CN106748250A - Ligand complex coating type urea containing trace-element slow-release and preparation method thereof - Google Patents
Ligand complex coating type urea containing trace-element slow-release and preparation method thereof Download PDFInfo
- Publication number
- CN106748250A CN106748250A CN201710021930.9A CN201710021930A CN106748250A CN 106748250 A CN106748250 A CN 106748250A CN 201710021930 A CN201710021930 A CN 201710021930A CN 106748250 A CN106748250 A CN 106748250A
- Authority
- CN
- China
- Prior art keywords
- release
- aqueous solution
- urea
- ligand complex
- coating type
- Prior art date
- 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.)
- Granted
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05C—NITROGENOUS FERTILISERS
- C05C9/00—Fertilisers containing urea or urea compounds
-
- 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
- C05G5/00—Fertilisers characterised by their form
- C05G5/30—Layered or coated, e.g. dust-preventing coatings
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
- Y02P60/20—Reduction of greenhouse gas [GHG] emissions in agriculture, e.g. CO2
- Y02P60/21—Dinitrogen oxide [N2O], e.g. using aquaponics, hydroponics or efficiency measures
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Pest Control & Pesticides (AREA)
- Fertilizers (AREA)
Abstract
It is a kind of ligand complex coating type urea containing trace-element slow-release and preparation method thereof the present invention relates to slow release fertilizer technical field, the ligand complex coating type urea containing trace-element slow-release is obtained by following preparation methods：The first step, takes 10g to 1kg granular ureas and is preheated to 60 DEG C to 80 DEG C, takes the degradable natural coated fertilizer of 20g to 2kg.The present invention obtains slow-release carbamide by coating legal system layer by layer, polyphenol compound is set to form tridimensional network in particle exterior surface with metal ion, form more stable on granular urea surface to reach, finer and close coating system, the coating of formation is water insoluble and can improve sustained release performance and can be for plant provides multiple nutrient, and tridimensional network stabilization, it is not easy friability, after the ligand complex coating type of the invention use of urea containing trace-element slow-release, the tridimensional network of urea surface is slowly decomposed, urea and metal ion are able to slowly discharge, rate of release is more steady.
Description
Technical field
The present invention relates to slow release fertilizer technical field, be a kind of ligand complex coating type urea containing trace-element slow-release and its
Preparation method.
Background technology
Slow/controlled release urea can be divided into the major class of sustained/controlled release urea two as obtained in chemical method and Physical, and chemical method is mainly
Refer to the microsolubility nitrogen-containing compound that urea is generated with organic compound through condensation reaction, such as ureaformaldehyde, IBDU, triazine
Ketone, urea acetaldehyde, oxamides etc..Sustained/controlled release urea obtained in Physical can be divided into:（1）Limitation dissolving class slow-release carbamide, including it is big
Granular urea, the sustained release of the molten class material of addition resistance (such as to addition copper-containing compound, zinc compound in urea melting liquid) are urinated
Element and surface-coating urea；（2）Suppress to decompose class slow-release carbamide, including the sustained release of addition urease inhibitor or nitrification inhibitor is urinated
Element.
Traditional fertilizer due to the solubility of nutrient, after it is manured into soil before crop not yet utilizes
Serious loss or fixed will occur, this fertilization mode will cause soil hardening or desertification, and cause water source eutrophication, seriously
Polluted source, serious harm natural environment.Coating is the Main Means for realizing slow/controlled release, and coated carbamide is in granular urea
Uniformly parcel last layer hinders the hydrophobic material of mass transfer, can slow down rate of release, the release of extension fertilizer of fertilizer
Cycle.Current coated fertilizer is broadly divided into 4 kinds, respectively：Inorganic material（Sulphur, gypsum etc.）, polymeric material（Polyethylene etc.）、
High absorbency material（Poly propenoic acid acryloyl etc.）, Biocomposite material（Starch etc.）, but sulphur film is crisp, and to be also easy to produce slight crack same
Shi Zaocheng soil acidifications, polymer capsule material is polluted to environment, high cost, high absorbency material preparation process complexity,
Not biodegradable, there is Biocomposite material hydrophily to be easy to run off, though these reasons cause that current coated carbamide has one
Fixed slow release effect, but the effect similar to Crop growing stage is not reached also, and the coated fertilizer of some can without biology
Degradability, is remained in soil, and secondary pollution is caused to soil and environment.
