CN104402597A - Stable phosphor-oxygen amide fertilizer and preparation method thereof - Google Patents
Stable phosphor-oxygen amide fertilizer and preparation method thereof Download PDFInfo
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- CN104402597A CN104402597A CN201410621899.9A CN201410621899A CN104402597A CN 104402597 A CN104402597 A CN 104402597A CN 201410621899 A CN201410621899 A CN 201410621899A CN 104402597 A CN104402597 A CN 104402597A
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- Prior art keywords
- fertilizer
- phosphorus
- oxanamide
- humic acid
- preparation
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- 239000003337 fertilizer Substances 0.000 title claims abstract description 75
- 238000002360 preparation method Methods 0.000 title claims abstract description 18
- -1 phosphor-oxygen amide Chemical class 0.000 title abstract description 9
- QJZYHAIUNVAGQP-UHFFFAOYSA-N 3-nitrobicyclo[2.2.1]hept-5-ene-2,3-dicarboxylic acid Chemical compound C1C2C=CC1C(C(=O)O)C2(C(O)=O)[N+]([O-])=O QJZYHAIUNVAGQP-UHFFFAOYSA-N 0.000 claims abstract description 29
- 239000004021 humic acid Substances 0.000 claims abstract description 29
- IKDSSHUDFQNEPR-UHFFFAOYSA-N O1C(CCCC1)C(=O)N.[P] Chemical compound O1C(CCCC1)C(=O)N.[P] IKDSSHUDFQNEPR-UHFFFAOYSA-N 0.000 claims description 51
- VHYFNPMBLIVWCW-UHFFFAOYSA-N 4-Dimethylaminopyridine Chemical group CN(C)C1=CC=NC=C1 VHYFNPMBLIVWCW-UHFFFAOYSA-N 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 6
- YUWBVKYVJWNVLE-UHFFFAOYSA-N [N].[P] Chemical compound [N].[P] YUWBVKYVJWNVLE-UHFFFAOYSA-N 0.000 claims description 4
- 229960000549 4-dimethylaminophenol Drugs 0.000 claims description 3
- 239000002253 acid Substances 0.000 claims description 2
- 239000003864 humus Substances 0.000 claims description 2
- 239000002689 soil Substances 0.000 abstract description 20
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract description 16
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 abstract description 11
- 229910052757 nitrogen Inorganic materials 0.000 abstract description 8
- 239000008202 granule composition Substances 0.000 abstract 1
- 229910052698 phosphorus Inorganic materials 0.000 description 10
- 239000011574 phosphorus Substances 0.000 description 10
- 229910019142 PO4 Inorganic materials 0.000 description 7
- 239000010452 phosphate Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- 238000010298 pulverizing process Methods 0.000 description 5
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 4
- 238000003786 synthesis reaction Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 229910021645 metal ion Inorganic materials 0.000 description 3
- 230000008635 plant growth Effects 0.000 description 3
- 239000000470 constituent Substances 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 244000005700 microbiome Species 0.000 description 2
- 239000000618 nitrogen fertilizer Substances 0.000 description 2
- 230000000050 nutritive effect Effects 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 2
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000012747 synergistic agent Substances 0.000 description 2
- 235000013619 trace mineral Nutrition 0.000 description 2
- 239000011573 trace mineral Substances 0.000 description 2
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 1
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000003213 activating effect Effects 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 102000011759 adducin Human genes 0.000 description 1
- 108010076723 adducin Proteins 0.000 description 1
- LFVGISIMTYGQHF-UHFFFAOYSA-N ammonium dihydrogen phosphate Chemical compound [NH4+].OP(O)([O-])=O LFVGISIMTYGQHF-UHFFFAOYSA-N 0.000 description 1
- 229910000387 ammonium dihydrogen phosphate Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- YYRMJZQKEFZXMX-UHFFFAOYSA-L calcium bis(dihydrogenphosphate) Chemical compound [Ca+2].OP(O)([O-])=O.OP(O)([O-])=O YYRMJZQKEFZXMX-UHFFFAOYSA-L 0.000 description 1
- 229910000389 calcium phosphate Inorganic materials 0.000 description 1
- 239000004202 carbamide Substances 0.000 description 1
- 150000001732 carboxylic acid derivatives Chemical class 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000029087 digestion Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 210000003608 fece Anatomy 0.000 description 1
- 230000035558 fertility Effects 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 239000010871 livestock manure Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 235000019837 monoammonium phosphate Nutrition 0.000 description 1
- 239000006012 monoammonium phosphate Substances 0.000 description 1
- 235000019691 monocalcium phosphate Nutrition 0.000 description 1
