CN105693379A - Seaweed polyglutamic acid urea and production method thereof - Google Patents
Seaweed polyglutamic acid urea and production method thereof Download PDFInfo
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- CN105693379A CN105693379A CN201610035569.0A CN201610035569A CN105693379A CN 105693379 A CN105693379 A CN 105693379A CN 201610035569 A CN201610035569 A CN 201610035569A CN 105693379 A CN105693379 A CN 105693379A
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- polyglutamic acid
- carbamide
- sargassum
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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
- C05C—NITROGENOUS FERTILISERS
- C05C9/00—Fertilisers containing urea or urea compounds
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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
- C05G3/90—Mixtures of one or more fertilisers with additives not having a specially fertilising activity for affecting the nitrification of ammonium compounds or urea in the soil
Abstract
The invention relates to seaweed polyglutamic acid urea and a production method thereof. Active seaweed concentrated solution and low-molecular-weight gamma-polyglutamic acid are added to urea melt between a first evaporator and a second evaporator of a urea prilling tower, and the seaweed polyglutamic acid urea is obtained through prilling of the prilling tower. The seaweed concentrated solution and polyglutamic acid fermentation liquid exist in urea in the forms of seaweed solid matter and gamma-polyglutamic acid finally. The utilization rate of the urea can be increased, the functions of growth promotion, stress resistance and fertilizer conservation are realized, no urea residue is left in soil, environment pollution is avoided, environment friendliness is realized, and application prospects are broad.
Description
[technical field]
The invention belongs to technical field of fertilizer production。More particularly it relates to an Sargassum polyglutamic acid carbamide, further relate to the production method of described Sargassum polyglutamic acid carbamide。
[background technology]
Carbamide is the principal item of China's chemical nitrogen fertilizer, accounts for the 65% of nitrogenous fertilizer total amount consumed。Carbamide is strong because of its activity, and loss access is many, and utilization rate only has 30%～40%。Big quantity research proves both at home and abroad, substantially directly can not retained in soil by the nitrogen of crop utilization。The utilization ratio of China's farmland nitrogenous fertilizer has been at relatively low level, not only causes the huge waste of the energy and resource, and environment is also resulted in serious threat。Common urea is carried out increment modified, develop increment carbamide new product, be raising utilization rate of nitrogen fertilizer, reduce loss and the important channel of attenuating environmental risk。
Sargassum extract is with natural seaweed for raw material, biochemical process is adopted to carry out full nutrition extraction, rich in Sargassum polysaccharides, Algin, glycine betaine, endogenous hormones (auximone, gibberellins, zeatin etc.), phenolic compound, mannitol and vitamin etc., there is significantly high biological activity。
It is a kind of water miscible high molecular polymer that gamma-polyglutamic acid-(is called for short γ-PGA), there is good water solublity, superpower adsorptivity and biodegradability, it is the environment-friendly type macromolecule material of a kind of high-quality, is with a wide range of applications in fields such as agricultural, environmental protection, control of desert, food and medicines。
Sargassum extract, gamma-polyglutamic acid-and carbamide are organically combined, is possible not only to improve the utilization rate of carbamide, and carbamide can be made to have, and growth-promoting is degeneration-resistant, the function of fertilizer conservation water conservation, it is achieved the potentiation of carbamide。
