CN1569755A - Process for preparing stress-resistance seaweed fertilizer - Google Patents
Process for preparing stress-resistance seaweed fertilizer Download PDFInfo
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- CN1569755A CN1569755A CN 03133732 CN03133732A CN1569755A CN 1569755 A CN1569755 A CN 1569755A CN 03133732 CN03133732 CN 03133732 CN 03133732 A CN03133732 A CN 03133732A CN 1569755 A CN1569755 A CN 1569755A
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- marine alga
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Abstract
The invention discloses a process for preparing stress-resistance seaweed fertilizer comprising the steps of, (1) airing seaweed, removing impurity substance, (2) charging fresh water, (3) agitating and steeping, decompression concentration, separating high temperature salt by centrifugal separation, (4) disintegrating concentration liquid with dried solid evolution, (5) charging 95% of ethanol into fresh seaweed, (6) squashing the algae, agitating, centrifuging and storing the liquid, (7) removing salt from the solution through compression, (8) cooling down, charging saturated diamino ammonium chromic thiocyanate solution, (9) collecting deposition, (10) mixing the compression liquid, dried solid substance and precipitate homogeneously, (11) spray drying.
Description
Technical field
The present invention relates to the marine alga chemistry, be specially a kind of preparation method of stress-resistant seaweed fertilizer.
Background technology
China is large agricultural country, and the usage quantity of chemical fertilizer ranks first in the world, and the use of a large amount of chemical fertilizer causes the soil compaction degree constantly to worsen the reduction of (particularly China Hexi Corridor is especially serious) and crop quality.China is the country that water resources lacks relatively in addition, and 3.8 hundred million mu farmland is dry farming district and half dry farming district.The common chemical fertilizer that China uses at present is not strong to the above-mentioned agriculture characteristics specific aim of China with external general liquid fertilizer.The stress-resistant seaweed fertilizer utilizes China to have rich seaweed resources now exactly, requirement and developed regions at country's Tenth Five-Year Plan Period development and exploitation western agriculture can increase crop yield to the demand development of green agriculture is a kind of, reduce soil compaction, the seaweed products that improve the moisture hold capacity and improve arid pressure.
Drought-resistant agriculture is a global research topic, and the arid and semi-arid lands is distributed in more than 50 countries and regions.At the 80-90% of these countries and regions cultivated areas is dry farming.Dry farming has become influences the important natural disaster that world agriculture production is faced.It is annual in the world because arid reduces the tens billion of kilograms of grain yield.According to nearest statistics, the nonirrigated farmland area of China enlarges year by year to some extent, expands 3.8 hundred million mu to from 3.1 hundred million mu of the fifties at present.It is rainless that the most of area of NORTHWEST CHINA belongs to arid, lack of water, and wherein the loess plateau is that the semiarid zone at center is the main region of China's dry farming.
The abundant oceanic resources of development and utilization are one of main directions in this century.Particularly China has the abundant and big characteristics of drought-resistant agriculture area of oceanic resources, the preparation of stress-resistant seaweed fertilizer product and production are to meet very much country gives priority to plan to western part needs, also meet the drought-resistant water-preserving that emphasis improves western drought-resistant agriculture, improve the demand that improves crop yield.
Abroad to the existing very long history of the research of seaweed fertilizer.According to international food and agricultural organization statistics (see figure 1) in 1999, the marine alga output of China ranks first in the world, and accounts for 61% of Gross World Product.The Asia-Pacific account for remaining 30%, having only 9% marine alga output is to belong to " other country ".But these marine alga output only account for other country of world's marine alga output 9% just, and but since nineteen fifty production seaweed fertilizer, the seaweed fertilizer more than 90% is all produced by these countries on the world market at present.The research starting of our national seaweed fertilizer very late, only be nearly 2 years from people such as Han Lijun born the country " 95 " brainstorm subject after, obtained the related products that the relevant fresh marine alga of usefulness produces in 2002, produce seasonal restriction owing to use fresh marine alga to run into as main material production, and the region that promote to produce restriction or the like factor, make us begin the development of the stress-resistant solid seaweed fertilizer of novelty.
