CN107673885A - A kind of preparation method of green paddy rice-dedicated fertilizer - Google Patents
A kind of preparation method of green paddy rice-dedicated fertilizer Download PDFInfo
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- CN107673885A CN107673885A CN201711138561.8A CN201711138561A CN107673885A CN 107673885 A CN107673885 A CN 107673885A CN 201711138561 A CN201711138561 A CN 201711138561A CN 107673885 A CN107673885 A CN 107673885A
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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
- C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
- C05F17/00—Preparation of fertilisers characterised by biological or biochemical treatment steps, e.g. composting or fermentation
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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
- 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
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- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/20—Fertilizers of biological origin, e.g. guano or fertilizers made from animal corpses
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- Life Sciences & Earth Sciences (AREA)
- Pest Control & Pesticides (AREA)
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Soil Sciences (AREA)
- Biochemistry (AREA)
- Biotechnology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Microbiology (AREA)
- Molecular Biology (AREA)
- Fertilizers (AREA)
Abstract
The invention discloses a kind of preparation method of green paddy rice-dedicated fertilizer, comprise the following steps：Chicken manure, wheat bran, maize cob meal, alfalfa meal, diatomite, cinder, talcum powder, vermiculite power, flyash, silica are stirred, sieved, adds water, EM bacteria agent is added and ferments to obtain fermentation material；Ammonium nitrate, potassium sulfate, calcium superphosphate, the urea of three nitric acid six are added into fermentation material to close iron, humic acid manganese, zinc sulfate, humic acid magnesium, land plaster and be well mixed, and naturally dry, heating, sealing thermal insulation, are dried to obtain prefabricated material；Collagen complex, turfy soil, tea-seed oil stirring are added into prefabricated material, granulation, glutaraldehyde cross-linking is added, is dried to obtain green paddy rice-dedicated fertilizer.Collagen complex is prepared using following technique：Collagen is dissolved in sodium hydroxide solution, heated up, polyvinyl alcohol stirring is added, solution of zinc sulfate is added dropwise under stirring, completely follow-up continuous stirring is added dropwise and obtains collagen complex.
Description
Technical field
The present invention relates to technical field of fertilizers, more particularly to a kind of preparation method of green paddy rice-dedicated fertilizer.
Background technology
Rice is one kind of draft Oryza, and main most long one kind in Oryza as grain, also known as Asia
Continent type cultivated rice, rice are annual, grass, and unifacial leaf, property is liked warm and humid.Spending for rice is very small, when blooming, mainly
Arch can be presented in spray, and little Hua can be all held between end of the branch down 30 to 50 millimeters, and most of self-pollination is simultaneously born seeds, referred to as rice
Fringe, claim brown rice after sloughing glume, brown rice, which grinds, goes rice bran layer to can obtain rice.
Cultivated area of the rice in China is extensive, and substantial amounts of chemical fertilizer Fertilizer application effect is not ideal at present, can not only make
Into water and soil pollution, and paddy quality is poor, it would be highly desirable to solves.
The content of the invention
Based on technical problem existing for background technology, the present invention proposes a kind of preparation side of green paddy rice-dedicated fertilizer
Method, gained Fertilizer nutrient material abundance, needs of the rice growth to nutrient can be met, promote rice to carry out photosynthetic work
With, strengthen strength of stem, improve resistant to lodging, resistance against diseases, it is free from environmental pollution, and paddy quality is high.
A kind of preparation method of green paddy rice-dedicated fertilizer proposed by the present invention, comprises the following steps：
S1, by chicken manure, wheat bran, maize cob meal, alfalfa meal, diatomite, cinder, talcum powder, vermiculite power, flyash, two
Silica stirs, and sieving, adds water, adds EM bacteria agent and ferments to obtain fermentation material；
S2, ammonium nitrate, potassium sulfate, calcium superphosphate, the urea of three nitric acid six conjunction iron, humic acid manganese, sulphur are added into fermentation material
Sour zinc, humic acid magnesium, land plaster are well mixed, naturally dry, heating, sealing thermal insulation, are dried to obtain prefabricated material；
S3, collagen complex, turfy soil, tea-seed oil stirring are added into prefabricated material, granulation, add glutaraldehyde and hand over
Connection, is dried to obtain green paddy rice-dedicated fertilizer.
Preferably, in S1, chicken manure, wheat bran, maize cob meal, alfalfa meal, diatomite, cinder, talcum powder, vermiculite power, powder
Coal ash, the weight ratio of silica are 50-70：20-40：10-20：30-40：6-12：4-8：6-10：4-8：4-8：4-8.