China technical staff utilizes Sargassum and gamma-polyglutamic acid-Modified Urea to have been carried out substantial amounts of work, a kind of Algae synergistic carbamide and production method thereof and purposes is disclosed such as CN102515945A, adopting Production by Microorganism Fermentation seaweed extracted liquor, then urea melting liquid and Algae synergistic liquid are granulated in urea prilling tower and are obtained Algae synergistic carbamide。The preparation method that CN101486619A discloses a kind of seaweed urea, the seaweed extracted liquor raised by alkali and fusing urea solution Homogeneous phase mixing, then pelletize in granulation tower, make seaweed urea product。CN102584495A discloses a kind of slow-release carbamide containing gamma-polyglutamic acid-and urease inhibitor and preparation method thereof, and the coated slow-release liquid containing gamma-polyglutamic acid-and urease inhibitor is sprayed on urea granules outer surface, post-drying prepare slow-release carbamide。CN101117303A discloses a kind of poly-gama-glutamic acid building fertilizer, sprayer unit is adopted fully to be atomized by the aqueous solution of poly-gamma-glutamic acid or its salt, uniformly spray in the surface of finished product chemical fertilizer granule, make the abundant peplos of chemical fertilizer granule, obtain poly-gama-glutamic acid building fertilizer then through dried。But, these technology all adopt single Sargassum extract or gamma-polyglutamic acid-, the present invention is using Sargassum extract and two kinds of materials of gamma-polyglutamic acid-as synergist, the fertilizer conservation water retaining function of degeneration-resistant for the growth-promoting of Sargassum effect and polyglutamic acid is organically combined, thus developing a kind of multiple-effect to unify the new urea of comprehensive potentiation。
[summary of the invention]
[solving the technical problem that]
It is an object of the invention to provide a kind of Sargassum polyglutamic acid carbamide。
It is a further object to provide the production method of described Sargassum polyglutamic acid carbamide。
[technical scheme]
The present invention is achieved through the following technical solutions。
The present invention relates to the production method of a kind of Sargassum polyglutamic acid carbamide。
The step of this production method is as follows:
Between one section of evaporator section and the dual circulation section of existing urea granulation tower, pipeline pump is utilized to join in urea melting liquid by effusion meter by active alga concentrated solution and gamma-polyglutamic acid-fermentation liquid, then through granulation tower pelletize, obtain described Sargassum polyglutamic acid urea product；Wherein, described active alga concentrated solution is 4～9:1 with the weight ratio of gamma-polyglutamic acid-fermentation liquid；The synergy liquid being made up of active alga concentrated solution and gamma-polyglutamic acid-fermentation liquid and the weight ratio of carbamide are 10～30:1000。
Another kind of preferred implementation according to the present invention, the soluble solids content of described active alga concentrated solution is by weight 20%～25%。
Another kind of preferred implementation according to the present invention, the gamma-polyglutamic acid-content of described gamma-polyglutamic acid-fermentation liquid is 38～45g/l。
Another kind of preferred implementation according to the present invention, the synergy liquid being made up of active alga concentrated solution and gamma-polyglutamic acid-fermentation liquid and the weight ratio of carbamide are 14～26:1000。
The weight ratio of the another kind of preferred implementation according to the present invention, described active alga concentrated solution and gamma-polyglutamic acid-fermentation liquid is 5～8:1。
Another kind of preferred implementation according to the present invention, the synergy liquid being made up of active alga concentrated solution and gamma-polyglutamic acid-fermentation liquid and the weight ratio of carbamide are 18～22:1000。
The weight ratio of the another kind of preferred implementation according to the present invention, described active alga concentrated solution and gamma-polyglutamic acid-fermentation liquid is 6～7:1。
The present invention relates to a kind of Sargassum polyglutamic acid carbamide。Described Sargassum polyglutamic acid carbamide contains the carbamide in Sargassum polyglutamic acid weight of urea 0.045～0.88% Sargassum concentrate, 0.001～0.05% gamma-polyglutamic acid-and surplus。
A preferred embodiment of the invention, described Sargassum polyglutamic acid carbamide contains the carbamide in Sargassum polyglutamic acid weight of urea 0.090～0.50% Sargassum concentrate, 0.002～0.030% gamma-polyglutamic acid-and surplus。
