CN103360183A - Synergistic urea containing multiple trace elements and preparation method of synergistic urea - Google Patents
Synergistic urea containing multiple trace elements and preparation method of synergistic urea Download PDFInfo
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- CN103360183A CN103360183A CN201310298427XA CN201310298427A CN103360183A CN 103360183 A CN103360183 A CN 103360183A CN 201310298427X A CN201310298427X A CN 201310298427XA CN 201310298427 A CN201310298427 A CN 201310298427A CN 103360183 A CN103360183 A CN 103360183A
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Abstract
The invention relates to synergistic urea containing multiple trace elements. The synergistic urea comprises the following materials in percentage by weight: 0.01%-2.0% of plant nutrient solution, 0.02%-0.5% of polyaspartate, 0.005%-0.5% of metal protease and 97.0%-99.96% of urea. The synergistic urea disclosed by the invention not only contains nitrogen, but also contains the elements including phosphor, potassium, calcium, magnesium, sulfur, iron, manganese, copper, zinc, boron, molybdenum and the like, which are necessary to the crops. In a process of applying the urea, the urea can be used for supplementing other elements for the crop. Meanwhile, polyaspartate and metal protease are additionally added for relieving the quick decomposition of the nitrogen, prolonging the fertilizer effect, improving the nitrogen utilization rate and effectively improving the crop quality.
Description
Technical field
The present invention relates to a kind of synergistic urea that contains various trace elements and preparation method thereof, belong to technical field of fertilizers.
Background technology
Nitrogenous fertilizer is that China farm crop are used a maximum class fertilizer always, and its utilization ratio on average only has 30%-35%, and urea is usage quantity maximum and the highest nitrogenous fertilizer of nitrogen content.Along with using in a large number of nitrogenous fertilizer, not only be difficult to reach the purpose of high crop yield high-quality, and environment has been caused detrimentally affect.Be broken down into ammonium nitrogen and nitric nitrogen through series reaction after urea is manured into soil, very easily cause volatilization and groundwater pollution.Lower utilization rate of fertilizer has not only caused the waste of resource, the more important thing is the deterioration that has caused environment.
At present, the additive about functional urea mainly contains: (1) adds urease inhibitor and nitrification inhibitor, as formaldehyde, Dyhard RU 100 etc. is joined in the urine, suppresses urea generation ammonification or nitrification.(2) coating insoluble film is as discharging by alleviate nitrogen at urea granules surface coating polymerization thing or sulphur.(3) add plant nutrient promotor, as by in urine, adding polyaspartic acid salts or alga oligosaccharide, promote Crop, also suppress the fast decoupled of nitrogen simultaneously.(4) add a certain element, as contain zinc urea, add potassium urea etc.From the above, how the research direction of Modified Urea alleviates urea decomposition if mostly concentrating on, and improves nitrogen utilization efficiency.But in actual applications and reckon without urea and only contain single high nutrient, be difficult under relatively low Nutrient Environment, reach the raising nitrogen use efficiency by Nutrient interaction effect and enrichment effect.
" law of minimum nourishment " theory according to German agriculture chemist Li Bixi---what determine crop yield is certain relative content minimum but not minimum nutrient of absolute content concerning crop needs in the soil, continue to increase other nutrients beyond the minimum nutrient, not only be difficult to improve output but also the economic benefit that can reduce fertilising.In recent years, along with NPK fertilizers applies in a large number, trace element descends day by day in the calcium in the soil, magnesium, sulphur, iron, manganese, copper, the zinc etc., has become the primary factor of restriction crop yield and quality.Urea is that nitrogen content is the highest, and only contains the fertilizer of single nitrogen, how to make it have the research emphasis that becomes that the multifunctional novel urea that delays fertilizer effectiveness improves the urea utilization ratio by adding multiple middle trace element and synergistic agent.