Preferably, in S1, by chicken manure, wheat bran, maize cob meal, alfalfa meal, diatomite, cinder, talcum powder, vermiculite power,
Flyash, silica stir, and cross 80-100 mesh sieves, and it is 45-55wt% to add water to water content, add EM bacteria agent fermentation 7-
11 days, fermentation temperature was 28-36 DEG C, obtains fermentation material.
Preferably, in S2, fermentation material, ammonium nitrate, potassium sulfate, calcium superphosphate, the urea of three nitric acid six close iron, humic acid manganese,
Zinc sulfate, humic acid magnesium, the weight ratio of land plaster are 105-115：40-60：15-25：30-40：4-8：0.6-1.2：0.8-
1.6：0.4-0.8：2-4.
Preferably, in S2, ammonium nitrate, potassium sulfate, calcium superphosphate, the urea of three nitric acid six is added into fermentation material and closes iron, corruption
Phytic acid manganese, zinc sulfate, humic acid magnesium, land plaster are well mixed, naturally dry, are warming up to 110-120 DEG C, sealing thermal insulation 30-
50min, 130-140 DEG C are dried to obtain prefabricated material.
Preferably, in S3, prefabricated material, collagen complex, turfy soil, tea-seed oil, the weight ratio of glutaraldehyde are 200-
220：6-12：10-20：4-8：1-2.
Preferably, in S3, collagen complex, turfy soil, tea-seed oil stirring 10-20min is added into prefabricated material, is stirred
It is 300-450r/min to mix speed, granulation, adds glutaraldehyde cross-linking, is dried to obtain green paddy rice-dedicated fertilizer.
Preferably, in S3, collagen complex is prepared using following technique：It is molten that collagen is dissolved in sodium hydroxide
In liquid, heating, polyvinyl alcohol stirring is added, solution of zinc sulfate is added dropwise under stirring, completely follow-up continuous stirring is added dropwise and obtains glue
Former albumen composition.
Preferably, in S3 collagen complex preparation technology, concentration of sodium hydroxide solution 1-1.4mol/L, sulfuric acid
Zinc solution concentration is 4-8wt%, and collagen, sodium hydroxide solution, polyvinyl alcohol, the weight ratio of solution of zinc sulfate are 15-20：
70-90：6-12：4-8.
Preferably, in S3, collagen complex is prepared using following technique：It is molten that collagen is dissolved in sodium hydroxide
In liquid, 70-80 DEG C is warming up to, polyvinyl alcohol stirring 40-80min is added, solution of zinc sulfate is added dropwise under stirring, is added dropwise complete
After continue stir 10-20min, obtain collagen complex.
Nutriment of the present invention enriches, and can meet needs of the rice growth to nutrient, promotes rice to carry out light
Cooperation is used, free from environmental pollution, and is obviously improved soil texture, and fertilizer efficiency is persistently powerful, and plantation gained rice yield is high, cost
It is low, strengthen strength of stem, improve resistant to lodging, resistance against diseases.
In the collagen complex of the present invention, the zinc ion of zinc sulfate can chelate simultaneously with collagen, polyvinyl alcohol,
Stability is good, and intensity is high, and has preferable antimildew and antibacterial performance, dual-network structure can be formed, with turfy soil, tea-seed oil
Compounding is coated on prefabricated material surface granulation, and then using glutaraldehyde cross-linking, intensity is high, the smooth good dispersion in surface, has simultaneously
Certain toughness, is not easily broken, and the nutriment of inside can be sustained, nutriment rate of release is slow, nutriment
It is lost in seldom, retain water and nutrients effect is good；And chicken manure, wheat bran, maize cob meal, alfalfa meal compound, after EM bacteria agent fermentation process,
Generation is easily the fertilizer of rice in utilization, improves soil fertilizer matter, can also kill the insect in raw material by high-temperature process, rice
Disease rate is small, can be effectively increased the yield and quality of rice, further with cinder, talcum powder, vermiculite power, flyash, titanium dioxide
Silicon acts on, and a large amount of cavities are contained in inside, good permeability, breeding place on the one hand can be provided for beneficial bacterium, can improve soil environment,
On the other hand enriched containing a large amount of mineral matters and middle trace element, nutrient content, promote the growth of rice, and environment dirt can be reduced
Dye, promote the sustainable development of agricultural.
Embodiment
Below, technical scheme is described in detail by specific embodiment.