- 239000002686 phosphate fertilizer Substances 0.000 description 1
- 229940072033 potash Drugs 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 235000015320 potassium carbonate Nutrition 0.000 description 1
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Substances [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 1
- OTYBMLCTZGSZBG-UHFFFAOYSA-L potassium sulfate Chemical compound [K+].[K+].[O-]S([O-])(=O)=O OTYBMLCTZGSZBG-UHFFFAOYSA-L 0.000 description 1
- 229910052939 potassium sulfate Inorganic materials 0.000 description 1
- 235000011151 potassium sulphates Nutrition 0.000 description 1
- 239000002688 soil aggregate Substances 0.000 description 1
Classifications
-
- 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
- C05G3/80—Soil conditioners
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05B—PHOSPHATIC FERTILISERS
- C05B17/00—Other phosphatic fertilisers, e.g. soft rock phosphates, bone meal
-
- 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
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Soil Sciences (AREA)
- Pest Control & Pesticides (AREA)
- Fertilizers (AREA)
Abstract
The invention belongs to the field of crop fertilizer, and specifically relates to a stable phosphor-oxygen amide fertilizer and a preparation method thereof. The stable phosphor-oxygen amide fertilizer is composed of phosphor-oxygen amide and humic acid, wherein the molecular formula of phosphor-oxygen amide is PO(NH2)3. After the combination between humic acid and phosphor-oxygen amide, the loss of phosphor-oxygen amide can be prevented, the utilization rate of nitrogen and phosphor in phosphor-oxygen amide can be increased, and at the same time, the fertilizer can increase the granule composition in soil, and thus promotes the crop growth.
Description
Technical field
The invention belongs to the fertilizer field of farm crop, more precisely relate to a kind of stability phosphorus oxanamide fertilizer fertilizer of high utilization rate.
Background technology
The current population of China sharply increases, and significantly increasing also appears in grain demand, and more and more focuses on quality, but the cultivated area of China is few, and arable area is only 1.4 mu per capita, be equivalent to about 1/3 of world's per capita area of cultivated farmland, be equivalent to 1/8 of U.S.'s per capita area of cultivated farmland.Due to the continuous minimizing of China's cultivated area and the continuous increase of food demand, improving the output of farm crop, is an effective way of dealing with problems.
Improve the use that one of effective ways of crop yield are fertilizer, the use of fertilizer can be crop provides nutritive substance, promotes plant growth, improves output.But the active constituent content of general fertilizers is lower at present, and the utilization ratio of fertilizer is not high, and if urea content is about 46%, in calcium superphosphate, phosphorus content is about 13%, and the content of potassium sulfate is about 50%.In order to improve crop yield, also occurred concentration first to higher synthetic fertilizer, if monoammonium phosphate content is about 70%, potassium primary phosphate, its content is about 80%.Though these fertilizer content are high, fertilizer this season utilization ratio is very low, and nitrogenous fertilizer only has 30% ~ 35%, and phosphate fertilizer is about 10% ~ 20%, and potash fertilizer is 35% ~ 50%, lower than world average level 15% ~ 20%.
In order to improve the utilization ratio of fertilizer, there is synergistic agent, the new-type fertilizer such as chelating fertilizer and slow-release fertilizer.Synergistic agent is general and fertilizer is used in combination, improves Soil Microorganism activity, promotes that crop is to the absorption of fertilizer; Main and the medium trace element chelating of chelating fertilizer, the trace element forming not easily leaching or be fixed, for Crop; Slow-release fertilizer, mainly through additive or coating mode, makes fertilizer slow releasing, improves the utilization ratio of fertilizer.
According to above-mentioned, though current fertilizer aspect has the higher fertilizer of effective component content and the high fertilizer of fertilizer utilization, the high simultaneously fertilizer that utilization ratio is high of fertilizer content is little.High-content fertilizer phosphorus oxanamide is the fertilizer that a kind of nitrogen and phosphorus content is high, but is easy to be hydrolyzed into phosphate radical and ammonium nitrogen in water, phosphate radical easily with soil in metal ion be combined generation indissoluble phosphorus, ammonium nitrogen easily volatilizees, and causes utilization ratio low.
