CN1163450C - Urea modifier - Google Patents
Urea modifier Download PDFInfo
- Publication number
- CN1163450C CN1163450C CNB001044605A CN00104460A CN1163450C CN 1163450 C CN1163450 C CN 1163450C CN B001044605 A CNB001044605 A CN B001044605A CN 00104460 A CN00104460 A CN 00104460A CN 1163450 C CN1163450 C CN 1163450C
- Authority
- CN
- China
- Prior art keywords
- urea
- activity inhibitor
- copper
- urea modifier
- sulfate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 title claims abstract description 86
- 239000004202 carbamide Substances 0.000 title claims abstract description 46
- 239000003607 modifier Substances 0.000 title claims abstract description 24
- 239000003112 inhibitor Substances 0.000 claims abstract description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 15
- 230000000694 effects Effects 0.000 claims abstract description 13
- 241000894006 Bacteria Species 0.000 claims abstract description 8
- 108010046334 Urease Proteins 0.000 claims abstract description 6
- GHMLBKRAJCXXBS-UHFFFAOYSA-N resorcinol Chemical compound OC1=CC=CC(O)=C1 GHMLBKRAJCXXBS-UHFFFAOYSA-N 0.000 claims description 22
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 12
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 10
- 239000003795 chemical substances by application Substances 0.000 claims description 10
- 229910052802 copper Inorganic materials 0.000 claims description 10
- 239000010949 copper Substances 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 7
- 230000003647 oxidation Effects 0.000 claims description 7
- 238000007254 oxidation reaction Methods 0.000 claims description 7
- GEHJYWRUCIMESM-UHFFFAOYSA-L sodium sulfite Chemical compound [Na+].[Na+].[O-]S([O-])=O GEHJYWRUCIMESM-UHFFFAOYSA-L 0.000 claims description 7
- XTVVROIMIGLXTD-UHFFFAOYSA-N copper(II) nitrate Chemical compound [Cu+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O XTVVROIMIGLXTD-UHFFFAOYSA-N 0.000 claims description 6
- MKWYFZFMAMBPQK-UHFFFAOYSA-J sodium feredetate Chemical compound [Na+].[Fe+3].[O-]C(=O)CN(CC([O-])=O)CCN(CC([O-])=O)CC([O-])=O MKWYFZFMAMBPQK-UHFFFAOYSA-J 0.000 claims description 6
- BNZCDZDLTIHJAC-UHFFFAOYSA-N 2-azaniumylethylazanium;sulfate Chemical compound NCC[NH3+].OS([O-])(=O)=O BNZCDZDLTIHJAC-UHFFFAOYSA-N 0.000 claims description 5
- 235000019353 potassium silicate Nutrition 0.000 claims description 5
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 5
- XOGGUFAVLNCTRS-UHFFFAOYSA-N tetrapotassium;iron(2+);hexacyanide Chemical compound [K+].[K+].[K+].[K+].[Fe+2].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-] XOGGUFAVLNCTRS-UHFFFAOYSA-N 0.000 claims description 5
- JPVYNHNXODAKFH-UHFFFAOYSA-N Cu2+ Chemical compound [Cu+2] JPVYNHNXODAKFH-UHFFFAOYSA-N 0.000 claims description 4
- QGZKDVFQNNGYKY-UHFFFAOYSA-O ammonium group Chemical group [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 claims description 4
- 229910001431 copper ion Inorganic materials 0.000 claims description 4
- 229910000365 copper sulfate Inorganic materials 0.000 claims description 4
- ORTQZVOHEJQUHG-UHFFFAOYSA-L copper(II) chloride Chemical compound Cl[Cu]Cl ORTQZVOHEJQUHG-UHFFFAOYSA-L 0.000 claims description 4
- ARUVKPQLZAKDPS-UHFFFAOYSA-L copper(II) sulfate Chemical compound [Cu+2].[O-][S+2]([O-])([O-])[O-] ARUVKPQLZAKDPS-UHFFFAOYSA-L 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- 239000003109 Disodium ethylene diamine tetraacetate Substances 0.000 claims description 3
- ZGTMUACCHSMWAC-UHFFFAOYSA-L EDTA disodium salt (anhydrous) Chemical compound [Na+].[Na+].OC(=O)CN(CC([O-])=O)CCN(CC(O)=O)CC([O-])=O ZGTMUACCHSMWAC-UHFFFAOYSA-L 0.000 claims description 3
- 108010010803 Gelatin Proteins 0.000 claims description 3
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 3
- DWAQJAXMDSEUJJ-UHFFFAOYSA-M Sodium bisulfite Chemical compound [Na+].OS([O-])=O DWAQJAXMDSEUJJ-UHFFFAOYSA-M 0.000 claims description 3
- 239000002253 acid Substances 0.000 claims description 3
- 235000019301 disodium ethylene diamine tetraacetate Nutrition 0.000 claims description 3
- 229920000159 gelatin Polymers 0.000 claims description 3