The raw material that existing similar patent of invention is used is fresh marine alga.Chinese invention patent (August 14 2002 applying date, the patent No.: ZL 99 1 12311.5), a kind of " growing agent for seaweed plant and production technique " disclosed, it is to be raw material with fresh marine alga, does not add any pharmaceutical chemicals, under cold condition, through cell walls fragmentation to marine alga, close composition strippings all in the marine alga, through cryogenic freezing, filtration, concentrated, sterilization, be made into liquid growing agent for seaweed plant then.Its weak point is: use fresh marine alga to be subjected to producing the restriction in season as raw material; and the location problem of manufacturer (production site will border on the sea, otherwise the transportation production cost increases impossible formation large-scale production); product is a liquid, and packing and transportation have certain restriction.
Summary of the invention
The object of the present invention is to provide a kind of preparation method with stress-resistant seaweed fertilizer of certain cold-resistant and drought resistance, it can improve output, increases the output ratio, and has tangible degeneration-resistant effect.
Technical scheme of the present invention is:
A kind of preparation method of stress-resistant seaweed fertilizer, step is as follows:
1) uses the air dried marine alga, remove impurity and exotic;
2) fresh water of 7～10 times of marine alga weight of adding is regulated pH=8.5～9.0 with dilute alkaline soln;
3) stir immersion 10～24 hours, be evaporated to proportion=1.2-1.3, the centrifugal high temp. salt that removes;
4) dry substance of separating out separates standby after concentrated solution and the cooling;
5) get fresh marine alga, the adding weight concentration is 95% ethanol, and add-on is 40～50% of a marine alga weight;
6) with the frond fragmentation, to stir 18～24 hours, solution is preserved in centrifugal back;
7) solution concentration is removed freshen, keeps clear soln;
8) clear soln is cooled to 0-5 ℃, adds saturated diaminotetrathiocyanodiammonochromate (Reinecke's salt) solution;
9) collecting precipitation;
10) with concentrated solution, dry substance, the throw out three uniform mixing of marine alga;
11) spraying drying obtains instant stress-resistant seaweed fertilizer dry product.
Marine alga described in the described step 1) is cut into the fritter of 2～3cm with knife mill.
Marine alga described in the described step 5) is cut into the fritter of 2～3cm with knife mill.
The invention has the beneficial effects as follows:
1, the technology of preparing of stress-resistant seaweed fertilizer of the present invention and Chinese invention patent (August 14 2002 applying date; the patent No.: ZL 99 1 12311.5) compares; the marine alga raw material that this patent is used is fresh marine alga; what the present invention used is air dried marine alga and fresh marine alga; use fresh marine alga to be subjected to producing the restriction in season as raw material fully; and the location problem of manufacturer (production site will border on the sea, otherwise the transportation production cost increases impossible formation large-scale production).In addition, this patent can be prepared liquid growing agent for seaweed plant, it is different fully that the present invention and this patent are compared technology of preparing, the technology of preparing of the stress-resistant seaweed fertilizer that the present invention relates to, what produce is the instant seaweed fertilizer with certain cold-resistant and drought resistance of solid state, use the exsiccant marine alga as raw material, soften extraction with diluted alkaline, concentration process is to reach the purpose of removing high temp. salt by the unique technique of controlling proportion.
2, the seaweed fertilizer of technology of preparing production of the present invention not only can improve output, increases the output ratio, and has tangible degeneration-resistant effect.The stress-resistant seaweed fertilizer refers to has output, drought resisting and the anti-cold effect of increasing, and uses the solid marine alga fertilizer of marine alga as raw material production.Because the present invention has carried out having drought resisting in the marine alga, the research of the biologically active substance of water conservation composition, therefore the innovative point of stress-resistant seaweed fertilizer is not only to use the effective constituent in the weak base extractive technique extraction marine alga, and used hydrometer method to control concentrating degree, simultaneously extracted, concentrated the functionally active material that has drought resisting, water conservation in the marine alga again, and applied it in the seaweed fertilizer.
3, the present invention is fit to the medium-sized and small enterprises production of national various territorial environments.
4, production technique of the present invention is simple, and is with low cost.The stress-resistant seaweed fertilizer that existing agricultural experiment proof uses the present invention to produce has tangible volume increase and cold-resistant, drought resisting effect.
Description of drawings
Fig. 1 is world's marine alga output distribution plan.