Summary of the invention
In order to solve the problem, prevent phosphate radical from being fixed by soil metal ion, preventing the volatilization of nitrogen, improve the utilization ratio of phosphorus oxanamide, the present invention proposes a kind of stability phosphorus oxanamide fertilizer and preparation method thereof.This fertilizer is that with phosphorus oxanamide under the effect of catalyzer, humic acid is connected by peptide bond with phosphorus oxanamide, makes the nitrogen in phosphorus oxanamide and phosphorus reach fixing, becomes a kind of phosphorus oxanamide fertilizer of high utilization rate of stability by adding humic acid.This stability phosphorus oxanamide Nitrogen phosphorus content is high, and fertilizer amount is few, can increase the vertical movement distance of phosphorus in soil, and the volatilization reducing nitrogen is run off, and improves the utilization ratio of fertilizer, increases soil aggregate, keeps soil from packing together, and reaches the effect that joint is fertile.
A kind of stability phosphorus oxanamide fertilizer, it is characterized in that, this fertilizer under the condition of catalyzer, is connected to become a kind of stable fertilizer by phosphorus oxanamide and humic acid by peptide bond.
It consists of following weight part:
Phosphorus oxanamide: 85 ~ 95 parts,
Humic acid: 5 ~ 15 parts.
The structural formula of high-content fertilizer phosphorus oxanamide described above is:
, its molecular weight is 95, and wherein nitrogen content is 31% ~ 33%, phosphorus content (P
2o
5) be 61% ~ 63%, its nitrogen phosphorus total content is 92% ~ 94%, and nutritive ingredient is high.In this high-content fertilizer molecular structure, containing three hydrophilic aminos, be very easily dissolved in water, and be hydrolyzed into ammonium nitrogen and phosphate radical.After ammonium nitrogen is manured into soil, due to the effect of temperature, illumination or microorganism, highly volatile runs off.Phosphate radical is in soil, and the metal ion easily in soil is combined, and generates insoluble phosphate, not easily absorbed by crops, causes soil compaction simultaneously.
Humic acid described above is natural humus acid, the carboxylic acid contained in humic acid, under catalyzer existent condition, heating is combined with phosphorus oxanamide, and both are connected by peptide bond, phosphorus oxanamide can be fixed, prevent the volatilization of nitrogen, increase the vertical miles of relative movement of phosphorus, reduce soil to phosphorus fixation, improve the utilization ratio of nitrogen and phosphorus, reduce fertilizer amount, promote plant growth, improve crop yield, reduce chemical fertilizer to the pollution of soil.
A kind of stability phosphorus oxanamide of the present invention fertilizer, it is characterized in that, its preparation method comprises the following steps:
(1) 200 ~ 500 orders, by humic acid are crushed to, for subsequent use;
(2), be added in stirred autoclave by the humic acid after pulverizing, add high-content fertilizer phosphorus oxanamide and catalyzer, setting mixing speed is 50 ~ 80r/min simultaneously, and setting temperature in the kettle is 40 ~ 60 DEG C, reacts 2 ~ 5h with this understanding;
(3), by step (2) gained mixture send into after carrying out drying in low-temperature drier, obtain a kind of stability phosphorus oxanamide fertilizer.
Catalyzer described in above-mentioned steps (2) is DMAP (DMAP), and its consumption is 0.01% ~ 2% of the mole number of phosphorus oxanamide.
Low-temperature drier described in above-mentioned steps (3) is Vacuumdrier, carries out drying in a vacuum.When the pressure is reduced, the boiling point lowering of water, can make water be evaporated at a lower temperature, and can not make manure digestion, wherein in Vacuumdrier, pressure is 7 ~ 20Kpa simultaneously.