Summary of the invention
Technical problem to be solved by this invention provides a kind of synergistic urea that contains various trace elements and preparation method thereof, the present invention prepares synergistic urea and not only contains nitrogen, and contain the elements such as the necessary phosphorus of crop, potassium, calcium, magnesium, sulphur, iron, violent, copper, zinc, boron, molybdenum, in using the process of urea, can replenish other elements for crop, simultaneously, also alleviate the nitrogen fast decoupled by adding polyaspartic acid salts and metalloprotease, prolong fertilizer efficiency, improve nitrogen utilization efficiency, effectively improve crop quality.
The technical scheme that the present invention solves the problems of the technologies described above is as follows: a kind of synergistic urea that contains various trace elements, by the percentage composition of raw material gross weight, formed by following each raw material: the metalloprotease of the plant nutrition liquid of 0.01%-2.0%, the polyaspartic acid salts of 0.02%-0.5%, 0.005%-0.5%, the urea of 97.0%-99.96%.
On the basis of technique scheme, the present invention can also do following improvement.
Further, described plant nutrition liquid is that 65-100 weight part sal epsom, 55-85 weight part zinc sulfate, 15-40 weight part borax, 15-40 weight part manganous sulfate, 15-40 weight part ferrous citrate, 10-20 weight part copper sulfate, 20-60 weight part calcium ammonium nitrate, 60-120 weight part sodium humate and 400-1850 weight parts water mix.
Further, described polyaspartic acid salts is to be polymerized separately or further hydrolysis salifying by amino acid monomer Pidolidone, 1B, L-Aspartic acid, ALANINE and glycine, and its hydrolysate is that sodium salt, sylvite, ammonium salt, zinc salt, magnesium salts, calcium salt or its mixing salt of polymeric amino acid forms.
Further, described metalloprotease is one or more the mixture in trypsinase, Quimotrase, molybdoiron protein enzyme, carboxypeptidase, the carbonic anhydrase.
Further, nitrogenous 〉=46.0, phosphorus 0.5-2.5g/kg, potassium 3-8g/kg, calcium 0.1-1.0g/kg, magnesium 0.1-1.0g/kg, sulphur 1.0-3.0g/kg, iron 0.1-0.5g/kg, violent 0.01-1.0g/kg, copper 0.01-0.05g/kg, zinc 0.1-2.0g/kg, boron 0.1-0.5g/kg, molybdenum 0.1-0.5g/kg in the described synergistic urea.
The present invention also provides a kind of preparation method who contains the synergistic urea of various trace elements, comprising:
Percentage composition by the raw material gross weight, take by weighing the plant nutrition liquid of 0.01%-2.0%, in plant nutrition liquid, add the polyaspartic acid salts of 0.02%-0.5% and the metalloprotease of 0.01%-0.5%, mix and make mixture, mixture is joined in the urea of 97.0%-99.96% molten state by spray gun, then granulation, and get final product.
The invention has the beneficial effects as follows:
The present invention prepares synergistic urea and not only contains nitrogen, and contain the elements such as the necessary phosphorus of crop, potassium, calcium, magnesium, sulphur, iron, violent, copper, zinc, boron, molybdenum, in using the process of urea, can replenish other elements for crop, simultaneously, also alleviate the nitrogen fast decoupled by adding polyaspartic acid salts and metalloprotease, prolong fertilizer efficiency, improve nitrogen utilization efficiency, effectively improve crop quality.
Embodiment
Below principle of the present invention and feature are described, institute only gives an actual example and to be used for explanation the present invention, is not be used to limiting scope of the present invention.
Embodiment 1
A kind of synergistic urea that contains various trace elements, percentage composition by the raw material gross weight, take by weighing 0.3% plant nutrition liquid, add 0.5% polyaspartic acid salts (poly aspartic acid zinc) and 0.01% metalloprotease (the in mass ratio 1:3 mixing of Quimotrase and molybdoiron protein enzyme) in the plant nutrition liquid, mix and make mixture, mixture is joined in the urea of 99.48% molten state then granulation in urea prilling tower by spray gun.
