CN106810397A - A kind of film-coated and slow release fertilizer of the acid soil improved containing calcium lime powder and preparation method thereof - Google Patents
A kind of film-coated and slow release fertilizer of the acid soil improved containing calcium lime powder and preparation method thereof Download PDFInfo
- Publication number
- CN106810397A CN106810397A CN201611157351.9A CN201611157351A CN106810397A CN 106810397 A CN106810397 A CN 106810397A CN 201611157351 A CN201611157351 A CN 201611157351A CN 106810397 A CN106810397 A CN 106810397A
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- CN
- China
- Prior art keywords
- water
- fertilizer
- lime powder
- calcium lime
- sodium alginate
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05B—PHOSPHATIC FERTILISERS
- C05B7/00—Fertilisers based essentially on alkali or ammonium orthophosphates
-
- 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
- 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
- C05G5/30—Layered or coated, e.g. dust-preventing coatings
Abstract
The invention discloses a kind of film-coated and slow release fertilizer of the acid soil improved containing calcium lime powder and preparation method thereof, it is characterised in that be made up of the raw material of following weight portion：Calcium lime powder 35, acrylic acid 10 20, sodium alginate soln 30 50, neopelex 12, ammonium persulfate 12, N, N, methylene-bisacrylamide 36, waste manganese slag 12, polyvinyl alcohol 15 25, starch 35, urea 25 35, potassium hydrogen phosphate 10 16, calcium chloride solution 40 50, distilled water 50 100；Be added to water-loss reducer in crosslinked fluid by the present invention, is then sprayed on again on fertilizer kernel, overcomes the caducous defect of water-loss reducer existed when water-loss reducer directly being sticked into fertilizer kernel, makes the Water-saving effect of fertilizer notable；Crosslinked fluid can also reach the purpose of enhancing fertilizer water resistance simultaneously, while easily biological-degradable, environment-friendly；Coordinating the calcium lime powder of addition has the effect for improveing acid soil.
Description
Technical field
The present invention relates to a kind of slow-release fertilizer, and in particular to a kind of coated slow-release of the acid soil improved containing calcium lime powder
Fertilizer and preparation method thereof.
Technical background
It with granular chemical fertilizer is heart core that coating slowly/controlled releasing fertilizer is, surface coats one layer of inorganic matter or organic of slightly water-soluble
High molecular polymer, the material can change the release characteristics of chemical fertilizer nutrient, extension or control fertilizer nutrient release, make its nutrient
The new-type fertilizer that release is mutually coordinated with the regulation of fertilizer requirement of crop.The development of this kind of fertilizer is raising utilization rate of fertilizer, mitigates environment
The modern agriculture that pollution, development save labor proposes new thinking.Therefore, fertilizer science, agrology, environmental science, chemistry etc.
The researcher of subject sets foot in the field one after another, and achieves large quantities of valuable achievements in research.At present, oneself applies and just grinds
The slow/controlled release material studied carefully can be divided into inorganic (ore deposit) thing powder, organic high molecular polymer, environmentally friendly material (organic-inorganic
Compound) three major types.
Ni Bo stands in its Master dissertation《The preparation of environmental friend type multifunction sustained-controll-release fertiliser and performance study》
In, a kind of the fertilizer of retaining water and releasing nutrients slowly is prepared for using sodium alginate and polyacrylic acid, but it is easy to fall off also to there is water-loss reducer, and coating is prevented
It is aqueous to have much room for improvement, and slow release it is not good enough the problems such as.
The content of the invention
Thinking based on more than, difficult for drop-off the invention provides a kind of water-loss reducer, coating good waterproof performance, slow release effect is excellent
Good environmentally friendly film-coated and slow release fertilizer, and preparation method thereof.
The technical problems to be solved by the invention are realized using following technical scheme：
A kind of film-coated and slow release fertilizer of the acid soil improved containing calcium lime powder, it is characterised in that be by the original of following weight portion
Material is made：
Calcium lime powder 3-5, acrylic acid 10-20, sodium alginate soln 30-50, neopelex 1-2, ammonium persulfate 1-
2, N, N ,-methylene-bisacrylamide 3-6, waste manganese slag 1-2, polyvinyl alcohol 15-25, starch 3-5, urea 25-35, phosphoric acid hydrogen
Potassium 10-16, calcium chloride solution 40-50, distilled water 50-100；
The sodium alginate soln mass fraction is 5%-30%, and calcium chloride solution mass fraction is 7%-15%.