Embodiment 1
A kind of preparation method of green paddy rice-dedicated fertilizer, comprises the following steps：
S1, by 50g chicken manures, 40g wheat brans, 10g maize cob meals, 40g alfalfa meals, 6g diatomite, 8g cinders, 6g talcums
Powder, 8g vermiculite powers, 4g flyash, 8g silica stir, and cross 80 mesh sieves, and it is 55wt% to add water to water content, add
0.4gEM bacteria fermentations 11 days, fermentation temperature are 28 DEG C, obtain fermentation material；
S2,40g ammonium nitrate, 25g potassium sulfates, 30g calcium superphosphate, the conjunction of the urea of tri- nitric acid of 8g six are added into 115g fermentation materials
Iron, 0.6g humic acids manganese, 1.6g zinc sulfate, 0.4g humic acids magnesium, 4g land plasters are well mixed, and naturally dry, are warming up to 110
DEG C, sealing thermal insulation 50min, 130 DEG C are dried to obtain prefabricated material；
S3,6g collagen complex, 20g turfy soils, 4g tea-seed oils stirring 20min are added into the prefabricated material of 220g, stirred
It is 300r/min to mix speed, granulation, adds 2g glutaraldehyde cross-linkings, is dried to obtain green paddy rice-dedicated fertilizer.
Collagen complex is prepared using following technique：It is 1mol/L hydrogen-oxygens that 15g collagens are dissolved in into 90g concentration
Change in sodium solution, be warming up to 80 DEG C, add 6g polyvinyl alcohol stirring 80min, it is 8wt% sulfuric acid that 4g concentration, which is added dropwise, under stirring
Zinc solution, follow-up continuous stirring 10min completely is added dropwise, obtains collagen complex.
Embodiment 2
A kind of preparation method of green paddy rice-dedicated fertilizer, comprises the following steps：
S1, by 70g chicken manures, 20g wheat brans, 20g maize cob meals, 30g alfalfa meals, 12g diatomite, 4g cinders, 10g talcums
Powder, 4g vermiculite powers, 8g flyash, 4g silica stir, and cross 100 mesh sieves, and it is 45wt% to add water to water content, add
0.8gEM bacteria fermentations 7 days, fermentation temperature are 36 DEG C, obtain fermentation material；
S2,60g ammonium nitrate, 15g potassium sulfates, 40g calcium superphosphate, the conjunction of the urea of tri- nitric acid of 4g six are added into 105g fermentation materials
Iron, 1.2g humic acids manganese, 0.8g zinc sulfate, 0.8g humic acids magnesium, 2g land plasters are well mixed, and naturally dry, are warming up to 120
DEG C, sealing thermal insulation 30min, 140 DEG C are dried to obtain prefabricated material；
S3,12g collagen complex, 10g turfy soils, 8g tea-seed oils stirring 10min are added into the prefabricated material of 200g, stirred
It is 450r/min to mix speed, granulation, adds 1g glutaraldehyde cross-linkings, is dried to obtain green paddy rice-dedicated fertilizer.
Collagen complex is prepared using following technique：It is 1.4mol/L hydrogen that 20g collagens are dissolved in into 70g concentration
In sodium hydroxide solution, 70 DEG C are warming up to, adds 12g polyvinyl alcohol stirring 40min, it is 4wt% that 8g concentration, which is added dropwise, under stirring
Solution of zinc sulfate, follow-up continuous stirring 20min completely is added dropwise, obtains collagen complex.
Embodiment 3
A kind of preparation method of green paddy rice-dedicated fertilizer, comprises the following steps：
S1, by 55g chicken manures, 35g wheat brans, 12g maize cob meals, 37g alfalfa meals, 8g diatomite, 7g cinders, 7g talcums
Powder, 7g vermiculite powers, 5g flyash, 7g silica stir, and cross 85 mesh sieves, and it is 52wt% to add water to water content, add
0.5gEM bacteria fermentations 10 days, fermentation temperature are 30 DEG C, obtain fermentation material；
S2,45g ammonium nitrate, 22g potassium sulfates, 33g calcium superphosphate, the conjunction of the urea of tri- nitric acid of 7g six are added into 112g fermentation materials
Iron, 0.8g humic acids manganese, 1.4g zinc sulfate, 0.5g humic acids magnesium, 3.5g land plasters are well mixed, and naturally dry, are warming up to 112
DEG C, sealing thermal insulation 45min, 133 DEG C are dried to obtain prefabricated material；
S3,8g collagen complex, 18g turfy soils, 5g tea-seed oils stirring 18min are added into the prefabricated material of 215g, stirred
It is 350r/min to mix speed, granulation, adds 1.8g glutaraldehyde cross-linkings, is dried to obtain green paddy rice-dedicated fertilizer.
