CN117024224A - Quick-acting paste fertilizer containing medium and trace elements and preparation method of quick-acting paste fertilizer - Google Patents

Quick-acting paste fertilizer containing medium and trace elements and preparation method of quick-acting paste fertilizer Download PDF

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Publication number
CN117024224A
CN117024224A CN202310366795.7A CN202310366795A CN117024224A CN 117024224 A CN117024224 A CN 117024224A CN 202310366795 A CN202310366795 A CN 202310366795A CN 117024224 A CN117024224 A CN 117024224A
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China
Prior art keywords
quick
parts
acting
medium
paste fertilizer
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CN202310366795.7A
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Inventor
谢德龙
刘翠侠
李莹莹
邬斌威
朱远蹠
马航
梅毅
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Kunming University of Science and Technology
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Kunming University of Science and Technology
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Priority to CN202310366795.7A priority Critical patent/CN117024224A/en
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    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
    • C05G5/00—Fertilisers characterised by their form
    • C05G5/10—Solid or semi-solid fertilisers, e.g. powders
    • C05G5/18—Semi-solid fertilisers, e.g. foams or gels
    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05C—NITROGENOUS FERTILISERS
    • C05C3/00—Fertilisers containing other salts of ammonia or ammonia itself, e.g. gas liquor
    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
    • C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity

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

Abstract

The invention discloses a medium trace element quick-acting paste fertilizer which is prepared from the following components in parts by weight: 30-40 parts of potassium source, 35-50 parts of calcium source, 17-30 parts of magnesium source, 1-7 parts of trace elements, 5-15 parts of dispersing agent, 0.2-3 parts of defoaming agent, 1-10 parts of thickening agent and 0.1-1 part of preservative. The invention also discloses a preparation method of the medium and trace element quick-acting paste fertilizer. The invention has the following beneficial effects: the proportion among elements is optimized, the weight is reduced, the efficiency is improved, the requirements of common crops on nitrogen, potassium, calcium, magnesium and various microelements can be met, the cost of packaging and transportation is reduced, and the suspension stability is better kept; quick acting, convenient and quick in the application process.

