CN106242859A - A kind of green cucumber slow-release fertilizer preparation method - Google Patents
A kind of green cucumber slow-release fertilizer preparation method Download PDFInfo
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- CN106242859A CN106242859A CN201610778758.7A CN201610778758A CN106242859A CN 106242859 A CN106242859 A CN 106242859A CN 201610778758 A CN201610778758 A CN 201610778758A CN 106242859 A CN106242859 A CN 106242859A
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- fertilizer
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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
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05B—PHOSPHATIC FERTILISERS
- C05B7/00—Fertilisers based essentially on alkali or ammonium orthophosphates
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
- C05F3/00—Fertilisers from human or animal excrements, e.g. manure
-
- 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
- C05G3/60—Biocides or preservatives, e.g. disinfectants, pesticides or herbicides; Pest repellants or attractants
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
- C05G3/80—Soil conditioners
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G5/00—Fertilisers characterised by their form
- C05G5/30—Layered or coated, e.g. dust-preventing coatings
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- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Pest Control & Pesticides (AREA)
- Soil Sciences (AREA)
- Plant Pathology (AREA)
- Fertilizers (AREA)
Abstract
The present invention relates to green cucumber technical field of slow release fertilizer, especially a kind of green cucumber slow-release fertilizer preparation method, it is that raw material is prepared as peplos slurry by polyvinyl alcohol, starch, liquid paraffin/glycerol, so that it can degraded, and easily form densification on the surface of the film has pore structure, and it can be avoided that moisture enters inside membrane structure, reach effectively to control fertilizer slow release, extend the fertilizer slow release cycle；And the preparation process starched by peplos and burden control so that mechanical property and the degradation speed of peplos slurry are under control, effectively met the nutrition release demand in cucumber growth cycle, improve cucumber yield；And being processed by the temperature control after being sprayed at fertilizer surface so that the pore size of film, porosity is controlled, further ensure that Fructus Cucumidis sativi slow-release fertilizer disclosure satisfy that the needs in cucumber growth cycle, realize the releasing nutrients to cucumber quantification, improve utilization rate of fertilizer, reduce green cucumber cost.
Description
Technical field
The present invention relates to green cucumber technical field of slow release fertilizer, especially a kind of green cucumber slow-release fertilizer side of preparation
Method.
Background technology
Fructus Cucumidis sativi, formal name used at school Cucumis sativus Linn, Cucurbitaceae cucumber plants.Also referred to as cucumber, green cucumber.Fruit color
In glossy dark green or emerald green, there is the spinule of softness on surface.The most generally cultivate, now extensively plant in temperate zone and torrid areas.Yellow
Melon happiness is warm, is weak to cold, and for one of main greenhouse product, nutritional need is high.
Prior art there is people special-purpose fertilizer for green cucumber is made that research, if number of patent application is 201510413918.3 adopts
It is configured to special-purpose fertilizer for green cucumber with nitrogenous fertilizer, phosphate fertilizer, potash fertilizer, the Lumbricus feces become thoroughly decomposed, middle trace element, chelating agen, medicament so that its
Nutrition disclosure satisfy that the growth demand of Fructus Cucumidis sativi, and reaches safety and environmental protection, adds avermectin and fosthiazate mixture, it is possible to have
The generation of effect prevention root-knot nematode disease.
Along with the development of agricultural production, slow-release controlled-release fertilizer field is turned on for agricultural fertilizer so that agricultural fertilizer
Fertilizer efficiency obtain persistently, reaching to make full use of, reduce agricultural planting cost, reduce environmental pollution rate；But in prior art, pin
To in the process for preparation of special-purpose fertilizer for green cucumber, it is Fructus Cucumidis sativi nutrient demand constantly to be studied and controls mostly so that acquisition
Fertilizer disclosure satisfy that the growth demand of Fructus Cucumidis sativi, and most of special-purpose fertilizer for green cucumber to be all direct thing mixed, pelletize is prepared from so that yellow
Melon specific fertilizer applies fertilizer after in soil, has reached fast decoupled, making it difficult to meet the demand of cucumber growth for a long time, cause needs
It is repeatedly Fructus Cucumidis sativi fertilizer treatment, the growth demand of Fructus Cucumidis sativi could be met, simultaneously as the great majority used are n-p-k element
Fertilizer carries out that thing is mixed to be prepared from so that relatively big in cucumber fertilising difficulty, is easily caused Radix Cucumidis sativi lethal, causes and subtract
Produce.