2. the system of the film-coated and slow release fertilizer of a kind of acid soil improved containing calcium lime powder according to claim 1
Preparation Method, it is characterised in that be made up of following steps：
A. by acrylic acid, ammonium persulfate and N, N ,-methylene-bisacrylamide adds distilled water to be made mixed solution, is added dropwise to
In 10-20 parts of sodium alginate soln, lasting stirring；Logical nitrogen is after 15 minutes, the water-bath 2-5h under the conditions of 60-80 DEG C；
React after terminating, water-loss reducer is obtained after filtering, dry, crushing, sieving；
B. by polyvinyl alcohol addition distilled water, stirring is heated to 80-95 DEG C, continues stirring until it and is completely dissolved, and stops adding
Heat, adds gelatinized starch, stirring 20-40min to obtain polyvinyl alcohol-starch crosslinked fluid；Then to 3-5 parts of urine of addition in crosslinked fluid
Element, step a gained water-loss reducers, sealing are vibrated in water-bath at 40-60 DEG C, are cooled to room temperature, obtain urea-modified and contain water-loss reducer
Crosslinked fluid；
C. calcium lime powder, neopelex, waste manganese slag are sufficiently mixed, are then crushed material, make its mesh number
It is 100-200 mesh, finally drying makes the wet weight of material control in 5%-15%, that is, the fertilizer additive of powdery to be obtained；
D. remaining urea, potassium hydrogen phosphate and step c gained fertilizer additive are added in remaining sodium alginate soln, are stirred
Mix uniform；Then the mixed solution is dropwise added drop-wise in calcium chloride solution, sodium alginate is rapid to hand in the presence of calcium ion
Connection, forms the particle of uniform particle diameter, is as embedded with the fertilizer kernel of nutrient；
E. step d gained fertilizer kernels are put into the rotary drum of rotation, step b gained crosslinked fluids are sprayed into spray gun for paint, in 60-
Heating makes solvent volatilize at 80 DEG C, and product is obtained final product after drying.
A kind of preparation method of the film-coated and slow release fertilizer of described acid soil improved containing calcium lime powder, its feature exists
In the preparation method of the gelatinized starch is that starch is added in distilled water, and under the conditions of 60-80 DEG C, stirring in water bath is obtained.
The beneficial effects of the invention are as follows：The macromolecular skeleton of sodium alginate is grafted to by polypropylene by graft polymerization reaction
On acid molecule chain, a kind of agricultural water-loss reducer material of polysaccharide-based is prepared into, solves polyacrylic water-loss reducer degradability difference
Problem；With urea come modified polyvinylalcohol-starch crosslinked fluid, two amino contained using urea, the hydroxyl contained with crosslinked fluid
Base chemically reacts, and generates cyclic organic compounds, can reach and shelter light base, improves the purpose of membrane material water resistance；Will
Water-loss reducer is added in crosslinked fluid, is then sprayed on again on fertilizer kernel, overcomes and water-loss reducer directly is sticked into fertilizer kernel
When the caducous defect of water-loss reducer that exists, make the Water-saving effect of fertilizer notable；Crosslinked fluid can also reach enhancing fertilizer simultaneously
The purpose of water resistance, while easily biological-degradable, environment-friendly；Coordinating the calcium lime powder of additive has the work for improveing acid soil
With.
Specific embodiment
Specific embodiment of the invention is further described with reference to embodiment.
Embodiment
A kind of film-coated and slow release fertilizer of the acid soil improved containing calcium lime powder, it is characterised in that be by following weight portion
Raw material be made：
Calcium lime powder 5, acrylic acid 20, sodium alginate soln 50, neopelex 2, ammonium persulfate 2, N, N ,-methylene
Base bisacrylamide 6, waste manganese slag 2, polyvinyl alcohol 25, starch 5, urea 35, potassium hydrogen phosphate 16, calcium chloride solution 50, distilled water
100；
The sodium alginate soln mass fraction is 5%-30%, and calcium chloride solution mass fraction is 7%-15%.
