CN1850734A - Method for preparing multi-peptide urea and its use in farm production - Google Patents
Method for preparing multi-peptide urea and its use in farm production Download PDFInfo
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- CN1850734A CN1850734A CN 200610080721 CN200610080721A CN1850734A CN 1850734 A CN1850734 A CN 1850734A CN 200610080721 CN200610080721 CN 200610080721 CN 200610080721 A CN200610080721 A CN 200610080721A CN 1850734 A CN1850734 A CN 1850734A
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Abstract
This invention relates polypeptide urea, it includes polypeptide and urea. The polypeptide content is 0.01-1.5 percent of whole weight; urea content is 98.5-99.99 percent. This invention also relates to the polypeptide urea preparation method, the polypeptide is directly mixed with melted urea, then granulating in urea granulating tower. This invention also relates to the polypeptide application in agriculture.
Description
Technical field:
The present invention relates to a kind of synergistic urea that contains polypeptide, and the preparation method and the effect thereof of peptide urea are provided.
Background technology
Urea is the highest kind of nitrogen content in the chemical fertilizer, also is the maximum kind of chemical fertilizer usage quantity, owing to can't accomplish to apply fertilizers scientifically at present, has every year nearly ten million ton of urea to run off, and not only causes the resource significant wastage but also pollutes for environment, atmosphere and water body.In order to reduce the pollution of chemical fertilizer to soil and environment, improve its utilising efficiency, those skilled in the art has done a lot of modifications to urea, dihydro-amine urea, urea formadehyde, polymer capsule urea, bag Thio Urea or the like have for example been developed, all be for slow released urea and controlled release, up to now, it is little to produce effects, and can't be extensive use of on agricultural.Trace it to its cause is that the coated fertilizer that slow, control chamber urea that present countries in the world produce mostly do not possess metastable controlled release time, coated carbamide accounts for urea 3～15% weight, both influenced the normal nitrogen content of urea, also cause some chemical that are difficult to biodegradable macromolecular material to the soil secondary pollution, its effect also lacks unified the evaluation, is difficult to big area and promotes the use of.
The peptide that is formed by connecting by many amino acid is called polypeptide, farming object internal memory has very strong natural bioactive peptide, relate to crop growth, growth, cell fission, information transmission, immune control, anti-ageing, physiological clock rule and molecular evolution etc., the penetrativity of its biological activity of natural polypeptides, stability, solvability, pair cell has limitation, can only utilize the synthetic polypeptide of simulation to replace natural polypeptides.
Summary of the invention
Since urea-modifiedly have an above-mentioned deficiency, the present invention seeks to for a kind of peptide urea is provided.Be to be raw material artificial synthetic polypeptide soluble metallic salt with amino acid with biotechnology, this product has no effect to the specification of urea, can prolong urea time of releasing in soil, and can not give soil and any pollution of crop and pay effect, endogenous growth element to crop is regulated and control comprehensively, obviously improves the urea utilization ratio, increases crop anti-adversity, increase considerably crop yield, improve the quality.
Peptide urea of the present invention, comprise polypeptide metal-salt and urea, in peptide urea gross weight soluble polypeptide metal-salt content is 0.01～1.5 weight %, and urea content is 98.5～99.99 weight %, and best polypeptide soluble metallic salt is 0.04～0.08 weight %.
Peptide urea of the present invention, be characterized in that similar and different aminoacid polymers is dissolved in formation polypeptide soluble metallic salt in the alkaline hydrated oxide solution, polypeptide can be formed in the copolymerization of certainweight ratio by L-L-glutamic acid, L-aspartic acid, L-Methionin, L-L-Ala and glycine, or and each personal biochemical process of above-mentioned amino acid or chemical method be polymerized.Polypeptide is insoluble in the water, but in the dissolving basic solution, basic solution can be potassium oxyhydroxide or sodium oxyhydroxide, also can be the oxyhydroxide of zinc or magnesium, generate the soluble polypeptide metal-salt, its molecular weight is between 1000～10000, and aforementioned polypeptides and polypeptide metal-salt synthetic method are the technology that our company develops alone.