Collagen complex is prepared using following technique：It is 1.1mol/L hydrogen that 16g collagens are dissolved in into 85g concentration
In sodium hydroxide solution, 77 DEG C are warming up to, adds 8g polyvinyl alcohol stirring 70min, it is 7wt% sulphur that 5g concentration, which is added dropwise, under stirring
Sour zinc solution, follow-up continuous stirring 12min completely is added dropwise, obtains collagen complex.
Embodiment 4
A kind of preparation method of green paddy rice-dedicated fertilizer, comprises the following steps：
S1, by 65g chicken manures, 25g wheat brans, 18g maize cob meals, 33g alfalfa meals, 10g diatomite, 5g cinders, 9g talcums
Powder, 5g vermiculite powers, 7g flyash, 5g silica stir, and cross 95 mesh sieves, and it is 48wt% to add water to water content, add
0.7gEM bacteria fermentations 8 days, fermentation temperature are 34 DEG C, obtain fermentation material；
S2,55g ammonium nitrate, 18g potassium sulfates, 37g calcium superphosphate, the conjunction of the urea of tri- nitric acid of 5g six are added into 108g fermentation materials
Iron, 1g humic acids manganese, 1g zinc sulfate, 0.7g humic acids magnesium, 2.5g land plasters are well mixed, and naturally dry, are warming up to 118 DEG C,
Sealing thermal insulation 35min, 137 DEG C are dried to obtain prefabricated material；
S3,10g collagen complex, 12g turfy soils, 7g tea-seed oils stirring 12min are added into the prefabricated material of 205g, stirred
It is 400r/min to mix speed, granulation, adds 1.2g glutaraldehyde cross-linkings, is dried to obtain green paddy rice-dedicated fertilizer.
Collagen complex is prepared using following technique：It is 1.3mol/L hydrogen that 18g collagens are dissolved in into 75g concentration
In sodium hydroxide solution, 73 DEG C are warming up to, adds 10g polyvinyl alcohol stirring 50min, it is 5wt% that 7g concentration, which is added dropwise, under stirring
Solution of zinc sulfate, follow-up continuous stirring 18min completely is added dropwise, obtains collagen complex.
The foregoing is only a preferred embodiment of the present invention, but protection scope of the present invention be not limited thereto,
Any one skilled in the art the invention discloses technical scope in, technique according to the invention scheme and its
Inventive concept is subject to equivalent substitution or change, should all be included within the scope of the present invention.
Claims (10)
1. a kind of preparation method of green paddy rice-dedicated fertilizer, it is characterised in that comprise the following steps：
S1, by chicken manure, wheat bran, maize cob meal, alfalfa meal, diatomite, cinder, talcum powder, vermiculite power, flyash, titanium dioxide
Silicon stirs, and sieving, adds water, adds EM bacteria agent and ferments to obtain fermentation material；
S2, into fermentation material add ammonium nitrate, potassium sulfate, calcium superphosphate, the urea of three nitric acid six close iron, humic acid manganese, zinc sulfate,
Humic acid magnesium, land plaster are well mixed, naturally dry, heating, sealing thermal insulation, are dried to obtain prefabricated material；
S3, collagen complex, turfy soil, tea-seed oil stirring are added into prefabricated material, granulation, add glutaraldehyde cross-linking, do
It is dry to obtain green paddy rice-dedicated fertilizer.
2. the preparation method of green paddy rice-dedicated fertilizer according to claim 1, it is characterised in that in S1, chicken manure, wheat
Bran, maize cob meal, alfalfa meal, diatomite, cinder, talcum powder, vermiculite power, flyash, the weight ratio of silica are 50-70：
20-40：10-20：30-40：6-12：4-8：6-10：4-8：4-8：4-8.
3. the preparation method of green paddy rice-dedicated fertilizer according to claim 1 or claim 2, it is characterised in that in S1, by chicken
Excrement, wheat bran, maize cob meal, alfalfa meal, diatomite, cinder, talcum powder, vermiculite power, flyash, silica stir,
80-100 mesh sieves are crossed, it is 45-55wt% to add water to water content, adds EM bacteria agent and ferments 7-11 days, and fermentation temperature is 28-36 DEG C,
Obtain fermentation material.
4. according to the preparation method of any one of the claim 1-3 green paddy rice-dedicated fertilizers, it is characterised in that in S2,
Fermentation material, ammonium nitrate, potassium sulfate, calcium superphosphate, the urea of three nitric acid six close iron, humic acid manganese, zinc sulfate, humic acid magnesium, gypsum
The weight ratio of powder is 105-115：40-60：15-25：30-40：4-8：0.6-1.2：0.8-1.6：0.4-0.8：2-4.
