CN106316656A - Sugar cane water retention slow release fertilizer and preparation method thereof - Google Patents
Sugar cane water retention slow release fertilizer and preparation method thereof Download PDFInfo
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- CN106316656A CN106316656A CN201610870013.3A CN201610870013A CN106316656A CN 106316656 A CN106316656 A CN 106316656A CN 201610870013 A CN201610870013 A CN 201610870013A CN 106316656 A CN106316656 A CN 106316656A
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05B—PHOSPHATIC FERTILISERS
- C05B1/00—Superphosphates, i.e. fertilisers produced by reacting rock or bone phosphates with sulfuric or phosphoric acid in such amounts and concentrations as to yield solid products directly
- C05B1/02—Superphosphates
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G5/00—Fertilisers characterised by their form
- C05G5/30—Layered or coated, e.g. dust-preventing coatings
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Pest Control & Pesticides (AREA)
- Fertilizers (AREA)
Abstract
The invention discloses a sugar cane water retention slow release fertilizer, which is prepared from the following ingredients and raw materials in parts by weight: 30 to 50 parts of ammonium sulfate, 10 to 30 parts of potassium chloride, 20 to 40 parts of calcium superphosphate, 40 to 60 parts of metakaolin, 1 to 5 parts of bonding agents, 3 to 23 parts of crude paraffin and 30 to 40 parts of water retention agents. A preparation method of the sugar cane water retention slow release fertilizer comprises the following steps of (1) taking the following ingredients and raw materials in parts by weight; (2) spraying a mixture of the metakaolin and the bonding agents; then, spraying molten crude paraffin; (3) spraying the mixture of the metakaolin and the bonding agents again into substances obtained after the molten crude paraffin spraying in the step (2); then, adding the water retention agents; performing uniform mixing and drying and obtaining the sugar cane water retention slow release fertilizer. The sugar cane water retention slow release fertilizer has the advantages that the fertilizer effect is good; the fertilizer release rate in a certain period of time is higher; the water retention performance is greatly improved; the application of mountainous region planted sugar cane is facilitated.
Description
Technical field
The present invention relates to a kind of fertilizer and preparation method thereof, particularly to a kind of Caulis Sacchari sinensis the fertilizer of retaining water and releasing nutrients slowly and preparation side thereof
Method.
Background technology
Guangxi is one of China or even the area that grows cane of optimum, the whole world, and whole district's major part soil is positioned at the tropic of cancer
On the south, it is located in south subtropics monsoon climate, heat and rainfall abundant, and sugar cane growth and rain heat same season, therefore Guangxi
Cane planting has advantageous geography and climatic superiority.Cane planting be mainly distributed on Chong Ning, Nanning, Liuzhou, guest, hundred
The ground such as color, rivers and ponds, Qiezhou, the North Sea, Port of Fangcheng, wherein Chongzuo, Nanning, guest, Liuzhou are advantage producing region, and sugarcane acreage accounts for
The 61.7% of the whole district.Caulis Sacchari sinensis is the agriculture advantage industry in Guangxi, and its yield is the most surely the first in the nation, but owing to kind is single,
The situations such as cultivation technique falls behind, and the reason such as pest and disease damage and natural disaster exists yield the highest for a long time, bad economic results, with state
Border average level there is also a certain distance.
Arid is the main limiting factor affecting Guangxi main producing region sugarcane production, according to analysis, and Guangxi each DIYU drought
Evil the most all has generation, but with spring, season in autumn two arid, especially serious autumn drought is the most obvious to Sugarcane Industry Influence of production.
Suffering from drought seriously in great Bu Zhe district, Guangxi, Sugarcane Leaves generally dries up, and some growing points are dead, and sugarcane stem generally occurs the Pu heart, hollow existing
As.The occurring of spring arid mainly affect spring planting Caulis Sacchari sinensis wholely, sow, emerge, and the broken ridge pine root and stem of certain plants of ratoon sugarcane,
Strain, also has influence on the growth of Caulis Sacchari sinensis, tiller simultaneously, often results in the disconnected ridge that is short of seedling, unit are Caulis Sacchari sinensis productive tiller minimizing etc., finally
Have influence on into factory's raw material sugarcane yield and sucrose yield.
