CN1298854A - Urea modifier - Google Patents
Urea modifier Download PDFInfo
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- CN1298854A CN1298854A CN00104460A CN00104460A CN1298854A CN 1298854 A CN1298854 A CN 1298854A CN 00104460 A CN00104460 A CN 00104460A CN 00104460 A CN00104460 A CN 00104460A CN 1298854 A CN1298854 A CN 1298854A
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- urea
- copper
- urea modifier
- activity inhibitor
- modifier according
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Abstract
The invented urea modifier is composed of 1.0-2.5 wt.% of denitrifying bacteria activity inhibitor, 1.5-3.0 wt.% of urease activity inhibitor, 1.0-2.5 wt.% of antioxidant, 0.5-2 wt.% of inorganic acid, and the rest is water. It can greatly increase the utilization ratio of urea nitrogen and elongates the storage period, reduces the addition of hydroquinone, and decreases pollution to environment.
Description
The present invention relates to a kind of urea modifier, be specifically related to the urea modifier of a kind of cupric, iron complex.
Urea fertilizer has the nitrogen content height, soluble in water and be easy to advantage such as plant absorbing, the back is because ammonification excessive velocities and exist denitrification process to cause blood urea nitrogen to lose in a large number but urea is manured into soil, in China's blood urea nitrogen utilization ratio only is about 30%, can cause after urea is manured into soil on the other hand that P in soil H value increases the accumulation with amine, produces the murder by poisoning of nitrite and ammonia.In order to address this problem, people develop various urea modifiers.It is urea modifier that forestry soil institute of the Chinese Academy of Sciences proposes in CN85109580 with the Resorcinol.But this properties-correcting agent urease inhibiting effective ammonification speed, addition is 0.05～0.30% of a weight of urea.This is the urea modifier of main preparation with the Resorcinol, though effectively suppressed urea ammoniated speed, denitrification process is not had restraining effect, thereby the problem of a large amount of losses of blood urea nitrogen does not thoroughly solve.Very easily oxidation of Resorcinol in addition causes the urea modifier preservation period short, and only 3～6 months, and also addition is bigger, to serious environment pollution.
The object of the present invention is to provide a kind of urea modifier, not only suppress the ammonification speed of urea in soil, and improve the utilization ratio of blood urea nitrogen greatly, the while long preservative period, environmental pollution is little.
Urea modifier of the present invention is introduced denitrifying bacteria stream activity inhibitor, oxidation inhibitor in prescription, thereby has reached purpose of the present invention effectively.Urea modifier of the present invention is 100wt% in the composition, mainly by 1.0～2.5wt% denitrifying bacteria stream activity inhibitor, 1.5～3.0wt% urease activity inhibitor, 1.0～2.5wt% oxidation inhibitor, 0.5～2wt% mineral acid, all the other form for water, in addition, also can add the material that 4～7wt% contains the required trace element of plant such as potassium, magnesium, boron, iron, zinc, copper etc.Suitable denitrifying bacteria stream activity inhibitor of the present invention is copper, iron complex, comprises that sulfuric acid four ammoniums close copper, ethylenediamine sulfate closes copper, the Tripotassium iron hexacyanide, yellow prussiate of potash, can independent or composite use; Suitable urease activity inhibitor of the present invention comprises the material of Resorcinol, Sytron and copper ions, and wherein two or more can compositely use arbitrarily, and wherein the material of copper ions comprises copper sulfate, cupric chloride, cupric nitrate etc.; Suitable oxidation inhibitor of the present invention comprises S-WAT, xylenol, disodium ethylene diamine tetraacetate, Sulfothiorine, sodium bisulfite; Institute of the present invention mineral acid is mainly used in preparation urea modifier process of the present invention and regulates pH value, can select sulfuric acid, nitric acid, hydrochloric acid, phosphoric acid etc. for use.
Urea modifier of the present invention can adopt the universal method preparation.