The present invention also provides production of polypeptide urea, and polypeptide is quantitative and fusing urea uniform mixing with the soluble polypeptide metal salt solution.Wherein the mass ratio of urea and soluble polypeptide metal-salt is 1000: (10～50), granulation in urea prilling tower then finally makes peptide urea of the present invention.Polypeptide metal-salt content is that 1～40 weight % can join uniform mixing in the molten urea solution moisture evaporation device usually in the common urea production process in the soluble polypeptide aqueous metal salt, and this vaporizer is positioned at before the urea prilling tower.Shown in the following accompanying drawing 1 of production of polypeptide urea of the present invention.
With polypeptide soluble metal salts solution with pump delivery to the urine evaporation device, all the other all processing condition are identical with the common urea manufacturing condition.
The polypeptide soluble metal salts solution that the present invention uses has the anion surfactant characteristics, and it is granular urea that it and urine mix moulding, and the surface easily generates electrostatic double layer, helps preventing urea from caking.
The present invention also provides the application of peptide urea in agricultural, aforementioned polypeptides urea is applied to field crop, cash crop, fruits and vegetables, flowers, can promote inside plants to regulate and control the Physiology and biochemistry effect comprehensively, give full play to plant endogenous growth hormone, promote to nourish and grow, raising is to urea utilization and absorption, and its efficient can be increased to about 20%.
Peptide urea of the present invention and common urea color and granulometric facies are same, and granularity is the 0.85～2.8mm of urea national Specification.For distinguishing common urea, can add different dyes, make peptide urea make other color, for example yellowish, pale blue, pale green or the like is added dyestuff and be should be nontoxic, free of contamination dyestuff.
Description of drawings
Fig. 1 is production of polypeptide urea figure
1, carbonic acid gas 2, liquefied ammonia 3, polypeptide metal salt solution 4, synthetic 5, absorb 6, volume pump 7, send out steaming device 8, prilling tower 9, peptide urea
Embodiment
Following example only is to further specify the present invention, is not the restriction the scope of protection of the invention.
Embodiment 1:
Employed soluble polypeptide metal-salt physico-chemical property
Solubleness: 50g/100 restrains water
Content: 10～40 weight %
PH value: 6.0～8.5
Molecular weight distribution: 1000～10000
Prepare 30% soluble polypeptide aqueous metal salt, with urea: polypeptide metal-salt=1000: the ratio of (0.05～0.07) is by volume pump and under meter, flow is that the feed rate of 90 kilograms/hour (are equivalent to 75 liters/hour) evenly joins the polypeptide aqueous metal salt in the vaporizer, with 140 ℃ of left and right sides molten urea solution uniform mixing.In prilling tower, making 45 tons of/hour particle peptide ureas, granularity 0.85～2.8mm then.The specification of peptide urea sees Table (1)
Table (1) peptide urea product quality indicator
| Index | Peptide urea |
| Moisture content | 0.41％ |
| Biuret | 0.55％ |
| Nitrogen content | 46.2％ |
| Color | Faint yellow |
| Polypeptide metal-salt content (weight) | 0.061％ |
| Peptide urea size range 0.85～2.8mm | 97％ |
Reference examples: the operating procedure condition is identical with example one.Do not add the polypeptide metal-salt, the ordinary production gained industrial urea specification of quality is as table (2)
Table (2) reference examples urea quality index
| Index | Common urea |
| Moisture content | 0.48％ |
| Biuret | 0.78％ |
| Nitrogen content | 46.2％ |
| Color | White |
| Urea size scope 0.85～2.8mm | 94.0％ |
Embodiment 2 peptide ureas close at the Yucheng, Shandong food and raise village's winter wheat manurial experiment test conditions:
5 mu of wheats use the peptide urea of embodiment 1 production to apply fertilizer.50 kilograms/mu of usage quantitys, control group are used the common urea fertilising.Usage quantity also is 50 kilograms/mu.