Embodiment
Embodiment 1
Get the sea-tangle that 100 kilograms of air dried are propagated artificially, water flushing removing impurity and exotic.With knife mill the exsiccant sea-tangle is cut into the fritter of 2-3CM, adds 900 kilograms of fresh water, regulate pH to 8.5-9.0 with NaOH.Constantly stir and soak after 24 hours, concentrate, constantly check proportion with specific gravity hydrometer with the concentrating under reduced pressure vaporizer.When proportion was 1.2-1.3, concentrated solution directly entered whizzer by the discharge port of vaporizer, because this moment, existing high temp. salt was constantly separated out.After whizzer removes high temp. salt, the centrifuge mother liquor cooling, and constantly have dry substance to separate out.Collect dry substance and keep the extraction mother liquor standby.
The fresh marine alga of 10 kilograms of choppings adds 4 kilogram weights of concentration and is 95% ethanolic soln, goes into the beating crusher fragmentation after the stirring.
Constantly stir after 24 hours, centrifugal.Centrifuge mother liquor concentrates, and removes the salinity that is attached on the wall.The concentrated solution that removes salinity is cooled to 0-5 ℃, slowly adds saturated Reinecke's salt solution, and the collecting precipitation thing is standby.
With extraction mother liquor, dry substance, the throw out uniform mixing of marine alga, spraying drying obtains instant stress-resistant seaweed fertilizer.
Embodiment 2
Get 80 kilograms of exsiccant sea-tangles, the green alga of 20 kilograms of self-sows (sea lettuce or Enteromorpha) is directly removed impurity and exotic.With knife mill the exsiccant sea-tangle is cut into the fritter of 2-3CM, green alga keeps whole without stripping and slicing.In the dry sea-tangle of chopping, add 750 kilograms of fresh water, add NaOH and regulate pH ≈ 8.5-9.0, add green alga and 150 kilograms of fresh water after 12 hours, regulate pH to original level.Constantly stir after 12 hours, concentrate with the concentrating under reduced pressure vaporizer.When the proportion that is concentrated to solution is 1.2-1.3, concentrated solution is directly pumped into whizzer by the discharge port of vaporizer, because this moment, existing high temp. salt was slowly separated out.Remove high temp. salt with whizzer.Centrifuge mother liquor cools off, along with constantly having dry substance to separate out in the cooling mother liquor.Collect dry substance and keep the extraction mother liquor standby.
10 kilograms of fresh sea-tangles of being cut into 10-20cm add 4.5 kilogram weights of concentration and are 95% ethanolic soln, go into the beating crusher fragmentation after the stirring.Constantly stir after 20 hours, centrifugal.Centrifuge mother liquor concentrates, and removes the salinity that is attached on the wall.The concentrated solution that removes salinity is cooled to 2-4 ℃, slowly adds saturated Reinecke's salt solution, and the collecting precipitation thing is standby.
With extraction mother liquor, dry substance, the throw out uniform mixing of marine alga, spraying drying obtains instant stress-resistant seaweed fertilizer.
Get the green alga of 100 kilograms of self-sows, impurity and exotic are removed in the water flushing, add 1000 kilograms of fresh water, regulate pH to 8.8 with NaOH.Constantly stir and soak after 10 hours, concentrate, constantly check proportion with specific gravity hydrometer with the concentrating under reduced pressure vaporizer.When proportion was 1.25, concentrated solution directly entered whizzer by the discharge port of vaporizer, because this moment, existing high temp. salt was constantly separated out.After whizzer removes high temp. salt, the centrifuge mother liquor cooling, and constantly have dry substance to separate out.Collect dry substance and keep the extraction mother liquor standby.
The fresh marine alga of 10 kilograms of choppings adds 5 kilogram weights of concentration and is 95% ethanolic soln, goes into the beating crusher fragmentation after the stirring.
Constantly stir after 18 hours, centrifugal.Centrifuge mother liquor concentrates, and removes the salinity that is attached on the wall.The concentrated solution that removes salinity is cooled to 3 ℃, slowly adds saturated Reinecke's salt solution, and the collecting precipitation thing is standby.
With extraction mother liquor, dry substance, the throw out uniform mixing of marine alga, spraying drying obtains instant stress-resistant seaweed fertilizer.