5. according to the preparation method of any one of the claim 1-4 green paddy rice-dedicated fertilizers, it is characterised in that in S2,
Ammonium nitrate, potassium sulfate, calcium superphosphate, the urea of three nitric acid six are added into fermentation material and closes iron, humic acid manganese, zinc sulfate, humic acid
Magnesium, land plaster are well mixed, naturally dry, are warming up to 110-120 DEG C, sealing thermal insulation 30-50min, 130-140 DEG C is dried to obtain
Prefabricated material.
6. according to the preparation method of any one of the claim 1-5 green paddy rice-dedicated fertilizers, it is characterised in that in S3,
Prefabricated material, collagen complex, turfy soil, tea-seed oil, the weight ratio of glutaraldehyde are 200-220：6-12：10-20：4-8：1-
2。
7. according to the preparation method of any one of the claim 1-6 green paddy rice-dedicated fertilizers, it is characterised in that in S3,
Collagen complex, turfy soil, tea-seed oil stirring 10-20min, mixing speed 300-450r/ are added into prefabricated material
Min, granulation, glutaraldehyde cross-linking is added, is dried to obtain green paddy rice-dedicated fertilizer.
8. according to the preparation method of any one of the claim 1-7 green paddy rice-dedicated fertilizers, it is characterised in that in S3,
Collagen complex is prepared using following technique：Collagen is dissolved in sodium hydroxide solution, heated up, adds polyethylene
Alcohol stirs, and solution of zinc sulfate is added dropwise under stirring, and completely follow-up continuous stirring is added dropwise and obtains collagen complex.
9. according to the preparation method of any one of the claim 1-8 green paddy rice-dedicated fertilizers, it is characterised in that S3 glue
In former albumen composition preparation technology, concentration of sodium hydroxide solution 1-1.4mol/L, solution of zinc sulfate concentration is 4-8wt%,
Collagen, sodium hydroxide solution, polyvinyl alcohol, the weight ratio of solution of zinc sulfate are 15-20：70-90：6-12：4-8.
10. according to the preparation method of any one of the claim 1-9 green paddy rice-dedicated fertilizers, it is characterised in that in S3,
Collagen complex is prepared using following technique：Collagen is dissolved in sodium hydroxide solution, is warming up to 70-80 DEG C,
Polyvinyl alcohol stirring 40-80min is added, solution of zinc sulfate is added dropwise under stirring, follow-up continuous stirring 10-20min completely is added dropwise,
Obtain collagen complex.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112608184A (en) * | 2020-12-23 | 2021-04-06 | 西南科技大学 | Preparation method of ecological environment-friendly special fertilizer for rice |
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| CA2383712A1 (en) * | 2000-07-03 | 2002-01-10 | Nft Industries, Llc | Controlled release agricultural products and processes for making same |
| CN1696362A (en) * | 2005-05-17 | 2005-11-16 | 四川大学 | Collagen-polyvinyl alcohol composite fiber modified by metallic ion, and preparation method |
| CN106278546A (en) * | 2016-07-27 | 2017-01-04 | 宿松县洪家龙油茶种植专业合作社 | A kind of environmental protection and the oil tea slow-release fertilizer of soil fertility can be strengthened |
| CN106397059A (en) * | 2016-11-29 | 2017-02-15 | 宋杨明 | Rice fertilizer with high utilization rate and preparation method thereof |
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2017
- 2017-11-16 CN CN201711138561.8A patent/CN107673885A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2383712A1 (en) * | 2000-07-03 | 2002-01-10 | Nft Industries, Llc | Controlled release agricultural products and processes for making same |
| CN1696362A (en) * | 2005-05-17 | 2005-11-16 | 四川大学 | Collagen-polyvinyl alcohol composite fiber modified by metallic ion, and preparation method |
| CN106278546A (en) * | 2016-07-27 | 2017-01-04 | 宿松县洪家龙油茶种植专业合作社 | A kind of environmental protection and the oil tea slow-release fertilizer of soil fertility can be strengthened |
| CN106397059A (en) * | 2016-11-29 | 2017-02-15 | 宋杨明 | Rice fertilizer with high utilization rate and preparation method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112608184A (en) * | 2020-12-23 | 2021-04-06 | 西南科技大学 | Preparation method of ecological environment-friendly special fertilizer for rice |
| CN112608184B (en) * | 2020-12-23 | 2022-03-04 | 西南科技大学 | Preparation method of ecological environment-friendly special fertilizer for rice |
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