Summary of the invention
In order to solve above-mentioned technical problem present in prior art, the present invention provides a kind of green cucumber slow-release fertilizer system
Preparation Method.
It is achieved particular by techniques below scheme:
A kind of green cucumber slow-release fertilizer preparation method, comprises the following steps:
(1) it is 0.5-10:1 mixing by polyvinyl alcohol and starch according to mass ratio, and is added thereto to account for polyvinyl alcohol, shallow lake
The liquid paraffin of the 1-20% of powder gross mass, is added to the water, with 80-100 DEG C at dispersed with stirring, it is thus achieved that peplos starch；
(2) fertilizer is placed in pelletize in comminutor, and dries, obtain being dried granule；Dry granule is placed in seed-coating machine,
Under seed-coating machine rotates, being sprayed into by peplos slurry, peplos slurry straying quatity accounts for the 3-7% of dry granular mass, is placed in-3 DEG C to 3 DEG C
Cold preservation 1-3h in environment, cold storage procedure is continuous agitated conditions,.
Described peplos slurry, is wherein additionally added the medical stone powder accounting for polyvinyl alcohol quality 3-7%.
Described peplos slurry, is wherein additionally added the alginate aqueous solution accounting for polyvinyl alcohol quality 5-10%, Qi Zhonghai
The mass concentration of alginate aqueous solution is 0.1-0.8%.It is preferably sodium alginate aqueous solution.
Described fertilizer, is carbamide 2-15 part, Diammonium phosphate (DAP) 3-21 part, potassium sulfate 10-13 part, magnesium sulfate in parts by weight
3-7 part, calcium sulfate 0.1-0.3 part, Borax 2-6 part, potassium citrate 0.01-0.8 part, zinc oxalate 0.03-0.09 part.
Described fertilizer, is 13 parts of carbamide, Diammonium phosphate (DAP) 10 parts, potassium sulfate 12 parts, 5 parts of magnesium sulfate, sulfur in parts by weight
Acid calcium 0.2 part, Borax 5 parts, potassium citrate 0.5 part, zinc oxalate 0.07 part.
Described fertilizer, it is in granulation process, is also added with accounting for the Zinc oxide powder of fertilizer gross mass 1-3%.
Described liquid paraffin uses glycerol to substitute.
Containing containing the avilamycin accounting for fertilizer gross mass 0.1-0.6% in described fertilizer.
Compared with prior art, the technique effect of the present invention is embodied in:
It is that raw material is prepared as peplos slurry by polyvinyl alcohol, starch, liquid paraffin/glycerol so that it can be degraded, and
Easily form the fine and close pore structure that has on the surface of the film, and it can be avoided that moisture enters inside membrane structure, reach effectively to control
Fertilizer slow release, extends the fertilizer slow release cycle；And the preparation process starched by peplos and burden control so that the power of peplos slurry
Learn performance and degradation speed is under control, effectively meet the nutrition release demand in cucumber growth cycle, improve Fructus Cucumidis sativi and produce
Amount；And processed by the temperature control after being sprayed at fertilizer surface so that the pore size of film, porosity is controlled, and enters
One step ensure that Fructus Cucumidis sativi slow-release fertilizer disclosure satisfy that the needs in cucumber growth cycle, it is achieved the releasing nutrients to cucumber quantification, carry
High utilization rate of fertilizer, reduces green cucumber cost.
By the addition of medical stone powder, it is possible to be effectively promoted the degraded of coating layer, it is to avoid to environment；
Added by alginate aqueous solution, it is possible to after promoting that peplos slurry is sprayed at fertiliser granulates surface, form densification
Coating layer, improves the slow release effect of slow-release fertilizer；And connecting inner nutrient slowly-released out while, at metal ion and the work of light
Under with so that alginate aqueous solution composition can promote the degraded of toxic organics, reduce soil pollution rate, improve soil
Earth structure sheaf, improves loosing soil, improves cucumber growth environmental quality；Especially it is included in fertiliser granulates at Zinc oxide powder
In, along with Fertilizer nutrient discharges, under the effect of water, there is above-mentioned effect in Zinc oxide powder and the alginate on coating layer,
High degree improve environmental quality.
By the addition of avilamycin, it is possible to the effective generation preventing Fructus Cucumidis sativi root-knot nematode, improve yield.
The slow release cycle of the Fructus Cucumidis sativi slow-release fertilizer of the invention is longer, it is possible to Continuous slow release about 130 days in soil.And
And during slow release, As time goes on, from the beginning of the 20th day, obtained substantial amounts of release, and at the 90th day energy
Enough realize nutrition release rate and reach more than 89%, it is possible to effectively meet the nutritional need in cucumber growth cycle, improve fertilizer
Utilization rate, reduces cost.
