CN102643124A - Preparation method of liquid fertilizer - Google Patents
Preparation method of liquid fertilizer Download PDFInfo
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- CN102643124A CN102643124A CN2011100396698A CN201110039669A CN102643124A CN 102643124 A CN102643124 A CN 102643124A CN 2011100396698 A CN2011100396698 A CN 2011100396698A CN 201110039669 A CN201110039669 A CN 201110039669A CN 102643124 A CN102643124 A CN 102643124A
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Abstract
The invention discloses a preparation method of liquid fertilizer, and is characterized in that the method comprises the following steps: S1. preparing a colloidal chelating solution which comprises collagen; S2. preparing a medium trace element solution which comprises at least one medium trace element, or a compound or composition of the medium trace element; S3. preparing a large trace element solution which comprises at least one large trace element, or a compound or composition of the large trace element; S4. preparing liquid fertilizer, that is, performing mixing, stirring, vacuum filtration, and filtration of the colloidal chelating solution, the medium trace element solution, and the large trace element solution prepared in step S1, S2, and S3 to prepare the liquid fertilizer. The liquid fertilizer prepared by the method of the invention not only has more comprehensive and reasonable nutritional component combination, but also is easier to be absorbed by crops, and has wide market application prospects.
Description
Technical field
The present invention relates to a kind of agricultural fertilizer material, specifically is a kind of full nutrition organic fertilizer of colloid albumen that contains, particularly with middle trace element, and proteic liquid fertilizer of nitrogen, phosphorus, potassium and colloid and preparation method.
Backgroundfield
Meticulous fertilising operation such as liquid fertilizer can be widely used in soilless culture, breeding, grow seedlings; Also can be through sprinkling irrigation, drip irrigation, sprinkling, drip the land for growing field crops fertilising operation that mode such as spill is used for various crops such as cotton, wheat, corn, paddy rice, vegetables, melon and fruit, flowers; Both can implement the root fertilising, also can implement the fertilising of leaf portion.
For example, soilless cultures such as China tobacco, tealeaves, flowers, the fruit tree cultivated area of growing seedlings number with ten million mu.Soilless culture is grown seedlings and is mainly used liquid fertilizer and even space matrix, can shorten the plant growth cycle greatly, also can improve seedling percent, improves crop yield.
Compare as heeling in to grow seedlings with nutrient bag, the soilless culture of tobacco is grown seedlings and can be shortened nursery stage more than 15 days, and cigarette seedling plant height increases by 40.2%, and stem slightly increases by 8.3%, and fresh weight increases by 42.9%; Radical increases by 35.2%, and the root growth amount increases 7.61cm, and fresh weight increases by 12.5%, and it is about 60% that dry weight increases, and improved cigarette seedling quality greatly.After the tobacco seedling that does not have a figure cultivation with liquid fertilizer is transplanted to the land for growing field crops, ahead of time the group's of entering phase, can do sth. in advance more than 19 days; The tobacco leaf economic yield formation phase prolongs 11 days, and cigarette plant height degree increases 11.8cm, and the stem stalk is sturdy; Stem girth increases by 13.8%, and the effective blade number increases by 2.3, and blade is long and big; Improved economic benefit (consulting: Jiang Wenlin work, " application of cultivation technique without soil on tobacco seedling ", " farming and cultivation " the 2nd phase in 2002) greatly.This shows that liquid fertilizer all has very big promoter action to indoor culture, the land for growing field crops growth day after tomorrow of soilless culture crop.
Because the nutritive ingredient that existing liquid fertilizer contains is not comprehensive; Existing soilless culture crop need be implemented repeatedly to throw fertile during indoor raising of seedling; Liquid fertilizer kind, brand, the dose of each throwing fertilizer are all inequality, careless slightly, seedling will be taken place burn the perhaps thin dead situation of fertilizer deficiency to death.
Therefore, exploitation towards soilless culture, grow seedlings, the single all-round liquid fertilizer of breeding operation, avoid multi-brand liquid fertilizer, multiple class I liquid I fertilizer hybrid cross to throw fertile situation, this is a technical barrier of this area.
In addition, the land for growing field crops uses liquid fertilizer also to have many good qualities:
For example, liquid fertilizer is used with respect to using solid fertilizer in the land for growing field crops, and following advantage is arranged:
The first, reduce expenses.Liquid fertilizer manufacturing enterprise can save the large number quipments device of producing solid fertilizer, like equipment configurations such as whitewashing, granulation, oven dry, thereby reduces production costs.
