CN106977284A - High-tower granulation urea base composite fertilizer anti-caking cream and urea-base compound fertilizer - Google Patents
High-tower granulation urea base composite fertilizer anti-caking cream and urea-base compound fertilizer Download PDFInfo
- Publication number
- CN106977284A CN106977284A CN201710231932.0A CN201710231932A CN106977284A CN 106977284 A CN106977284 A CN 106977284A CN 201710231932 A CN201710231932 A CN 201710231932A CN 106977284 A CN106977284 A CN 106977284A
- Authority
- CN
- China
- Prior art keywords
- caking
- fertilizer
- cream
- urea
- tower granulation
- 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.)
- Pending
Links
Classifications
-
- 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
- C05G3/20—Mixtures of one or more fertilisers with additives not having a specially fertilising activity for preventing the fertilisers being reduced to powder; Anti-dusting additives
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05C—NITROGENOUS FERTILISERS
- C05C9/00—Fertilisers containing urea or urea compounds
- C05C9/005—Post-treatment
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Pest Control & Pesticides (AREA)
- Fertilizers (AREA)
Abstract
The invention discloses a kind of high-tower granulation urea base composite fertilizer anti-caking cream, including：Fatty amine 2~5%, stearic acid 15~20%, oleic acid 15~20%, C6~C10 low-carbon alcohols 20~25%, edible oil and fat 40~50%.Invention additionally discloses the urea-base compound fertilizer obtained using above-mentioned high-tower granulation urea base composite fertilizer anti-caking cream as anti-caking additive and urea-base compound fertilizer raw material high-tower granulation.The high-tower granulation urea base composite fertilizer anti-caking paste composition natural degradable of the present invention, compound fertilizer from caking can be more effectively prevented after use, granule strength can be improved simultaneously, suppress effect of dust, and make the apparent graininess of complex fertilizer product more uniform, smoothness more preferably, richer glossiness；And anti-caking cream, by being added in SiC p surface plating, can equably apply exhibition into the pin hole of the surface of fertilizer and high tower fertilizer in production of compound fertilizer back segment, complex fertilizer product long-time place and transhipment in occur without hardened, and do not influence to leach.
Description
Technical field
The present invention relates to urine base manure feed additives technical field, more particularly to a kind of high-tower granulation urea base composite fertilizer anti-caking
Cream and urea-base compound fertilizer.
Background technology
Fertilizer can be lumpd in production process and transport handling process due to moisture absorption, the on the one hand meeting of the fertilizer after caking
Cause the bale broken in storage and transportation, blocking shower nozzle is on the other hand easily caused during fertilising, influence is applied etc.
Deng.Comparatively speaking, the difference such as urea-based compound fertilizer and nitro fertilizer, urea-base compound fertilizer is nitrogen source and ammonium chloride, chlorine using urea
Change the high concentration N-P-K multiple elements design that the base fertilizers such as potassium, potassium nitrate, coarse whiting, phosphorus ammonium carry out secondary operation preparation as raw material
Fertilizer, its molecule contains substantial amounts of O, N, H atom, it is easier to H2O molecules formation " hydrogen bond chain ", and the molecule of this " hydrogen bond chain "
Intermolecular forces more promote the mutual bonding between urea-base compound fertilizer；And there is urea itself stronger hygroscopicity easily to be formed
Lattice compound, causes urea-base compound fertilizer to be easy to the moisture absorption in preparation and storage and produces caking and the phenomenon of efflorescence.
And the method for solving above-mentioned urine base fertilizer agglomeration at present, examined mostly from inert material coating or machinery oil direction
Consider；Often suppress the phenomenon of caking using anti-compaction powder or anti-compaction oil, on the one hand anti-compaction powder or anti-compaction oil can eliminate
Intergranular Van der Waals force, on the other hand can be coated to fertiliser granulates surface, reduce the intermolecular adhesion of fertiliser granulates；From
And reduce the caking capacity of fertiliser granulates.But wherein, modified inertia anti-caking powder is right in use, addition is generally large
Product quality can be affected greatly, and fertiliser granulates intensity declines, and dust phenomenon is serious during operation, and anti-caking ability owes to hold
Long, powder will be gone out and change colour by generally going through particle surface after the placement of 1~2 month；And oil-soluble anti-compaction oil is in use
It is difficult to degrade in soil, secondary pollution can be caused.