Urea modifier of the present invention in use, properties-correcting agent can be made an addition in the urea soln, preparation addition type slow-release carbamide, or properties-correcting agent is sprayed at the urea granules surface, be prepared into slow release urea, but when being prepared into slow release urea, also need add the membrane-forming agent of 0.5～1.5wt% in the properties-correcting agent, as gelatin, water glass, extra large bath acid sodium, polyvinyl alcohol etc.In addition, urea modifier of the present invention also can be made slow-release carbamide in the urea granules surface in the field manual application.Urea modifier consumption of the present invention accounts for 0.7～1% of weight of urea.
Urea modifier of the present invention is owing to introduce denitrifying bacteria stream activity inhibitor and oxidation inhibitor in prescription, and suitably cooperate with other component, thereby not only can suppress the ammonification speed of urea, improve simultaneously the blood urea nitrogen utilization ratio greatly, reach 45～59%, and effectively reduce the consumption of Resorcinol in prescription, the Resorcinol addition only accounts for 0.01～0.04% of weight of urea and has reduced environmental pollution, also obviously prolong the storage period of properties-correcting agent, reaches more than 2 years.
Embodiment 1 prescription
| Component | Consumption (g) |
| Vitriolate of tartar | 20 |
| Sal epsom | 10 |
| Borax | 5 |
| Ferric sulfate | 15 |
| Manganous sulfate | 10 |
| Zinc sulfate | 10 |
| Ethylenediamine sulfate closes copper | 7 |
| Yellow prussiate of potash | 8 |
| Resorcinol | 12 |
| Sytron | 7 |
| S-WAT | 10 |
| Phosphoric acid concentration 85% | 15 |
| Water | 871 |
At first that vitriolate of tartar, sal epsom, borax, ferric sulfate, manganous sulfate, zinc sulfate is soluble in water, be mixed with homogeneous liquid, add 5g phosphoric acid regulating ph value to 2.9, add ethylenediamine sulfate after the stirring successively and close mixture, Resorcinol and Sytron, the S-WAT of copper and yellow prussiate of potash, each material adds the gap and all need stir, add 10g phosphoric acid at last ph value of mixture is transferred to 2.0, promptly get urea modifier of the present invention after the stirring.
This properties-correcting agent is made an addition in the urea soln, and addition is 0.7% of a weight of urea, and the addition type slow-release carbamide of preparation can be preserved 2 years, estimates proof through the land for growing field crops, academy of agricultural sciences, and the blood urea nitrogen utilization ratio reaches 47%.
Embodiment 2 prescriptions
| Component | Consumption (g) |
| Vitriolate of tartar | 20 |
| Sal epsom | 10 |
| Borax | 5 |
| Ferric sulfate | 15 |
| Manganous sulfate | 10 |
| Zinc sulfate | 10 |
| Sulfuric acid four ammoniums close copper | 9 |
| The Tripotassium iron hexacyanide | 6 |
| Resorcinol | 8 |
| Sytron | 12 |
| S-WAT | 10 |
| Sulfuric acid concentration 98% | 12 |
| Water glass | 5 |
| Water | 858 |
Make urea modifier of the present invention with embodiment 1 technology.This properties-correcting agent is sprayed at the urea granules surface, and quantity for spray accounts for 1% of weight of urea, makes the film-forming type slow-release carbamide, and preservation period reaches 2.5 years, estimates proof blood urea nitrogen utilization ratio through the land for growing field crops, academy of agricultural sciences and reaches 49%.
Embodiment 3
Change 5g water glass among the embodiment 2 into the 6g gelatin, the 10g S-WAT changes the 8g disodium ethylene diamine tetraacetate into, and 858g water changes 859g water into, and all the other are with embodiment 2.
Embodiment 4
Change 7g Sytron among the embodiment 1 into 10g copper sulfate, the 10g S-WAT changes sodium bisulfite into, and 871g water changes 868g water into, and all the other are with embodiment 1.
Embodiment 5
Change 5g water glass among the embodiment 2 into the 10g polyvinyl alcohol, the 8g Resorcinol changes 10g copper sulfate into, and 858g water changes 853g water into, and all the other are with embodiment 2.
Embodiment 6
Ethylenediamine sulfate among the embodiment 1 is closed copper 7g and yellow prussiate of potash 8g change 10g sulfuric acid four ammoniums into and close copper, 871g water changes 876g water into, and all the other are with embodiment 1.