The second, the protection environment.Do not have dust in the liquid fertilizer production process, non smoke can not cause environmental pollution and infringement HUMAN HEALTH.
The 3rd, fertilizer efficiency is high.Solid fertilizer is difficult for absorbing, and generally can only be absorbed about 30% by crop, and liquid fertilizer then can be absorbed more than 80% by crop, and its utilization ratio obviously improves.
The 4th, grow.Throw under the identical situation of fertile scale, use the crop yield of liquid fertilizer higher than solid fertilizer.For example, grain can increase production 15%-23%; Beet can increase production 9.4%-13.4%; Cotton can be increased production 6.4%-12% (consulting: Wang Yunxia work, " present condition for application of liquid fertilizer and development trend ", the 41st the 4th phase of volume of " chemical fertilizer design " August in 2003).
Because the nutritive ingredient that existing liquid fertilizer contains is not comprehensive; Existing field crop need be implemented repeatedly to throw fertile in the land for growing field crops between the growth stage, liquid fertilizer kind, brand, the dose of each throwing fertilizer are all inequality, and the amount of application of liquid nitrogen fertilizer is big; Use frequent; And need frequently append liquid potash fertilizer, phosphate fertilizer etc. in the specific period, careless slightly, field crop will be taken place burn the perhaps thin dead situation of fertilizer deficiency to death.
In order to satisfy the requirement of increasing both production and income; The peasant needs a kind of liquid fertilizer of full nutrition; Avoid between soilless culture crop fertilization, land for growing field crops fertilizer application period, the peasant selects and uses multiple type, multi-brand liquid fertilizer, and the difficult problem of the various liquid fertilizer doses of meticulous control.
Summary of the invention
In order to overcome the deficiency of prior art, develop a kind of liquid fertilizer of full nutrition, the invention discloses a kind of preparation method of liquid fertilizer, it is characterized in that, comprise the steps:
S1. prepare colloid chelating liquid, said colloidal solution comprises collagen protein;
S2. trace element solution in the preparation, said in trace element solution comprise at least a in trace element, compound or compsn that perhaps should trace element;
S3. prepare big first cellulose solution, said big trace element solution comprises at least a big trace element, compound or compsn that perhaps should trace element;
S4. prepare liquid fertilizer: with said colloid chelating liquid, middle trace element solution, the big first cellulose solution that step S1, S2, S3 produce, implement mixing, stirring, vacuum filtration, filtration, make liquid fertilizer.
Trace element comprises calcium in said, perhaps magnesium, perhaps sulphur;
Said big trace element comprises nitrogen, perhaps phosphorus, perhaps potassium.
Among the S1, get technical hydrochloric acid and mix, make hydrochloric acid soln with water; Mix gelatin, stir with said hydrochloric acid soln, make the colloid mother liquor, filter said colloid mother liquor, make said colloid chelating liquid;
Among the S2, get EDTA-Ca, three water magnesium sulfates, EDTA-Cu, boric acid, ammonium molybdate, water,, make said middle trace element solution above-mentioned 5 kinds of raw material mixing stirrings;
Among the S3, get urea, phosphoric acid solution, Repone K, water,, make said big first cellulose solution above-mentioned 4 kinds of raw material mixing stirrings.
Among the S1, said hydrochloric acid soln is by the technical hydrochloric acid of 30 mass parts and mixed the getting of water of 70 mass parts; Said colloid mother liquor is mixed with the hydrochloric acid soln of 50-99 mass parts by the gelatin of 1-50 mass parts, puts into corrosion resistant reaction kettle, and 60-80 ℃ temperature of reaction, stirs with 100 rev/mins rotating speeds to make in 40-60 minute; Said colloid chelating liquid makes by filtering said colloid mother liquor;
Among the S2; The mass ratio of said EDTA-Ca, three water magnesium sulfates, EDTA-Cu, boric acid, ammonium molybdate, water is 11: 5: 0.2: 0.5: 0.01: 83.29; After said 5 kinds of raw materials mix; 60-80 ℃ temperature of reaction, stirred 40-60 minute with 100 rev/mins rotating speeds, make said middle trace element solution;
Among the S3; The said mass ratio of getting urea, phosphoric acid solution, Repone K, water is 5-21.7: 5-16.26: 5-16.67: 45.37-85, after the said raw materials mix, 60-80 ℃ temperature of reaction; Stirred 120-180 minute with 100 rev/mins rotating speeds, make said big first cellulose solution;
Among the S4; The mass ratio of said colloid chelating liquid, middle trace element solution, big first cellulose solution is 5-20: 1-10: 70-94; After said 3 kinds of raw materials mix, stirred 40-60 minute, use vacuum pump suction filtration reaction kettle to be vacuum simultaneously with 100 rev/mins rotating speeds; Filter through strainer again, make liquid fertilizer.