Detailed description of the invention
Below in conjunction with specific embodiment, technical scheme is further limited, but claimed
Scope is not only limited to description.
Fertilizer in example 1 below-5 can be through becoming thoroughly decomposed or without the farm manure become thoroughly decomposed, such as chicken manure, cattle
Excrement, sheep stool, pig manure, Lumbricus feces etc.；Can also be by compounding compound fertilizer, such as Patent No. 201410292008.X
Fructus Cucumidis sativi chemical fertilizer specially or Fructus Cucumidis sativi medicine dedicated fertilizer etc. that number of patent application is 201510977549.0.
Embodiment 1
A kind of green cucumber slow-release fertilizer preparation method, comprises the following steps:
(1) it is 0.5:1 mixing by polyvinyl alcohol and starch according to mass ratio, and is added thereto to account for polyvinyl alcohol, starch
The liquid paraffin of the 1% of gross mass, is added to the water, with 80 DEG C at dispersed with stirring, it is thus achieved that peplos starch；
(2) fertilizer is placed in pelletize in comminutor, and dries, obtain being dried granule；Dry granule is placed in seed-coating machine,
Under seed-coating machine rotates, being sprayed into by peplos slurry, peplos slurry straying quatity accounts for the 3% of dry granular mass, is placed in the ring of-3 DEG C to 3 DEG C
Cold preservation 1h in border, cold storage procedure is continuous agitated conditions,.
Embodiment 2
A kind of green cucumber slow-release fertilizer preparation method, comprises the following steps:
(1) it is 10:1 mixing by polyvinyl alcohol and starch according to mass ratio, and it is total to be added thereto to account for polyvinyl alcohol, starch
The glycerol of the 20% of quality, is added to the water, with 100 DEG C at dispersed with stirring, it is thus achieved that peplos starch；
(2) fertilizer is placed in pelletize in comminutor, and dries, obtain being dried granule；Dry granule is placed in seed-coating machine,
Under seed-coating machine rotates, being sprayed into by peplos slurry, peplos slurry straying quatity accounts for the 7% of dry granular mass, is placed in the ring of-3 DEG C to 3 DEG C
Cold preservation 3h in border, cold storage procedure is continuous agitated conditions,.
Embodiment 3
A kind of green cucumber slow-release fertilizer preparation method, comprises the following steps:
(1) it is 1:1 mixing by polyvinyl alcohol and starch according to mass ratio, and it is total to be added thereto to account for polyvinyl alcohol, starch
The liquid paraffin of the 3% of quality, is added to the water, with 85 DEG C at dispersed with stirring, it is thus achieved that peplos starch；
(2) fertilizer is placed in pelletize in comminutor, and dries, obtain being dried granule；Dry granule is placed in seed-coating machine,
Under seed-coating machine rotates, being sprayed into by peplos slurry, peplos slurry straying quatity accounts for the 4% of dry granular mass, is placed in the ring of-3 DEG C to 3 DEG C
Cold preservation 2h in border, cold storage procedure is continuous agitated conditions,.Described peplos slurry, has wherein been additionally added and has accounted for polyvinyl alcohol
The medical stone powder of quality 3%.
Embodiment 4
A kind of green cucumber slow-release fertilizer preparation method, comprises the following steps:
(1) it is 9:1 mixing by polyvinyl alcohol and starch according to mass ratio, and it is total to be added thereto to account for polyvinyl alcohol, starch
The glycerol of the 2% of quality, is added to the water, with 95 DEG C at dispersed with stirring, it is thus achieved that peplos starch；
(2) fertilizer is placed in pelletize in comminutor, and dries, obtain being dried granule；Dry granule is placed in seed-coating machine,
Under seed-coating machine rotates, being sprayed into by peplos slurry, peplos slurry straying quatity accounts for the 6% of dry granular mass, is placed in the ring of-3 DEG C to 3 DEG C
Cold preservation 1.5h in border, cold storage procedure is continuous agitated conditions,.
Described peplos slurry, is wherein additionally added the medical stone powder accounting for polyvinyl alcohol quality 7%.
Described peplos slurry, is wherein additionally added the alginate aqueous solution accounting for polyvinyl alcohol quality 5%, wherein alginic acid
The mass concentration of saline solution is 0.1%.