The content of the invention
The invention provides a kind of ligand complex coating type urea containing trace-element slow-release and preparation method thereof, overcome
State the deficiency of prior art, its can effectively solve current slow-release carbamide exist film it is crisp be also easy to produce slight crack, environment polluted,
High cost, the not biodegradable, problem that is easy to run off.
One of technical scheme is realized by following measures：A kind of ligand complex coating type contains micro unit
Plain slow-release carbamide, obtains as follows：The first step, takes 10g to 1kg granular ureas and is preheated to 60 DEG C to 80 DEG C, takes 20g extremely
The degradable natural coated fertilizer of 2kg, takes the polyphenol compound Polyphenols for being made 1mg/ml to 100mg/ml soluble in water
The compound aqueous solution, takes the salts substances aqueous metallic ions for being made 1mg/ml to 100mg/ml soluble in water of metallic element,
Configuration pH is 8 to 12 alkaline solution, and the adhesive for taking degradable natural coated fertilizer quality 1% to 10% soluble in water is made
Binder aqueous solution；Second step, degradable natural coated fertilizer is wrapped up on granular urea outer surface after preheat, Ran Houxiang
Urea granules surface spray metal deionized water solution, the polyphenol compound aqueous solution, alkaline solution and binder aqueous solution successively,
It is afterwards once one that aqueous metallic ions, the polyphenol compound aqueous solution, alkaline solution and binder aqueous solution has been sprayed respectively
Group spraying operation, the quantity for spray of each every kind of solution is 2ml to 10ml, and 5 groups to 50 groups spraying operations, every group of spraying behaviour are carried out altogether
Interval time is 1s to 10min between work；3rd step, is dried cooling and obtains ligand complex coating type after the completion of spraying operation
Urea containing trace-element slow-release.
Here is the further optimization and/or improvements to one of foregoing invention technical scheme：
Above-mentioned degradable natural coated fertilizer is polyphenol compound or starch or cellulose；Or/and, adhesive is polyethylene
Alcohol；Or/and, metal ion is one or more of iron, zinc, copper, manganese.
Above-mentioned polyphenol compound is tannic acid, Tea Polyphenols, epicatechin, epicatechin gallate, epigallocatechin gallate
One or more of theine, Epigallo-catechin gallate (EGCG).
It is above-mentioned to fill aqueous metallic ions, the polyphenol compound aqueous solution, alkaline solution and binder aqueous solution respectively
Enter and carry out spraying operation in different sprayer units.
The two of technical scheme are realized by following measures：A kind of ligand complex coating type contains micro unit
The preparation method of plain slow-release carbamide, is carried out in the steps below：The first step, takes 10g to 1kg granular ureas and is preheated to 60 DEG C to 80
DEG C, the degradable natural coated fertilizer of 20g to 2kg is taken, take that polyphenol compound is soluble in water to be made 1mg/ml to 100mg/ml
The polyphenol compound aqueous solution, take the salts substances metal for being made 1mg/ml to 100mg/ml soluble in water of metallic element from
The sub- aqueous solution, configuration pH is 8 to 12 alkaline solution, and the adhesive for taking degradable natural coated fertilizer quality 1% to 10% is dissolved in
The binder aqueous solution being made in water；Second step, by degradable natural coated fertilizer parcel granular urea appearance after preheat
On face, then to urea granules surface successively spray metal deionized water solution, the polyphenol compound aqueous solution, alkaline solution and viscous
The mixture aqueous solution, aqueous metallic ions, the polyphenol compound aqueous solution, alkaline solution and binder aqueous solution have been sprayed respectively
It is afterwards once one group of spraying operation, the quantity for spray of each every kind of solution is 2ml to 10ml, and 5 groups to 50 groups spraying operations are carried out altogether,
Interval time is 1s to 10min between every group of spraying operation；3rd step, is dried cooling and is coordinated after the completion of spraying operation
Complexing coating type urea containing trace-element slow-release.