- 239000008273 gelatin Substances 0.000 claims description 3
- 235000019322 gelatine Nutrition 0.000 claims description 3
- 235000011852 gelatine desserts Nutrition 0.000 claims description 3
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 3
- 239000011707 mineral Substances 0.000 claims description 3
- 235000010755 mineral Nutrition 0.000 claims description 3
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 3
- 235000010267 sodium hydrogen sulphite Nutrition 0.000 claims description 3
- BYGOPQKDHGXNCD-UHFFFAOYSA-N tripotassium;iron(3+);hexacyanide Chemical compound [K+].[K+].[K+].[Fe+3].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-] BYGOPQKDHGXNCD-UHFFFAOYSA-N 0.000 claims description 3
- IXPNQXFRVYWDDI-UHFFFAOYSA-N 1-methyl-2,4-dioxo-1,3-diazinane-5-carboximidamide Chemical compound CN1CC(C(N)=N)C(=O)NC1=O IXPNQXFRVYWDDI-UHFFFAOYSA-N 0.000 claims description 2
- 239000002131 composite material Substances 0.000 claims description 2
- 229960003280 cupric chloride Drugs 0.000 claims description 2
- 235000019422 polyvinyl alcohol Nutrition 0.000 claims description 2
- 235000010413 sodium alginate Nutrition 0.000 claims description 2
- 239000000661 sodium alginate Substances 0.000 claims description 2
- 229940005550 sodium alginate Drugs 0.000 claims description 2
- PODWXQQNRWNDGD-UHFFFAOYSA-L sodium thiosulfate pentahydrate Chemical compound O.O.O.O.O.[Na+].[Na+].[O-]S([S-])(=O)=O PODWXQQNRWNDGD-UHFFFAOYSA-L 0.000 claims description 2
- 239000011573 trace mineral Substances 0.000 claims description 2
- 235000013619 trace mineral Nutrition 0.000 claims description 2
- 125000002256 xylenyl group Chemical class C1(C(C=CC=C1)C)(C)* 0.000 claims description 2
- PNNCWTXUWKENPE-UHFFFAOYSA-N [N].NC(N)=O Chemical compound [N].NC(N)=O PNNCWTXUWKENPE-UHFFFAOYSA-N 0.000 abstract description 8
- 238000003912 environmental pollution Methods 0.000 abstract description 3
- 230000002829 reductive effect Effects 0.000 abstract description 2
- QIGBRXMKCJKVMJ-UHFFFAOYSA-N Hydroquinone Chemical compound OC1=CC=C(O)C=C1 QIGBRXMKCJKVMJ-UHFFFAOYSA-N 0.000 abstract 2
- 239000003963 antioxidant agent Substances 0.000 abstract 2
- 230000003078 antioxidant effect Effects 0.000 abstract 2
- 230000003247 decreasing effect Effects 0.000 abstract 1
- 150000007522 mineralic acids Chemical class 0.000 abstract 1
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 235000013877 carbamide Nutrition 0.000 description 40
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 8
- 239000008280 blood Substances 0.000 description 7
- 210000004369 blood Anatomy 0.000 description 7
- 238000002360 preparation method Methods 0.000 description 5
- 239000002689 soil Substances 0.000 description 5
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 4
- 238000004176 ammonification Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000014075 nitrogen utilization Effects 0.000 description 4
- 208000006558 Dental Calculus Diseases 0.000 description 3
- 229910021538 borax Inorganic materials 0.000 description 3
- 239000008187 granular material Substances 0.000 description 3
- RUTXIHLAWFEWGM-UHFFFAOYSA-H iron(3+) sulfate Chemical compound [Fe+3].[Fe+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O RUTXIHLAWFEWGM-UHFFFAOYSA-H 0.000 description 3
- 229910000360 iron(III) sulfate Inorganic materials 0.000 description 3
- SQQMAOCOWKFBNP-UHFFFAOYSA-L manganese(II) sulfate Chemical compound [Mn+2].[O-]S([O-])(=O)=O SQQMAOCOWKFBNP-UHFFFAOYSA-L 0.000 description 3
- 239000004328 sodium tetraborate Substances 0.000 description 3
- 235000010339 sodium tetraborate Nutrition 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- NWONKYPBYAMBJT-UHFFFAOYSA-L zinc sulfate Chemical compound [Zn+2].[O-]S([O-])(=O)=O NWONKYPBYAMBJT-UHFFFAOYSA-L 0.000 description 3
- 229910000368 zinc sulfate Inorganic materials 0.000 description 3
- 229960001763 zinc sulfate Drugs 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 244000037666 field crops Species 0.000 description 2