The content of the invention
It is a primary object of the present invention to provide a kind of high-tower granulation urea base composite fertilizer anti-caking cream, it is intended to lift high tower and make
Grain urea-base compound fertilizer is producing the preventing blocking effect in preparing and placing and transport for a long time, and reduces the difficult drop after fertilizer application
Solution pollution.
To achieve the above object, high-tower granulation urea base composite fertilizer anti-caking cream of the invention, including：Fatty amine 2~5%,
Stearic acid 15~20%, oleic acid 15~20%, C6~C10 low-carbon alcohols 20~25%, edible oil and fat 40~50%.
On the basis of above-mentioned high-tower granulation urea base composite fertilizer anti-caking cream, the present invention further also proposes to use above-mentioned high tower
The urea-base compound fertilizer that granulation urea-based composite fertilizer's anti-caking cream is obtained by high-tower granulation.
The high-tower granulation urea base composite fertilizer anti-caking paste composition natural degradable of the present invention, can more effectively be prevented after use
Compound fertilizer from caking, while can improve granule strength, suppress effect of dust, and makes the apparent graininess of complex fertilizer product more equal
Even, smoothness is more preferable, richer glossiness.Meanwhile, anti-caking cream in production of compound fertilizer back segment by being added in SiC p surface plating,
Exhibition can equably be applied into the pin hole of the surface of fertilizer and high tower fertilizer, the purpose for suppressing caking is reached.Placed simultaneously in long-time
It is hardened with being occurred without in transhipment, and do not influence to leach.
Embodiment
The realization, functional characteristics and advantage of the object of the invention will be described further in conjunction with the embodiments.It should be appreciated that this
The specific embodiment of place description is not intended to limit the present invention only to explain the present invention.
The present invention provides a kind of high-tower granulation urea base composite fertilizer anti-caking cream, includes the following composition of each mass fraction：Fat
Fat amine 2~5%, stearic acid 15~20%, oleic acid 15~20%, C6~C10 low-carbon alcohols 20~25%, edible oil and fat 40~
50%；Above each component sum is 100%.
In the above-mentioned high-tower granulation urea base composite fertilizer anti-caking cream of the present invention, fatty amine is that carbon number is 8~22 fat
Primary amine or fatty primary secondary amine, itself are a kind of cationic surfactants, hydrophile amino end and long-chain with positive electricity amine it is hydrophobic
End；It is used in after urea-base compound fertilizer, first, the water-wet side of its positive electricity amine is easy to inhale with the affine selection orientation that formed of urine base manure material
Attached, then chain hydrophobic end makes fertilizer surface be changed into hydrophobicity on composite fertilizer surface, becomes fertilizer interface state property
Change, prevent fertilizer and the exchange of moisture in air.Secondly, urea knot of the fatty amine absorption in fertilizer during prepared by fertilizer
On brilliant crystal face, change the habit of crystallization, efficiently control the formation and growth of nucleus, simultaneously effective prevent between crystal
Gluing.3rd, the water-wet side of fatty amine can be towards bibulous component in urine base manure material, so as to further be distributed in preparation
In on each alternate interface, salt is set to be not easy to particle surface and contact zone, so as to reduce fertiliser granulates adhesiveness.Wherein, it is based on
In affinity binding ability and using effect, the fatty amine in the step is preferred to use carbon number for 8~22 fat primary amines, just
Electroaffinity is strong compared to secondary amine, is more conducive to affine with urine base water suction.
Further using stearic acid, oleic acid, edible oil and fat this several degradable oiliness in the anti-caking cream of the present invention
Composition is as mainly anti-caking medium, and its own is also surfactant, is used in after fertiliser granulates, can be to fertilizer
Grain is coated, and the coating formed after cladding is first from spatially, and the contact between effective barrier fertiliser granulates is hindered
Particle aggregation lumps.Further after cladding, fertiliser granulates surface Free water can effectively be separated, so as to reduce chemical anti-
Medium required for should and recrystallizing；And fertilizer surface pore can also be further blocked after cladding, fertilizer is prevented
Grain internal moisture drops low-moisture surface and gathers and suppress caking to the migration on surface.Using above-mentioned oleic acid, edible oil and fat conduct
Main medium make it is overall be rendered as Flowing liquid form, can be in order to spraying during prepared by fertilizer high-tower granulation.
