CN111995463A - Spraying production process of mineral source potassium fulvate compound fertilizer - Google Patents

Spraying production process of mineral source potassium fulvate compound fertilizer Download PDF

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CN111995463A
CN111995463A CN202010860314.4A CN202010860314A CN111995463A CN 111995463 A CN111995463 A CN 111995463A CN 202010860314 A CN202010860314 A CN 202010860314A CN 111995463 A CN111995463 A CN 111995463A
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parts
potassium fulvate
mineral
fertilizer
mineral source
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刘月田
巩俊花
高俊岭
刘伟
韩超
解晓梅
凌东亮
许京有
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Shikefeng Chemical Industry Co ltd
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    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
    • C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05B—PHOSPHATIC FERTILISERS
    • C05B1/00—Superphosphates, i.e. fertilisers produced by reacting rock or bone phosphates with sulfuric or phosphoric acid in such amounts and concentrations as to yield solid products directly
    • C05B1/04—Double-superphosphate; Triple-superphosphate; Other fertilisers based essentially on monocalcium phosphate
    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
    • C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
    • C05G3/40—Mixtures of one or more fertilisers with additives not having a specially fertilising activity for affecting fertiliser dosage or release rate; for affecting solubility
    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
    • C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
    • C05G3/80—Soil conditioners
    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
    • C05G5/00—Fertilisers characterised by their form
    • C05G5/10—Solid or semi-solid fertilisers, e.g. powders
    • C05G5/12—Granules or flakes

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  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Pest Control & Pesticides (AREA)
  • Soil Sciences (AREA)
  • Fertilizers (AREA)

Abstract

The invention discloses a mineral source potassium fulvate compound fertilizer spraying production process, and belongs to the technical field of fertilizers. The method carries out graft modification on the commercially available mineral source potassium fulvate, increases the solubility of the mineral source potassium fulvate by grafting hydrogen bonds and reducing intermolecular electrostatic repulsion, and improves the utilization rate of the fertilizer. Meanwhile, 150 parts of urea, 50-70 parts of monopotassium phosphate, 130 parts of monoammonium phosphate, 40-60 parts of triple superphosphate, 5-10 parts of boric acid, 3-5 parts of ammonium molybdate, 10-15 parts of magnesium sulfate and 1-5 parts of trace elements are added, and porous starch is added as an effective carrier, so that the slow release effect is achieved, the potassium fulvate is assisted to play a role, the utilization rate of the fertilizer is greatly improved, and the waste of the fertilizer and the pollution to soil are reduced. The fertilizer has obvious fertilizer efficiency, simple and easily obtained raw materials, safety and environmental protection, is suitable for practical popularization and use, and has wide market application prospect.

Description

Spraying production process of mineral source potassium fulvate compound fertilizer
Technical Field
The invention belongs to the technical field of fertilizers, and particularly designs a production process of a mineral source potassium fulvate guniting compound fertilizer.
Background
The fulvic acid is a water-soluble small molecular polymer with minimum molecular weight, highest physiological activity and various functional groups in humic acid, and has wide application in agriculture. The mineral fulvic acid has the functions of adjusting the pH value of soil, improving the utilization rate of fertilizer, reducing the stomatal opening degree of leaves, promoting root development, increasing the chlorophyll content, enhancing photosynthesis, improving the activity of various enzymes, enhancing the stress resistance of crops, improving the yield of the crops, improving the product quality and the like. The mineral source fulvic acid is applied to various grain crops such as wheat, corn, rice and the like, and can improve the germination rate of seeds, the drought resistance of the crops and the yield. The mineral source fulvic acid is applied to fruits and vegetables such as watermelons, hot peppers, tomatoes and the like, and can promote seed germination, seedling growth is robust, root systems are developed, the disease resistance of crops is enhanced, and the fruit quality is improved. The mineral fulvic acid is applied to fruit trees, can improve the water utilization rate of the fruit trees, reduce the occurrence of root diseases of the fruit trees, improve the sugar content and Vc content of the fruits, increase the quality of single fruits, improve the yield and prevent and treat apple anthracnose. The mineral source fulvic acid is also a soil conditioner, can increase the content of nitrogen, phosphorus, potassium and organic matters in soil, doubles the quantity of beneficial organisms in the soil, obviously improves the utilization rate of trace elements in the soil, obviously reduces the harm of harmful substances to crops, obviously improves the soil hardening and air permeability, improves the soil moisture preservation performance, and can improve the utilization rate of fertilizer when being matched with chemical fertilizer for application.