Test-results:
Use the wheat leaf look of peptide urea dark green, blade is roomy, well developed root system, and robust plant, the growing way height, disease and pest is light.Data see Table (3)
Table (3) wheat paddock is executed the test-results of peptide urea
| Test group | Plant height (centimetre) | The mu spike number | Grain number per spike | Thousand seed weight (gram) | Output (kilogram/mu) | Effect of increasing production % |
| Peptide urea | 80 | 368425 | 38 | 38.1 | 455 | 21 |
| Common urea | 70 | 298991 | 39.6 | 37.7 | 375 |
Find out in the table that the effect of increasing production peptide urea is than common urea volume increase 21%
Embodiment 3: use embodiment 1 peptide urea, to winter wheat decrement manurial experiment effect
Test conditions
4 mu of experimental field of wheat are executed 20 kilograms of peptide ureas for every mu
40 kilograms of common ureas are executed for every mu in 2 mu of wheat controlled trial fields
Test-results sees Table (4)
Table (4) uses peptide urea to wheat paddock decrement manurial experiment result
| Test group | Plant height (centimetre) | The mu spike number | Grain number per spike | Thousand seed weight (gram) | Output (kilogram/mu) | Effect of increasing production % |
| Peptide urea | 95 | 379620 | 29 | 50 | 468 | 16 |
| Common urea | 90 | 455549 | 25 | 41.5 | 402 |
Find out in the table and execute the fertilising of peptide urea decrement, per mu yield still increases by 16%.
The peptide urea of embodiment 4 use-cases one is used for fertilising of corn field equivalent and decrement fertilising.
Test conditions:
Corn variety is merely beautiful No. 18
Experimental plot edaphic condition is identical, the control measures unanimity.3 test contrasts are established for 50 square metres in the experimental plot.Execute 30 kilograms/mu of peptide ureas, 24 kilograms/mu; Execute 30 kilograms/mu of common ureas.
Test-results sees Table (5)
Table (5) peptide urea is to fertilising of corn equivalent and decrement manurial experiment result
| Test group | Rate of fertilizer application (kilogram/mu) | Thousand seed weight (gram) | Output (kilogram/mu) | Effect of increasing production (weight %) |
| The fertilising of peptide urea equivalent | 30 | 302 | 564 | 15 |
| The fertilising of peptide urea decrement | 24 | 294 | 480 | |
| Common urea | 30 | 286 | 482 |
The corn performance leaf look dark green of executing peptide urea, and it is fast to grow, and blade is roomy.It is high 10～20 centimeters that the plant height ratio is executed common urea, and heading was weaved silk early 2～3 days, and mealie is grown to the top, and the equivalent fertilising is increased production 15 weight % than common urea; Reduce and use peptide urea 20 weight %.Corn yield still keeps same level with the corn of executing common urea.
Embodiment 5 use-cases-peptide urea is used for fertilising of cotton equivalent and decrement manurial experiment
Test conditions:
Cotton variety grinds No. 22 for the Shanxi cotton.Experimental plot edaphic condition is identical, plantation management condition unanimity.50 square metres of experimental plots.Test-results sees Table (6).
Table (6) peptide urea is to the fertilising of cotton equivalent, decrement manurial experiment
| Test group | Rate of fertilizer application (kilogram) | Cotton boll heavy (gram) | Output of cotton (kilogram/mu) | Effect of increasing production |
| The fertilising of peptide urea equivalent | 35.5 | 6.21 | 259 | 16.7 |
| The fertilising of peptide urea decrement | 28.8 | 6.13 | 243 | 10.1 |
| Common urea | 35.5 | 5.87 | 222 |
Test-results finds out that to execute peptide urea cotton test field growth vigorous, and leaf is dark green, and cotton buds and bolls exfoliation is few, and Cheng Tao is many, cotton boll blowing early 5～7 days, peptide urea equivalent fertilising volume increase 16.7%.Even decrement fertilising 20% also can increase by 10.1% output.
Above embodiment has narrated optimization test mode of the present invention, is not to be used for limiting the present invention.Those skilled in the art can not depart from the improvement and the variation of category of the present invention and spirit to embodiment disclosed herein.
Claims (9)
1, a kind of peptide urea is characterized in that comprising polypeptide and urea, and wherein in the peptide urea gross weight, soluble polypeptide metal-salt content is 0.01～1.5 weight %, and content of urea is 98.5～99.99 weight %.