Claims (6)
1. urea modifier, it is characterized in that in the composition being 100wt%, mainly by 1.0～2.5wt% denitrifying bacteria stream activity inhibitor, 1.5～3.0wt% urease activity inhibitor, 1.0～2.5wt% oxidation inhibitor, 0.5～2wt% mineral acid, all the other form for water, wherein denitrifying bacteria stream activity inhibitor comprises copper, iron complex, urease activity inhibitor comprises the material of Resorcinol, Sytron and copper ions, and wherein two or more can compositely use arbitrarily.
2. urea modifier according to claim 1 is characterized in that also can adding the material that 4～7wt% contains the required trace element of plant.
3. urea modifier according to claim 1 is characterized in that also can adding the membrane-forming agent of 0.5～1.5wt%.
4. urea modifier according to claim 1 is characterized in that described copper, iron complex comprise that sulfuric acid four ammoniums close copper, ethylenediamine sulfate closes copper, the Tripotassium iron hexacyanide, yellow prussiate of potash, can independent or composite use.
5. urea modifier according to claim 1 is characterized in that described oxidation inhibitor comprises S-WAT, xylenol, disodium ethylene diamine tetraacetate, Sulfothiorine, sodium bisulfite.
6. urea modifier according to claim 3 is characterized in that described membrane-forming agent comprises gelatin, water glass, extra large bath acid sodium, polyvinyl alcohol.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB001044605A CN1163450C (en) | 2000-07-07 | 2000-07-07 | Urea modifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB001044605A CN1163450C (en) | 2000-07-07 | 2000-07-07 | Urea modifier |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1298854A true CN1298854A (en) | 2001-06-13 |
| CN1163450C CN1163450C (en) | 2004-08-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB001044605A Expired - Fee Related CN1163450C (en) | 2000-07-07 | 2000-07-07 | Urea modifier |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1163450C (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102363584A (en) * | 2011-06-27 | 2012-02-29 | 山东润银生物化工股份有限公司 | Urea containing lactobacillus and preparation method thereof |
| US9790134B2 (en) | 2015-06-02 | 2017-10-17 | Koch Agronomic Services, Llc | Agricultural microbial inoculant compositions and uses thereof |
| CN112624881A (en) * | 2020-12-29 | 2021-04-09 | 浙江大学 | Chemical-biological combined control fertilizer for reducing cadmium accumulation of vegetables and improving yield of vegetables as well as preparation and application of chemical-biological combined control fertilizer |
-
2000
- 2000-07-07 CN CNB001044605A patent/CN1163450C/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102363584A (en) * | 2011-06-27 | 2012-02-29 | 山东润银生物化工股份有限公司 | Urea containing lactobacillus and preparation method thereof |
| US9790134B2 (en) | 2015-06-02 | 2017-10-17 | Koch Agronomic Services, Llc | Agricultural microbial inoculant compositions and uses thereof |
| CN107709275A (en) * | 2015-06-02 | 2018-02-16 | 科氏农艺服务有限责任公司 | Microbial bacterial agent composition and its purposes in agricultural |
| CN107709275B (en) * | 2015-06-02 | 2019-01-11 | 科氏农艺服务有限责任公司 | Microbial bacterial agent composition and its purposes in agricultural |
| US10513467B2 (en) | 2015-06-02 | 2019-12-24 | Koch Agronomic Services, Llc | Agricultural microbial inoculant compositions and uses thereof |
| CN112624881A (en) * | 2020-12-29 | 2021-04-09 | 浙江大学 | Chemical-biological combined control fertilizer for reducing cadmium accumulation of vegetables and improving yield of vegetables as well as preparation and application of chemical-biological combined control fertilizer |
| CN112624881B (en) * | 2020-12-29 | 2022-04-01 | 浙江大学 | Chemical-biological combined control fertilizer for reducing cadmium accumulation of vegetables and improving yield of vegetables as well as preparation and application of chemical-biological combined control fertilizer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1163450C (en) | 2004-08-25 |
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Addressee: Lanzhou Petrochemical Branch of PetroChina Company Limited Document name: Notification to Pay the Fees |
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| CF01 | Termination of patent right due to non-payment of annual fee |