The mineral fulvic acid is a biological stimulator and a soil conditioner with wide application range, and can be applied to grain crops, vegetables and fruits. The mineral fulvic acid is mainly extracted from lignite formed in millions of years, contains rich hydroxyl, carboxyl, phenolic hydroxyl, methoxyl and other functional groups, contains 60-70 mineral elements required by soil and rich organic matters, and is essence for forming animal and plant remains. The mineral fulvic acid has the effects of improving soil, adjusting the pH value of the soil, improving the nutrient utilization rate, promoting root growth and the like. However, the existing mineral potassium fulvate fertilizer has the problem of low utilization rate, which causes great waste of resources.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides an efficient mineral source potassium fulvate compound fertilizer which can continuously and efficiently release nutrient substances of mineral source potassium fulvate, promote crops to absorb and utilize, effectively improve the soil structure and adjust the soil environment, and is particularly suitable for being applied to vegetables and fruits.
In order to achieve the technical purpose, the technical problems to be solved by the invention are as follows:
a mineral source potassium fulvate compound fertilizer guniting production process is prepared by the following steps:
1) preparing modified mineral source potassium fulvate: dissolving mineral potassium fulvate in quintupled weight of absolute ethyl alcohol, adding 0.5 wt% of tween 80, and stirring at constant temperature of 40 ℃ for 30min to obtain dispersion A; weighing beta-cyclodextrin with half mass of potassium fulvate, and dissolving in 40 times of 50 ℃ distilled water under stirring to obtain solution B; slowly adding the solution B into the dispersion liquid A in a stirring state within 30min, wherein the volume ratio of the solution A to the solution B is 4:1, and then standing for 20h at 0-4 ℃ to obtain the aqueous dispersion liquid A;
2) preparing a starch carrier: weighing corn starch, preparing starch milk with solid content of 7% -19% in a mixed solvent of deionized water and ethanol with a volume ratio of 13: 1-19: 1, heating the starch milk to 75 ℃ under stirring for gelatinization for 30-120 min, drying, cooling to room temperature, and refrigerating for 2-6 days at 4 ℃ to obtain a starch carrier;
3) weighing: 100-150 parts of urea, 50-70 parts of monopotassium phosphate, 100-130 parts of monoammonium phosphate, 40-60 parts of triple superphosphate, 5-10 parts of boric acid, 3-5 parts of ammonium molybdate, 10-15 parts of magnesium sulfate and 1-5 parts of trace elements are respectively crushed and then sieved by a 400-mesh sieve, and the materials are uniformly mixed to obtain powder; and (2) preparing the powder, 130 parts of the modified mineral source potassium humate obtained in the step (1) and 50-80 parts of the starch carrier obtained in the step (2) into gunite slurry, pumping the gunite slurry into a gunite neutralization ground tank, uniformly mixing, transferring the gunite slurry into a granulator, performing gunite granulation, and drying to obtain the mineral source potassium fulvate compound fertilizer. When preparing the guniting material, a proper amount of water is added, so that the guniting material is suitable for guniting granulation, and the using amount of the water has no special requirement.
Preferably, the raw materials comprise 150 parts of urea, 70 parts of monopotassium phosphate, 130 parts of monoammonium phosphate, 60 parts of triple superphosphate, 130 parts of modified mineral potassium humate obtained in the step (1), 80 parts of starch carrier obtained in the step (2), 10 parts of boric acid, 5 parts of ammonium molybdate, 15 parts of magnesium sulfate and 5 parts of trace elements.
Preferably, the mineral source fulvic acid potassium humic acid is more than or equal to 65%, the fulvic acid is more than or equal to 55%, the potassium oxide is more than or equal to 12%, and the pH value is 6-10.
Preferably, the trace elements are amino acid chelated zinc: iron amino acid chelate: amino acid chelated manganese: boron amino acid chelate according to 1: 1-2: 0.6-1.5: 2-3.5 by weight.
