CN106380338A - Chitosan coated controlled-release fertilizer for rice and preparation method thereof - Google Patents
Chitosan coated controlled-release fertilizer for rice and preparation method thereof Download PDFInfo
- Publication number
- CN106380338A CN106380338A CN201610753483.1A CN201610753483A CN106380338A CN 106380338 A CN106380338 A CN 106380338A CN 201610753483 A CN201610753483 A CN 201610753483A CN 106380338 A CN106380338 A CN 106380338A
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- Prior art keywords
- chitosan coated
- parts
- coated urea
- rice
- release fertilizer
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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
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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 chitosan coated controlled-release fertilizer for rice and a preparation method thereof. The fertilizer is prepared from the following raw materials (by weight): 35-45 parts of potassium sulfate, 25-35 parts of potassium dihydrogen phosphate, 20-30 parts of ammonium dihydrogen phosphate, 6-11 parts of a conditioning agent, 20-30 parts of 4% chitosan coated urea, 10-20 parts of 5% chitosan coated urea, 15-25 parts of 6% chitosan coated urea and 30-40 parts of starch based biodegradable plastics. By combining the conditioning agent and the fertilizer, an effect of regulating soil also can be achieved during the release process of the controlled-release fertilizer. The rice chitosan coated controlled-release fertilizer can provide nutrients for growth of rice to the maximum and also can release nutrients for soil. The release period cooperates with growth of rice, and average release of nitrogen phosphorus and potassium elements can be effectively guaranteed. The release of the fertilizer can satisfy absorption rate of rice. Therefore, quality and yield of rice are enhanced.
Description
Technical field
The present invention relates to fertilizer preparing technical field is and in particular to a kind of paddy rice shitosan coating controlled-release fertilizer and its preparation side
Method.
Background technology
Paddy rice can be divided into long-grained nonglutinous rice and japonica rice, early rice and middle late rice, glutinous rice and non-glutinous rice.China scientist Yuan Longping is to miscellaneous
The research handing over paddy rice makes a great contribution, and is described as " father of hybrid rice ".Paddy rice institute knot reality is paddy, and paddy (grain) goes
Rice, scented rice, rice is claimed after shell.Nearly half population in the world, all with rice for food.The eating method of rice is varied, has
Rice, congee, rice cake, rice cake, rice wine etc..Paddy rice, in addition to edible, can also be made wine, refine sugar and make the raw material of industry, rice husk, rice
Stalk, can be used as feed.China paddy rice main producing region is mainly the Northeast, the Yangtze river basin, Pearl River Delta.Belong to direct economy to make
Thing.Still the staple food of 1/3rd mankind in the world.Because paddy rice has high edibility and nutritive value, therefore paddy rice
Cultivation technique just in succession occur, during rice cropping, the control of fertilizer is particularly critical, applying fertilizer for a period of time after, remove
Sub-fraction can be by rice absorbing outside, others then can run off, cause substantial amounts of waste, in order to reduce this loss it is necessary to
The release rule of nutrient of fertilizer is required to coordinate with the Nutrient Absorption of paddy rice, the development of therefore Controlled Release Fertilizer becomes more and more, is
The characteristic that this present inventor is directed to paddy growth provides a kind of paddy rice shitosan coating controlled-release fertilizer and preparation method thereof.
Content of the invention
For solving above-mentioned technical problem, the invention provides a kind of paddy rice shitosan coating controlled-release fertilizer and preparation method thereof.
The present invention is achieved by the following technical programs：
A kind of paddy rice shitosan coating controlled-release fertilizer, it is made up of following raw material：Potassium sulfate 35-45 part, di(2-ethylhexyl)phosphate
Hydrogen potassium 25-35 part, ammonium dihydrogen phosphate 20-30 part, conditioner 6-11 part, 4% chitosan coated urea 20-30 part, 5% shitosan
Coated carbamide 10-20 part, 6% chitosan coated urea 15-25 part, Starch-base Degradable Plastic 30-40 part.
Described paddy rice shitosan coating controlled-release fertilizer is made up of following raw material：Potassium sulfate 37-43 part, potassium dihydrogen phosphate
27-33 part, ammonium dihydrogen phosphate 22-28 part, conditioner 8-12 part, 4% chitosan coated urea 22-28 part, 5% chitosan coated
Urea 12-18 part, 6% chitosan coated urea 17-23 part, Starch-base Degradable Plastic 32-38 part.
Described paddy rice shitosan coating controlled-release fertilizer is made up of following raw material：40 parts of potassium sulfate, potassium dihydrogen phosphate 30
Part, 25 parts of ammonium dihydrogen phosphate, 8.5 parts of conditioner, 25 parts of 4% chitosan coated urea, 15 parts of 5% chitosan coated urea, 6%
20 parts of chitosan coated urea, 35 parts of Starch-base Degradable Plastic.