Wherein, the product after stearic acid, oleic acid can be hydrolyzed using recycled wood materials is separated through rectifying to be made.Edible oil
Fat uses palm oil, coconut oil, frying oil, soybean oil one or more mixtures therein.Compared to mineral oil and paraffin etc.
Oils surface active ingredient, more easily degrades.
The oil component of above-mentioned liquid is in fertiliser granulates granulation process, and the oily anti-skinning block cream after sprinkling heating atomization is attached
And will not be cooled and solidified at once on the surface of fertilizer, because curing rate can not be such that oily anti-skinning block cream is finally uniformly molded more slowly
The surface for being attached to fertilizer.Therefore, supplement adds C6~C10 low-carbon alcohols, one in anti-caking cream on the basis of mentioned component
Aspect is that with the aliphatic acid in oil/oleic acid esterification reversible reaction can occur for low-carbon alcohols, can be to help anti-caking cream in fertilizer surface
The quality of film-forming；And esterification is also being carried out on the surface of fertilizer, can also further suppress the caking of fertilizer.
In implementation, C6~C10 of above-mentioned use of the invention low-carbon alcohols can be mannitol, D-sorbite, nonyl alcohol it is therein a kind of or
A variety of mixtures.Be based further on functional groups alcoholic extract hydroxyl group and role, C6~C10 is used in implementation of the invention
Low-carbon alcohols preferably can use compare with more functional alcohol hydroxyls polyalcohol.Product can be adjusted after addition to exist
Viscosity, compactness, intensity and the toughness of the oil film formed after fertilizer surface parcel, so as to lift anti-caking product effect purpose.
, can be more effective after use using the high-tower granulation urea base composite fertilizer anti-caking paste composition natural degradable of the present invention
Compound fertilizer from caking is prevented, while granule strength can be improved, suppress effect of dust, and makes the apparent graininess of complex fertilizer product more
Uniformly, smoothness more preferably, richer glossiness.Meanwhile, anti-caking cream is in production of compound fertilizer back segment by adding in SiC p surface plating
Plus, exhibition can be equably applied into the pin hole of the surface of fertilizer and high tower fertilizer, reach the purpose for suppressing caking.And product is when long
Between place and transhipment in occur without hardened, and do not influence to leach.
The preparation process of the above-mentioned high-tower granulation urea base composite fertilizer anti-caking cream of the present invention is also very simple, will it is above-mentioned respectively into
Divide after being mixed under the conditions of 40~50 DEG C and then stir, the high-tower granulation urea base composite fertilizer that the present invention is obtained after cooling is anti-
Lump cream product.The above-mentioned anti-caking cream of the present invention is easy to maintain for lotion at normal temperatures, and highest need to be only heated to when using
50 DEG C can have good mobility, be then directly used for high-tower granulation.
On the basis of above-mentioned embodiment, the present invention further also proposes a kind of using above-mentioned high-tower granulation urea-based compound
The urea-base compound fertilizer that fertile anti-caking cream is obtained by high-tower granulation.The back segment in urea-base compound fertilizer high-tower granulation is used in implementation
In, above-mentioned high-tower granulation urea base composite fertilizer anti-caking cream is added by way of whitewashing, then 10~20 points of rotary drum coating heating
Clock, then discharging can obtain the urea-base compound fertilizer of the present invention.Certainly it is generally anti-during preparation according to the situation of caking
Lump cream consumption for urea-base compound fertilizer particle weight 1.5~2.5 ‰ between.The urea-base compound fertilizer of the present invention, in preparation
During fertiliser granulates are coated using above-mentioned high-tower granulation urea base composite fertilizer anti-caking cream, fertilizer production have lower caking
Rate, and the apparent graininess more uniform, smoothness of product is more preferable, richer glossiness；Beneficial to long-term preservation.
To make the details of above-mentioned high-tower granulation urea base composite fertilizer anti-caking cream of the invention be more conducive to those skilled in the art's
Understand and implement, and the progressive effect of urea-base compound fertilizer prepared by prominent this case, come pair below by way of specific embodiment
The above of this case is illustrated.