Embodiment 5
A kind of green cucumber slow-release fertilizer preparation method, comprises the following steps:
(1) it is 5:1 mixing by polyvinyl alcohol and starch according to mass ratio, and it is total to be added thereto to account for polyvinyl alcohol, starch
The liquid paraffin of the 15% of quality, is added to the water, with 90 DEG C at dispersed with stirring, it is thus achieved that peplos starch；
(2) fertilizer is placed in pelletize in comminutor, and dries, obtain being dried granule；Dry granule is placed in seed-coating machine,
Under seed-coating machine rotates, being sprayed into by peplos slurry, peplos slurry straying quatity accounts for the 5% of dry granular mass, is placed in the ring of-3 DEG C to 3 DEG C
Cold preservation 2h in border, cold storage procedure is continuous agitated conditions,.
Described peplos slurry, is wherein additionally added the medical stone powder accounting for polyvinyl alcohol quality 5%.
Described peplos slurry, is wherein additionally added the alginate aqueous solution accounting for polyvinyl alcohol quality 10%, wherein Sargassum
The mass concentration of acid salt aqueous solution is 0.8%.
Embodiment 6
On the basis of embodiment 1, described peplos slurry, wherein it is additionally added the alginic acid accounting for polyvinyl alcohol quality 8%
Saline solution, wherein the mass concentration of alginate aqueous solution is 0.6%.
Described fertilizer, is carbamide 2kg, Diammonium phosphate (DAP) 3kg, potassium sulfate 10kg, magnesium sulfate 3kg, calcium sulfate by weight
0.1kg, Borax 2kg, potassium citrate 0.01kg, zinc oxalate 0.03kg.
Described fertilizer, it is in granulation process, is also added with accounting for the Zinc oxide powder of fertilizer gross mass 1%.Described
Containing containing the avilamycin accounting for fertilizer gross mass 0.1% in fertilizer.
Embodiment 7
On the basis of embodiment 1, described fertilizer, is carbamide 15kg, Diammonium phosphate (DAP) 21kg, potassium sulfate by weight
13kg, magnesium sulfate 7kg, calcium sulfate 0.3kg, Borax 6kg, potassium citrate 0.8kg, zinc oxalate 0.09kg.Described fertilizer contains
Containing the avilamycin accounting for fertilizer gross mass 0.6%.
Embodiment 8
On the basis of embodiment 4, described fertilizer, is carbamide 13kg, Diammonium phosphate (DAP) 10kg, potassium sulfate by weight
12kg, magnesium sulfate 5kg, calcium sulfate 0.2kg, Borax 5kg, potassium citrate 0.5kg, zinc oxalate 0.07kg.Described fertilizer, its
In granulation process, it is also added with accounting for the Zinc oxide powder of fertilizer gross mass 3%.Containing accounting for fertilizer gross mass in described fertilizer
The avilamycin of 0.5%.
Embodiment 9
On the basis of embodiment 5, described fertilizer, is carbamide 2kg, Diammonium phosphate (DAP) 21kg, potassium sulfate by weight
10kg, magnesium sulfate 6kg, calcium sulfate 0.2kg, Borax 3kg, potassium citrate 0.07kg, zinc oxalate 0.08kg.Described fertilizer, its
In granulation process, it is also added with accounting for the Zinc oxide powder of fertilizer gross mass 2.5%.Containing total containing accounting for fertilizer in described fertilizer
The avilamycin of quality 0.3%.
Claims (9)
1. a green cucumber slow-release fertilizer preparation method, it is characterised in that comprise the following steps:
(1) it is 0.5-10:1 mixing by polyvinyl alcohol and starch according to mass ratio, and it is total to be added thereto to account for polyvinyl alcohol, starch
The liquid paraffin of the 1-20% of quality, is added to the water, with 80-100 DEG C at dispersed with stirring, it is thus achieved that peplos starch；
(2) fertilizer is placed in pelletize in comminutor, and dries, obtain being dried granule；Dry granule is placed in seed-coating machine, at bag
Under clothing machine rotates, being sprayed into by peplos slurry, peplos slurry straying quatity accounts for the 3-7% of dry granular mass, is placed in the environment of-3 DEG C to 3 DEG C
Middle cold preservation 1-3h, cold storage procedure is continuous agitated conditions,.
2. green cucumber slow-release fertilizer preparation method as claimed in claim 1, it is characterised in that described peplos slurry, wherein
It is additionally added the medical stone powder accounting for polyvinyl alcohol quality 3-7%.