Description

Quick-acting paste fertilizer containing medium and trace elements and preparation method of quick-acting paste fertilizer
Technical Field
The invention belongs to the technical field of fertilizers, in particular to the technical field of paste fertilizers, and particularly relates to a quick-acting medium-trace element paste fertilizer and a preparation method thereof.
Background
The existing liquid fertilizer comprises a suspension type fertilizer and a clear liquid type fertilizer, wherein the nutrient content of the suspension fertilizer is higher, the production cost is lower, the crop absorption and utilization rate is higher, the nutrition requirement of conventional crops can be met, and the cost expectation of the fertilizers for farmers is met.
The suspended compound fertilizer is characterized in that water-soluble nutrient components exceeding the solubility of the suspended compound fertilizer are suspended in water in the form of micro solid particles by means of the action of suspending agents, and generally have higher viscosity, so that insoluble particulate matters are kept in a suspended state in a liquid phase and do not settle. However, the high-solid content suspension fertilizer has the problems of crystallization, water separation, precipitation and the like in the long-time storage process, so that the bottom content in the fertilizer bottle is higher than the upper content, and the problem is brought to the application of the fertilizer to users.
Pasty fertilizers are forms intermediate between solid and liquid fertilizers, with fluidity increasing with increasing water content. The pasty nutrient content is generally lower than that of similar solid fertilizers but higher than that of corresponding liquid fertilizers, and the pasty nutrient content has the advantages of overcoming the defects of easy moisture absorption and caking, slow dissolution during use, low nutrient content of the liquid fertilizers and easy crystallization and precipitation, and being capable of easily adjusting the nutrient proportion and adding various auxiliary agents.
The Chinese patent application No. CN 110078558A discloses a production method of thixotropic paste compound fertilizer, wherein carboxymethyl cellulose, xanthan gum, bentonite, calcium magnesium phosphate fertilizer powder and sodium pyrophosphate are prepared by preparing a viscous body, putting the viscous body into a double-layer colloid preparation tank, adding hot water and stirring; preparing colloid, dissolving glycerol, propylene glycol, ethylene glycol, sodium benzoate, sodium humate and ethylenediamine tetraacetic acid powder in water, and adding into the viscous body; preparing paste: mixing urea and ammonium dihydrogen phosphate powder, adding into colloid, adding crushed potassium chloride or potassium sulfate powder, and stirring. Although the technical scheme is declared to have the advantages of good stability, difficult precipitation and obvious fertilizer efficiency, the compound fertilizer is a compound fertilizer, lacks medium and trace elements necessary for plant growth, is prepared from components through simple stirring, and has the defects that the synergistic fertilizer efficiency of each component cannot be fully exerted, and unstable precipitation, layering and the like are unavoidable.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a quick-acting paste fertilizer containing medium and trace elements.
The second purpose of the invention is to provide a preparation method of the medium and trace element quick-acting paste fertilizer.
In order to solve the problems, the technical scheme provided by the invention is as follows: a medium trace element quick-acting paste fertilizer is prepared from the following components in parts by weight: 30-40 parts of potassium source, 35-50 parts of calcium source, 17-30 parts of magnesium source, 5-10 parts of trace elements, 5-15 parts of dispersing agent, 0.2-3 parts of defoaming agent, 1-10 parts of thickening agent and 0.1-1 part of preservative.
The potassium source is one or a mixture of more than two of potassium formate, potassium nitrate and potassium sulfate.
The calcium source is one or a mixture of more than two of calcium formate, calcium nitrate, calcium ammonium nitrate and calcium chloride.
The magnesium source is one or a mixture of two of magnesium formate, magnesium sulfate and magnesium nitrate.
The microelements are one or more than two of copper sulfate, disodium copper ethylenediamine tetraacetate, zinc sulfate, disodium zinc ethylenediamine tetraacetate, manganese sulfate, disodium manganese ethylenediamine tetraacetate, ferrous sulfate, disodium ferrous ethylenediamine tetraacetate, boric acid, sodium borate, zinc amino acid, ammonium molybdate and sodium molybdate in any proportion.
The dispersing agent is one or the mixture of more than two of any proportion of alpha-sodium alkenyl sulfonate, fatty alcohol polyoxyethylene ether sulfate (AES), alkylphenol polyoxyethylene ether, lignin sodium sulfonate, sulfate ester salt, hydrophobic group modified carboxylic acid copolymer, fatty alcohol polyoxypropylene polyoxyethylene ether, methyl acrylate dispersing agent, dodecylamine polyoxyethylene ether and 3194 emulsifying dispersing agent.
The defoamer is one or the mixture of more than two of higher alcohol defoamer, polyether modified aqueous defoamer, organosilicon aqueous defoamer and mineral and vegetable oil aqueous defoamer in any proportion.
The preservative is one or a mixture of more than two of sodium dehydroacetate, calcium propionate, sodium benzoate, isothiazolinone, ethyl p-hydroxybenzoate, potassium citrate, sorbic acid or sodium sorbate in any proportion.
The thickener is one or more than two of attapulgite, magnesium aluminum silicate, acacia, xanthan gum, sodium carboxymethyl cellulose, polyvinyl alcohol, hydroxyethyl cellulose, chitin, polyacrylic acid, sodium alginate, sodium lauryl amphoacetate, tallow amine polyoxyethylene ether and fatty alcohol polyoxyethylene ether sulfate (AES) in any proportion.