The raw materials of the invention are commercially available, wherein the mineral source potassium fulvate is purchased from Shandong Jinan Heishi chemical Co.
Advantageous effects
Firstly, the commercially available mineral potassium fulvate has the problem of low water solubility, and the mineral potassium fulvate is not uniformly dispersed, flocculated and caked in the spraying granulation process due to the low water solubility, so that the final result is the problem of poor fertilizer utilization rate. Aiming at the problem, the invention carries out graft modification on the mineral source potassium fulvate sold in the market, and increases the solubility of the mineral source potassium fulvate by grafting hydrogen bonds and reducing the intermolecular electrostatic repulsion, thereby improving the utilization rate of the fertilizer. Meanwhile, the porous starch is added as an effective carrier, the starch carrier is a biodegradable material and does not pollute the soil environment, the prepared starch carrier is of a porous structure, the mineral potassium fulvate and other nutrient substances can be effectively adsorbed, effective nutrient substances can be continuously provided for crops, the slow release effect is achieved, the potassium fulvate is assisted to play a role, the utilization rate of the fertilizer is greatly improved, and the waste of the fertilizer and the pollution to the soil are reduced. The fertilizer has obvious fertilizer efficiency, simple and easily obtained raw materials, safety and environmental protection, is suitable for practical popularization and use, and has wide market application prospect.
Drawings
FIG. 1 is an SEM picture of starch of example 3 of the present invention, wherein A is a SEM picture of native corn starch, B is an SEM picture of a starch carrier of the present invention, and C is an SEM picture of an internal structure of the starch carrier of the present invention.
Detailed Description
The technical solution of the present invention is further described below with reference to specific embodiments, but is not limited thereto.
Example 1
A mineral source potassium fulvate compound fertilizer guniting production process is prepared by the following steps:
1) preparing modified mineral source potassium fulvate: dissolving mineral potassium fulvate in quintupled weight of absolute ethyl alcohol, adding 0.5 wt% of tween 80, and stirring at constant temperature of 40 ℃ for 30min to obtain dispersion A; weighing beta-cyclodextrin with half mass of potassium fulvate, and dissolving in 40 times of 50 ℃ distilled water under stirring to obtain solution B; slowly adding the solution B into the dispersion liquid A in a stirring state within 30min, wherein the volume ratio of the solution A to the solution B is 4:1, and then standing for 20h at 0 ℃ to obtain the aqueous dispersion liquid A;
2) preparing a starch carrier: weighing corn starch, preparing starch milk with solid content of 7% in a mixed solvent of deionized water and ethanol with a volume ratio of 13:1, heating the starch milk to 75 ℃ under stirring for gelatinization for 30min, drying, cooling to room temperature, and refrigerating for 2d at 4 ℃ to obtain a starch carrier;
3) weighing: 100 parts of urea, 50 parts of monopotassium phosphate, 100 parts of monoammonium phosphate, 40 parts of triple superphosphate, 5 parts of boric acid, 3 parts of ammonium molybdate, 10 parts of magnesium sulfate and 1 part of trace elements are respectively crushed and then sieved by a 400-mesh sieve, and the mixture is uniformly mixed to obtain powder; and (2) preparing the powder, 120 parts of the modified mineral potassium humate obtained in the step (1) and 50 parts of the starch carrier obtained in the step (2) into gunite slurry, pumping the gunite slurry into a gunite neutralizing ground tank, uniformly mixing, transferring the mixture into a granulator, carrying out gunite granulation, and drying to obtain the mineral potassium fulvate compound fertilizer. When preparing the guniting material, a proper amount of water is added, so that the guniting material is suitable for guniting granulation, and the using amount of the water has no special requirement.
The mineral source fulvic acid potassium humic acid is more than or equal to 65 percent, the fulvic acid is more than or equal to 55 percent, the potassium oxide is more than or equal to 12 percent, and the pH is 6-10.
The trace elements are amino acid chelated zinc: iron amino acid chelate: amino acid chelated manganese: boron amino acid chelate according to 1: 1: 0.6: 2 in weight ratio.
The raw materials of the invention are commercially available, wherein the mineral source potassium fulvate is purchased from Shandong Jinan Heishi chemical Co.