- 150000004698 iron complex Chemical class 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- IOVCWXUNBOPUCH-UHFFFAOYSA-M Nitrite anion Chemical compound [O-]N=O IOVCWXUNBOPUCH-UHFFFAOYSA-M 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 239000003984 copper intrauterine device Substances 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 231100000572 poisoning Toxicity 0.000 description 1
- 230000000607 poisoning effect Effects 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000003755 preservative agent Substances 0.000 description 1
- 230000002335 preservative effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
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- Agricultural Chemicals And Associated Chemicals (AREA)
- Fertilizers (AREA)
Abstract
The present invention relates to a urea modifier which is mainly composed of 1.0 to 2.5 wt% denitrification bacterium flow activity inhibitor, 1.5 to 3.0 wt% of urease activity inhibitor, 1.0 to 2.5 wt% of antioxidant, 0.5 to 2 wt% of inorganic acid and the rest water. Because the denitrification bacterium flow activity inhibitor and the antioxidant are introduced into a prescription, the use ratio of urea nitrogen is greatly improved, storage life is prolonged, the addition quantity of hydroquinone is obviously decreased, and an environmental pollution degree is reduced.
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 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 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 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, sodium alginate, 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 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
Prescription
| 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 (4)
1. urea modifier, it is characterized in that in the composition being 100wt%, mainly by 1.0～2.5wt% denitrifying bacteria 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 the denitrifying bacteria activity inhibitor 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; Urease activity inhibitor comprises the material of Resorcinol, Sytron and copper ions, and wherein two or more can compositely use arbitrarily, and the material of described copper ions comprises copper sulfate, cupric chloride, cupric nitrate; Oxidation inhibitor comprises S-WAT, xylenol, disodium ethylene diamine tetraacetate, Sulfothiorine, sodium bisulfite.
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 3 is characterized in that described membrane-forming agent comprises gelatin, water glass, sodium alginate, 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 CN1298854A (en) | 2001-06-13 |
| CN1163450C true CN1163450C (en) | 2004-08-25 |
Family
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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 (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9790134B2 (en) | 2015-06-02 | 2017-10-17 | Koch Agronomic Services, Llc | Agricultural microbial inoculant compositions and uses thereof |
| EP4450547A1 (en) | 2023-04-21 | 2024-10-23 | Commissariat à l'énergie atomique et aux énergies alternatives | Water-soluble tackifier |
Families Citing this family (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 |
| 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 |
| AU2024313271A1 (en) * | 2023-06-22 | 2026-01-22 | Verdesian Life Sciences U.S., Llc | Nitrogen stabilizer compositions and related methods |
-
2000
- 2000-07-07 CN CNB001044605A patent/CN1163450C/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9790134B2 (en) | 2015-06-02 | 2017-10-17 | Koch Agronomic Services, Llc | Agricultural microbial inoculant compositions and uses thereof |
| US10513467B2 (en) | 2015-06-02 | 2019-12-24 | Koch Agronomic Services, Llc | Agricultural microbial inoculant compositions and uses thereof |
| US11542211B2 (en) | 2015-06-02 | 2023-01-03 | Koch Agronomie Services, LLC | Agricultural microbial inoculant compositions and uses thereof |
| EP4450547A1 (en) | 2023-04-21 | 2024-10-23 | Commissariat à l'énergie atomique et aux énergies alternatives | Water-soluble tackifier |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1298854A (en) | 2001-06-13 |
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