The preparation method of the medium trace element paste fertilizer comprises the following steps:
(1) Mixing a potassium source, a calcium source, a magnesium source and trace elements according to the proportion, adding a dispersing agent aqueous solution with the mass percent concentration of 1-5%, and stirring at a high speed of 1000-3000RPM to form auxiliary agent-containing slurry;
(2) Opening cooling water of the sanding device, introducing the uniformly dispersed slurry containing the auxiliary agent into the sanding device, and controlling the grinding rotating speed to be 1500-3000RPM to grind for 0.5-3 hours to obtain nano-scale mixed liquid with the particle size of 30-3000 nm;
(3) Adding a defoaming agent, a thickening agent solution and a preservative into the nanoscale mixed solution, and dispersing and stirring at 1000-3000RPM (revolutions per minute) for 20-50 minutes by using a high-speed dispersing machine at normal temperature to obtain the medium trace element quick-acting pasty fertilizer.
Compared with the prior art, the method has the following beneficial effects:
1. the CO carbonylation products of calcium formate, magnesium formate and potassium formate in the industrial tail gas are used as new raw materials of the secondary elements in the suspension fertilizer, and the formate is a micromolecular organic raw material, has high purity and good water solubility, does not contain nitrogen elements, is easy to be absorbed by crops and is beneficial to fruit color conversion, and carbon sources, potassium sources, calcium sources and magnesium sources can be provided for plants; from the source, formate produced by yellow phosphorus tail gas which is rich in CO and is produced by enterprises in industrial production is effectively utilized;
2. the proportion between the traditional fertilization structure and elements is optimized through element synergistic effect, so that the weight loss and synergy can meet the requirements of common crops on nitrogen, potassium, calcium, magnesium and various microelements, and the packaging and transportation cost is reduced;
3. the fertilizer slurry is ground and dispersed to micro-nano level by adopting a sand mill, so that the degree of Oryza curing in the system is reduced in the storage process, and the suspension stability is better kept; quick-acting, convenient and quick in the application process;
4. by adding the macromolecule, the anionic compound dispersing agent and the thickening agent, static stability and steric hindrance stability are formed in a suspension system, so that the viscosity of the system is moderate, and the dispersion and suspension stability of the system are improved;
5. the defoamer, the preservative and the antifreezing agent are added, so that the quality stability of the product in the production and storage processes is improved;
6. the paste fertilizer is a high-concentration fertilizer, and compared with clear liquid and suspension fertilizer, the nutrient content of the paste fertilizer is greatly improved; the method has the advantages that the defects of easy moisture absorption and caking of the solid fertilizer, slow dissolution during use, low nutrient content of the liquid fertilizer and easy crystallization and precipitation are overcome, the nutrient proportion can be easily prepared, and various auxiliary agents can be added.
Detailed Description
The technical scheme of the invention is described in detail through specific embodiments. The following examples are further illustrative of the invention and are not intended to limit the scope of the invention.
Example 1
The preparation method of the medium trace element quick-acting paste fertilizer is characterized by comprising the following components in parts by weight:
(1) Mixing 30 parts of potassium formate, 35 parts of calcium nitrate, 25 parts of magnesium nitrate and 7 parts of trace elements (1 part of disodium zinc ethylenediamine tetraacetate, 2 parts of disodium copper ethylenediamine tetraacetate, 1 part of disodium manganese ethylenediamine tetraacetate, 2 parts of ferrous sulfate and 1 part of ammonium molybdate), adding 5 parts of laurylamine polyoxyethylene ether prepared into 2% by mass fraction concentration of laurylamine polyoxyethylene ether aqueous solution, and dispersing at a high speed at a rotating speed of 1000rp m to form auxiliary agent-containing slurry;
(2) Opening cooling water of a sand mill, pumping the uniformly dispersed slurry containing the auxiliary agent into the sand mill, adjusting the grinding rotating speed to 2000RPM, and grinding for 50 minutes to obtain nano-scale mixed liquid;
(3) And adding 0.2 part of aqueous organic silicon defoamer, 2 parts of sodium carboxymethylcellulose and 0.1 part of sodium benzoate into the nanoscale mixed solution, and dispersing and stirring at 1000rpm for 20 minutes by using a high-speed dispersing machine at normal temperature to obtain the medium and trace element quick-acting paste fertilizer.
The quick-acting medium trace element paste fertilizer obtained in example 1 and the paste fertilizer 2 (the preparation step lacks the (3) step) which is prepared in example 1 and is not added with dispersing agent, thickening agent and preservative are simultaneously placed at a cool and dry place, and the states of the two samples are observed within 10 months. The specific phenomena are shown in table 1:
table 1 state of two paste fertilizers after long-term storage