Described conditioner is 1 by polyacrylic acid, inorganic acid, pyrolkigneous liquid, plant hormone in mass ratio：1：1：2 ratio is joined
System forms.
Described 4% chitosan coated urea refers to 4% that coating layer is gross mass, and N P and K mass percent is 43-0-
0,5% chitosan coated urea refers to 5% that coating layer is gross mass, and N P and K mass percent is 43-0-0,6% shitosan
Coated carbamide refers to 6% that coating layer is gross mass, and N P and K mass percent is 43-0-0.
The preparation method of described chitosan coated urea is to put into urea in coating machine, using shitosan, urea is sprayed
Parcel processes and obtains chitosan coated urea.
Present invention also offers the preparation method of above-mentioned paddy rice shitosan coating controlled-release fertilizer, the method is by potassium sulfate, phosphorus
Acid dihydride potassium, ammonium dihydrogen phosphate, conditioner, 4% chitosan coated urea, 5% chitosan coated urea, 6% chitosan coated
Urea mix after granulation be obtained composite fertilizer, reuse Starch-base Degradable Plastic composite fertilizer is carried out parcel process obtain water
Rice husk glycan coating controlled-release fertilizer finished product.
In described composite fertilizer, nitrogen element content is 25-30%, and phosphorus element content is 20-25%, and Determination of Potassium is 20-
25%.
The particle diameter of described composite fertilizer is 3-5mm.
The beneficial effects of the present invention is：Conditioner and fertilizer are combined, in Controlled Release Fertilizer in the raw material that the present invention adopts
The effect adjusting soil can also be played during release, this paddy rice shitosan coating controlled-release fertilizer, can to the full extent
Nutrition needed for paddy growth is provided, the content of soil to nutrient can be discharged simultaneously again, its deenergized period and paddy rice
Growth is mutually coordinated, can effectively ensure that the average release of n-p-k element so that the release of fertilizer disclosure satisfy that paddy rice
Absorption rate, improves quality and the yield of paddy rice.
Specific embodiment
Below in conjunction with specific embodiment, technical scheme is further described, but claimed scope is not
It is confined to described.
Embodiment one
Formula：Potassium sulfate 35kg, potassium dihydrogen phosphate 25kg, ammonium dihydrogen phosphate 20kg, conditioner 6kg, 4% chitosan coated
Urea 20kg, 5% chitosan coated urea 10kg, 6% chitosan coated urea 15kg, Starch-base Degradable Plastic 30kg.
Conditioner is 1 by polyacrylic acid, inorganic acid, pyrolkigneous liquid, plant hormone in mass ratio：1：1：2 proportions and
Become.
Preparation method：By potassium sulfate, potassium dihydrogen phosphate, ammonium dihydrogen phosphate, conditioner, 4% chitosan coated urea, 5%
Granulation after chitosan coated urea, 6% chitosan coated urea mix is obtained composite fertilizer, reuses Starch-base Degradable Plastic
Composite fertilizer is carried out with parcel process and obtains rice husk glycan coating controlled-release fertilizer finished product, in composite fertilizer, nitrogen element content is 25%,
Phosphorus element content is 20%, and Determination of Potassium is 20%, and the particle diameter of composite fertilizer is 3mm.
Embodiment two
Formula：Potassium sulfate 45kg, potassium dihydrogen phosphate 35kg, ammonium dihydrogen phosphate 30kg, conditioner 11kg, 4% shitosan bag
Film urea 30kg, 5% chitosan coated urea 20kg, 6% chitosan coated urea 25kg, Starch-base Degradable Plastic 40kg.
Conditioner is 1 by polyacrylic acid, inorganic acid, pyrolkigneous liquid, plant hormone in mass ratio：1：1：2 proportions and
Become.
Preparation method：By potassium sulfate, potassium dihydrogen phosphate, ammonium dihydrogen phosphate, conditioner, 4% chitosan coated urea, 5%
Granulation after chitosan coated urea, 6% chitosan coated urea mix is obtained composite fertilizer, reuses Starch-base Degradable Plastic
Composite fertilizer is carried out with parcel process and obtains rice husk glycan coating controlled-release fertilizer finished product, in composite fertilizer, nitrogen element content is 30%,
Phosphorus element content is 25%, and Determination of Potassium is 25%, and the particle diameter of composite fertilizer is 5mm.
Embodiment three
Formula：Potassium sulfate 37kg, potassium dihydrogen phosphate 27kg, ammonium dihydrogen phosphate 22kg, conditioner 8kg, 4% chitosan coated
Urea 22kg, 5% chitosan coated urea 12kg, 6% chitosan coated urea 17kg, Starch-base Degradable Plastic 32kg.
Conditioner is 1 by polyacrylic acid, inorganic acid, pyrolkigneous liquid, plant hormone in mass ratio：1：1：2 proportions and
Become.