Embodiment 1
S10, in the present embodiment 1, raw material is obtained according to the ratio of following weight：2 parts of tetradecy lamine, 20 parts of stearic acid, oil
18 parts of acid, 20 parts of mannitol, 40 parts of soybean oil；These raw materials are mixed in proportion, stirring reaction 20min after 40 DEG C is heated to,
Composite fertilizer's anti-caking cream is produced after reaction.
S20, the anti-caking cream of the present embodiment, than the consumption for 2 ‰, is combined according to urea-base compound fertilizer weight in urine base
In the roller of the high-tower granulation of fertilizer, to fertiliser granulates rotary drum coating heating 10~20 minutes.Then it is the present embodiment after discharging
The urea-base compound fertilizer of preparation.
Embodiment 2
S10, in the present embodiment 2, raw material is obtained according to the ratio of following weight：5 parts of cetylamine, 15 parts of stearic acid, oil
15 parts of acid, 20 parts of D-sorbite, 45 parts of frying oil；These raw materials are mixed in proportion, 50 DEG C of stirring reactions are heated to
Composite fertilizer's anti-caking cream is produced after 20min, reaction.
S20, the anti-caking cream of the present embodiment, than the consumption for 2 ‰, is combined according to urea-base compound fertilizer weight in urine base
In the roller of the high-tower granulation of fertilizer, to fertiliser granulates rotary drum coating heating 10~20 minutes.Then it is the present embodiment after discharging
The urea-base compound fertilizer of preparation.
Embodiment 3
S10, in the present embodiment 3, raw material is obtained according to the ratio of following weight：2 parts of erucyl amide, 15 parts of stearic acid,
18 parts of oleic acid, 15 parts of nonyl alcohol, 50 parts of coconut oil；These raw materials are mixed in proportion, 45 DEG C of stirring reaction 20min are heated to, instead
Should after produce composite fertilizer's anti-caking cream.
S20, the anti-caking cream of the present embodiment, than the consumption for 2 ‰, is combined according to urea-base compound fertilizer weight in urine base
In the roller of the high-tower granulation of fertilizer, to fertiliser granulates rotary drum coating heating 10~20 minutes.Then it is the present embodiment after discharging
The urea-base compound fertilizer of preparation.
Urea-base compound fertilizer prepared by above-described embodiment carries out the statistics of caking situation, and the bulk fertilizer wherein lumpd is taken out
Weigh, and investigate the volume size of caking, its weight of luming is as follows：
| Fall cladding Hefei quality | Caking amount | Caking rate | |
| Embodiment 1 | 50kg | 0.80kg | 1.0% |
| Embodiment 2 | 50kg | 1.00kg | 2.0% |
| Embodiment 3 | 50kg | 0.95kg | 1.9% |
Meanwhile, the urea-base compound fertilizer product that the present invention is prepared is placed in storehouse and stored, respectively in the different time
Interior timing detection fertilizer discoloration, loose situation.In the result of detection, fertiliser granulates can keep loose substantially in 5~7 months
State, compared to common anti-compaction powder or anti-compaction oil 3 months after show powder caking effect will be more preferably.And fertilizer product
Particle with smooth surface, even compact, fertilizer appearance is good.
The preferred embodiments of the present invention are these are only, are not intended to limit the scope of the invention, it is every to utilize this hair
Equivalent structure or equivalent flow conversion that bright description is made, or directly or indirectly it is used in other related technology necks
Domain, is included within the scope of the present invention.
Claims (9)
1. a kind of high-tower granulation urea base composite fertilizer anti-caking cream, it is characterised in that the following composition including each mass fraction：Fat
Amine 2~5%, stearic acid 15~20%, oleic acid 15~20%, C6~C10 low-carbon alcohols 20~25%, edible oil and fat 40~
50%.
2. high-tower granulation urea base composite fertilizer anti-caking cream as claimed in claim 1, it is characterised in that the fatty amine is that carbon is former
Subnumber is 8~22 fat primary amines.
3. high-tower granulation urea base composite fertilizer anti-caking cream as claimed in claim 1 or 2, it is characterised in that the edible oil and fat
For palm oil, coconut oil, frying oil, soybean oil one or more therein.