The present invention plants stability phosphorus oxanamide fertilizer and preparation method thereof, amino in phosphorus oxanamide and humic acid react under the heating condition of gentleness, both are connected by peptide bond, phosphorus oxanamide can be fixed by humic acid, in being manured into soil, the slow releasing of fertilizer Absorbable organic halogens, prevents the volatile flow of nitrogenous fertilizer to become estranged fixing in soil of phosphorus, improves the utilization ratio of nitrogen phosphorus in phosphorus oxanamide.This fertilizer content is high simultaneously, and fertilizer amount is few, decreases the pollution that a large amount of fertilizer application causes soil, reaches the effect that joint is fertile.
A kind of stability phosphorus oxanamide of the present invention fertilizer and preparation method thereof, its outstanding feature and beneficial effect are:
1, fertilizer content of the present invention is high, and in phosphorus oxanamide, nitrogen phosphorus effective constituent is 92% ~ 94%, and fertilizer amount is few, and after being combined with humic acid, fertilizer Stable Release, fertilizer loss is few, and utilization rate of fertilizer is high.
2, fertilizer materials of the present invention are few, can reduce the pollution to soil, keep soil from packing together, and can increase the crumb structure of soil, activating soil simultaneously, promote soil fertility, promote plant growth, improve crop yield.
Embodiment
Below by way of embodiment, the present invention is described in further detail, but should not be construed as scope authority of the present invention and be only limitted to following example.
embodiment 1
A kind of stability phosphorus oxanamide fertilizer and preparation method thereof, its synthesis component proportion is following weight part:
Phosphorus oxanamide: 85 parts,
Humic acid: 5 parts,
Its preparation methods steps:
(1), by 5 parts of humic acid 200 ~ 500 orders are crushed to, for subsequent use;
(2), be added in stirred autoclave by the humic acid after pulverizing, add 85 parts of phosphorus oxanamides and catalyzer, setting mixing speed is 50 ~ 80r/min simultaneously, and setting temperature in the kettle is 40 ~ 60 DEG C, reacts 2 ~ 5h with this understanding;
(3), by step (2) gained mixture send in Vacuumdrier, setting pressure is 7Kpa, and dry 3 ~ 6h, obtains a kind of stability phosphorus oxanamide fertilizer with this understanding.
embodiment 2
A kind of stability phosphorus oxanamide fertilizer and preparation method thereof, its synthesis component proportion is following weight part:
Phosphorus oxanamide: 90 parts,
Humic acid: 10 parts,
Its preparation methods steps:
(1), by 10 parts of humic acid 200 ~ 500 orders are crushed to, for subsequent use;
(2), be added in stirred autoclave by the humic acid after pulverizing, add 90 parts of phosphorus oxanamides and catalyzer, setting mixing speed is 50 ~ 80r/min simultaneously, and setting temperature in the kettle is 40 ~ 60 DEG C, reacts 2 ~ 5h with this understanding;
(3), by step (2) gained mixture send in Vacuumdrier, setting pressure is 10Kpa, and dry 3 ~ 6h, obtains a kind of stability phosphorus oxanamide fertilizer with this understanding.
embodiment 3
A kind of stability phosphorus oxanamide fertilizer and preparation method thereof, its synthesis component proportion is following weight part:
Phosphorus oxanamide: 90 parts,
Humic acid: 12 parts,
Its preparation methods steps:
(1), by 12 parts of humic acid 200 ~ 500 orders are crushed to, for subsequent use;
(2), be added in stirred autoclave by the humic acid after pulverizing, add 90 parts of phosphorus oxanamides and catalyzer, setting mixing speed is 50 ~ 80r/min simultaneously, and setting temperature in the kettle is 40 ~ 60 DEG C, reacts 2 ~ 5h with this understanding;
(3), by step (2) gained mixture send in Vacuumdrier, setting pressure is 15Kpa, and dry 3 ~ 6h, obtains a kind of stability phosphorus oxanamide fertilizer with this understanding.
embodiment 4
A kind of stability phosphorus oxanamide fertilizer and preparation method thereof, its synthesis component proportion is following weight part:
Phosphorus oxanamide: 95 parts,
Humic acid: 15 parts,
Its preparation methods steps:
(1), by 15 parts of humic acid 200 ~ 500 orders are crushed to, for subsequent use;
(2), be added in stirred autoclave by the humic acid after pulverizing, add 95 parts of phosphorus oxanamides and catalyzer, setting mixing speed is 50 ~ 80r/min simultaneously, and setting temperature in the kettle is 40 ~ 60 DEG C, reacts 2 ~ 5h with this understanding;
(3), by step (2) gained mixture send in Vacuumdrier, setting pressure is 20Kpa, and dry 3 ~ 6h, obtains a kind of stability phosphorus oxanamide fertilizer with this understanding.