2, peptide urea according to claim 1 is characterized in that in the peptide urea gross weight content of polypeptide is 0.04～0.08%.
3, peptide urea according to claim 1 is characterized in that polypeptide is that different amino acid or identical amino acid condensation become polypeptide, generates the soluble polypeptide metal-salt then in alkaline medium.
4, polypeptide metal-salt according to claim 3, it is characterized in that L-L-glutamic acid, L-aspartic acid, L-Methionin, the L-L-Ala is any becomes polypeptide with glycine copolymerization or autohemagglutination, generates the soluble polypeptide aqueous metal salt with alkali metal hydroxide or alkaline earth metal hydroxides reaction then.
5, polypeptide metal-salt according to claim 4, the molecular weight that it is characterized in that polypeptide is 1000～10000.
6, the preparation method of the described peptide urea of claim 1, it is characterized in that polypeptide is quantitative and molten urea solution uniform mixing with the polypeptide metal salt solution, wherein the mass ratio of urea and polypeptide metal salt solution is 1000: (1.0～5.0), and then in the urea prilling tower granulation.
7, according to the described preparation method of claim 6, it is characterized in that wherein said polypeptide metal salt solution is in aqueous solution weight, polypeptide metal-salt content is 1～40 weight %.
8, according to the described preparation method of claim 6, it is characterized in that described polypeptide metal salt solution is joined in the urine moisture evaporation device, this vaporizer is positioned at before the prilling tower, the polypeptide metal-salt in urine concentration and evaporation process with the urine uniform mixing.
9, the application of the described peptide urea of a kind of claim 1 in agricultural is characterized in that described peptide urea is applied to various field crops, cash crop, fruits and vegetables, flowers in the agricultural.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610080721 CN1850734A (en) | 2006-05-15 | 2006-05-15 | Method for preparing multi-peptide urea and its use in farm production |
| CN2007101068675A CN101074182B (en) | 2006-05-15 | 2007-05-14 | Production of polypeptide urea and its use in agriculture |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610080721 CN1850734A (en) | 2006-05-15 | 2006-05-15 | Method for preparing multi-peptide urea and its use in farm production |
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| CN1850734A true CN1850734A (en) | 2006-10-25 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103102220A (en) * | 2013-02-04 | 2013-05-15 | 桂林菲科特生物科技有限公司 | High-energy peptide urea |
| CN103204710A (en) * | 2013-05-02 | 2013-07-17 | 山东兴达化工有限公司 | Preparation method of polypeptide ammonium sulfate and application in agriculture |
| CN105948850A (en) * | 2016-04-26 | 2016-09-21 | 山西兰花科技创业股份有限公司 | Polypeptide chelated potassium zinc urea fertilizer and preparation method thereof |
| CN107417469A (en) * | 2017-08-23 | 2017-12-01 | 无为县群鑫生态农业有限公司 | One kind improves corn quality slow-release fertilizer |
| WO2019200929A1 (en) * | 2018-04-20 | 2019-10-24 | 刘长德 | Cyromazine urea particles and preparation method therefor |
-
2006
- 2006-05-15 CN CN 200610080721 patent/CN1850734A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103102220A (en) * | 2013-02-04 | 2013-05-15 | 桂林菲科特生物科技有限公司 | High-energy peptide urea |
| CN103204710A (en) * | 2013-05-02 | 2013-07-17 | 山东兴达化工有限公司 | Preparation method of polypeptide ammonium sulfate and application in agriculture |
| CN103204710B (en) * | 2013-05-02 | 2015-11-04 | 山东兴达化工有限公司 | The preparation method of polypeptide ammonium sulfate and the application in agricultural thereof |
| CN105948850A (en) * | 2016-04-26 | 2016-09-21 | 山西兰花科技创业股份有限公司 | Polypeptide chelated potassium zinc urea fertilizer and preparation method thereof |
| CN107417469A (en) * | 2017-08-23 | 2017-12-01 | 无为县群鑫生态农业有限公司 | One kind improves corn quality slow-release fertilizer |
| WO2019200929A1 (en) * | 2018-04-20 | 2019-10-24 | 刘长德 | Cyromazine urea particles and preparation method therefor |
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