Here is the further optimization and/or improvements to the two of foregoing invention technical scheme：
Above-mentioned degradable natural coated fertilizer is polyphenol compound or starch or cellulose；Or/and, adhesive is polyethylene
Alcohol；Or/and, metal ion is one or more of iron, zinc, copper, manganese.
Above-mentioned polyphenol compound is tannic acid, Tea Polyphenols, epicatechin, epicatechin gallate, epigallocatechin gallate
One or more of theine, Epigallo-catechin gallate (EGCG).
It is above-mentioned to fill aqueous metallic ions, the polyphenol compound aqueous solution, alkaline solution and binder aqueous solution respectively
Enter and carry out spraying operation in different sprayer units.
The degradable natural coated fertilizer that the present invention is used is degradable, and environment will not be polluted, and is environmentally friendly
Material, the trace element that metal ion can be for needed for crop provides growth, the polyphenol compound that it is used is for renewable, green
The material that color is natural, material is cheap, can be degraded by microorganisms, slow-release carbamide is obtained by coating legal system layer by layer, makes Polyphenols chemical combination
Thing and metal ion form tridimensional network in particle exterior surface, with reach granular urea surface formed it is more stable, more cause
Close coating system, the coating of formation is water insoluble and can improve sustained release performance and can be for plant provides multiple nutrient, and three
Dimension network structure stabilization, it is not easy to friability, after the ligand complex coating type of the invention use of urea containing trace-element slow-release, urea
The tridimensional network on surface is slowly decomposed, and urea and metal ion are able to slowly discharge, and rate of release is more steady.
Brief description of the drawings
Accompanying drawing 1 is soil eluviation empirical curve of the ligand complex coating type of the present invention containing trace-element slow-release urea.
Specific embodiment
The present invention is not limited by following embodiments, can technology according to the present invention scheme and actual conditions determine specifically
Implementation method.Various chemical reagent and chemical article are previously mentioned in the present invention unless otherwise specified, are known in existing technology
Public chemical reagent and chemical article；Percentage in the present invention is as without specified otherwise, being mass percent；The present invention
In water as being running water or pure water without specified otherwise；If the solution in the present invention is without specified otherwise, being solvent is
The aqueous solution of water, for example, hydrochloric acid solution is aqueous hydrochloric acid solution；Normal temperature in the present invention refers generally to 15 DEG C to 25 DEG C of temperature,
It is commonly defined as 25 DEG C.
With reference to embodiment and accompanying drawing, the invention will be further described：
Embodiment 1, the ligand complex coating type urea containing trace-element slow-release is obtained by following preparation methods：The first step, takes 10g
60 DEG C to 80 DEG C are preheated to 1kg granular ureas, the degradable natural coated fertilizer of 20g to 2kg is taken, polyphenol compound is taken molten
Yu Shuizhong is made the polyphenol compound aqueous solution of 1mg/ml to 100mg/ml, takes the salts substances system soluble in water of metallic element
Into the aqueous metallic ions of 1mg/ml to 100mg/ml, configuration pH is 8 to 12 alkaline solution, takes degradable natural coating material
Expect the adhesive binder aqueous solution being made soluble in water of quality 1% to 10%；Second step, by degradable natural coated fertilizer bag
Wrap up on granular urea outer surface after preheat, then to urea granules surface successively spray metal deionized water solution, Polyphenols
Compound water solution, alkaline solution and binder aqueous solution, aqueous metallic ions, the polyphenol compound aqueous solution, alkalescence are molten
Liquid and binder aqueous solution have been sprayed once afterwards for one group of spraying operation respectively, the quantity for spray of each every kind of solution for 2ml extremely
10ml, carries out 5 groups to 50 groups spraying operations altogether, and interval time is 1s to 10min between every group of spraying operation；3rd step, spraying
Cooling is dried after the completion of operation and obtains ligand complex coating type urea containing trace-element slow-release.