As can be seen from the comparison of the experimental conditions in Table 1, the paste fertilizer 2 without the dispersant and the thickener has high solid content but no rheological property, and due to the gravity action of the raw materials and the dispersion-free and suspension-stable properties, the water separation phenomenon is quickly generated, the stable storage and the subsequent use are not facilitated, and the paste fertilizer is deteriorated within 10 months, and black spots appear, so that the fertilizer efficiency is lost. The quick-acting paste fertilizer of the medium trace elements prepared in the embodiment 1 added with the proper dispersing agent has no water evolution in a short period, and has lower water evolution rate after being placed for 10 months, which indicates that the dispersing stability of raw material particles is improved by the electrostatic repulsive force and the steric hindrance effect of the dispersing agent added in the system, and the viscosity and the rheological property of the system are improved by the addition of the thickening agent, so that the overall stability of the system is improved; the addition of the preservative in the system ensures the stability of fertilizer quality.
Example 2
The preparation method of the medium trace element quick-acting paste fertilizer is characterized by comprising the following components in parts by weight:
(1) Mixing 35 parts of potassium nitrate, 30 parts of calcium formate, 25 parts of magnesium formate and 7 parts of microelements (disodium zinc ethylenediamine tetraacetate, disodium copper ethylenediamine tetraacetate 1, disodium manganese ethylenediamine tetraacetate 1, ferrous sulfate 2 and ammonium molybdate 1), adding 5 parts of a methyl olefine acid ester dispersing agent (ANTAROX B/848 sold by Nanjing guanhua trade Co., ltd.) which is prepared into a methyl olefine acid ester dispersing agent aqueous solution with the mass fraction concentration of 1%, and dispersing at a high speed at a rotating speed of 1000rpm to form auxiliary agent-containing slurry;
(2) Opening cooling water of a sand mill, pumping the uniformly dispersed slurry containing the auxiliary agent into the sand mill, controlling the grinding speed to be 2000RPM, and grinding for 50min to obtain nano-scale mixed liquid with the particle size of 30-3000 nm;
(3) Adding 0.2 part of aqueous organic silicon defoamer, 2 parts of xanthan gum and 0.1 part of sodium benzoate into the mixed solution, and dispersing and stirring for 20 minutes at the normal temperature by using a high-speed dispersing machine at the rotating speed of 1000 to obtain the medium trace element quick-acting pasty fertilizer;
the medium trace element quick-acting paste fertilizer produced according to example 2 was subjected to a fertilizer efficiency comparison test with a commercially available potassium calcium magnesium fertilizer (K: 55g/L; ca:120g/L; mg:20 g/L), and the test was carried out by selecting strawberry seedlings. There are 3 treatment groups (1 # quick-acting paste fertilizer with medium trace elements prepared in this example; 2# commercial potassium-calcium-magnesium fertilizer; 3# no fertilizer), and 3 pot plants are treated in each group, 9 pot plants are added. The corresponding fertilizers were applied at equal weight and equal dilution of No. 1 and No. 2, 1 fertilizer was applied for seven days, 6 total fertilizers were applied, and after each fertilization, the plant chlorophyll content and the fruit number, weight and sugar degree were measured by fixed leaf blades, and specific results are shown in Table 2 below:
table 2 fertilizer efficiency comparison and test results
The results in table 2 show that compared with the clear water component, the chlorophyll of the paste fertilizer in the example 2 and the commercial potassium-calcium-magnesium fertilizer is respectively increased by 14.1 percent and 12.76 percent after the paste fertilizer and the commercial potassium-calcium-magnesium fertilizer are diluted by 200 times after 6 times of flushing; fruit harvest yields increased by 9.95% and 8.75% compared to the clear water fraction, respectively, and sugar levels increased by 9.02% and 15.64% compared to the clear water fraction, respectively. The quick-acting paste fertilizer for medium and trace elements has good yield increasing effect. That is, in the flowering and fruiting period of the strawberries, the medium element suspension fertilizer which takes calcium formate and magnesium formate with better solubility as raw materials is applied, so that the quick-acting effect is strong, the chlorophyll content in the strawberry leaves can be improved, and photosynthesis is promoted; the fruit is strengthened and swelled, which is beneficial to color transfer of the fruit, increase the sugar degree of the fruit and improve the yield and quality of the strawberry.
Example 3
The preparation method of the medium trace element quick-acting paste fertilizer is characterized by comprising the following components in parts by weight:
(1) Mixing 35 parts of potassium formate, 30 parts of calcium nitrate, 25 parts of magnesium formate and 7 parts of trace elements (2 parts of disodium zinc ethylenediamine tetraacetate, 2 parts of disodium copper ethylenediamine tetraacetate, 1 part of disodium manganese ethylenediamine tetraacetate, 1 part of ferrous sulfate and 1 part of ammonium molybdate), adding 6 parts of fatty alcohol polyoxypropylene polyoxyethylene ether which is prepared into a fatty alcohol polyoxypropylene polyoxyethylene ether aqueous solution with the mass fraction concentration of 3%, and dispersing and stirring at a high speed of 1200rpm to form a slurry containing an auxiliary agent;
(2) Opening cooling water of a sand mill, pumping uniformly dispersed slurry containing an auxiliary agent into the sand mill, controlling the grinding speed to 1800RPM, and grinding for 45min to obtain a nano-scale mixed solution with the particle size of 30-3000 nm;
(3) Adding 0.2 part of polyether defoamer, 2 parts of xanthan gum and 0.1 part of sodium benzoate into the mixed solution, and stirring at the normal temperature for 40 minutes at the 1000 rotating speed by using a high-speed dispersing machine to obtain the medium trace element quick-acting paste fertilizer;
the invention and its embodiments have been described above by way of illustration and not limitation, and the actual construction is not limited thereto. Therefore, if one of ordinary skill in the art is informed by this disclosure, the structural mode and the embodiments similar to the technical scheme are not creatively designed without departing from the gist of the present invention.