Slow release fertilizer production technology is that solution chemical fertilizer utilization ratio is low and pollution by chemical fertilizer problem opens new thinking, and water conservation delays
Release fertilizer is one of important directions of following Fertilizer development, is that slow release method is functionally compound unified with high-hydroscopicity (SAR)
Product.The Water-retaining slow-release fertilizer that research and development has water retaining function, nutrient can slowly discharge, accounts for the China of 3/4 for nonirrigated farmland
Agricultural has significance especially.High-hydroscopicity is that one develops rapidly and the most promising novel macromolecule water absorbent material, because it has
The water suction, water conservation and the carrier as slow release fertilizer that have excellence can suppress the performances such as nitrogen and phosphorus loss, have been applied to existing
For agromelioration.More because of mountain region, Guangxi at present, the field that fertility is stronger is all used for Planting Crops, therefore, Guangxi kind
Plantiose sugarcane is mostly in mountain region, and mountain region fertility is barrenr, and mountain region is not easy water conservation, causes mountain planting Caulis Sacchari sinensis productivity relatively low, city
The fertilizer of retaining water and releasing nutrients slowly conventional on field is not suitable for the use of mountain planting Caulis Sacchari sinensis, therefore, needs one badly and is applicable to mountain planting
The fertilizer of retaining water and releasing nutrients slowly of Caulis Sacchari sinensis.
The information being disclosed in this background section is merely intended to increase the understanding of the general background to the present invention, and should not
When being considered to recognize or imply in any form this information structure prior art well known to persons skilled in the art.
Summary of the invention
The present invention is directed to the fertilizer of retaining water and releasing nutrients slowly of the prior art fertilizer efficiency when for mountain planting Caulis Sacchari sinensis inconspicuous, water conservation is imitated
The most unconspicuous problem, a kind of Caulis Sacchari sinensis the fertilizer of retaining water and releasing nutrients slowly of invention, it is intended to obtain a kind of when mountain planting Caulis Sacchari sinensis fertilizer efficiency more preferably,
The more preferable fertilizer of Water-saving effect.
For achieving the above object, the technical scheme that the present invention provides is as follows:
A kind of Caulis Sacchari sinensis the fertilizer of retaining water and releasing nutrients slowly, comprises following components raw material according to ratio of weight and number: ammonium sulfate 30～50 parts, chlorination
Potassium 10～30 parts, calcium superphosphate 20～40 parts, metakaolin 40～60 parts, adhesive 1～5 parts, scale wax 3～23 parts and water conservation
Agent 30～40 parts.
Wherein, described adhesive is attapulgite clay powder.
Wherein, described water-retaining agent is polyacrylamide.
Wherein, described polyacrylamide particle diameter is 0.05～0.1nm.
Wherein, described metakaolin is that Kaolin keeps temperature to be 700～800 DEG C of drying 1～3h, and then cooling grinds
Honed 400～500 mesh sieves, to obtain final product.
The preparation method of a kind of Caulis Sacchari sinensis the fertilizer of retaining water and releasing nutrients slowly described above, comprises following operating procedure:
(1) following components raw material is taken according to ratio of weight and number: ammonium sulfate 30～50 parts, potassium chloride 10～30 parts, peroxophosphoric acid
Calcium 20～40 parts, metakaolin 40～60 parts, adhesive 1～5 parts, scale wax 3～23 parts and water-retaining agent 30～40 parts, then will
Ammonium sulfate, potassium chloride, calcium superphosphate mixing and stirring, add ethanol mixing, by being crushed to granule；Wherein, described
Concentration of alcohol be volumetric concentration be the ethanol solution of 30～40%；
(2) metakaolin and adhesive being mixed, then in step (1), gained particle surface uniformly sprays metakaolin
With the mixture of adhesive, until granule be mixed thing fully wrapped around live, spray the most again melted after scale wax；
(3) spray in the step (2) melted after scale wax gained material again spray the mixed of metakaolin and adhesive
Compound, is subsequently adding water-retaining agent, mix homogeneously, is dried, obtains Caulis Sacchari sinensis the fertilizer of retaining water and releasing nutrients slowly.
Wherein, in step (1) ethanol consumption be ammonium sulfate, potassium chloride, 0.2～0.4 times of calcium superphosphate gross mass.