Degradable natural coated fertilizer is degradable, and environment will not be polluted, and is environmentally friendly material；Metal ion
The trace element needed for growing can be provided for crop, the polyphenol compound that it is used is honest and clean for renewable, green natural, material
Valency, the material that can be degraded by microorganisms；The purpose for repeating multigroup spraying operation is to reduce urea granules outer surface coating
Crackle and micropore, slow-release carbamide is obtained by coating legal system layer by layer, and the present invention is to make polyphenol compound with metal ion in particle
Outer surface forms tridimensional network, and more stable, finer and close coating system is formed on granular urea surface to reach, therefore,
The coating that the present invention is formed is water insoluble therefore not easily run off, and can improve sustained release performance and can for plant provides multiple nutrient,
And tridimensional network stabilization, it is not easy to which friability, ligand complex coating type of the invention urea containing trace-element slow-release is used
Afterwards, the tridimensional network of urea surface is slowly decomposed, and urea and metal ion are able to slowly discharge, and rate of release is more steady.
Embodiment 2, the ligand complex coating type urea containing trace-element slow-release is obtained by following preparation methods：The first step,
Take 10g or 1kg granular ureas and be preheated to 60 DEG C to 80 DEG C, take the degradable natural coated fertilizer of 20g or 2kg, take Polyphenols
The compound polyphenol compound aqueous solution for being made 1mg/ml or 100mg/ml soluble in water, the salts substances for taking metallic element are dissolved in
The aqueous metallic ions of 1mg/ml or 100mg/ml are made in water, configuration pH is 8 or 12 alkaline solution, takes degradable natural
The adhesive binder aqueous solution being made soluble in water of coated fertilizer quality 1% or 10%；Second step, by degradable natural coating
On material parcel granular urea outer surface after preheat, then to urea granules surface successively spray metal deionized water solution,
The polyphenol compound aqueous solution, alkaline solution and binder aqueous solution, aqueous metallic ions, the polyphenol compound aqueous solution,
It is afterwards once one group of spraying operation that alkaline solution and binder aqueous solution have been sprayed respectively, and the quantity for spray of each every kind of solution is
2ml or 10ml, carries out 5 groups or 50 groups of spraying operations altogether, and interval time is 1s or 10min between every group of spraying operation；3rd step,
Cooling is dried after the completion of spraying operation and obtains ligand complex coating type urea containing trace-element slow-release.
Embodiment 3, as the optimization of above-described embodiment, degradable natural coated fertilizer be polyphenol compound or starch or
Cellulose；Or/and, adhesive is polyvinyl alcohol；Or/and, metal ion is one or more of iron, zinc, copper, manganese.Metal from
The trace element addition that son can need according to crop supplies plant absorption, is not limited only to limited range of the present invention.
Embodiment 4, used as the optimization of above-described embodiment, polyphenol compound is tannic acid, Tea Polyphenols, epicatechin, table
One or more of catechin gallic acid, epigallocatechin, Epigallo-catechin gallate (EGCG).Polyphenols chemical combination
Tannic acid in thing is distributed widely in the leaf of plant, skin, wood, fruit, is one of object of forest reserves comprehensive utilization, in many
Tannin content is up to 20% to 40% in coniferous bark, is only second to the content of cellulose, lignin, hemicellulose, in the world 3400
In the billion cubic meter forest reserves, bark accounts for 10% to 15%, and in terms of hundred million tons, vegatable tannin is that a class is enriched to tannin number of resources in bark
Green resource.
Embodiment 5, as the optimization of above-described embodiment, by aqueous metallic ions, the polyphenol compound aqueous solution, alkalescence
Solution and binder aqueous solution carry out spraying operation in being respectively charged into different sprayer units.Sprayed by sprayer, can made
Obtain various solution to be evenly distributed on the outer surface of granular urea so that polyphenol compound is with metal ion in particle appearance
Face can fully react.
Release conditions of the ligand complex coating type of the invention containing trace-element slow-release urea are horizontal as shown in figure 1, in Fig. 1
Coordinate is total number of days of release, and ordinate is the percentage of urea release, and this figure is the simulation soil eluviation experiment for carrying out, purpose
It is the release conditions and loss for detecting urea in soil, sample 1 to sample 3 is according to matching somebody with somebody that the above embodiment of the present invention is obtained
Position complexing coating type urea containing trace-element slow-release, as seen from the figure, industrial urea burst size of nitrogen when second day just connects
It is near complete（Reach burst size 100%）, and ligand complex coating type of the invention urea containing trace-element slow-release releasing effect is in throwing
Thing wire state, it can be clearly seen that slow releasing effect, can overcome common technical grade urea to discharge too fast shortcoming.