Claims (10)

1. The quick-acting medium-trace element paste fertilizer is characterized by being prepared from the following components in parts by weight: 30-40 parts of potassium source, 35-50 parts of calcium source, 17-30 parts of magnesium source, 5-10 parts of trace elements, 5-15 parts of dispersing agent, 0.2-3 parts of defoaming agent, 1-10 parts of thickening agent and 0.1-1 part of preservative.
2. The quick-acting paste fertilizer for medium and trace elements according to claim 1, wherein the potassium source is one or a mixture of more than two of potassium formate, potassium nitrate and potassium sulfate.
3. The quick-acting paste fertilizer for medium and trace elements according to claim 1, wherein the calcium source is one or a mixture of more than two of calcium formate, calcium nitrate, calcium ammonium nitrate and calcium chloride.
4. The quick-acting medium and trace element paste fertilizer according to claim 1, wherein the magnesium source is one or a mixture of magnesium formate and magnesium nitrate.
5. The medium trace element quick-acting paste fertilizer according to claim 1, wherein the trace elements are one or a mixture of more than two of copper sulfate, disodium copper ethylenediamine tetraacetate, zinc sulfate, disodium zinc ethylenediamine tetraacetate, manganese sulfate, disodium manganese ethylenediamine tetraacetate, ferrous sulfate, disodium ferrous ethylenediamine tetraacetate, boric acid, sodium borate, zinc amino acid, ammonium molybdate and sodium molybdate in any proportion.
6. The quick-acting paste fertilizer for medium and trace elements according to claim 1, wherein the dispersing agent is one or a mixture of more than two of alpha-alkenyl sodium sulfonate, fatty alcohol polyoxyethylene ether sulfate, alkylphenol polyoxyethylene ether, lignin sodium sulfonate, sulfate salt, hydrophobic group modified carboxylic acid copolymer, fatty alcohol polyoxypropylene polyoxyethylene ether, methyl acrylate dispersing agent, dodecylamine polyoxyethylene ether and 3194 emulsifying dispersing agent in any proportion.
7. The quick-acting paste fertilizer for medium and trace elements according to claim 1, wherein the defoaming agent is one or a mixture of more than two of higher alcohol defoaming agents, polyethers, polyether modified aqueous defoaming agents, organosilicon aqueous defoaming agents and mineral and vegetable oil aqueous defoaming agents in any proportion.
8. The quick-acting paste fertilizer for medium and trace elements according to claim 1, wherein the preservative is one or a mixture of more than two of sodium dehydroacetate, calcium propionate, sodium benzoate, isothiazolinone, ethyl p-hydroxybenzoate, potassium citrate, sorbic acid or sodium sorbate in any proportion.
9. The medium trace element quick-acting pasty fertilizer according to claim 1, wherein the thickening agent is one or a mixture of more than two of attapulgite, magnesium aluminum silicate, acacia, xanthan gum, sodium carboxymethyl cellulose, polyvinyl alcohol, hydroxyethyl cellulose, chitin, polyacrylic acid, sodium alginate, sodium lauryl amphoacetate, tallow amine polyoxyethylene ether and fatty alcohol polyoxyethylene ether sulfate in any proportion.
10. The method for preparing the medium trace element quick-acting paste fertilizer according to any one of claims 1 to 9, which is characterized by comprising the following steps:
(1) Mixing a potassium source, a calcium source, a magnesium source and trace elements, and then adding a dispersant aqueous solution with the mass percent concentration of 1-5% to stir to form auxiliary agent-containing slurry;
(2) Introducing the auxiliary agent-containing slurry into a sanding device, and grinding for 0.5-3 hours at the rotating speed of 1500-3000RPM to obtain a nanoscale mixed solution with the particle size of 30-3000 nm;
(3) Adding defoamer, thickener and preservative into the nano-scale mixed solution, and stirring for 20-50 minutes at normal temperature.
CN202310366795.7A 2023-04-07 2023-04-07 Quick-acting paste fertilizer containing medium and trace elements and preparation method of quick-acting paste fertilizer Pending CN117024224A (en)

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CN202310366795.7A CN117024224A (en) 2023-04-07 2023-04-07 Quick-acting paste fertilizer containing medium and trace elements and preparation method of quick-acting paste fertilizer

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