Wherein, step (1) is crushed to the granule that particle diameter is 1～2nm.
Wherein, step (3) described baking temperature be 40～50 DEG C be dried 2.5～4.5 hours.
Wherein, gained Caulis Sacchari sinensis the fertilizer of retaining water and releasing nutrients slowly prepared as above is used for mountain planting Caulis Sacchari sinensis.
Compared with prior art, there is advantages that
Caulis Sacchari sinensis the fertilizer of retaining water and releasing nutrients slowly fertilizer efficiency of the present invention is good, releases fertile rate within a certain period of time higher, and water-retaining property is greatly improved, and has
It is beneficial to the utilization of mountain planting Caulis Sacchari sinensis.
Detailed description of the invention
It is described in detail below in conjunction with detailed description of the invention, it is to be understood that protection scope of the present invention is not by concrete
The restriction of embodiment.
Embodiment 1
A kind of preparation method of Caulis Sacchari sinensis the fertilizer of retaining water and releasing nutrients slowly, operating procedure is as follows:
Kaolin keeps temperature to be 700 DEG C of drying 3h, cooling, and the most ground 400 mesh sieves to obtain final product, standby.
(1) in units of g, following components raw material is weighed: ammonium sulfate 30g, potassium chloride 10g, calcium superphosphate 20g, above-mentioned standby
Metakaolin 40g, adhesive attapulgite clay powder 1g, scale wax 3g and water-retaining agent particle diameter be the polyacrylamide of 0.1nm
30g, then by ammonium sulfate, potassium chloride, calcium superphosphate mixing and stirring, adds the ethanol solution that volumetric concentration is 30% and mixes
Close, by being crushed to the granule that particle diameter is 1～2nm；Wherein, ethanol consumption is ammonium sulfate, potassium chloride, calcium superphosphate gross mass
0.4 times；
(2) metakaolin and adhesive attapulgite clay powder being mixed, then in step (1), gained particle surface is uniform
Spray metakaolin and the mixture of adhesive attapulgite clay powder, until granule be mixed thing fully wrapped around live, spray the most again
Spill the scale wax after melting；
(3) the scale wax gained material after sprinkling is melted in step (2) again sprays metakaolin and adhesive is concavo-convex
The mixture of rod clay powder, is subsequently adding water-retaining agent, mix homogeneously, and 40 DEG C are dried 4.5 hours, obtain Caulis Sacchari sinensis the fertilizer of retaining water and releasing nutrients slowly,
Prepare gained Caulis Sacchari sinensis the fertilizer of retaining water and releasing nutrients slowly for mountain planting Caulis Sacchari sinensis.
Embodiment 2
A kind of preparation method of Caulis Sacchari sinensis the fertilizer of retaining water and releasing nutrients slowly, operating procedure is as follows:
Kaolin keeps temperature to be 750 DEG C of drying 2h, cooling, and the most ground 450 mesh sieves to obtain final product, standby.
(1) in units of g, following components raw material is weighed: ammonium sulfate 40g, potassium chloride 20g, calcium superphosphate 30g, above-mentioned standby
Metakaolin 50g, adhesive attapulgite clay powder 3g, scale wax 13g and water-retaining agent particle diameter be the polyacrylamide of 0.08nm
35g, then by ammonium sulfate, potassium chloride, calcium superphosphate mixing and stirring, adds the ethanol solution that volumetric concentration is 35% and mixes
Close, by being crushed to the granule that particle diameter is 1～2nm；Wherein, ethanol consumption is ammonium sulfate, potassium chloride, calcium superphosphate gross mass
0.3 times；
(2) metakaolin and adhesive attapulgite clay powder being mixed, then in step (1), gained particle surface is uniform
Spray metakaolin and the mixture of adhesive attapulgite clay powder, until granule be mixed thing fully wrapped around live, spray the most again
Spill the scale wax after melting；
(3) the scale wax gained material after sprinkling is melted in step (2) again sprays metakaolin and adhesive is concavo-convex
The mixture of rod clay powder, is subsequently adding water-retaining agent, mix homogeneously, and 45 DEG C are dried 3.5 hours, obtain Caulis Sacchari sinensis the fertilizer of retaining water and releasing nutrients slowly,
Prepare gained Caulis Sacchari sinensis the fertilizer of retaining water and releasing nutrients slowly for mountain planting Caulis Sacchari sinensis.