Another kind of preferred implementation according to the present invention, described Sargassum polyglutamic acid carbamide contains the carbamide in Sargassum polyglutamic acid weight of urea 0.19～0.40% Sargassum concentrate, 0.003～0.020% gamma-polyglutamic acid-and surplus。
The present invention is described in more detail below。
The present invention relates to the production method of a kind of Sargassum polyglutamic acid carbamide。Specifically may refer to the process chart that accompanying drawing 1 describes。
The step of this production method is as follows:
Between one section of evaporator section and the dual circulation section of existing urea granulation tower, pipeline pump is utilized to join in urea melting liquid by effusion meter by active alga concentrated solution and gamma-polyglutamic acid-fermentation liquid, then through granulation tower pelletize, obtain described Sargassum polyglutamic acid urea product；Wherein, described active alga concentrated solution is 4～9:1 with the weight ratio of gamma-polyglutamic acid-fermentation liquid；The synergy liquid being made up of active alga concentrated solution and gamma-polyglutamic acid-fermentation liquid and the weight ratio of carbamide are 10～30:1000。
In the present invention, described active alga concentrated solution is to produce according to the CN104892157A method described, and the soluble solids content of described active alga concentrated solution is by weight 20%～25%。
Described Sargassum concentrated solution contains 1～4%K by weight2O, 0.2～0.4%P2O5, 0.1～2%N, 6～8% organic matters, 0.01～0.02%Ca, 0.04～0.06%Mg, 1.2～2% alginic acid and 300～400mg/kg phytohormone。
In the present invention, described gamma-polyglutamic acid-fermentation liquid is to produce according to the CN104694437A method described, the gamma-polyglutamic acid-content of described gamma-polyglutamic acid-fermentation liquid is 38～45g/l, and the viscosity-average molecular weight of described gamma-polyglutamic acid-(PGA) is 1.9 × 105Da。
In the present invention, described Sargassum concentrated solution is 4～9:1 with the weight ratio of gamma-polyglutamic acid-fermentation liquid。If the weight ratio of Sargassum concentrated solution and gamma-polyglutamic acid-fermentation liquid is less than 4:1, then the moisture in synergy liquid is too high, can increase the energy consumption of evaporation process, be unfavorable for pelletize；If the weight ratio of Sargassum concentrated solution and gamma-polyglutamic acid-fermentation liquid is more than 9:1, then gamma-polyglutamic acid-content in carbamide is too low, does not reach the due result of use of product；Therefore, the weight ratio of Sargassum concentrated solution and gamma-polyglutamic acid-fermentation liquid is 4～9:1 is rational。
Preferably, Sargassum concentrated solution is 5～8:1 with the weight ratio of gamma-polyglutamic acid-fermentation liquid。
It is highly preferred that the weight ratio of Sargassum concentrated solution and gamma-polyglutamic acid-fermentation liquid is 6～7:1。
In the present invention, the synergy liquid being made up of active alga concentrated solution and gamma-polyglutamic acid-fermentation liquid and the weight ratio of carbamide are 14～26:1000。If the weight ratio of synergy liquid and carbamide is less than 14:1000, then the soluble solids content in Sargassum polyglutamic acid carbamide very little, does not have the effect of potentiation；If the weight ratio of synergy liquid and carbamide is more than 26:1000, then the soluble solids content in Sargassum polyglutamic acid carbamide is too high so that it is nitrogen content is difficult to reach the index of more than 46%。Therefore, the synergy liquid being made up of active alga concentrated solution and gamma-polyglutamic acid-fermentation liquid and the weight ratio of carbamide are 14～26:1000 is rational。
Preferably, the synergy liquid being made up of active alga concentrated solution and gamma-polyglutamic acid-fermentation liquid and the weight ratio of carbamide are 14～26:1000。
It is highly preferred that the weight ratio of the synergy liquid being made up of active alga concentrated solution and gamma-polyglutamic acid-fermentation liquid and carbamide is 18～22:1000。