Example 2
A mineral source potassium fulvate compound fertilizer guniting production process is prepared by the following steps:
1) preparing modified mineral source potassium fulvate: dissolving mineral potassium fulvate in quintupled weight of absolute ethyl alcohol, adding 0.5 wt% of tween 80, and stirring at constant temperature of 40 ℃ for 30min to obtain dispersion A; weighing beta-cyclodextrin with half mass of potassium fulvate, and dissolving in 40 times of 50 ℃ distilled water under stirring to obtain solution B; slowly adding the solution B into the dispersion liquid A in a stirring state within 30min, wherein the volume ratio of the solution A to the solution B is 4:1, and then standing for 20h at 2 ℃ to obtain the aqueous dispersion liquid A;
2) preparing a starch carrier: weighing corn starch, preparing starch milk with solid content of 13% in a mixed solvent of deionized water and ethanol with a volume ratio of 16:1, heating the starch milk to 75 ℃ under stirring for gelatinization for 90min, drying, cooling to room temperature, and refrigerating for 4d at 4 ℃ to obtain a starch carrier;
3) weighing: 120 parts of urea, 60 parts of monopotassium phosphate, 115 parts of monoammonium phosphate, 50 parts of triple superphosphate, 8 parts of boric acid, 4 parts of ammonium molybdate, 13 parts of magnesium sulfate and 3 parts of trace elements are respectively crushed and then sieved by a 400-mesh sieve, and the mixture is uniformly mixed to obtain powder; and (2) preparing the powder, 125 parts of the modified mineral potassium humate obtained in the step (1) and 65 parts of the starch carrier obtained in the step (2) into gunite slurry, pumping the gunite slurry into a gunite neutralization trough, uniformly mixing, transferring the mixture into a granulator, carrying out gunite granulation, and drying to obtain the mineral potassium fulvate compound fertilizer. When preparing the guniting material, a proper amount of water is added, so that the guniting material is suitable for guniting granulation, and the using amount of the water has no special requirement.
The mineral source fulvic acid potassium humic acid is more than or equal to 65 percent, the fulvic acid is more than or equal to 55 percent, the potassium oxide is more than or equal to 12 percent, and the pH is 6-10.
The trace elements are amino acid chelated zinc: iron amino acid chelate: amino acid chelated manganese: boron amino acid chelate according to 1: 1.5: 1.1: 3 in a weight ratio.
The raw materials of the invention are commercially available, wherein the mineral source potassium fulvate is purchased from Shandong Jinan Heishi chemical Co.
Example 3
A mineral source potassium fulvate compound fertilizer guniting production process is prepared by the following steps:
1) preparing modified mineral source potassium fulvate: dissolving mineral potassium fulvate in quintupled weight of absolute ethyl alcohol, adding 0.5 wt% of tween 80, and stirring at constant temperature of 40 ℃ for 30min to obtain dispersion A; weighing beta-cyclodextrin with half mass of potassium fulvate, and dissolving in 40 times of 50 ℃ distilled water under stirring to obtain solution B; slowly adding the solution B into the dispersion liquid A in a stirring state within 30min, wherein the volume ratio of the solution A to the solution B is 4:1, and then standing for 20h at 4 ℃ to obtain the aqueous dispersion liquid A;
2) preparing a starch carrier: weighing corn starch, preparing starch milk with solid content of 19% in a mixed solvent of deionized water and ethanol with a volume ratio of 19:1, heating the starch milk to 75 ℃ under stirring for gelatinization for 120min, drying, cooling to room temperature, and refrigerating at 4 ℃ for 6d to obtain a starch carrier;
3) weighing: 150 parts of urea, 70 parts of monopotassium phosphate, 130 parts of monoammonium phosphate, 60 parts of triple superphosphate, 10 parts of boric acid, 5 parts of ammonium molybdate, 15 parts of magnesium sulfate and 5 parts of trace elements are respectively crushed and then sieved by a 400-mesh sieve, and the mixture is uniformly mixed to obtain powder; and (3) preparing the powder, 130 parts of the modified mineral potassium humate obtained in the step (1) and 80 parts of the starch carrier obtained in the step (2) into gunite slurry, pumping the gunite slurry into a gunite neutralizing ground tank, uniformly mixing, transferring the mixture into a granulator, carrying out gunite granulation, and drying to obtain the mineral potassium fulvate compound fertilizer. When preparing the guniting material, a proper amount of water is added, so that the guniting material is suitable for guniting granulation, and the using amount of the water has no special requirement.