Preparation method：By potassium sulfate, potassium dihydrogen phosphate, ammonium dihydrogen phosphate, conditioner, 4% chitosan coated urea, 5%
Granulation after chitosan coated urea, 6% chitosan coated urea mix is obtained composite fertilizer, reuses Starch-base Degradable Plastic
Composite fertilizer is carried out with parcel process and obtains rice husk glycan coating controlled-release fertilizer finished product, in composite fertilizer, nitrogen element content is 25%,
Phosphorus element content is 20%, and Determination of Potassium is 20%, and the particle diameter of composite fertilizer is 3mm.
Example IV
Formula：Potassium sulfate 43kg, potassium dihydrogen phosphate 33kg, ammonium dihydrogen phosphate 28kg, conditioner 12kg, 4% shitosan bag
Film urea 28kg, 5% chitosan coated urea 18kg, 6% chitosan coated urea 23kg, Starch-base Degradable Plastic 38kg.
Conditioner is 1 by polyacrylic acid, inorganic acid, pyrolkigneous liquid, plant hormone in mass ratio：1：1：2 proportions and
Become.
Preparation method：By potassium sulfate, potassium dihydrogen phosphate, ammonium dihydrogen phosphate, conditioner, 4% chitosan coated urea, 5%
Granulation after chitosan coated urea, 6% chitosan coated urea mix is obtained composite fertilizer, reuses Starch-base Degradable Plastic
Composite fertilizer is carried out with parcel process and obtains rice husk glycan coating controlled-release fertilizer finished product, in composite fertilizer, nitrogen element content is 30%,
Phosphorus element content is 25%, and Determination of Potassium is 25%, and the particle diameter of composite fertilizer is 5mm.
Embodiment five
Formula：Potassium sulfate 40kg, potassium dihydrogen phosphate 30kg, ammonium dihydrogen phosphate 25kg, conditioner 8.5kg, 4% shitosan bag
Film urea 25kg, 5% chitosan coated urea 15kg, 6% chitosan coated urea 20kg, Starch-base Degradable Plastic 35kg.
Conditioner is 1 by polyacrylic acid, inorganic acid, pyrolkigneous liquid, plant hormone in mass ratio：1：1：2 proportions and
Become.
Preparation method：By potassium sulfate, potassium dihydrogen phosphate, ammonium dihydrogen phosphate, conditioner, 4% chitosan coated urea, 5%
Granulation after chitosan coated urea, 6% chitosan coated urea mix is obtained composite fertilizer, reuses Starch-base Degradable Plastic
Composite fertilizer is carried out with parcel process and obtains rice husk glycan coating controlled-release fertilizer finished product, in composite fertilizer, nitrogen element content is
27.5%, phosphorus element content is 22.5%, and Determination of Potassium is 22.5%, and the particle diameter of composite fertilizer is 4mm.
Claims (9)
1. a kind of paddy rice shitosan coating controlled-release fertilizer it is characterised in that：It is made up of following raw material：Potassium sulfate 35-45
Part, potassium dihydrogen phosphate 25-35 part, ammonium dihydrogen phosphate 20-30 part, conditioner 6-11 part, 4% chitosan coated urea 20-30 part,
5% chitosan coated urea 10-20 part, 6% chitosan coated urea 15-25 part, Starch-base Degradable Plastic 30-40 part.
2. paddy rice shitosan coating controlled-release fertilizer according to claim 1 it is characterised in that：The chitosan coated control of described paddy rice
Release fertilizer to be made up of following raw material：Potassium sulfate 37-43 part, potassium dihydrogen phosphate 27-33 part, ammonium dihydrogen phosphate 22-28 part, tune
Reason agent 8-12 part, 4% chitosan coated urea 22-28 part, 5% chitosan coated urea 12-18 part, 6% chitosan coated urine
Plain 17-23 part, Starch-base Degradable Plastic 32-38 part.
3. paddy rice shitosan coating controlled-release fertilizer according to claim 1 it is characterised in that：The chitosan coated control of described paddy rice
Release fertilizer to be made up of following raw material：40 parts of potassium sulfate, 30 parts of potassium dihydrogen phosphate, 25 parts of ammonium dihydrogen phosphate, conditioner 8.5
Part, 25 parts of 4% chitosan coated urea, 15 parts of 5% chitosan coated urea, 20 parts of 6% chitosan coated urea, starch base fall
35 parts of plastics of solution.
4. paddy rice shitosan coating controlled-release fertilizer according to claim 1 it is characterised in that：Described conditioner is by polypropylene
Acid, inorganic acid, pyrolkigneous liquid, plant hormone are 1 in mass ratio：1：1：2 proportions form.