Phosphoric acid solution among the said S3 comprises the phosphoric acid of 85% mass ratio, the water of 15% mass ratio.
Technical hydrochloric acid among the said S1 contains the hydrochloric acid of 31% quality, the water of 69% quality.
The molecular weight model of the gelatin among the said S1 is 100000-150000.
Water content with the liquid fertilizer of method of the present invention preparation is not less than mass ratio 2%, is no more than 27%.
Beneficial effect of the present invention:
The liquid fertilizer of the present invention preparation can be for soilless culture, grow seedlings, breeding operation provides single all-round liquid fertilizer; Avoid multi-brand liquid fertilizer, multiple class I liquid I fertilizer hybrid cross to throw fertile situation; Avoid burning seedling and thin seedling problem, can improve the fertilising benefit of soilless culture crop greatly.The total nutrient liquid fertilizer of the present invention's preparation can be avoided between the fertilizer application period of land for growing field crops, and the peasant selects and uses multiple type, multi-brand liquid fertilizer, and the difficult problem of the various liquid fertilizer doses of meticulous control, improves the nutriment in a fertilizer specific absorption, improves the output of field crop greatly.
Embodiment
Embodiment 1
The invention discloses the liquid fertilizer preparation method of grow wheat land for growing field crops fertilising, it is characterized in that, comprise the steps:
S1. prepare colloid chelating liquid, said colloidal solution comprises collagen protein;
S2. trace element solution in the preparation, said in trace element solution comprise at least a in trace element, compound or compsn that perhaps should trace element;
S3. prepare big first cellulose solution, said big trace element solution comprises at least a big trace element, compound or compsn that perhaps should trace element;
S4. prepare liquid fertilizer: with said colloid chelating liquid, middle trace element solution, the big first cellulose solution that step S1, S2, S3 produce, implement mixing, stirring, vacuum filtration, filtration, make liquid fertilizer.
Trace element comprises calcium, magnesium, sulphur in said;
Said big trace element comprises nitrogen, phosphorus, potassium.
Among the S1, get technical hydrochloric acid and mix, make hydrochloric acid soln with water; Mix gelatin, stir with said hydrochloric acid soln, make the colloid mother liquor, filter said colloid mother liquor, make said colloid chelating liquid;
Among the S2, get EDTA-Ca, three water magnesium sulfates, EDTA-Cu, boric acid, ammonium molybdate, water,, make said middle trace element solution above-mentioned 5 kinds of raw material mixing stirrings;
Among the S3, get urea, phosphoric acid solution, Repone K, water,, make said big first cellulose solution above-mentioned 4 kinds of raw material mixing stirrings.
Among the S1, said hydrochloric acid soln is by the technical hydrochloric acid of 30 mass parts and mixed the getting of water of 70 mass parts; Said colloid mother liquor is mixed with the hydrochloric acid soln of 60 mass parts by the gelatin of 40 mass parts, puts into corrosion resistant reaction kettle, and 65 ℃ temperature of reaction, stirs with 100 rev/mins rotating speeds to make in 55 minutes; Said colloid chelating liquid makes by filtering said colloid mother liquor;
Among the S2; The mass ratio of said EDTA-Ca, three water magnesium sulfates, EDTA-Cu, boric acid, ammonium molybdate, water is 11: 5: 0.2: 0.5: 0.01: 83.29; After said 5 kinds of raw materials mix; 68 ℃ temperature of reaction, stirred 50 minutes with 100 rev/mins rotating speeds, make said middle trace element solution;
Among the S3, the said mass ratio of getting urea, phosphoric acid solution, Repone K, water is 20: 11: 12: 57, after the said raw materials mix,, stirred 130 minutes with 100 rev/mins rotating speeds 55 ℃ temperature of reaction, and make said big first cellulose solution;
Among the S4, the mass ratio of said colloid chelating liquid, middle trace element solution, big first cellulose solution is 6: 8: 86, after said 3 kinds of raw materials mix; Stirred 48 minutes with 100 rev/mins rotating speeds; Use vacuum pump suction filtration reaction kettle to be vacuum simultaneously, filter through strainer again, make liquid fertilizer.