The mineral source fulvic acid potassium humic acid is more than or equal to 65 percent, the fulvic acid is more than or equal to 55 percent, the potassium oxide is more than or equal to 12 percent, and the pH is 6-10.
The trace elements are amino acid chelated zinc: iron amino acid chelate: amino acid chelated manganese: boron amino acid chelate according to 1: 2: 1.5: 3.5 in weight ratio.
The raw materials of the invention are commercially available, wherein the mineral source potassium fulvate is purchased from Shandong Jinan Heishi chemical Co.
Comparative example 1
A mineral source potassium fulvate compound fertilizer guniting production process is prepared by the following steps:
1) preparing modified mineral source potassium fulvate: dissolving mineral potassium fulvate in quintupled weight of absolute ethyl alcohol, adding 0.5 wt% of tween 80, and stirring at constant temperature of 40 ℃ for 30min to obtain dispersion A; weighing beta-cyclodextrin with half mass of potassium fulvate, and dissolving in 40 times of 50 ℃ distilled water under stirring to obtain solution B; slowly adding the solution B into the dispersion liquid A in a stirring state within 30min, wherein the volume ratio of the solution A to the solution B is 4:1, and then standing for 20h at 4 ℃ to obtain the aqueous dispersion liquid A;
2) weighing: 150 parts of urea, 70 parts of monopotassium phosphate, 130 parts of monoammonium phosphate, 60 parts of triple superphosphate, 10 parts of boric acid, 5 parts of ammonium molybdate, 15 parts of magnesium sulfate and 5 parts of trace elements are respectively crushed and then sieved by a 400-mesh sieve, and the mixture is uniformly mixed to obtain powder; and (2) preparing the powder, 130 parts of the modified mineral potassium humate obtained in the step (1) and 80 parts of corn starch into gunite slurry, pumping the gunite slurry into a gunite neutralizing ground tank, uniformly mixing, transferring the mixture into a granulator, carrying out gunite granulation, and drying to obtain the mineral potassium fulvate compound fertilizer. When preparing the guniting material, a proper amount of water is added, so that the guniting material is suitable for guniting granulation, and the using amount of the water has no special requirement.
The mineral source fulvic acid potassium humic acid is more than or equal to 65 percent, the fulvic acid is more than or equal to 55 percent, the potassium oxide is more than or equal to 12 percent, and the pH is 6-10.
The trace elements are amino acid chelated zinc: iron amino acid chelate: amino acid chelated manganese: boron amino acid chelate according to 1: 2: 1.5: 3.5 in weight ratio.
The raw materials of the invention are commercially available, wherein the mineral source potassium fulvate is purchased from Shandong Jinan Heishi chemical Co.
The comparative example was carried out in the same manner as in example 3 except that the natural corn starch was used as it is.
Comparative example 2
A mineral source potassium fulvate compound fertilizer guniting production process is prepared by the following steps:
1) preparing a starch carrier: weighing corn starch, preparing starch milk with solid content of 19% in a mixed solvent of deionized water and ethanol with a volume ratio of 19:1, heating the starch milk to 75 ℃ under stirring for gelatinization for 120min, drying, cooling to room temperature, and refrigerating at 4 ℃ for 6d to obtain a starch carrier;
2) weighing: 150 parts of urea, 70 parts of monopotassium phosphate, 130 parts of monoammonium phosphate, 60 parts of triple superphosphate, 10 parts of boric acid, 5 parts of ammonium molybdate, 15 parts of magnesium sulfate and 5 parts of trace elements are respectively crushed and then sieved by a 400-mesh sieve, and the mixture is uniformly mixed to obtain powder; and (2) preparing the powder, 130 parts of commercially available mineral potassium humate and 80 parts of the starch carrier obtained in the step (1) into gunite slurry, pumping the gunite slurry into a gunite neutralization trough, uniformly mixing, transferring the mixture into a granulator, carrying out gunite granulation, and drying to obtain the mineral potassium fulvate compound fertilizer. When preparing the guniting material, a proper amount of water is added, so that the guniting material is suitable for guniting granulation, and the using amount of the water has no special requirement.