5. paddy rice shitosan coating controlled-release fertilizer according to claim 1 it is characterised in that：Described 4% chitosan coated urine
Element refers to 4% that coating layer is gross mass, and N P and K mass percent is 43-0-0, and 5% chitosan coated urea refers to coating
Layer is the 5% of gross mass, and N P and K mass percent is 43-0-0, and 6% chitosan coated urea refers to that coating layer is gross mass
6%, N P and K mass percent be 43-0-0.
6. paddy rice shitosan coating controlled-release fertilizer according to claim 1 it is characterised in that：Described chitosan coated urea
Preparation method is to put into urea in coating machine, using shitosan, urea is sprayed with parcel process and obtains chitosan coated urine
Element.
7. paddy rice shitosan coating controlled-release fertilizer according to claim 1 preparation method it is characterised in that：The method be by
Potassium sulfate, potassium dihydrogen phosphate, ammonium dihydrogen phosphate, conditioner, 4% chitosan coated urea, 5% chitosan coated urea, 6% shell
Granulation after glycan coated carbamide mixes is obtained composite fertilizer, reuses Starch-base Degradable Plastic and carries out parcel process to composite fertilizer
Obtain rice husk glycan coating controlled-release fertilizer finished product.
8. paddy rice shitosan coating controlled-release fertilizer according to claim 7 preparation method it is characterised in that：Described composite fertilizer
Middle nitrogen element content is 25-30%, and phosphorus element content is 20-25%, and Determination of Potassium is 20-25%.
9. paddy rice shitosan coating controlled-release fertilizer according to claim 7 preparation method it is characterised in that：Described composite fertilizer
Particle diameter be 3-5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610753483.1A CN106380338A (en) | 2016-08-29 | 2016-08-29 | Chitosan coated controlled-release fertilizer for rice and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610753483.1A CN106380338A (en) | 2016-08-29 | 2016-08-29 | Chitosan coated controlled-release fertilizer for rice and preparation method thereof |
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| Publication Number | Publication Date |
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| CN106380338A true CN106380338A (en) | 2017-02-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201610753483.1A Pending CN106380338A (en) | 2016-08-29 | 2016-08-29 | Chitosan coated controlled-release fertilizer for rice and preparation method thereof |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1096778A (en) * | 1993-06-23 | 1994-12-28 | 罗力 | A kind of slowly-releasing super-multicomponent fertilizer |
| CN1609076A (en) * | 2004-11-03 | 2005-04-27 | 中国农业科学院土壤肥料研究所 | Production process of slowly/controlled releasing fertilizer for rice |
| CN1923949A (en) * | 2006-09-22 | 2007-03-07 | 东北林业大学 | Preparation method of saline-alkali soil improving agent |
| CN101177367A (en) * | 2007-11-05 | 2008-05-14 | 山东金正大生态工程股份有限公司 | Special controlled release fertilizer for rice and preparation method thereof |
| CN102363585A (en) * | 2011-11-25 | 2012-02-29 | 史丹利化肥股份有限公司 | Chitosan-coated controlled release fertilizer special for sweet osmanthus trees and preparation method for fertilizer |
| CN102850132A (en) * | 2012-09-24 | 2013-01-02 | 菏泽金正大生态工程有限公司 | Preparation method of mechanically fertilized controlled-release fertilizer special for winter wheat |
| CN104016798A (en) * | 2014-06-13 | 2014-09-03 | 史丹利化肥股份有限公司 | Multifunctional selenium-enriched controlled-release special fertilizer for rice |
-
2016
- 2016-08-29 CN CN201610753483.1A patent/CN106380338A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1096778A (en) * | 1993-06-23 | 1994-12-28 | 罗力 | A kind of slowly-releasing super-multicomponent fertilizer |
| CN1609076A (en) * | 2004-11-03 | 2005-04-27 | 中国农业科学院土壤肥料研究所 | Production process of slowly/controlled releasing fertilizer for rice |
| CN1923949A (en) * | 2006-09-22 | 2007-03-07 | 东北林业大学 | Preparation method of saline-alkali soil improving agent |
| CN101177367A (en) * | 2007-11-05 | 2008-05-14 | 山东金正大生态工程股份有限公司 | Special controlled release fertilizer for rice and preparation method thereof |
| CN102363585A (en) * | 2011-11-25 | 2012-02-29 | 史丹利化肥股份有限公司 | Chitosan-coated controlled release fertilizer special for sweet osmanthus trees and preparation method for fertilizer |
| CN102850132A (en) * | 2012-09-24 | 2013-01-02 | 菏泽金正大生态工程有限公司 | Preparation method of mechanically fertilized controlled-release fertilizer special for winter wheat |
| CN104016798A (en) * | 2014-06-13 | 2014-09-03 | 史丹利化肥股份有限公司 | Multifunctional selenium-enriched controlled-release special fertilizer for rice |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication | ||
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Application publication date: 20170208 |