Phosphoric acid solution among the said S3 comprises the phosphoric acid of 85% mass ratio, the water of 15% mass ratio.
Technical hydrochloric acid among the said S1 contains the hydrochloric acid of 31% quality, the water of 69% quality.
The molecular weight model of the gelatin among the said S1 is 100000-150000.
Using the water content mass ratio of the liquid fertilizer of method preparation of the present invention is 24%.
Embodiment 2
Present embodiment discloses one and has grown tobacco soilless culture with the preparation method of liquid fertilizer, comprises the steps:
S1. prepare colloid chelating liquid, said colloidal solution comprises collagen protein;
S2. trace element solution in the preparation, said in trace element solution comprise at least a in trace element, compound or compsn that perhaps should trace element;
S3. prepare big first cellulose solution, said big trace element solution comprises at least a big trace element, compound or compsn that perhaps should trace element;
S4. prepare liquid fertilizer: with said colloid chelating liquid, middle trace element solution, the big first cellulose solution that step S1, S2, S3 produce, implement mixing, stirring, vacuum filtration, filtration, make liquid fertilizer.
Trace element comprises calcium, magnesium, sulphur in said;
Said big trace element comprises nitrogen, phosphorus, potassium.
Among the S1, get technical hydrochloric acid and mix, make hydrochloric acid soln with water; Mix gelatin, stir with said hydrochloric acid soln, make the colloid mother liquor, filter said colloid mother liquor, make said colloid chelating liquid;
Among the S2, get EDTA-Ca, three water magnesium sulfates, EDTA-Cu, boric acid, ammonium molybdate, water,, make said middle trace element solution above-mentioned 5 kinds of raw material mixing stirrings;
Among the S3, get urea, phosphoric acid solution, Repone K, water,, make said big first cellulose solution above-mentioned 4 kinds of raw material mixing stirrings.
Among the S1, said hydrochloric acid soln is by the technical hydrochloric acid of 30 mass parts and mixed the getting of water of 70 mass parts; Said colloid mother liquor is mixed with the hydrochloric acid soln of 55 mass parts by the gelatin of 45 mass parts, puts into corrosion resistant reaction kettle, and 70 ℃ temperature of reaction, stirs with 100 rev/mins rotating speeds to make in 50 minutes; Said colloid chelating liquid makes by filtering said colloid mother liquor;
Among the S2; The mass ratio of said EDTA-Ca, three water magnesium sulfates, EDTA-Cu, boric acid, ammonium molybdate, water is 11: 5: 0.2: 0.5: 0.01: 83.29; After said 5 kinds of raw materials mix; 75 ℃ temperature of reaction, stirred 53 minutes with 100 rev/mins rotating speeds, make said middle trace element solution;
Among the S3, the said mass ratio of getting urea, phosphoric acid solution, Repone K, water is 21: 15: 14: 50, and after the said raw materials mix, the temperature of reaction 660 stirred 135 minutes with 100 rev/mins rotating speeds, made said big first cellulose solution;
Among the S4, the mass ratio of said colloid chelating liquid, middle trace element solution, big first cellulose solution is 17: 9: 74, after said 3 kinds of raw materials mix; Stirred 56 minutes with 100 rev/mins rotating speeds; Use vacuum pump suction filtration reaction kettle to be vacuum simultaneously, filter through strainer again, make liquid fertilizer.
Phosphoric acid solution among the said S3 comprises the phosphoric acid of 85% mass ratio, the water of 15% mass ratio.
Technical hydrochloric acid among the said S1 contains the hydrochloric acid of 31% quality, the water of 69% quality.
The molecular weight model of the gelatin among the said S1 is 100000-150000.
Use the water content of the liquid fertilizer of method preparation of the present invention to be mass ratio 21%.
Embodiment 3
Present embodiment discloses a kind of liquid fertilizer preparation method of rice field fertilising, it is characterized in that, comprises the steps:
S1. prepare colloid chelating liquid, said colloidal solution comprises collagen protein;
S2. trace element solution in the preparation, said in trace element solution comprise at least a in trace element, compound or compsn that perhaps should trace element;
S3. prepare big first cellulose solution, said big trace element solution comprises at least a big trace element, compound or compsn that perhaps should trace element;
S4. prepare liquid fertilizer: with said colloid chelating liquid, middle trace element solution, the big first cellulose solution that step S1, S2, S3 produce, implement mixing, stirring, vacuum filtration, filtration, make liquid fertilizer.