4. high-tower granulation urea base composite fertilizer anti-caking cream as claimed in claim 1 or 2, it is characterised in that the C6~C10's
Low-carbon alcohols are polyalcohol.
5. high-tower granulation urea base composite fertilizer anti-caking cream as claimed in claim 1 or 2, it is characterised in that the C6~C10's
Low-carbon alcohols are mannitol, D-sorbite, nonyl alcohol one or more therein.
6. high-tower granulation urea base composite fertilizer anti-caking cream as claimed in claim 1, it is characterised in that including each mass fraction
Following composition：Tetradecy lamine 2%, stearic acid 20%, oleic acid 18%, mannitol 20%, soybean oil 40%.
7. high-tower granulation urea base composite fertilizer anti-caking cream as claimed in claim 1, it is characterised in that including each mass fraction
Following composition：Cetylamine 5%, stearic acid 15%, oleic acid 15%, D-sorbite 20%, frying oil 45%.
8. high-tower granulation urea base composite fertilizer anti-caking cream as claimed in claim 1, it is characterised in that including each mass fraction
Following composition：Erucyl amide 2%, stearic acid 15%, oleic acid 18%, nonyl alcohol 15%, coconut oil 50%.
9. a kind of urea-base compound fertilizer, it is characterised in that include high-tower granulation urea-based multiple described in any one of claim 1 to 8
Hefei anti-caking cream.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710231932.0A CN106977284A (en) | 2017-04-11 | 2017-04-11 | High-tower granulation urea base composite fertilizer anti-caking cream and urea-base compound fertilizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710231932.0A CN106977284A (en) | 2017-04-11 | 2017-04-11 | High-tower granulation urea base composite fertilizer anti-caking cream and urea-base compound fertilizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106977284A true CN106977284A (en) | 2017-07-25 |
Family
ID=59343884
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710231932.0A Pending CN106977284A (en) | 2017-04-11 | 2017-04-11 | High-tower granulation urea base composite fertilizer anti-caking cream and urea-base compound fertilizer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106977284A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110128215A (en) * | 2019-06-19 | 2019-08-16 | 华南农业大学 | A kind of anticaking agent and preparation method thereof suitable for pulvis water-soluble fertilizer |
| WO2020069561A1 (en) * | 2018-10-02 | 2020-04-09 | Crommelin Agricoatings Pty Ltd | Composition and method for treating urea |
| CN111574292A (en) * | 2020-04-16 | 2020-08-25 | 中国-阿拉伯化肥有限公司 | Anti-caking agent for oily urea-based compound fertilizer and preparation method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1342628A (en) * | 2001-10-26 | 2002-04-03 | 蔡剑斌 | Anti-blocking loosening agent for preparing loose composite fertilizer with long storage period |
| CN1467186A (en) * | 2002-07-09 | 2004-01-14 | 邵建华 | Environment-friendly type solvent-free fertilizer anti-caking agent |
| US20080171659A1 (en) * | 2007-01-17 | 2008-07-17 | Fersch Kenneth E | Insecticidally Coated Fertilizer Solids |
| CN101985411A (en) * | 2010-11-02 | 2011-03-16 | 湖北富邦化工科技有限公司 | Special environmental-friendly anti-blocking agent for producing urea-based compound fertilizer by high-tower granulation and preparation method thereof |
| CN102070373A (en) * | 2010-12-02 | 2011-05-25 | 福建达安能源实业有限责任公司 | Preparation method of naturally-degradable compound fertilizer anti-blocking agent and application thereof |
| CN104355819A (en) * | 2014-10-30 | 2015-02-18 | 郭武侠 | Degradable compound fertilizer anti-blocking agent, preparation method and application thereof |
-
2017
- 2017-04-11 CN CN201710231932.0A patent/CN106977284A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1342628A (en) * | 2001-10-26 | 2002-04-03 | 蔡剑斌 | Anti-blocking loosening agent for preparing loose composite fertilizer with long storage period |
| CN1467186A (en) * | 2002-07-09 | 2004-01-14 | 邵建华 | Environment-friendly type solvent-free fertilizer anti-caking agent |
| US20080171659A1 (en) * | 2007-01-17 | 2008-07-17 | Fersch Kenneth E | Insecticidally Coated Fertilizer Solids |