Above technical characteristic constitutes embodiments of the invention, and it has stronger adaptability and implementation result, can basis
The non-essential technical characteristic of increase and decrease is actually needed to meet the demand of different situations.
Claims (10)
1. a kind of ligand complex coating type urea containing trace-element slow-release, it is characterised in that obtain as follows：The first step, takes
10g to 1kg granular ureas are preheated to 60 DEG C to 80 DEG C, take the degradable natural coated fertilizer of 20g to 2kg, take Polyphenols chemical combination
The thing polyphenol compound aqueous solution for being made 1mg/ml to 100mg/ml soluble in water, the salts substances for taking metallic element are dissolved in water
In be made the aqueous metallic ions of 1mg/ml to 100mg/ml, configuration pH is 8 to 12 alkaline solution, takes degradable natural bag
The adhesive of membrane material quality 1% to 10% binder aqueous solution being made soluble in water；Second step, by degradable natural coating material
On material parcel granular urea outer surface after preheat, then to urea granules surface successively spray metal deionized water solution, many
The phenolic compound aqueous solution, alkaline solution and binder aqueous solution, aqueous metallic ions, the polyphenol compound aqueous solution, alkali
Property solution and binder aqueous solution sprayed respectively once afterwards for one group of spraying operation, the quantity for spray of each every kind of solution is 2ml
To 10ml, 5 groups to 50 groups spraying operations are carried out altogether, interval time is 1s to 10min between every group of spraying operation；3rd step, spray
Cooling is dried after the completion of painting operation obtain ligand complex coating type urea containing trace-element slow-release.
2. ligand complex coating type urea containing trace-element slow-release according to claim 1, it is characterised in that degradable day
Right coated fertilizer is polyphenol compound or starch or cellulose；Or/and, adhesive is polyvinyl alcohol；Or/and, metal ion
It is one or more of iron, zinc, copper, manganese.
3. ligand complex coating type urea containing trace-element slow-release according to claim 1 and 2, it is characterised in that Polyphenols
Compound is tannic acid, Tea Polyphenols, epicatechin, epicatechin gallate, epigallocatechin, epigallocatechin
One or more of gallate.
4. ligand complex coating type urea containing trace-element slow-release according to claim 1 and 2, it is characterised in that by metal
Deionized water solution, the polyphenol compound aqueous solution, alkaline solution and binder aqueous solution are respectively charged into different sprayer units
Carry out spraying operation.
5. ligand complex coating type urea containing trace-element slow-release according to claim 3, it is characterised in that by metal from
The sub- aqueous solution, the polyphenol compound aqueous solution, alkaline solution and binder aqueous solution enter in being respectively charged into different sprayer units
Row spraying operation.
6. a kind of ligand complex coating type contains the preparation method of trace-element slow-release urea, it is characterised in that enter in the steps below
OK：The first step, takes 10g to 1kg granular ureas and is preheated to 60 DEG C to 80 DEG C, takes the degradable natural coated fertilizer of 20g to 2kg,
The polyphenol compound polyphenol compound aqueous solution for being made 1mg/ml to 100mg/ml soluble in water is taken, the salt of metallic element is taken
The class material aqueous metallic ions for being made 1mg/ml to 100mg/ml soluble in water, configuration pH is 8 to 12 alkaline solution, is taken
The adhesive binder aqueous solution being made soluble in water of degradable natural coated fertilizer quality 1% to 10%；Second step, can drop
On solution native envelope material parcel granular urea outer surface after preheat, then to urea granules surface successively spray metal from
The sub- aqueous solution, the polyphenol compound aqueous solution, alkaline solution and binder aqueous solution, aqueous metallic ions, Polyphenols chemical combination
It is afterwards once one group of spraying operation that the thing aqueous solution, alkaline solution and binder aqueous solution have been sprayed respectively, each every kind of solution
Quantity for spray be 2ml to 10ml, 5 groups to 50 groups spraying operations are carried out altogether, between every group of spraying operation interval time be 1s extremely
10min；3rd step, is dried cooling and obtains ligand complex coating type urea containing trace-element slow-release after the completion of spraying operation.