Claims (4)
1. a stability phosphorus oxanamide fertilizer, is characterized in that: this phosphorus oxanamide contains humic acid, and its proportion of composing is: phosphorus oxanamide 85 ~ 95 parts, humic acid 5 ~ 15 parts; The structural formula of wherein said phosphorus oxanamide is
, nitrogen phosphorus total content is 92% ~ 94%; Described humic acid is natural humus acid.
2. a kind of stability phosphorus oxanamide fertilizer according to claim 1, it is characterized in that: its preparation method is after humic acid is crushed to 200 ~ 500 orders, add in stirred autoclave, add phosphorus oxanamide and catalyzer simultaneously, setting mixing speed is 50 ~ 80r/min, and setting temperature in the kettle is 40 ~ 60 DEG C, after reacting 2 ~ 5h with this understanding, send in low-temperature drier dry, obtain a kind of stability phosphorus oxanamide fertilizer.
3. the preparation method of a kind of stability phosphorus oxanamide fertilizer according to claim 2, it is characterized in that: described catalyzer is DMAP, its consumption is 0.01% ~ 2% of the mole number of phosphorus oxanamide.
4. the preparation method of a kind of stability phosphorus oxanamide fertilizer according to claim 2, it is characterized in that: described low-temperature drier is Vacuumdrier, in Vacuumdrier, pressure is 7 ~ 20Kpa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410621899.9A CN104402597B (en) | 2014-11-07 | 2014-11-07 | Stable phosphor-oxygen amide fertilizer and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410621899.9A CN104402597B (en) | 2014-11-07 | 2014-11-07 | Stable phosphor-oxygen amide fertilizer and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104402597A true CN104402597A (en) | 2015-03-11 |
| CN104402597B CN104402597B (en) | 2017-02-15 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1434006A (en) * | 2002-01-21 | 2003-08-06 | 中国科学院山西煤炭化学研究所 | Long-acting humic acid phosphate fertilizer and process for preparing same |
| CN101798246A (en) * | 2010-03-16 | 2010-08-11 | 陕西鼎华慧农生物科技有限公司 | Water-soluble fertilizer by complexing humic acid with plurality of nutrient elements and preparation method thereof |
| CN103086809A (en) * | 2013-01-10 | 2013-05-08 | 山西昌鑫生物农业科技有限公司 | Compound-mixed-type humic acid urea and preparation method thereof |
| CN103274798A (en) * | 2013-06-17 | 2013-09-04 | 中国农业科学院农业资源与农业区划研究所 | Humic acid synergistic ammonium phosphate and preparation method thereof |
-
2014
- 2014-11-07 CN CN201410621899.9A patent/CN104402597B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1434006A (en) * | 2002-01-21 | 2003-08-06 | 中国科学院山西煤炭化学研究所 | Long-acting humic acid phosphate fertilizer and process for preparing same |
| CN101798246A (en) * | 2010-03-16 | 2010-08-11 | 陕西鼎华慧农生物科技有限公司 | Water-soluble fertilizer by complexing humic acid with plurality of nutrient elements and preparation method thereof |
| CN103086809A (en) * | 2013-01-10 | 2013-05-08 | 山西昌鑫生物农业科技有限公司 | Compound-mixed-type humic acid urea and preparation method thereof |
| CN103274798A (en) * | 2013-06-17 | 2013-09-04 | 中国农业科学院农业资源与农业区划研究所 | Humic acid synergistic ammonium phosphate and preparation method thereof |
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Effective date of registration: 20170920 Address after: The information center the Guangxi Zhuang Autonomous Region 535000 Qinzhou Golden Bay East Street Qinnan district north of new building No. 3, No. 1004 long.. Patentee after: Guangxi fly International Travel Service Co., Ltd. Address before: Qingyang District of Chengdu City, Sichuan province 610091 Dragon Industrial Port East Road 4 Patentee before: Chengdu Xinkeli Chemical Sci-Tech Co., Ltd. |
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Granted publication date: 20170215 Termination date: 20201107 |