5 pots respectively, and performing fertilizer dissolution on the seedlings for one week and the seedlings for one week before harvest according to the standards of 2 g/plant/time and 1 g/plant/time, wherein the water-fertilizer ratio is as follows: 100:1, and respectively applying the fertilizer along with the water flushing application mode for two times.
The Shanghai green harvested by applying the fertilizer in the tests 1-4 of the invention is respectively used as test groups 1-4, and the statistical results are as follows:
TABLE 1 purple leaf Shanghai green potted plant test results
TABLE 2 common Shanghai green potted results
TABLE 3 purple leaf Shanghai green potted plant quality index results
As can be seen from the above table, ① yield in the test group 3 of Shanghai Qinghai, purple leaf, 23.19%, 9.66% and 16.22% compared with the test group 1, the test group 2 and the test group 4, respectively, has the main effects of quick-acting property of the fertilizer, early growth promoting plant height and late yield increase, ② general Shanghai Qinghai test group 3 yield 7.61%, 10.1% and 3.5% compared with the test group 1, the test group 2 and the test group 4, has different fertilizer efficiency on plant height compared with other treatments and is mainly reflected in increased leaf number, nitrate content in the treated plant of the test group 3 in the quality index of the Shanghai, ③ nitrate content is obviously reduced and is greatly reduced compared with the test group 4, and VC content in the plant can be obviously increased and the increase is also larger than the test group 4.
The test results of the two varieties of Shanghai Qing are combined to discover that the test group 3 has outstanding quick-acting performance, can promote the growth of the plant height and the leaf number of the Shanghai Qing and effectively improves the quality index.
The test examples described above are some of the test examples of the present invention, and not all of them. The detailed description of the test examples of the present invention is not intended to limit the scope of the claimed invention, but merely represents selected test examples of the present invention. Based on the test examples in the present invention, all other test examples obtained by one of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
Claims (10)
1. A full water-soluble drip irrigation type fulvic acid compound fertilizer is characterized in that: the compound fertilizer consists of nitrogen, phosphorus, potassium, zinc, boron and fulvic acid, wherein the effective contents of the nitrogen, the phosphorus, the potassium, the zinc, the boron and the fulvic acid are as follows by weight: 16-20: 16-20: 16-20: 0.02-0.06: 0.02-0.06: 0.3-0.6, wherein the nitrogen raw material is urea; the phosphorus raw material is selected from one of full water-soluble industrial grade monoammonium phosphate and monopotassium phosphate; the potassium element raw material is selected from one of full water-soluble powdery potassium sulfate, potassium chloride and potassium polyphosphate; the zinc element raw material is selected from one of zinc sulfate monohydrate, zinc sulfate heptahydrate, amino acid chelated zinc and humic acid chelated zinc; the boron raw material is selected from one of borax or humic acid chelated boron; the fulvic acid raw material is neutral fulvic acid potassium.
2. The full water-soluble drip irrigation type fulvic acid compound fertilizer according to claim 1, characterized in that: the compound fertilizer consists of nitrogen, phosphorus, potassium, zinc, boron and fulvic acid, wherein the effective contents of the nitrogen, the phosphorus, the potassium, the zinc, the boron and the fulvic acid are as follows by weight: 18-20: 17-20: 16-20: 0.04-0.06: 0.03-0.06: 0.5-0.6, wherein the nitrogen raw material is urea; the phosphorus raw material is selected from one of full water-soluble industrial grade monoammonium phosphate and monopotassium phosphate; the potassium element raw material is selected from one of full water-soluble powdery potassium sulfate, potassium chloride and potassium polyphosphate; the zinc element raw material is selected from one of zinc sulfate monohydrate, zinc sulfate heptahydrate, amino acid chelated zinc and humic acid chelated zinc; the boron raw material is selected from one of borax or humic acid chelated boron; the fulvic acid raw material is neutral fulvic acid potassium.
3. The full water-soluble drip irrigation type fulvic acid compound fertilizer according to claim 1, characterized in that: the compound fertilizer consists of nitrogen, phosphorus, potassium, zinc, boron and fulvic acid, wherein the effective contents of the nitrogen, the phosphorus, the potassium, the zinc, the boron and the fulvic acid are as follows by weight: 19: 17: 16: 0.05: 0.03: 0.55, the nitrogen raw material is urea; the phosphorus element raw material is full-water-soluble industrial-grade monoammonium phosphate; the potassium element raw material is full water-soluble powdery potassium sulfate; the zinc element raw material is zinc sulfate heptahydrate; the boron raw material is borax; the fulvic acid raw material is neutral fulvic acid potassium.