The existing urea granulation tower that the present invention uses specifically may refer to the granulation tower in document " carbamide granulation technology and compare " used by common tower granulation。One section of wherein said evaporator section and dual circulation section are the dehydrations that those skilled in the art know, its evaporation equipment is vapor seperator, for instance the vaporizer that vaporizer that vaporizer that Yantai Ya Mei Metaux Speciaux S. A. sells with trade name Urea Evaporation device, Yantai one side's special equipment company limited sell with trade name Urea Evaporation device, Shandong Xin Rui chemical equipment company limited sell with trade name Urea Evaporation device。
Wherein, described pipeline pump is the pipeline pump that those skilled in the art know, such as the pipeline pump that Yangtze River, Zhejiang Beng Ye company limited sells with trade name ISW type horizontal pipeline centrifugal pump；The pipeline pump that sea, Yongjia, Zhejiang one pump valve company limited sells with trade name ISW horizontal pipeline centrifugal pump, ISG single stage single-sucking centrifugal pump。
Described effusion meter is the effusion meter that those skilled in the art know, for instance the effusion meter that Jiangsu Heng great finite instrument company sells with trade name HD-LGHX annular oriffice effusion meter, HD-LGBH orifice flowmeter；The effusion meter that Tong Chuan finite instrument company of Jinhu County sells with trade name TC-Z series V bevel-type effusion meter, TC-TY series oval gear flowmeter。
Standard method GB/T2441.1 is adopted to measure the nitrogen content in Sargassum polyglutamic acid carbamide of the present invention。
The present invention relates to a kind of Sargassum polyglutamic acid carbamide。Described Sargassum polyglutamic acid carbamide contains the carbamide in Sargassum polyglutamic acid weight of urea 0.045～0.88% Sargassum concentrate, 0.001～0.05% gamma-polyglutamic acid-and surplus。
Preferably, described Sargassum polyglutamic acid carbamide contains the carbamide in Sargassum polyglutamic acid weight of urea 0.090～0.50% Sargassum concentrate, 0.002～0.030% gamma-polyglutamic acid-and surplus。
It is highly preferred that described Sargassum polyglutamic acid carbamide contains the carbamide in Sargassum polyglutamic acid weight of urea 0.19～0.40% Sargassum concentrate, 0.003～0.020% gamma-polyglutamic acid-and surplus。
The present invention uses and is formed synergist by active alga concentrated solution and gamma-polyglutamic acid-fermentation liquid, dosing pump is utilized to join in urea melting liquid between one section of evaporation and the dual circulation of urea prilling tower, in the granulation process of high-tower granulation equipment, moisture in Sargassum concentrated solution and gamma-polyglutamic acid-fermentation liquid is boiled off, finally it is present in carbamide with the form of Sargassum solid content and polyglutamic acid, obtains a kind of Sargassum polyglutamic acid urea product。This is a kind of synergistic urea product having growth-promoting, degeneration-resistant, function of fertilizer retention concurrently, and this product does not remain in soil, free from environmental pollution, environmentally friendly。
Polyglutamic acid in the present invention is low viscosity product, has good mobility, solves the too big thickness of molecule and the operating difficulties problem brought, is beneficial to industrialized production。And in the fabrication process, synergist adds under urea melting state, its effect to be substantially better than direct spraying or be wrapped in the product of urea surface, Sargassum is connected with carbamide with chemical bond with polyglutamic acid molecule, intermolecular combination is more firm, and addition can make the effective ingredient of Sargassum and polyglutamic acid disperse evenly in the molten state, and the potentiation of carbamide is become apparent from。
[beneficial effect]
The invention has the beneficial effects as follows: the Sargassum polyglutamic acid carbamide of the present invention is a kind of synergistic urea product having growth-promoting, degeneration-resistant, function of fertilizer retention concurrently, and this product does not remain in soil, free from environmental pollution, environmentally friendly。In Sargassum polyglutamic acid process for producing urea of the present invention, synergist adds under urea melting state, its effect to be substantially better than direct spraying or be wrapped in the product of urea surface, Sargassum is connected with carbamide with chemical bond with polyglutamic acid molecule, intermolecular combination is more firm, and addition can make the effective ingredient of Sargassum and polyglutamic acid disperse evenly in the molten state, and the potentiation of carbamide is become apparent from。