2. the system of the film-coated and slow release fertilizer of a kind of acid soil improved containing calcium lime powder according to claim 1
Preparation Method, it is characterised in that be made up of following steps：
A. by acrylic acid, ammonium persulfate and N, N ,-methylene-bisacrylamide adds distilled water to be made mixed solution, is added dropwise to
In 10-20 parts of sodium alginate soln, lasting stirring；Logical nitrogen is after 15 minutes, the water-bath 2-5h under the conditions of 60-80 DEG C；
React after terminating, water-loss reducer is obtained after filtering, dry, crushing, sieving；
B. by polyvinyl alcohol addition distilled water, stirring is heated to 80-95 DEG C, continues stirring until it and is completely dissolved, and stops adding
Heat, adds gelatinized starch, stirring 20-40min to obtain polyvinyl alcohol-starch crosslinked fluid；Then to 3-5 parts of urine of addition in crosslinked fluid
Element, step a gained water-loss reducers, sealing are vibrated in water-bath at 40-60 DEG C, are cooled to room temperature, obtain urea-modified and contain water-loss reducer
Crosslinked fluid；
C. calcium lime powder, neopelex, waste manganese slag are sufficiently mixed, are then crushed material, make its mesh number
It is 100-200 mesh, finally drying makes the wet weight of material control in 5%-15%, that is, the fertilizer additive of powdery to be obtained；
D. remaining urea, potassium hydrogen phosphate and step c gained fertilizer additive are added in remaining sodium alginate soln, are stirred
Mix uniform；Then the mixed solution is dropwise added drop-wise in calcium chloride solution, sodium alginate is rapid to hand in the presence of calcium ion
Connection, forms the particle of uniform particle diameter, is as embedded with the fertilizer kernel of nutrient；
E. step d gained fertilizer kernels are put into the rotary drum of rotation, step b gained crosslinked fluids are sprayed into spray gun for paint, in 60-
Heating makes solvent volatilize at 80 DEG C, and product is obtained final product after drying.
A kind of preparation method of the film-coated and slow release fertilizer of described acid soil improved containing calcium lime powder, its feature exists
In the preparation method of the gelatinized starch is that starch is added in distilled water, and under the conditions of 60-80 DEG C, stirring in water bath is obtained.
Properties of product test data of the invention：When rate of fertilizer is 1%, soil maximum specific retention >=47.5%；Nutrition
Release percentage≤99%, 81.3%, 91.1% in elemental nitrogen, phosphorus and potassium 30 days in soil.
Claims (3)
1. a kind of film-coated and slow release fertilizer of the acid soil improved containing calcium lime powder, it is characterised in that be by following weight portion
Raw material is made：
Calcium lime powder 3-5, acrylic acid 10-20, sodium alginate soln 30-50, neopelex 1-2, ammonium persulfate 1-
2, N, N ,-methylene-bisacrylamide 3-6, waste manganese slag 1-2, polyvinyl alcohol 15-25, starch 3-5, urea 25-35, phosphoric acid hydrogen
Potassium 10-16, calcium chloride solution 40-50, distilled water 50-100；
The sodium alginate soln mass fraction is 5%-30%, and calcium chloride solution mass fraction is 7%-15%.