Embodiment 3
A kind of preparation method of Caulis Sacchari sinensis the fertilizer of retaining water and releasing nutrients slowly, operating procedure is as follows:
Kaolin keeps temperature to be 800 DEG C of drying 1h, cooling, and the most ground 500 mesh sieves to obtain final product, standby.
(1) in units of g, following components raw material is weighed: ammonium sulfate 50g, potassium chloride 30g, calcium superphosphate 40g, above-mentioned standby
Metakaolin 60g, adhesive attapulgite clay powder 5g, scale wax 23g and water-retaining agent particle diameter be the polyacrylamide of 0.05nm
40g, then by ammonium sulfate, potassium chloride, calcium superphosphate mixing and stirring, adds the ethanol solution that volumetric concentration is 40% and mixes
Close, by being crushed to the granule that particle diameter is 1～2nm；Wherein, ethanol consumption is ammonium sulfate, potassium chloride, calcium superphosphate gross mass
0.4 times；
(2) metakaolin and adhesive attapulgite clay powder being mixed, then in step (1), gained particle surface is uniform
Spray metakaolin and the mixture of adhesive attapulgite clay powder, until granule be mixed thing fully wrapped around live, spray the most again
Spill the scale wax after melting；
(3) the scale wax gained material after sprinkling is melted in step (2) again sprays metakaolin and adhesive is concavo-convex
The mixture of rod clay powder, is subsequently adding water-retaining agent, mix homogeneously, and 50 DEG C are dried 2.5 hours, obtain Caulis Sacchari sinensis the fertilizer of retaining water and releasing nutrients slowly,
Prepare gained Caulis Sacchari sinensis the fertilizer of retaining water and releasing nutrients slowly for mountain planting Caulis Sacchari sinensis.
Comparative example 1
A kind of preparation method of Caulis Sacchari sinensis the fertilizer of retaining water and releasing nutrients slowly, operating procedure is as follows:
(1) in units of g, following components raw material is weighed: ammonium sulfate 40g, potassium chloride 20g, calcium superphosphate 30g, adhesive are recessed
Convex rod clay powder 3g, scale wax 13g and the polyacrylamide 35g that water-retaining agent particle diameter is 0.08nm, then by ammonium sulfate, chlorination
Potassium, calcium superphosphate mixing and stirring, add the ethanol solution mixing that volumetric concentration is 35%, be 1 by being crushed to particle diameter
～the granule of 2nm；Wherein, ethanol consumption be ammonium sulfate, potassium chloride, 0.3 times of calcium superphosphate gross mass；
(2) gained particle surface uniform spray paste stick attapulgite clay powder in step (1), until granule is mixed thing
Fully wrapped around live, spray the most again melted after scale wax；
(3) in step (2), the scale wax gained material spray paste stick attapulgite clay powder again after melting is sprayed, so
Rear addition water-retaining agent, mix homogeneously, 45 DEG C are dried 3.5 hours, obtain Caulis Sacchari sinensis the fertilizer of retaining water and releasing nutrients slowly.
Comparative example 2
A kind of preparation method of Caulis Sacchari sinensis the fertilizer of retaining water and releasing nutrients slowly, operating procedure is as follows:
(1) in units of g, following components raw material is weighed: ammonium sulfate 40g, potassium chloride 20g, calcium superphosphate 30g, low-grade phosphorus
Ore deposit 50g, adhesive attapulgite clay powder 3g, scale wax 13g and the polyacrylamide 35g that water-retaining agent particle diameter is 0.08nm, then
By ammonium sulfate, potassium chloride, calcium superphosphate mixing and stirring, add the ethanol solution mixing that volumetric concentration is 35%, by squeezing
It is pressed into the granule that particle diameter is 1～2nm；Wherein, ethanol consumption be ammonium sulfate, potassium chloride, 0.3 times of calcium superphosphate gross mass；
(2) low-grade phosphate ore and adhesive attapulgite clay powder being mixed, then in step (1), gained particle surface is equal
Even sprinkling low-grade phosphate ore and the mixture of adhesive attapulgite clay powder, until granule be mixed thing fully wrapped around live, then
Spray the scale wax after melting again；
(3) the scale wax gained material after sprinkling is melted in step (2) again sprays low-grade phosphate ore and adhesive is recessed
The mixture of convex rod clay powder, is subsequently adding water-retaining agent, mix homogeneously, and 45 DEG C are dried 3.5 hours, obtain Caulis Sacchari sinensis water-holding slow-release
Fertilizer, prepares gained Caulis Sacchari sinensis the fertilizer of retaining water and releasing nutrients slowly for mountain planting Caulis Sacchari sinensis.