[accompanying drawing explanation]
Fig. 1 is the production technological process of the Sargassum polyglutamic acid carbamide of the present invention。
[detailed description of the invention]
The present invention will be better understood when by following embodiment。
Embodiment 1: produce Sargassum polyglutamic acid carbamide of the present invention
The enforcement step of this embodiment is as follows:
Between one section of evaporator section and the dual circulation section of existing urea granulation tower, use the vaporizer that Yantai Ya Mei Metaux Speciaux S. A. sells with trade name Urea Evaporation device；Utilize the pipeline pump that Yangtze River, Zhejiang Beng Ye company limited sells with trade name ISW type horizontal pipeline centrifugal pump；By Jiangsu Heng great finite instrument company with trade name HD-LGHX annular oriffice effusion meter, the active alga concentrated solution that soluble solids content is by weight 20% is joined in urea melting liquid with the gamma-polyglutamic acid-fermentation liquid that gamma-polyglutamic acid-content is 40g/l, then through granulation tower pelletize, obtain described Sargassum polyglutamic acid urea product；Wherein, described active alga concentrated solution is 5:1 with the weight ratio of gamma-polyglutamic acid-fermentation liquid；The synergy liquid being made up of active alga concentrated solution and gamma-polyglutamic acid-fermentation liquid and the weight ratio of carbamide are 10:1000。
Adopting the method described in this specification to detect, the nitrogen content in Sargassum polyglutamic acid carbamide is 46.29%。
Embodiment 2: produce Sargassum polyglutamic acid carbamide of the present invention
The enforcement step of this embodiment is as follows:
Between one section of evaporator section and the dual circulation section of existing urea granulation tower, use the vaporizer that Yantai one side's special equipment company limited sells with trade name Urea Evaporation device；Utilize sea, Yongjia, Zhejiang one pump valve company limited with trade name ISW horizontal pipeline centrifugal pump, by the effusion meter that HD-LGBH orifice flowmeter is sold, the active alga concentrated solution that soluble solids content is by weight 22% is joined in urea melting liquid with the gamma-polyglutamic acid-fermentation liquid that gamma-polyglutamic acid-content is 38g/l, then through granulation tower pelletize, obtain described Sargassum polyglutamic acid urea product；Wherein, described active alga concentrated solution is 4:1 with the weight ratio of gamma-polyglutamic acid-fermentation liquid；The synergy liquid being made up of active alga concentrated solution and gamma-polyglutamic acid-fermentation liquid and the weight ratio of carbamide are 20:1000。
Adopting the method described in this specification to detect, the nitrogen content in Sargassum polyglutamic acid carbamide is 46.20%。
Embodiment 3: produce Sargassum polyglutamic acid carbamide of the present invention
The enforcement step of this embodiment is as follows:
Between one section of evaporator section and the dual circulation section of existing urea granulation tower, use the vaporizer that Shandong Xin Rui chemical equipment company limited sells with trade name Urea Evaporation device；Utilize the pipeline pump that ISG single stage single-sucking centrifugal pump is sold, by Tong Chuan finite instrument company of Jinhu County with trade name TC-Z series V bevel-type effusion meter, the active alga concentrated solution that soluble solids content is by weight 25% is joined in urea melting liquid with the gamma-polyglutamic acid-fermentation liquid that gamma-polyglutamic acid-content is 40g/l, then through granulation tower pelletize, obtain described Sargassum polyglutamic acid urea product；Wherein, described active alga concentrated solution is 7:1 with the weight ratio of gamma-polyglutamic acid-fermentation liquid；The synergy liquid being made up of active alga concentrated solution and gamma-polyglutamic acid-fermentation liquid and the weight ratio of carbamide are 30:1000。