The mineral source fulvic acid potassium humic acid is more than or equal to 65 percent, the fulvic acid is more than or equal to 55 percent, the potassium oxide is more than or equal to 12 percent, and the pH is 6-10.
The trace elements are amino acid chelated zinc: iron amino acid chelate: amino acid chelated manganese: boron amino acid chelate according to 1: 2: 1.5: 3.5 in weight ratio.
The procedure and the raw materials of this comparative example were the same as those of example 3, except that commercially available mineral potassium fulvate was used as it is.
Comparative example 3
A mineral source potassium fulvate compound fertilizer guniting production process is prepared by the following steps:
1) weighing: 150 parts of urea, 70 parts of monopotassium phosphate, 130 parts of monoammonium phosphate, 60 parts of triple superphosphate, 10 parts of boric acid, 5 parts of ammonium molybdate, 15 parts of magnesium sulfate and 5 parts of trace elements are respectively crushed and then sieved by a 400-mesh sieve, and the mixture is uniformly mixed to obtain powder; and then preparing the powder, 130 parts of commercially available mineral potassium humate and 80 parts of corn starch into gunite slurry, pumping the gunite slurry into a gunite neutralizing ground tank, uniformly mixing, transferring the mixture into a granulator, carrying out gunite granulation, and drying to obtain the mineral potassium fulvate compound fertilizer. When preparing the guniting material, a proper amount of water is added, so that the guniting material is suitable for guniting granulation, and the using amount of the water has no special requirement.
The mineral source fulvic acid potassium humic acid is more than or equal to 65 percent, the fulvic acid is more than or equal to 55 percent, the potassium oxide is more than or equal to 12 percent, and the pH is 6-10.
The trace elements are amino acid chelated zinc: iron amino acid chelate: amino acid chelated manganese: boron amino acid chelate according to 1: 2: 1.5: 3.5 in weight ratio.
The comparative example was conducted in the same manner as in example 3 except that commercially available mineral potassium fulvate and natural corn starch were used as they are.
Planting test
The test varieties are: strawberry 'Hongyan'
Test soil: the content of alkaline hydrolysis nitrogen is 58.42 mg/kg-1Organic matter 16.62 mg/kg-1Total nitrogen 0.88 mg/kg-115.19 mg/kg of available phosphorus-1Quick-acting potassium 101.9 mg/kg-1
Fertilizer to be tested: examples 1 to 3 of the present invention and comparative examples 1 to 3 of the present invention, and commercial compound fertilizers were produced by Hubei Yangfeng Fengfeng Fertilizer industry Co., Ltd.
Experiment design: set 6 treatments, 3 repetitions, cell area 20m2Random block permutation. The fertilizing amount is 600kg/hm2. Namely, digging a hole with the depth of 10cm at a position 2-3cm away from the seedling, applying fertilizer into the hole, then covering with mud, and covering with a film after the seedling is drenched. Other field management during strawberry growth was the same.
The strawberry planting method comprises the following steps: and (4) breeding non-toxic strawberry seedlings, planting 300 strawberry seedlings in each cell, planting the strawberry seedlings in 2018 in 9 months, and harvesting in 2019 in 1 month.
Collecting strawberry fruits: 50 uniform-sized, defect-free fruits were harvested from disease-free strawberry plants per plot.
The method for measuring the yield, the quality and the disease incidence of the strawberry fruits comprises the following steps: the fruit yield adopts a weighing method; the VC content is determined by a 2, 6-dichlorophenol indophenol titration method; measuring the protein content by using a Kjeldahl apparatus method; the content of soluble sugar is measured by adopting an anthrone colorimetric method; measuring the acid content in the strawberry fruits by an alkali titration method; the strawberry disease incidence adopts a field investigation method. The results of the experiment are shown in table 1:
TABLE 1 planting test results
Figure BDA0002647845320000071
The strawberry obtained in the embodiment of the invention is superior to the comparative example and the commercial compound fertilizer test group in both yield and quality, and the effectiveness of the invention on the mineral source potassium fulvate and starch carrier treatment process is also demonstrated.
It should be noted that the above-mentioned embodiments are only some of the preferred modes for implementing the invention, and not all of them. Obviously, all other embodiments obtained by persons of ordinary skill in the art based on the above-mentioned embodiments of the present invention without any creative effort shall fall within the protection scope of the present invention.