Detection
1, above-described embodiment 1～3, comparative example 1, comparative example 2 are applied to mountain region cane planting, detect respectively
Its 24h, 168h, 64d nitrogenous fertilizer, potash fertilizer, phosphate fertilizer release fertile rate, draw table 1:
Table 1
As shown in Table 1, the present invention uses higher territory as raw material, can effectively improve and release fertile rate, it may be possible to because partially
High territory, after high temperature is dried, has the reason of sclay texture, and higher territory itself has certain viscosity, with gluing
Agent mixing can again can be as slow-release material as adhesive so for preparing gained granular fertilizers coat and has certain strong
Degree, makes fertilizer efficiency more preferably in practice.
2, above-described embodiment 1～3, comparative example 1, comparative example 2 are applied to mountain region cane planting, detect respectively
Its water conservation intensity, draws, embodiment 1 prepares adsorption fertilizer sole mass 24.6 times under gained Caulis Sacchari sinensis the fertilizer of retaining water and releasing nutrients slowly normal pressure
Water, embodiment 2 prepares the water of adsorption fertilizer sole mass 25.0 times under gained Caulis Sacchari sinensis the fertilizer of retaining water and releasing nutrients slowly normal pressure, prepared by embodiment 3
The water of adsorption fertilizer sole mass 24.8 times under gained Caulis Sacchari sinensis the fertilizer of retaining water and releasing nutrients slowly normal pressure, comparative example 1 prepares gained Caulis Sacchari sinensis and protects
The water of adsorption fertilizer sole mass 15 times under water slow-release fertilizer normal pressure, comparative example 2 prepares gained Caulis Sacchari sinensis the fertilizer of retaining water and releasing nutrients slowly normal pressure
Lower adsorption fertilizer sole mass 19.1 times.
The aforementioned description to the specific illustrative embodiment of the present invention illustrates that and the purpose of illustration.These describe
It is not wishing to limit the invention to disclosed precise forms, and it will be apparent that according to above-mentioned teaching, can much change
And change.The purpose selected exemplary embodiment and describe is to explain that the certain principles of the present invention and reality thereof should
With so that those skilled in the art be capable of and utilize the present invention various different exemplary and
Various different selections and change.The scope of the present invention is intended to be limited by claims and equivalents thereof.
Claims (10)
1. a Caulis Sacchari sinensis the fertilizer of retaining water and releasing nutrients slowly, it is characterised in that comprise following components raw material according to ratio of weight and number: ammonium sulfate 30～
50 parts, potassium chloride 10～30 parts, calcium superphosphate 20～40 parts, metakaolin 40～60 parts, adhesive 1～5 parts, scale wax 3～
23 parts and water-retaining agent 30～40 parts.
Caulis Sacchari sinensis the fertilizer of retaining water and releasing nutrients slowly the most according to claim 1, it is characterised in that: described adhesive is attapulgite clay powder.
Caulis Sacchari sinensis the fertilizer of retaining water and releasing nutrients slowly the most according to claim 1, it is characterised in that: described water-retaining agent is polyacrylamide.
Caulis Sacchari sinensis the fertilizer of retaining water and releasing nutrients slowly the most according to claim 1, it is characterised in that: described polyacrylamide particle diameter be 0.05～
0.1nm。
Caulis Sacchari sinensis the fertilizer of retaining water and releasing nutrients slowly the most according to claim 1, it is characterised in that: described metakaolin is that Kaolin keeps temperature
Degree is 700～800 DEG C dries 1～3h, cools down, the most ground 400～500 mesh sieves, to obtain final product.