Adopting the method described in this specification to detect, the nitrogen content in Sargassum polyglutamic acid carbamide is 46.0%。
Embodiment 4: produce Sargassum polyglutamic acid carbamide of the present invention
The enforcement step of this embodiment is as follows:
Between one section of evaporator section and the dual circulation section of existing urea granulation tower, use the vaporizer that Yantai Ya Mei Metaux Speciaux S. A. sells with trade name Urea Evaporation device；Utilize the pipeline pump that Yangtze River, Zhejiang Beng Ye company limited sells with trade name ISW type horizontal pipeline centrifugal pump, by the effusion meter that TC-TY series oval gear flowmeter is sold, the active alga concentrated solution that soluble solids content is by weight 24% is joined in urea melting liquid with the gamma-polyglutamic acid-fermentation liquid that gamma-polyglutamic acid-content is 45g/l, then through granulation tower pelletize, obtain described Sargassum polyglutamic acid urea product；Wherein, described active alga concentrated solution is 6:1 with the weight ratio of gamma-polyglutamic acid-fermentation liquid；The synergy liquid being made up of active alga concentrated solution and gamma-polyglutamic acid-fermentation liquid and the weight ratio of carbamide are 25:1000。
Adopting the method described in this specification to detect, the nitrogen content in Sargassum polyglutamic acid carbamide is 46.09%。
Embodiment 5: produce Sargassum polyglutamic acid carbamide of the present invention
The enforcement step of this embodiment is as follows:
Between one section of evaporator section and the dual circulation section of existing urea granulation tower, use the vaporizer that Shandong Xin Rui chemical equipment company limited sells with trade name Urea Evaporation device；Utilize the pipeline pump that Yangtze River, Zhejiang Beng Ye company limited sells with trade name ISW type horizontal pipeline centrifugal pump；By the effusion meter that Tong Chuan finite instrument company of Jinhu County sells with trade name TC-TY series oval gear flowmeter, the active alga concentrated solution that soluble solids content is by weight 23% is joined in urea melting liquid with the gamma-polyglutamic acid-fermentation liquid that gamma-polyglutamic acid-content is 43g/l, then through granulation tower pelletize, obtain described Sargassum polyglutamic acid urea product；Wherein, described active alga concentrated solution is 9:1 with the weight ratio of gamma-polyglutamic acid-fermentation liquid；The synergy liquid being made up of active alga concentrated solution and gamma-polyglutamic acid-fermentation liquid and the weight ratio of carbamide are 18:1000。
Adopting the method described in this specification to detect, the nitrogen content in Sargassum polyglutamic acid carbamide is 46.21%。
Embodiment 6: produce Sargassum polyglutamic acid carbamide of the present invention
The enforcement step of this embodiment is as follows:
Between one section of evaporator section and the dual circulation section of existing urea granulation tower, use the vaporizer that Yantai Ya Mei Metaux Speciaux S. A. sells with trade name Urea Evaporation device；Utilize the pipeline pump that Yangtze River, Zhejiang Beng Ye company limited sells with trade name ISW type horizontal pipeline centrifugal pump；By Jiangsu Heng great finite instrument company with trade name HD-LGHX annular oriffice effusion meter, the active alga concentrated solution that soluble solids content is by weight 21% is joined in urea melting liquid with the gamma-polyglutamic acid-fermentation liquid that gamma-polyglutamic acid-content is 40g/l, then through granulation tower pelletize, obtain described Sargassum polyglutamic acid urea product；Wherein, described active alga concentrated solution is 8:1 with the weight ratio of gamma-polyglutamic acid-fermentation liquid；The synergy liquid being made up of active alga concentrated solution and gamma-polyglutamic acid-fermentation liquid and the weight ratio of carbamide are 24:1000。
Adopting the method described in this specification to detect, the nitrogen content in Sargassum polyglutamic acid carbamide is 46.15%。
[test example 1] manure trial (intensive shadow on lung)