Trace element comprises calcium, magnesium, sulphur in said;
Said big trace element comprises nitrogen, phosphorus, potassium.
Among the S1, get technical hydrochloric acid and mix, make hydrochloric acid soln with water; Mix gelatin, stir with said hydrochloric acid soln, make the colloid mother liquor, filter said colloid mother liquor, make said colloid chelating liquid;
Among the S2, get EDTA-Ca, three water magnesium sulfates, EDTA-Cu, boric acid, ammonium molybdate, water,, make said middle trace element solution above-mentioned 5 kinds of raw material mixing stirrings;
Among the S3, get urea, phosphoric acid solution, Repone K, water,, make said big first cellulose solution above-mentioned 4 kinds of raw material mixing stirrings.
Among the S1, said hydrochloric acid soln is by the technical hydrochloric acid of 30 mass parts and mixed the getting of water of 70 mass parts; Said colloid mother liquor is mixed with the hydrochloric acid soln of 50-99 mass parts by the gelatin of 30-50 mass parts, puts into corrosion resistant reaction kettle, and 60-80 ℃ temperature of reaction, stirs with 100 rev/mins rotating speeds to make in 40-60 minute; Said colloid chelating liquid makes by filtering said colloid mother liquor;
Among the S2; The mass ratio of said EDTA-Ca, three water magnesium sulfates, EDTA-Cu, boric acid, ammonium molybdate, water is 11: 5: 0.2: 0.5: 0.01: 83.29; After said 5 kinds of raw materials mix; 60-80 ℃ temperature of reaction, stirred 40-60 minute with 100 rev/mins rotating speeds, make said middle trace element solution;
Among the S3; The said mass ratio of getting urea, phosphoric acid solution, Repone K, water is 15-20: 5-10: 5-12: 46-80, after the said raw materials mix, 60-80 ℃ temperature of reaction; Stirred 120-180 minute with 100 rev/mins rotating speeds, make said big first cellulose solution;
Among the S4; The mass ratio of said colloid chelating liquid, middle trace element solution, big first cellulose solution is 5-10: 5-10: 70-90; After said 3 kinds of raw materials mix, stirred 40-60 minute, use vacuum pump suction filtration reaction kettle to be vacuum simultaneously with 100 rev/mins rotating speeds; Filter through strainer again, make liquid fertilizer.
Phosphoric acid solution among the said S3 comprises the phosphoric acid of 85% mass ratio, the water of 15% mass ratio.
Technical hydrochloric acid among the said S1 contains the hydrochloric acid of 31% quality, the water of 69% quality.
The molecular weight model of the gelatin among the said S1 is 100000-150000.
Water content with the liquid fertilizer of method of the present invention preparation is not less than mass ratio 5%, is no more than 25%.
Claims (8)
1. the preparation method of a liquid fertilizer is characterized in that, comprises the steps:
S1. prepare colloid chelating liquid, said colloidal solution comprises collagen protein;
S2. trace element solution in the preparation, said in trace element solution comprise at least a in trace element, compound or compsn that perhaps should trace element;
S3. prepare big first cellulose solution, said big trace element solution comprises at least a big trace element, compound or compsn that perhaps should trace element;
S4. prepare liquid fertilizer: with said colloid chelating liquid, middle trace element solution, the big first cellulose solution that step S1, S2, S3 produce, implement mixing, stirring, vacuum filtration, filtration, make liquid fertilizer.
2. preparation method according to claim 1 is characterized in that,
Trace element comprises calcium in said, perhaps magnesium, perhaps sulphur;
Said big trace element comprises nitrogen, perhaps phosphorus, perhaps potassium.
3. preparation method according to claim 2 is characterized in that,
Among the S1, get technical hydrochloric acid and mix, make hydrochloric acid soln with water; Mix gelatin, stir with said hydrochloric acid soln, make the colloid mother liquor, filter said colloid mother liquor, make said colloid chelating liquid;
Among the S2, get EDTA-Ca, three water magnesium sulfates, EDTA-Cu, boric acid, ammonium molybdate, water,, make said middle trace element solution above-mentioned 5 kinds of raw material mixing stirrings;
Among the S3, get urea, phosphoric acid solution, Repone K, water,, make said big first cellulose solution above-mentioned 4 kinds of raw material mixing stirrings.