4. The full water-soluble drip irrigation type humic acid compound fertilizer of claim 1 is characterized in that: the compound fertilizer consists of nitrogen, phosphorus, potassium, zinc, boron and fulvic acid, wherein the effective contents of the nitrogen, the phosphorus, the potassium, the zinc, the boron and the fulvic acid are as follows by weight: 20: 20: 17: 0.04: 0.06: 0.6, the nitrogen raw material is urea; the phosphorus element is potassium dihydrogen phosphate; the potassium element raw material is potassium polyphosphate; the raw material of the zinc element is zinc sulfate monohydrate; the boron element raw material is humic acid chelated boron; the fulvic acid raw material is neutral fulvic acid potassium.
5. The preparation method of the full water-soluble drip irrigation type fulvic acid compound fertilizer according to claims 1-4, characterized by comprising the following steps: the preparation method comprises the following steps:
step 1: dividing the potassium raw material into two parts, wherein the weight ratio of the potassium raw material of the first part to the potassium raw material of the second part is 9-11: 89-91;
step 2: dividing the phosphorus element raw material into two parts, wherein the weight ratio of the phosphorus element raw material of the first part to the phosphorus element raw material of the second part is 30-35: 65-70;
and step 3: putting a nitrogen element raw material and a first part of potassium element raw material into a melting tank for dissolving and stirring, melting into primary mixed slurry at 120-125 ℃, and making the primary mixed slurry enter a primary mixing tank in an overflow mode;
and 4, step 4: after the primary mixed slurry enters a primary mixing tank, adding a second part of potassium raw materials and a first part of phosphorus raw materials into the primary mixing tank, stirring the raw materials and the primary mixed slurry, dissolving the materials and uniformly stirring to prepare secondary mixed slurry, and then, feeding the secondary mixed slurry into a secondary mixing tank in an overflow mode;
and 5: after the secondary mixed slurry enters a secondary mixing tank, adding a second part of phosphorus element raw material, zinc element raw material, boron element raw material and fulvic acid raw material into the secondary mixing tank, stirring the raw materials and the secondary mixed slurry, and dissolving and uniformly stirring the materials to obtain finished product slurry;
step 6: and (3) enabling the finished product slurry in the step (5) to enter a pulping machine for pulping in an overflow mode, stirring, mixing and pulping at a high speed in the pulping machine, then entering a granulator, spraying and granulating through a granulating nozzle in the granulator, enabling the slurry to fall freely, receiving materials, and packaging products.
6. The preparation method of the full water-soluble drip irrigation type fulvic acid compound fertilizer according to claim 5, characterized by comprising the following steps: and 4, the temperature of the secondary mixed slurry in the primary mixing tank in the step 4 is 110-115 ℃.
7. The preparation method of the full water-soluble drip irrigation type fulvic acid compound fertilizer according to claim 5, characterized by comprising the following steps: and 5, controlling the temperature of the finished product slurry in the secondary mixing tank to be 105-110 ℃.
8. The preparation method of the full water-soluble drip irrigation type fulvic acid compound fertilizer according to claim 5, characterized by comprising the following steps: and the dissolving and stirring speed in the step 3 is 140-160 r/min.
9. The preparation method of the full water-soluble drip irrigation type fulvic acid compound fertilizer according to claim 5, characterized by comprising the following steps: and the stirring speed in the step 4 and the step 5 is 170-220 r/min.
10. The preparation method of the full water-soluble drip irrigation type fulvic acid compound fertilizer according to claim 5, characterized by comprising the following steps: the high speed of the pulping machine is 1400-1800 r/min.
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| CN112409060A (en) * | 2020-10-27 | 2021-02-26 | 广东拉多美化肥有限公司 | High-concentration potassium humate compound fertilizer and preparation method thereof |
| CN113439519A (en) * | 2021-06-24 | 2021-09-28 | 山东万物新农业科技有限公司 | Topdressing fertilizer production and application method for crop topdressing-free fertilizer, pesticide saving by 30%, yield increasing, quality improving and efficiency increasing |
| CN113968760A (en) * | 2021-11-04 | 2022-01-25 | 新疆苏丰生物科技有限公司 | Preparation process of multi-element potassium fulvate sulfate fertilizer |
| CN114181021A (en) * | 2021-12-23 | 2022-03-15 | 安徽辉隆集团五禾生态肥业有限公司 | Potassium fulvate type compound fertilizer containing medium and trace metal elements and preparation process thereof |
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