Test sets Conventional urea (CK), seaweed urea (A1), gamma-polyglutamic acid-carbamide (A2) and 4 process of Sargassum polyglutamic acid carbamide (A3) of the present invention, repeats 3 times。Sargassum polyglutamic acid carbamide is the product of the embodiment of the present invention 2 preparation, and seaweed urea is the single Algae synergistic carbamide prepared according to the condition of embodiment 2, and gamma-polyglutamic acid-carbamide is the single polyglutamic acid synergistic urea prepared according to the condition of embodiment 2。
Every basin dress soil 2kg, according to 0.7g/ basin soil amount add each process fertilizer, and with soil Homogeneous phase mixing。Every basin 3 young plant, regularly waters, and each irrigation amount keeps consistent。Fresh weight, dry weight, plant height and chlorophyll content is measured during intensive shadow on lung results。Result of the test is listed in table 1。
Table 1: intensive shadow on lung Forest table
As can be seen from Table 1, seaweed urea, polyglutamic acid carbamide is used all to have raising in various degree compared with Conventional urea in plant height, fresh weight and dry weight with the intensive shadow on lung of Sargassum polyglutamic acid Urea treatment of the present invention。Compared with single seaweed urea and single polyglutamic acid carbamide, the amplification of intensive shadow on lung plant height, fresh weight and dry weight is become apparent from by Sargassum polyglutamic acid carbamide, respectively 39.77%, 11.76% and 13.00%, these data are higher than the amplification sum of seaweed urea and polyglutamic acid carbamide。Illustrate that the effect of Sargassum polyglutamic acid carbamide is not only Sargassum and polyglutamic acid is simply added effect, but further potentiation on both bases。The present embodiment also demonstrates Sargassum polyglutamic acid can remarkably promote the growth of intensive shadow on lung。
[test example 2] manure trial (Fructus Lycopersici esculenti)
Test sets Conventional urea (CK), seaweed urea (A1), gamma-polyglutamic acid-carbamide (A2) and 4 process of Sargassum polyglutamic acid carbamide (A3) of the present invention, repeats 3 times。Sargassum polyglutamic acid carbamide is the product of the embodiment of the present invention 4 preparation, and seaweed urea is the single Algae synergistic carbamide prepared according to the condition of embodiment 4, and gamma-polyglutamic acid-carbamide is the single polyglutamic acid synergistic urea prepared according to the condition of embodiment 4。
Every basin dress soil 5kg, according to 0.6g/ basin soil amount add each process fertilizer, and with soil Homogeneous phase mixing。Every pot transplanting Fructus Lycopersici esculenti Seedling 2 strain, regularly waters, and each irrigation amount keeps consistent。For investigating low temperature impact that each process Fructus Lycopersici esculenti is grown, this test is all potted plant all to be carried out in the indoor that temperature is 0～5 DEG C。Fructus Lycopersici esculenti transplanting " Invest, Then Investigate " plant height in January and stem are thick。Result of the test is listed in table 2。
Table 2: Fructus Lycopersici esculenti survey of growth and development table
| Process | Plant height (mm) | Amplification (%) | Stem thick (mm) | Amplification (%) |
| Ck | 180 | — | 7.51 | — |
| A1 | 198 | 10.00 | 7.81 | 3.99 |
| A2 | 193 | 7.22 | 7.72 | 2.80 |
| A3 | 217 | 20.56 | 8.13 | 8.26 |
From table 2 it can be seen that seaweed urea, polyglutamic acid carbamide and Sargassum polyglutamic acid carbamide of the present invention all can increase the winter resistance of Fructus Lycopersici esculenti Seedling。The Fructus Lycopersici esculenti of Sargassum polyglutamic acid Urea treatment of the present invention can be respectively increased 20.56% and 8.26% compared to Conventional urea on plant height and stem are thick, amplification sum higher than single seaweed urea and single polyglutamic acid carbamide, illustrate that Sargassum polyglutamic acid carbamide achieves the comprehensive dual potentiation of Sargassum and polyglutamic acid, and the winter resistance of crop can be increased, and promote the growth of seedling。
[test example 3] manure trial (Semen Tritici aestivi)