6. the preparation method of a Caulis Sacchari sinensis the fertilizer of retaining water and releasing nutrients slowly as claimed in claim 1, it is characterised in that comprise following operation step
Rapid:
(1) following components raw material is taken according to ratio of weight and number: ammonium sulfate 30～50 parts, potassium chloride 10～30 parts, calcium superphosphate 20
～40 parts, metakaolin 40～60 parts, adhesive 1～5 parts, scale wax 3～23 parts and water-retaining agent 30～40 parts, then by sulphuric acid
Ammonium, potassium chloride, calcium superphosphate mixing and stirring, add ethanol mixing, by being crushed to granule；
(2) metakaolin and adhesive being mixed, then in step (1), gained particle surface sprays metakaolin and adhesive
Mixture, spray the most again melted after scale wax；
(3) in step (2), spray the scale wax gained material after melting and again spray the mixture of metakaolin and adhesive,
It is subsequently adding water-retaining agent, mix homogeneously, is dried, obtains Caulis Sacchari sinensis the fertilizer of retaining water and releasing nutrients slowly.
The preparation method of Caulis Sacchari sinensis the fertilizer of retaining water and releasing nutrients slowly the most according to claim 6, it is characterised in that: ethanol consumption in step (1)
For ammonium sulfate, potassium chloride, 0.2～0.4 times of calcium superphosphate gross mass.
The preparation method of Caulis Sacchari sinensis the fertilizer of retaining water and releasing nutrients slowly the most according to claim 6, it is characterised in that: step is crushed in (1)
Particle diameter is the granule of 1～2nm.
The preparation method of Caulis Sacchari sinensis the fertilizer of retaining water and releasing nutrients slowly the most according to claim 6, it is characterised in that: the described dry temperature of step (3)
Degree is 40～50 DEG C and is dried 2.5～4.5 hours.
The preparation method of Caulis Sacchari sinensis the fertilizer of retaining water and releasing nutrients slowly the most according to claim 6, it is characterised in that: prepare gained Caulis Sacchari sinensis water conservation
Slow-release fertilizer is used for mountain planting Caulis Sacchari sinensis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610870013.3A CN106316656A (en) | 2016-09-30 | 2016-09-30 | Sugar cane water retention slow release fertilizer and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610870013.3A CN106316656A (en) | 2016-09-30 | 2016-09-30 | Sugar cane water retention slow release fertilizer and preparation method thereof |
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| CN106316656A true CN106316656A (en) | 2017-01-11 |
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ID=57821363
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102001890A (en) * | 2010-12-10 | 2011-04-06 | 合肥工业大学 | Rosin-attapulgite-paraffin composite coated slow-release nitrogen fertilizer and preparation method thereof |
| CN104355785A (en) * | 2014-10-14 | 2015-02-18 | 马鞍山科邦生态肥有限公司 | Long-acting slow release organic fertilizer and preparation method thereof |
| CN104355786A (en) * | 2014-10-14 | 2015-02-18 | 马鞍山科邦生态肥有限公司 | Special controllable slow-release organic fertilizer for rice and preparation method of organic fertilizer |
| CN104761387A (en) * | 2015-04-13 | 2015-07-08 | 中国热带农业科学院橡胶研究所 | Water-retaining and slowly-release compound fertilizer and preparation method thereof |
-
2016
- 2016-09-30 CN CN201610870013.3A patent/CN106316656A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102001890A (en) * | 2010-12-10 | 2011-04-06 | 合肥工业大学 | Rosin-attapulgite-paraffin composite coated slow-release nitrogen fertilizer and preparation method thereof |
| CN104355785A (en) * | 2014-10-14 | 2015-02-18 | 马鞍山科邦生态肥有限公司 | Long-acting slow release organic fertilizer and preparation method thereof |
| CN104355786A (en) * | 2014-10-14 | 2015-02-18 | 马鞍山科邦生态肥有限公司 | Special controllable slow-release organic fertilizer for rice and preparation method of organic fertilizer |
| CN104761387A (en) * | 2015-04-13 | 2015-07-08 | 中国热带农业科学院橡胶研究所 | Water-retaining and slowly-release compound fertilizer and preparation method thereof |
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Application publication date: 20170111 |