Wherein, described plant nutrition liquid is that 70 weight part sal epsom, 65 weight part zinc sulfate, 20 weight part boraxs, 15 weight part manganous sulfates, 40 weight part ferrous citrates, 10 weight part copper sulfate, 55 weight part calcium ammonium nitrates mix, and adds 70 weight part sodium humates and 1200 weight parts waters again and makes solution.
Embodiment 2
A kind of synergistic urea that contains various trace elements, percentage composition by the raw material gross weight, take by weighing 0.1% plant nutrition liquid, add 0.02% polyaspartic acid salts (calcium polyaspartate) and 0.5% metalloprotease (the in mass ratio 2:5 mixing of carboxypeptidase and carbonic anhydrase) in the plant nutrition liquid, mix and make mixture, mixture is joined in the urea of 99.38% molten state then granulation in urea prilling tower by spray gun.
Wherein, described plant nutrition liquid is that 75 weight part sal epsom, 60 weight part zinc sulfate, 15 weight part boraxs, 20 weight part manganous sulfates, 35 weight part ferrous citrates, 15 weight part copper sulfate, 45 weight part calcium ammonium nitrates mix, and adds 100 weight part sodium humates and 1500 weight parts waters again and makes solution.
Embodiment 3
A kind of synergistic urea that contains various trace elements, percentage composition by the raw material gross weight, take by weighing 1.0% plant nutrition liquid, add 0.2% polyaspartic acid salts (calcium polyaspartate) and 0.1% metalloprotease (the in mass ratio 2:5 mixing of carboxypeptidase and carbonic anhydrase) in the plant nutrition liquid, mix and make mixture, mixture is joined in the urea of 98.7% molten state then granulation in urea prilling tower by spray gun.
Wherein, described plant nutrition liquid is that 70 weight part sal epsom, 65 weight part zinc sulfate, 20 weight part boraxs, 15 weight part manganous sulfates, 40 weight part ferrous citrates, 10 weight part copper sulfate, 55 weight part calcium ammonium nitrates mix, and adds 70 weight part sodium humates and 1200 weight parts waters again and makes solution.
The controlled trial of experimental example 1 synergistic urea wheatland fertilising
10 mu of winter wheat area, the winter wheat base fertilizer phase in 2012 was divided into two residential quarters, each 5 mu, carried out controlled trial:
Base fertilizer common urea residential quarter: use common urea (contrast) 20kg/ mu
Base fertilizer synergistic urea residential quarter: the synergistic urea 20kg/ mu of using the embodiment of the invention 1
Other base fertilizer: two ammonium 20kg/ mus, Repone K 10kg/ mu, two residential quarters are consistent.Later stage does not topdress.
The result shows: the wheat of using synergistic urea is compared with the wheat of using common urea, and the leaf look dark green, and blade is roomy, well developed root system, stem stalk are thick.Indices such as table 1:
Table 1 indices
As can be seen from Table 1, the base fertilizer synergistic urea ratio of using the embodiment of the invention 1 preparation is used common urea mu volume increase 11.46%.
The controlled trial of experimental example 2 synergistic urea wheatlands fertilising
20 mu of winter wheat area, the control measures such as sowing base fertilizer are consistent.The wheat period of seedling establishment was divided into 2 residential quarters in 2013, and each 5 mu, the controlled trial of topdressing:
Chase after the common urea residential quarter: use common urea (contrast) 30kg/ mu
Chase after the synergistic urea residential quarter: the synergistic urea 15kg/ mu of using the present invention (embodiment 1)
The result shows: the wheat of using synergistic urea that reduces by half is compared with the wheat of the common urea of using conventional amount used, and leaf look dark green degree is similar, and the later stage is not taken off fertilizer, and grain plumpness is suitable, and the result is as shown in table 2.
Table 2 indices
As can be seen from the table, the wheat of using synergistic urea of reducing by half all shows quite at aspects such as plant height, mu spike number, grain number per spike, thousand seed weight, per mu yields than the wheat of the common urea of using conventional amount used even is better, mu volume increase 2.09%.