The stress-resistant alga fertilizer of producing with this kind technology experimental results show that by the farmland in the Northwest; It is tool not only Obvious effect of increasing production is arranged, and also have good drought resisting, the degeneration-resistant effect such as cold-resistant. The present invention is typical sea The application of ocean biotechnology on agricultural becomes the desirable weak point of some medium-sized and small enterprises, flat, fast project investment.
Claims (3)
1, a kind of preparation method of stress-resistant seaweed fertilizer is characterized in that step is as follows:
1) uses the air dried marine alga, remove impurity and exotic;
2) fresh water of 7～10 times of marine alga weight of adding is regulated pH=8.5～9.0 with dilute alkaline soln;
3) stir immersion 10～24 hours, be evaporated to proportion=1.2-1.3, the centrifugal high temp. salt that removes;
4) dry substance of separating out separates standby after concentrated solution and the cooling;
5) get fresh marine alga, the adding weight concentration is 95% ethanol, and add-on is 40～50% of a marine alga weight;
6) with the frond fragmentation, to stir 18～24 hours, solution is preserved in centrifugal back;
7) solution concentration is removed freshen, keeps clear soln;
8) clear soln is cooled to 0-5 ℃, adds saturated diaminotetrathiocyanodiammonochromate solution;
9) collecting precipitation;
10) with concentrated solution, dry substance, the throw out three uniform mixing of marine alga;
11) spraying drying obtains instant stress-resistant seaweed fertilizer dry product.
2, according to the preparation method of the described stress-resistant seaweed fertilizer of claim 1, it is characterized in that: marine alga described in the described step 1) is cut into the fritter of 2～3cm with knife mill.
3, according to the preparation method of the described stress-resistant seaweed fertilizer of claim 1, it is characterized in that: marine alga described in the described step 5) is cut into the fritter of 2～3cm with knife mill.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03133732 CN1219729C (en) | 2003-07-16 | 2003-07-16 | Process for preparing stress-resistance seaweed fertilizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03133732 CN1219729C (en) | 2003-07-16 | 2003-07-16 | Process for preparing stress-resistance seaweed fertilizer |
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| CN1569755A true CN1569755A (en) | 2005-01-26 |
| CN1219729C CN1219729C (en) | 2005-09-21 |
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| CN 03133732 Expired - Fee Related CN1219729C (en) | 2003-07-16 | 2003-07-16 | Process for preparing stress-resistance seaweed fertilizer |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101538172B (en) * | 2009-04-29 | 2011-11-30 | 秦怀跃 | Method for hydrolyzing seaweed |
| CN102515938A (en) * | 2011-11-25 | 2012-06-27 | 华侨大学 | Preparation method of algae fertilizer |
| CN101485343B (en) * | 2009-03-02 | 2013-06-05 | 中国海洋大学生物工程开发有限公司 | Extraction technology of active ingredients of enteromorpha and preparation method of enteromorpha seaweed fertilizer |
| CN104177136A (en) * | 2013-05-21 | 2014-12-03 | 徐波勇 | Method for extracting active substances for fertilizers from algae |
| CN106008094A (en) * | 2016-05-23 | 2016-10-12 | 青岛海大生物集团有限公司 | Seaweed potassium fertilizer and preparation method thereof |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101439995B (en) * | 2008-12-22 | 2010-12-22 | 中国水产科学研究院黄海水产研究所 | Clean production method of seaweed fertilizer |
-
2003
- 2003-07-16 CN CN 03133732 patent/CN1219729C/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101485343B (en) * | 2009-03-02 | 2013-06-05 | 中国海洋大学生物工程开发有限公司 | Extraction technology of active ingredients of enteromorpha and preparation method of enteromorpha seaweed fertilizer |
| CN101538172B (en) * | 2009-04-29 | 2011-11-30 | 秦怀跃 | Method for hydrolyzing seaweed |
| CN102515938A (en) * | 2011-11-25 | 2012-06-27 | 华侨大学 | Preparation method of algae fertilizer |
| CN104177136A (en) * | 2013-05-21 | 2014-12-03 | 徐波勇 | Method for extracting active substances for fertilizers from algae |
| CN106008094A (en) * | 2016-05-23 | 2016-10-12 | 青岛海大生物集团有限公司 | Seaweed potassium fertilizer and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1219729C (en) | 2005-09-21 |
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