2. the preparation side of the film-coated and slow release fertilizer of a kind of acid soil improved containing calcium lime powder according to claim 1
Method, it is characterised in that be made up of following steps：
A. by acrylic acid, ammonium persulfate and N, N ,-methylene-bisacrylamide adds distilled water to be made mixed solution, is added dropwise to
In 10-20 parts of sodium alginate soln, lasting stirring；Logical nitrogen is after 15 minutes, the water-bath 2-5h under the conditions of 60-80 DEG C；
React after terminating, water-loss reducer is obtained after filtering, dry, crushing, sieving；
B. by polyvinyl alcohol addition distilled water, stirring is heated to 80-95 DEG C, continues stirring until it and is completely dissolved, and stops adding
Heat, adds gelatinized starch, stirring 20-40min to obtain polyvinyl alcohol-starch crosslinked fluid；Then to 3-5 parts of urine of addition in crosslinked fluid
Element, step a gained water-loss reducers, sealing are vibrated in water-bath at 40-60 DEG C, are cooled to room temperature, obtain urea-modified and contain water-loss reducer
Crosslinked fluid；
C. calcium lime powder, neopelex, waste manganese slag are sufficiently mixed, are then crushed material, make its mesh number
It is 100-200 mesh, finally drying makes the wet weight of material control in 5%-15%, that is, the fertilizer additive of powdery to be obtained；
D. remaining urea, potassium hydrogen phosphate and step c gained fertilizer additive are added in remaining sodium alginate soln, are stirred
Mix uniform；Then the mixed solution is dropwise added drop-wise in calcium chloride solution, sodium alginate is rapid to hand in the presence of calcium ion
Connection, forms the particle of uniform particle diameter, is as embedded with the fertilizer kernel of nutrient；
E. step d gained fertilizer kernels are put into the rotary drum of rotation, step b gained crosslinked fluids are sprayed into spray gun for paint, in 60-
Heating makes solvent volatilize at 80 DEG C, and product is obtained final product after drying.
3. the preparation side of the film-coated and slow release fertilizer of a kind of acid soil improved containing calcium lime powder according to claim 2
Method, it is characterised in that the preparation method of the gelatinized starch is that starch is added in distilled water, under the conditions of 60-80 DEG C, water
Bath stirring is obtained.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611157351.9A CN106810397A (en) | 2016-12-15 | 2016-12-15 | A kind of film-coated and slow release fertilizer of the acid soil improved containing calcium lime powder and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611157351.9A CN106810397A (en) | 2016-12-15 | 2016-12-15 | A kind of film-coated and slow release fertilizer of the acid soil improved containing calcium lime powder and preparation method thereof |
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| Publication Number | Publication Date |
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| CN106810397A true CN106810397A (en) | 2017-06-09 |
Family
ID=59109736
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611157351.9A Withdrawn CN106810397A (en) | 2016-12-15 | 2016-12-15 | A kind of film-coated and slow release fertilizer of the acid soil improved containing calcium lime powder and preparation method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108164358A (en) * | 2017-12-23 | 2018-06-15 | 郭舒洋 | A kind of preparation method of getting fat removing toxic substances type acid soil improving agent |
| CN109776730A (en) * | 2019-03-15 | 2019-05-21 | 贵州大学 | A kind of environmentally friendly water-loss reducer of soil and preparation method with slow-release function |
| CN115152580A (en) * | 2022-06-28 | 2022-10-11 | 重庆交通大学 | Waste engineering mud soft consolidation body planting matrix |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104692907A (en) * | 2013-12-07 | 2015-06-10 | 青岛水世界环保科技有限公司 | Environment-friendly multifunctional sustained-release fertilizer |
| CN105131964A (en) * | 2015-08-19 | 2015-12-09 | 南宁三达奥克化学有限责任公司 | Acidic soil conditioner |
-
2016
- 2016-12-15 CN CN201611157351.9A patent/CN106810397A/en not_active Withdrawn
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104692907A (en) * | 2013-12-07 | 2015-06-10 | 青岛水世界环保科技有限公司 | Environment-friendly multifunctional sustained-release fertilizer |
| CN105131964A (en) * | 2015-08-19 | 2015-12-09 | 南宁三达奥克化学有限责任公司 | Acidic soil conditioner |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108164358A (en) * | 2017-12-23 | 2018-06-15 | 郭舒洋 | A kind of preparation method of getting fat removing toxic substances type acid soil improving agent |
| CN109776730A (en) * | 2019-03-15 | 2019-05-21 | 贵州大学 | A kind of environmentally friendly water-loss reducer of soil and preparation method with slow-release function |
| CN115152580A (en) * | 2022-06-28 | 2022-10-11 | 重庆交通大学 | Waste engineering mud soft consolidation body planting matrix |
| CN115152580B (en) * | 2022-06-28 | 2023-11-28 | 重庆交通大学 | Waste engineering slurry soft concretion planting matrix |
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Application publication date: 20170609 |
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