| CN101985411A (en) * | 2010-11-02 | 2011-03-16 | 湖北富邦化工科技有限公司 | Special environmental-friendly anti-blocking agent for producing urea-based compound fertilizer by high-tower granulation and preparation method thereof |
| CN102070373A (en) * | 2010-12-02 | 2011-05-25 | 福建达安能源实业有限责任公司 | Preparation method of naturally-degradable compound fertilizer anti-blocking agent and application thereof |
| CN104355819A (en) * | 2014-10-30 | 2015-02-18 | 郭武侠 | Degradable compound fertilizer anti-blocking agent, preparation method and application thereof |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020069561A1 (en) * | 2018-10-02 | 2020-04-09 | Crommelin Agricoatings Pty Ltd | Composition and method for treating urea |
| AU2019352497B2 (en) * | 2018-10-02 | 2022-01-20 | Crommelin Agricoatings Pty Ltd | Composition and method for treating urea |
| US11267783B2 (en) | 2018-10-02 | 2022-03-08 | Crommelin Agricoatings Pty Ltd | Composition and method for treating urea |
| CN110128215A (en) * | 2019-06-19 | 2019-08-16 | 华南农业大学 | A kind of anticaking agent and preparation method thereof suitable for pulvis water-soluble fertilizer |
| CN111574292A (en) * | 2020-04-16 | 2020-08-25 | 中国-阿拉伯化肥有限公司 | Anti-caking agent for oily urea-based compound fertilizer and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100586903C (en) | Slow release long-acting organic inorganic complex blending fertilizer | |
| CN106977284A (en) | High-tower granulation urea base composite fertilizer anti-caking cream and urea-base compound fertilizer | |
| CN107641045A (en) | A kind of composite synergist and its application containing polyglutamic acid and potassium fulvate | |
| CN101580444A (en) | Coated slow-release urea containing double inhibitors and preparation method thereof | |
| CN105819943A (en) | Microbial organic fertilizer and preparation method thereof | |
| CN102731208B (en) | Special composite particle slow-release fertilizer for rape, and preparation method thereof | |
| CN103193546A (en) | Special double-membrane inorganic fertilizer for peanuts | |
| CN107245001A (en) | A kind of functional slow-release fertilizer and its production method | |
| CN104211479A (en) | Humic acid activated type compound fertilizer and production method thereof | |
| CN103804102A (en) | Synergic composite nitrogen fertilizer and preparation method thereof | |
| WO2017206743A1 (en) | Method for rapid manufacturing of novel micronutrient-containing urea | |
| US20190152870A1 (en) | Coated inorganic materials and methods for forming the coated inorganic materials | |
| WO2014101269A1 (en) | Method for preparing special slow-release long-acting compound fertilizer for paddy rice | |
| CN106977285A (en) | Composite fertilizer's anti-caking cream and composite fertilizer | |
| CN107522535A (en) | Compound fertilizer anticaking agent and composite fertilizer with slow releasing function | |
| CN103524272A (en) | High-tower long-acting compound fertilizer and preparation method thereof | |
| CN112142538A (en) | Application of 2-cyclopentenone as synergist in nitrogen-containing fertilizer | |
| CN102976857B (en) | Synergistic nitrogenous fertilizer and preparation method thereof | |
| CN109485505A (en) | A kind of poly- semicarbazide element compound fertilizer | |
| CN106278764A (en) | A kind of method of compound fertilizer prepared containing microcapsule-type fertilizer synergist and prepared compound fertilizer thereof | |
| CN109265224A (en) | A kind of Special fertilizer for wheat and preparation method thereof | |
| CN107141051A (en) | Nitro-compound fertilizer anti-caking cream and nitro-compound fertilizer | |
| CN100575317C (en) | High-nitrogen slow released agglomeration resistant compound fertilizer and production method thereof | |
| CN108164348A (en) | It is a kind of to be coated slow, release and release control fertilizer and preparation method thereof | |
| CN114163280A (en) | 28N nitro-sulfur-based compound fertilizer and preparation method thereof |
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 | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170725 |