3. green cucumber slow-release fertilizer preparation method as claimed in claim 1, it is characterised in that described peplos slurry, wherein
Being additionally added the alginate aqueous solution accounting for polyvinyl alcohol quality 5-10%, wherein the mass concentration of alginate aqueous solution is
0.1-0.8%.
4. green cucumber slow-release fertilizer preparation method as claimed in claim 1, it is characterised in that described fertilizer, with weight
Part is calculated as carbamide 2-15 part, Diammonium phosphate (DAP) 3-21 part, potassium sulfate 10-13 part, magnesium sulfate 3-7 part, calcium sulfate 0.1-0.3 part, boron
Sand 2-6 part, potassium citrate 0.01-0.8 part, zinc oxalate 0.03-0.09 part.
5. the slow-release fertilizer preparation method of the green cucumber as described in claim 1 or 4, it is characterised in that described fertilizer, with weight
Amount part is calculated as 13 parts of carbamide, Diammonium phosphate (DAP) 10 parts, potassium sulfate 12 parts, 5 parts of magnesium sulfate, 0.2 part of calcium sulfate, Borax 5 parts, citric acid
0.5 part of potassium, zinc oxalate 0.07 part.
6. green cucumber slow-release fertilizer preparation method as claimed in claim 1, it is characterised in that described fertilizer, it is being made
During Li, it is also added with accounting for the Zinc oxide powder of fertilizer gross mass 1-3%.
7. green cucumber slow-release fertilizer preparation method as claimed in claim 1, it is characterised in that described liquid paraffin uses
Glycerol substitutes.
8. green cucumber slow-release fertilizer preparation method as claimed in claim 1, it is characterised in that contain in described fertilizer
Account for the avilamycin of fertilizer gross mass 0.1-0.6%.
9. the green cucumber slow release that prepared by the green cucumber slow-release fertilizer preparation method as described in any one of claim 1-8
Fertile.
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| CN201610778758.7A CN106242859A (en) | 2016-08-31 | 2016-08-31 | A kind of green cucumber slow-release fertilizer preparation method |
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| CN201610778758.7A CN106242859A (en) | 2016-08-31 | 2016-08-31 | A kind of green cucumber slow-release fertilizer preparation method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108251328A (en) * | 2017-12-16 | 2018-07-06 | 山东省科学院生态研究所 | A kind of microbial bacterial agent for preventing vegetables Meloidogyne incognita disease and its application |
| CN108863527A (en) * | 2018-07-06 | 2018-11-23 | 蚌埠市禹会区马城胡本号家庭农场 | A kind of slow-release fertilizer applied on growth of watermelon |
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| CN103102216A (en) * | 2013-01-21 | 2013-05-15 | 华南农业大学 | Coated fertilizer for inducing root growth and preparation method and application thereof |
| CN104529603A (en) * | 2014-10-14 | 2015-04-22 | 马鞍山科邦生态肥有限公司 | Cucumber coated slow release fertilizer and preparation method thereof |
| CN104649806A (en) * | 2013-11-21 | 2015-05-27 | 中国科学院大连化学物理研究所 | Sodium alginate oligosaccharide coated slow-release fertilizer and preparation and application thereof |
| CN105347939A (en) * | 2015-11-26 | 2016-02-24 | 王德和 | Granular organic fertilizer for preventing and treating cucumber gray mold |
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2016
- 2016-08-31 CN CN201610778758.7A patent/CN106242859A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103102216A (en) * | 2013-01-21 | 2013-05-15 | 华南农业大学 | Coated fertilizer for inducing root growth and preparation method and application thereof |
| CN104649806A (en) * | 2013-11-21 | 2015-05-27 | 中国科学院大连化学物理研究所 | Sodium alginate oligosaccharide coated slow-release fertilizer and preparation and application thereof |
| CN104529603A (en) * | 2014-10-14 | 2015-04-22 | 马鞍山科邦生态肥有限公司 | Cucumber coated slow release fertilizer and preparation method thereof |
| CN105347939A (en) * | 2015-11-26 | 2016-02-24 | 王德和 | Granular organic fertilizer for preventing and treating cucumber gray mold |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108251328A (en) * | 2017-12-16 | 2018-07-06 | 山东省科学院生态研究所 | A kind of microbial bacterial agent for preventing vegetables Meloidogyne incognita disease and its application |
| CN108863527A (en) * | 2018-07-06 | 2018-11-23 | 蚌埠市禹会区马城胡本号家庭农场 | A kind of slow-release fertilizer applied on growth of watermelon |
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