Test sets Conventional urea (CK), seaweed urea (A1), gamma-polyglutamic acid-carbamide (A2) and 4 process of Sargassum polyglutamic acid carbamide (A3) of the present invention, repeats 3 times。Sargassum polyglutamic acid carbamide is the product of the embodiment of the present invention 5 preparation, and seaweed urea is the single Algae synergistic carbamide prepared according to the condition of embodiment 5, and gamma-polyglutamic acid-carbamide is the single polyglutamic acid synergistic urea prepared according to the condition of embodiment 5。
Every basin dress sand soil 2kg, each fertilizer that processes is according to the addition of 0.65g/ basin soil and soil Homogeneous phase mixing。Plantation Semen Tritici aestivi 3 strain of every basin, regularly waters, and each irrigation amount keeps consistent。Nutrient content in wheat growth " Invest, Then Investigate " in February plant height and soil。Result of the test is listed in table 3。
Table 3: wheat growth and soil nutrient application form
As can be seen from Table 3, seaweed urea, polyglutamic acid carbamide and Sargassum polyglutamic acid carbamide can promote that wheat plant grows to some extent, and increase the content of soil with organic matter, alkali-hydrolyzable nitrogen, rapid available phosphorus and available potassium。The effect of Semen Tritici aestivi and soil is better than single seaweed urea and single polyglutamic acid carbamide by Sargassum polyglutamic acid carbamide, but is not the addition effect of both fertilizer, but the further potentiation to both fertilizer。The present embodiment also illustrates that soil is had certain function of fertilizer retention by Sargassum polyglutamic acid carbamide。
Claims (10)
1. the production method of a Sargassum polyglutamic acid carbamide, it is characterised in that the step of this production method is as follows:
Between one section of evaporator section and the dual circulation section of existing urea granulation tower, pipeline pump is utilized to join in urea melting liquid by effusion meter by active alga concentrated solution and gamma-polyglutamic acid-fermentation liquid, then through granulation tower pelletize, obtain described Sargassum polyglutamic acid urea product；Wherein, described active alga concentrated solution is 4～9:1 with the weight ratio of gamma-polyglutamic acid-fermentation liquid；The synergy liquid being made up of active alga concentrated solution and gamma-polyglutamic acid-fermentation liquid and the weight ratio of carbamide are 10～30:1000。
2. production method according to claim 1, it is characterised in that the soluble solids content of described active alga concentrated solution is by weight 20%～25%。
3. production method according to claim 1, it is characterised in that the gamma-polyglutamic acid-content of described gamma-polyglutamic acid-fermentation liquid is 38～45g/l。
4. production method according to claim 1, it is characterised in that the synergy liquid being made up of active alga concentrated solution and gamma-polyglutamic acid-fermentation liquid and the weight ratio of carbamide are 14～26:1000。
5. production method according to claim 1, it is characterised in that the weight ratio of described active alga concentrated solution and gamma-polyglutamic acid-fermentation liquid is 5～8:1。
6. production method according to claim 1, it is characterised in that the synergy liquid being made up of active alga concentrated solution and gamma-polyglutamic acid-fermentation liquid and the weight ratio of carbamide are 18～22:1000。
7. production method according to claim 1, it is characterised in that the weight ratio of described active alga concentrated solution and gamma-polyglutamic acid-fermentation liquid is 6～7:1。
8. a Sargassum polyglutamic acid carbamide, it is characterised in that it contains the carbamide in Sargassum polyglutamic acid weight of urea 0.045～0.88% Sargassum concentrate, 0.001～0.05% gamma-polyglutamic acid-and surplus。
9. Sargassum polyglutamic acid carbamide according to claim 1, it is characterised in that it contains the carbamide in Sargassum polyglutamic acid weight of urea 0.090～0.50% Sargassum concentrate, 0.002～0.030% gamma-polyglutamic acid-and surplus。
10. Sargassum polyglutamic acid carbamide according to claim 1, it is characterised in that it contains the carbamide in Sargassum polyglutamic acid weight of urea 0.19～0.40% Sargassum concentrate, 0.003～0.020% gamma-polyglutamic acid-and surplus。
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