7. ligand complex coating type according to claim 6 contains the preparation method of trace-element slow-release urea, and its feature exists
In degradable natural coated fertilizer be polyphenol compound or starch or cellulose；Or/and, adhesive is polyvinyl alcohol；Or/
With metal ion is one or more of iron, zinc, copper, manganese.
8. the ligand complex coating type according to claim 6 or 7 contains the preparation method of trace-element slow-release urea, its feature
It is polyphenol compound for tannic acid, Tea Polyphenols, epicatechin, epicatechin gallate, epigallocatechin, table do not have
One or more of infanticide catechin and gallate.
9. the ligand complex coating type according to claim 6 or 7 contains the preparation method of trace-element slow-release urea, its feature
Be aqueous metallic ions, the polyphenol compound aqueous solution, alkaline solution and binder aqueous solution are respectively charged into it is different
Spraying operation is carried out in sprayer unit.
10. ligand complex coating type according to claim 8 contains the preparation method of trace-element slow-release urea, and its feature exists
In aqueous metallic ions, the polyphenol compound aqueous solution, alkaline solution and binder aqueous solution are respectively charged into different sprays
Spraying operation is carried out in mist device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710021930.9A CN106748250B (en) | 2017-01-12 | 2017-01-12 | Coordination complex coated slow-release urea containing trace elements and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710021930.9A CN106748250B (en) | 2017-01-12 | 2017-01-12 | Coordination complex coated slow-release urea containing trace elements and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106748250A true CN106748250A (en) | 2017-05-31 |
| CN106748250B CN106748250B (en) | 2022-08-23 |
Family
ID=58947592
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710021930.9A Active CN106748250B (en) | 2017-01-12 | 2017-01-12 | Coordination complex coated slow-release urea containing trace elements and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106748250B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108017478A (en) * | 2017-11-06 | 2018-05-11 | 石河子大学 | A kind of nitrification inhibitor of poly- polyphenol cladding and preparation method and application |
| CN108395346A (en) * | 2018-04-08 | 2018-08-14 | 共同科技开发有限公司 | It is a kind of using Fructus Pistaciae Verae shell as organic fertilizer of primary raw material and its preparation method and application |
| CN108516889A (en) * | 2018-04-28 | 2018-09-11 | 陈建峰 | A kind of coating agent and preparation method thereof |
| CN108997060A (en) * | 2018-09-12 | 2018-12-14 | 石河子大学 | Coated slow release fertilizer and its preparation method and application based on microelement in humic-acid kind material chelating |
| CN112209764A (en) * | 2019-07-12 | 2021-01-12 | 石河子大学 | Hydrophobic modified polyphenol coated fertilizer and preparation method thereof |
| CN113024315A (en) * | 2021-04-19 | 2021-06-25 | 福州大学 | Coated chelated controlled-release fertilizer and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56124321A (en) * | 1980-03-06 | 1981-09-30 | Kazuo Kimura | Artificial culture medium constituting material for cultivating plant |
| CN103626592A (en) * | 2013-12-13 | 2014-03-12 | 福建师范大学 | Preparation of coating agent and application of coating agent to sustained-release fertilizer |
| CN105001001A (en) * | 2015-08-04 | 2015-10-28 | 中国科学院南京土壤研究所 | Modified water-based polyacrylate coated controlled release fertilizer with iron ions and polyphenol chelate and preparation method thereof |
| CN106146136A (en) * | 2016-04-16 | 2016-11-23 | 石河子大学 | Slow/controlled release coated carbamide containing trace element prepared by a kind of mechanical force and chemical |
-
2017
- 2017-01-12 CN CN201710021930.9A patent/CN106748250B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56124321A (en) * | 1980-03-06 | 1981-09-30 | Kazuo Kimura | Artificial culture medium constituting material for cultivating plant |
| CN103626592A (en) * | 2013-12-13 | 2014-03-12 | 福建师范大学 | Preparation of coating agent and application of coating agent to sustained-release fertilizer |
| CN105001001A (en) * | 2015-08-04 | 2015-10-28 | 中国科学院南京土壤研究所 | Modified water-based polyacrylate coated controlled release fertilizer with iron ions and polyphenol chelate and preparation method thereof |