4. preparation method according to claim 3 is characterized in that, among the S1, said hydrochloric acid soln is by the technical hydrochloric acid of 30 mass parts and mixed the getting of water of 70 mass parts; Said colloid mother liquor is mixed with the hydrochloric acid soln of 50-99 mass parts by the gelatin of 1-50 mass parts, puts into corrosion resistant reaction kettle, and 60-80 ℃ temperature of reaction, stirs with 100 rev/mins rotating speeds to make in 40-60 minute; Said colloid chelating liquid makes by filtering said colloid mother liquor;
Among the S2; The mass ratio of said EDTA-Ca, three water magnesium sulfates, EDTA-Cu, boric acid, ammonium molybdate, water is 11: 5: 0.2: 0.5: 0.01: 83.29; After said 5 kinds of raw materials mix; 60-80 ℃ temperature of reaction, stirred 40-60 minute with 100 rev/mins rotating speeds, make said middle trace element solution;
Among the S3; The said mass ratio of getting urea, phosphoric acid solution, Repone K, water is 5-21.7: 5-16.26: 5-16.67: 45.37-85, after the said raw materials mix, 60-80 ℃ temperature of reaction; Stirred 120-180 minute with 100 rev/mins rotating speeds, make said big first cellulose solution;
Among the S4; The mass ratio of said colloid chelating liquid, middle trace element solution, big first cellulose solution is 5-20: 1-10: 70-94; After said 3 kinds of raw materials mix, stirred 40-60 minute, use vacuum pump suction filtration reaction kettle to be vacuum simultaneously with 100 rev/mins rotating speeds; Filter through strainer again, make liquid fertilizer.
5. preparation method according to claim 4 is characterized in that said phosphoric acid solution comprises the phosphoric acid of 85% quality, the water of 15% quality.
6. preparation method according to claim 4 is characterized in that said technical hydrochloric acid comprises the hydrochloric acid of 31% quality, the water of 69% quality.
7. preparation method according to claim 2 is characterized in that, the molecular weight model of said gelatin is 100000-150000.
8. the liquid fertilizer that makes according to each described preparation method of claim 1 to 6 is characterized in that the water content of said liquid fertilizer is not less than mass ratio 2%, is no more than 27%.
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| CN2011100396698A CN102643124A (en) | 2011-02-17 | 2011-02-17 | Preparation method of liquid fertilizer |
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| CN2011100396698A CN102643124A (en) | 2011-02-17 | 2011-02-17 | Preparation method of liquid fertilizer |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110627549A (en) * | 2018-06-22 | 2019-12-31 | 潍坊市云涛有机肥料有限公司 | High-concentration amino acid water solution-containing fertilizer and preparation process thereof |
| CN112142515A (en) * | 2020-09-27 | 2020-12-29 | 陕西科技大学 | Polypeptide chelated trace element foliar fertilizer as well as preparation method and use method thereof |
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| JPH02204383A (en) * | 1989-02-01 | 1990-08-14 | Nippon Hiryo Kk | Gelatinous fertilizer |
| CN1450029A (en) * | 2003-04-29 | 2003-10-22 | 刘泉 | Leaf surface fertilizer preparation process |
| CN1562915A (en) * | 2003-12-16 | 2005-01-12 | 邵宝富 | Natural liquid fertilizer and preparation method |
| CN101948350A (en) * | 2010-08-19 | 2011-01-19 | 北京农学院 | Composite fertilizer and preparation method thereof |
-
2011
- 2011-02-17 CN CN2011100396698A patent/CN102643124A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02204383A (en) * | 1989-02-01 | 1990-08-14 | Nippon Hiryo Kk | Gelatinous fertilizer |
| CN1450029A (en) * | 2003-04-29 | 2003-10-22 | 刘泉 | Leaf surface fertilizer preparation process |
| CN1562915A (en) * | 2003-12-16 | 2005-01-12 | 邵宝富 | Natural liquid fertilizer and preparation method |
| CN101948350A (en) * | 2010-08-19 | 2011-01-19 | 北京农学院 | Composite fertilizer and preparation method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110627549A (en) * | 2018-06-22 | 2019-12-31 | 潍坊市云涛有机肥料有限公司 | High-concentration amino acid water solution-containing fertilizer and preparation process thereof |
| CN112142515A (en) * | 2020-09-27 | 2020-12-29 | 陕西科技大学 | Polypeptide chelated trace element foliar fertilizer as well as preparation method and use method thereof |
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Application publication date: 20120822 |