The above only is preferred embodiment of the present invention, and is in order to limit the present invention, within the spirit and principles in the present invention not all, any modification of doing, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (5)
1. synergistic urea that contains various trace elements, it is characterized in that, by the percentage composition of raw material gross weight, formed by following each raw material: the metalloprotease of the plant nutrition liquid of 0.01%-2.0%, the polyaspartic acid salts of 0.02%-0.5%, 0.005%-0.5%, the urea of 97.0%-99.96%.
2. synergistic urea according to claim 1, it is characterized in that described plant nutrition liquid is that 65-100 weight part sal epsom, 55-85 weight part zinc sulfate, 15-40 weight part borax, 15-40 weight part manganous sulfate, 15-40 weight part ferrous citrate, 10-20 weight part copper sulfate, 20-60 weight part calcium ammonium nitrate, 60-120 weight part sodium humate and 400-1850 weight parts water mix.
3. synergistic urea according to claim 1, it is characterized in that, described polyaspartic acid salts is to be polymerized separately or further hydrolysis salifying by amino acid monomer Pidolidone, 1B, L-Aspartic acid, ALANINE and glycine, and its hydrolysate is that sodium salt, sylvite, ammonium salt, zinc salt, magnesium salts, calcium salt or its mixing salt of polymeric amino acid forms.
4. synergistic urea according to claim 1 is characterized in that, described metalloprotease is one or more the mixture in trypsinase, Quimotrase, molybdoiron protein enzyme, carboxypeptidase, the carbonic anhydrase.
5. a preparation method who contains the synergistic urea of various trace elements is characterized in that, comprising:
Percentage composition by the raw material gross weight, take by weighing the plant nutrition liquid of 0.01%-2.0%, in plant nutrition liquid, add the polyaspartic acid salts of 0.02%-0.5% and the metalloprotease of 0.005%-0.5%, mix and make mixture, mixture is joined in the urea of 97.0%-99.96% molten state by spray gun, then granulation, and get final product.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104262064A (en) * | 2014-09-28 | 2015-01-07 | 中化化肥有限公司烟台作物营养与植物保护研究中心 | Microelement-rich liquid urea ammonium nitrate solution fertilizer and preparation method thereof |
| CN104478528A (en) * | 2014-12-31 | 2015-04-01 | 大连绿展肥业有限公司 | Nutritive element synergism fertilizer |
| 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 |
| CN113185356A (en) * | 2021-05-18 | 2021-07-30 | 镇江迪艾生物科技有限公司 | Formula of special synergist for soil improvement and preparation method thereof |
| CN114538996A (en) * | 2022-02-21 | 2022-05-27 | 山东省烟台市农业科学研究院 | Synergistic urea containing aspartic acid and alginate oligosaccharides and preparation method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102531764A (en) * | 2010-12-17 | 2012-07-04 | 山东远东国际生物化工股份有限公司 | Polypeptide compound fertilizer and preparation method thereof |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102531764A (en) * | 2010-12-17 | 2012-07-04 | 山东远东国际生物化工股份有限公司 | Polypeptide compound fertilizer and preparation method thereof |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104262064A (en) * | 2014-09-28 | 2015-01-07 | 中化化肥有限公司烟台作物营养与植物保护研究中心 | Microelement-rich liquid urea ammonium nitrate solution fertilizer and preparation method thereof |
| CN104478528A (en) * | 2014-12-31 | 2015-04-01 | 大连绿展肥业有限公司 | Nutritive element synergism fertilizer |
| 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 |
| CN113185356A (en) * | 2021-05-18 | 2021-07-30 | 镇江迪艾生物科技有限公司 | Formula of special synergist for soil improvement and preparation method thereof |
| CN114538996A (en) * | 2022-02-21 | 2022-05-27 | 山东省烟台市农业科学研究院 | Synergistic urea containing aspartic acid and alginate oligosaccharides and preparation method thereof |
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