Claims (4)

1. A mineral source potassium fulvate compound fertilizer guniting production process is characterized by being prepared by the following steps:
1) preparing modified mineral source potassium fulvate: dissolving mineral potassium fulvate in quintupled weight of absolute ethyl alcohol, adding 0.5 wt% of tween 80, and stirring at constant temperature of 40 ℃ for 30min to obtain dispersion A; weighing beta-cyclodextrin with half mass of potassium fulvate, and dissolving in 40 times of 50 ℃ distilled water under stirring to obtain solution B; slowly adding the solution B into the dispersion liquid A in a stirring state within 30min, wherein the volume ratio of the solution A to the solution B is 4:1, and then standing for 20h at 0-4 ℃ to obtain the aqueous dispersion liquid A;
2) preparing a starch carrier: weighing corn starch, preparing starch milk with solid content of 7% -19% in a mixed solvent of deionized water and ethanol with a volume ratio of 13: 1-19: 1, heating the starch milk to 75 ℃ under stirring for gelatinization for 30-120 min, drying, cooling to room temperature, and refrigerating for 2-6 days at 4 ℃ to obtain a starch carrier;
3) weighing: 100-150 parts of urea, 50-70 parts of monopotassium phosphate, 100-130 parts of monoammonium phosphate, 40-60 parts of triple superphosphate, 5-10 parts of boric acid, 3-5 parts of ammonium molybdate, 10-15 parts of magnesium sulfate and 1-5 parts of trace elements are respectively crushed and then sieved by a 400-mesh sieve, and the materials are uniformly mixed to obtain powder; and (2) preparing the powder, 130 parts of the modified mineral source potassium humate obtained in the step (1) and 50-80 parts of the starch carrier obtained in the step (2) into gunite slurry, pumping the gunite slurry into a gunite neutralization ground tank, uniformly mixing, transferring the gunite slurry into a granulator, performing gunite granulation, and drying to obtain the mineral source potassium fulvate compound fertilizer.
2. The spraying production process of the mineral potassium fulvate compound fertilizer according to claim 1, characterized in that in step (3), 150 parts of urea, 70 parts of monopotassium phosphate, 130 parts of monoammonium phosphate, 60 parts of triple superphosphate, 130 parts of modified mineral potassium humate obtained in step (1), 80 parts of starch carrier obtained in step (2), 10 parts of boric acid, 5 parts of ammonium molybdate, 15 parts of magnesium sulfate and 5 parts of trace elements.
3. The spraying production process of the mineral potassium fulvate compound fertilizer as claimed in claim 1, wherein the mineral potassium fulvate humic acid is greater than or equal to 65%, the fulvic acid is greater than or equal to 55%, the potassium oxide is greater than or equal to 12%, and the pH is 6-10.
4. The mineral potassium fulvate compound fertilizer guniting production process as claimed in claim 1, wherein the trace elements are amino acid chelated zinc: iron amino acid chelate: amino acid chelated manganese: boron amino acid chelate according to 1: 1-2: 0.6-1.5: 2-3.5 by weight.
CN202010860314.4A 2020-08-25 2020-08-25 Spraying production process of mineral source potassium fulvate compound fertilizer Pending CN111995463A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113185358A (en) * 2021-06-08 2021-07-30 深圳市绿色农业生物科技有限公司 Mineral source potassium fulvate composite biological nutrition water-retaining agent
CN113429976A (en) * 2021-06-22 2021-09-24 湖南四环环保科技有限公司 Soil remediation agent and preparation method thereof
CN116621633A (en) * 2023-03-27 2023-08-22 中华全国供销合作总社天津再生资源研究所 Water-retention slow-release fertilizer special for corn and preparation method thereof

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113185358A (en) * 2021-06-08 2021-07-30 深圳市绿色农业生物科技有限公司 Mineral source potassium fulvate composite biological nutrition water-retaining agent
CN113429976A (en) * 2021-06-22 2021-09-24 湖南四环环保科技有限公司 Soil remediation agent and preparation method thereof
CN116621633A (en) * 2023-03-27 2023-08-22 中华全国供销合作总社天津再生资源研究所 Water-retention slow-release fertilizer special for corn and preparation method thereof

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