| CN106146136A (en) * | 2016-04-16 | 2016-11-23 | 石河子大学 | Slow/controlled release coated carbamide containing trace element prepared by a kind of mechanical force and chemical |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108017478A (en) * | 2017-11-06 | 2018-05-11 | 石河子大学 | A kind of nitrification inhibitor of poly- polyphenol cladding and preparation method and application |
| CN108395346A (en) * | 2018-04-08 | 2018-08-14 | 共同科技开发有限公司 | It is a kind of using Fructus Pistaciae Verae shell as organic fertilizer of primary raw material and its preparation method and application |
| CN108516889A (en) * | 2018-04-28 | 2018-09-11 | 陈建峰 | A kind of coating agent and preparation method thereof |
| CN108997060A (en) * | 2018-09-12 | 2018-12-14 | 石河子大学 | Coated slow release fertilizer and its preparation method and application based on microelement in humic-acid kind material chelating |
| CN112209764A (en) * | 2019-07-12 | 2021-01-12 | 石河子大学 | Hydrophobic modified polyphenol coated fertilizer and preparation method thereof |
| CN112209764B (en) * | 2019-07-12 | 2022-06-10 | 石河子大学 | Hydrophobic modified polyphenol coated fertilizer and preparation method thereof |
| CN113024315A (en) * | 2021-04-19 | 2021-06-25 | 福州大学 | Coated chelated controlled-release fertilizer and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106748250B (en) | 2022-08-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106748250A (en) | Ligand complex coating type urea containing trace-element slow-release and preparation method thereof | |
| CN102584471B (en) | Organosilicone water soluble long-acting compound fertilizer and preparation method thereof | |
| CN103880558A (en) | Salt-resistant soil-improving slow release fertilizer and preparation method thereof | |
| CN104163728A (en) | Double-coated long-acting controlled-release fertilizer and preparation method thereof | |
| CN104130056A (en) | pH-sensitive coated slow-release phosphate fertilizer and preparation method thereof | |
| CN102557810A (en) | Degradable slow-release fertilizer coating agent | |
| CN104355911A (en) | Compound fertilizer for saline-alkaline lands and preparation method thereof | |
| CN102875235A (en) | Coated synergistic nitrogen fertilizer composition and preparation method thereof | |
| CN101182267A (en) | Organic-inorganic compound fertilizer integument liquid and method for manufacturing the same | |
| CN106631516A (en) | Oxidation cross-linking film coated slow-release urea containing trace elements and preparation method thereof | |
| CN108424235A (en) | Coating type organic nitrates ammonium calcium granulated fertilizer and preparation method thereof | |
| CN102653503B (en) | Double-envelope composite fertilizer production method | |
| CN104230602B (en) | A kind of gel-type salt-affected soil conditioning fertilizer and preparation method thereof | |
| CN101759490B (en) | Slowly-controlled-release diammonium phosphate | |
| CN108997060B (en) | Coated slow-release fertilizer chelating medium and trace elements based on humic acid materials and preparation method and application thereof | |
| CN104163727A (en) | Polyglutamic-acid-containing resin-coated controlled-release fertilizer and preparation method thereof | |
| CN107652049A (en) | A kind of ammonium magnesium phosphate coated fertilizer and preparation method thereof | |
| CN112209764B (en) | Hydrophobic modified polyphenol coated fertilizer and preparation method thereof | |
| CN102701865B (en) | Synergistic additive of chemical fertilizer and production method of synergistic additive | |
| CN112645763A (en) | Slow-release potassium humate fertilizer and preparation method thereof | |
| CN115286456B (en) | Preparation method and application of water-retention slow-release compound fertilizer | |
| CN102617254B (en) | Emulsion in water for enhancing efficacy of nitrogen fertilizer, and application of emulsion in water | |
| CN104761389A (en) | Marine organism polysaccharide double-film slow-release fertilizer and preparation method thereof | |
| CN104725135A (en) | Illite coating and application thereof | |
| CN109896888A (en) | A kind of moisture-retention sustained release and release control fertilizer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |