CN102391046B - Special inorganic compound fertilizer for wheat produced by utilizing forest branch ash and preparation method thereof - Google Patents
Special inorganic compound fertilizer for wheat produced by utilizing forest branch ash and preparation method thereof Download PDFInfo
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- CN102391046B CN102391046B CN 201110223811 CN201110223811A CN102391046B CN 102391046 B CN102391046 B CN 102391046B CN 201110223811 CN201110223811 CN 201110223811 CN 201110223811 A CN201110223811 A CN 201110223811A CN 102391046 B CN102391046 B CN 102391046B
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- 239000003337 fertilizer Substances 0.000 title claims abstract description 62
- 241000209140 Triticum Species 0.000 title claims abstract description 33
- 235000021307 Triticum Nutrition 0.000 title claims abstract description 33
- 150000002484 inorganic compounds Chemical class 0.000 title abstract 3
- 229910010272 inorganic material Inorganic materials 0.000 title abstract 3
- 238000002360 preparation method Methods 0.000 title description 8
- 235000015097 nutrients Nutrition 0.000 claims abstract description 8
- 239000000203 mixture Substances 0.000 claims abstract description 7
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 7
- 239000002028 Biomass Substances 0.000 claims abstract description 4
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 11
- 239000004202 carbamide Substances 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 11
- LFVGISIMTYGQHF-UHFFFAOYSA-N ammonium dihydrogen phosphate Chemical compound [NH4+].OP(O)([O-])=O LFVGISIMTYGQHF-UHFFFAOYSA-N 0.000 claims description 10
- 235000019837 monoammonium phosphate Nutrition 0.000 claims description 10
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 claims description 9
- 238000005469 granulation Methods 0.000 claims description 7
- 230000003179 granulation Effects 0.000 claims description 7
- 239000000126 substance Substances 0.000 claims description 7
- 229910000387 ammonium dihydrogen phosphate Inorganic materials 0.000 claims description 6
- 239000006012 monoammonium phosphate Substances 0.000 claims description 6
- 238000012216 screening Methods 0.000 claims description 5
- 239000004267 EU approved acidity regulator Substances 0.000 claims description 4
- 239000002994 raw material Substances 0.000 claims description 4
- 235000021049 nutrient content Nutrition 0.000 claims description 3
- 229910052700 potassium Inorganic materials 0.000 claims description 3
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims 2
- 241000218691 Cupressaceae Species 0.000 claims 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims 1
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims 1
- 239000002131 composite material Substances 0.000 claims 1
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract description 10
- 239000002689 soil Substances 0.000 abstract description 7
- 230000012010 growth Effects 0.000 abstract description 5
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 238000010248 power generation Methods 0.000 abstract description 3
- DLYUQMMRRRQYAE-UHFFFAOYSA-N tetraphosphorus decaoxide Chemical compound O1P(O2)(=O)OP3(=O)OP1(=O)OP2(=O)O3 DLYUQMMRRRQYAE-UHFFFAOYSA-N 0.000 abstract description 3
- CHWRSCGUEQEHOH-UHFFFAOYSA-N potassium oxide Chemical compound [O-2].[K+].[K+] CHWRSCGUEQEHOH-UHFFFAOYSA-N 0.000 abstract description 2
- 229910001950 potassium oxide Inorganic materials 0.000 abstract description 2
- 238000002485 combustion reaction Methods 0.000 abstract 2
- 235000021048 nutrient requirements Nutrition 0.000 abstract 1
- 241000196324 Embryophyta Species 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000001816 cooling Methods 0.000 description 4
- 210000003608 fece Anatomy 0.000 description 4
- 239000010871 livestock manure Substances 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 3
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 3
- WZLMXYBCAZZIRQ-UHFFFAOYSA-N [N].[P].[K] Chemical compound [N].[P].[K] WZLMXYBCAZZIRQ-UHFFFAOYSA-N 0.000 description 3
- 239000002585 base Substances 0.000 description 3
- 235000013339 cereals Nutrition 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 230000000050 nutritive effect Effects 0.000 description 3
- 239000011574 phosphorus Substances 0.000 description 3
- 229910052698 phosphorus Inorganic materials 0.000 description 3
- 238000011109 contamination Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- 239000011707 mineral Substances 0.000 description 2
- 235000010755 mineral Nutrition 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 229910052761 rare earth metal Inorganic materials 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 239000010902 straw Substances 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 108010068370 Glutens Proteins 0.000 description 1
- 229910002651 NO3 Inorganic materials 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000003698 anagen phase Effects 0.000 description 1
- FFBHFFJDDLITSX-UHFFFAOYSA-N benzyl N-[2-hydroxy-4-(3-oxomorpholin-4-yl)phenyl]carbamate Chemical compound OC1=C(NC(=O)OCC2=CC=CC=C2)C=CC(=C1)N1CCOCC1=O FFBHFFJDDLITSX-UHFFFAOYSA-N 0.000 description 1
- 238000009395 breeding Methods 0.000 description 1
- 230000001488 breeding effect Effects 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 235000001465 calcium Nutrition 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- YWEUIGNSBFLMFL-UHFFFAOYSA-N diphosphonate Chemical compound O=P(=O)OP(=O)=O YWEUIGNSBFLMFL-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 235000019197 fats Nutrition 0.000 description 1
- 230000004720 fertilization Effects 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 235000021312 gluten Nutrition 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000000877 morphologic effect Effects 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 235000006180 nutrition needs Nutrition 0.000 description 1
- 230000020477 pH reduction Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000008635 plant growth Effects 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 235000018102 proteins Nutrition 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 150000002910 rare earth metals Chemical class 0.000 description 1
- -1 rare earth nitrate Chemical class 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000009331 sowing Methods 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 239000011573 trace mineral Substances 0.000 description 1
- 235000013619 trace mineral Nutrition 0.000 description 1
- 235000013343 vitamin Nutrition 0.000 description 1
- 239000011782 vitamin Substances 0.000 description 1
- 229940088594 vitamin Drugs 0.000 description 1
- 229930003231 vitamin Natural products 0.000 description 1
- 150000003722 vitamin derivatives Chemical class 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Landscapes
- Fertilizers (AREA)
Abstract
The invention belongs to the technical field of agricultural fertilizers. Combustion ash from a biomass electric power plant after electric power generation by utilizing forest branches is mixed with certain inorganic fertilizer components according to the growth characteristics and the nutrient requirements of wheat, so as to make the obtained mixture into a special fertilizer for the wheat with abundant nutrients. The content of the total nutrients of a special inorganic compound fertilizer for the wheat, which is provided by the invention, is 35.18%-45.03%, wherein the content of nitrogen is 16.58%-22.09%; the content of phosphorus pentoxide is 7.63%-11.13%; and the content of potassium oxide is 10.44%-12.82%. The mixing ratio of the nutrients is reasonable; the special inorganic compound fertilizer for the wheat is mainly applicable to the cultivation of the wheat in purple soil and yellow soil in the Sichuan basin, and has beneficial effects on the growth and the yield of the wheat to some extent; and synchronously, an effective approach is provided for the reasonable utilization of the combustion ash in the electric power generation by utilizing biomasses.
Description
Technical field
The present invention relates to a kind of wheat special inorganic Chemical Mixed Fertilizer that utilizes the production of forest branch ash and preparation method thereof, belong to the agricultural fertilizer technical field.
Background technology
Along with developing rapidly of biomass power generation industry, after its forest branch burning, the quantity discharged of ash content increases year by year, as can not in time carrying out recycling, pollutes the environment, and makes biomass power plant can't realize normal production.Contain phosphorus and potassium and the required trace element of some plant growths in the forest branch ash, easily cause nutrient loss but use separately, using separately for a long time can the change soil physico-chemical property.Therefore take the forest branch ash as main raw material, according to nutrient demand and the growth mechanism of each crop, be equipped with a certain proportion of nitrogen phosphorus potassium inorganic fertilizer and produce Special Fertilizers for Various Crops and can realize reasonable utilization to the forest branch ash, environmental contamination reduction.
Wheat is one of staple food crop of Sichuan Basin, and it contains the nutritive substance such as starch, fat, protein, VITAMIN, calcium, iron of needed by human body.So far, breeding improvement becomes the key that improves the wheat yield level, simultaneously, also can be subjected to the remarkably influenced of soil, climatic factor and cultivation step.Sichuan Basin is Chinese most typical mesa hills area, blazons take the hills, the small stream ditch is its remarkable geographic entity in length and breadth, and soil parent material mostly is red-purple sandstone and the mud stone of soft and hard alternation.Under its unique ecological environmental condition, suitable application quantity of nitrogen phosphorus potassium and the proportioning of High-Yield Cultivation of Wheat it be not immediately clear.
The patent of invention of China Patent Publication No. CN101134691A and CN1403420A all discloses a kind of compound method of fertilizer specially for wheat, and proportioning is N: P
2O
5: K
2O: Zn: Mn: Mo: B: Fe: rare earth nitrate: medical stone is 1:1.1-1.2: 0.5-0.6: 0.01-0.02: 0.02-0.03: 0.01-0.02: 0.01-0.02: 0.01-0.02: 0.01-0.02: 0.01-0.02, although these two inventions all belong to fertilizer specially for wheat, but its concrete formula comparatively complicated (needing ten kinds of starting material), and rare earth resources is rare, and cost is higher.China Patent Publication No. is that the patent of invention of CN101492319A discloses a kind of fertilizer specially for wheat that can realize nitrogen, sulphur nutritive equilibrium on the corresponding fertilization method, but this special fertilizer is applicable to the winter wheat of area, Plain of Huanghua Area plantation, particularly suitable strong gluten wheat, and need Nitrogen Top Dressing twice, strengthened labour cost.China Patent Publication No. CN1793074A discloses the method for utilizing plant straw ash to produce multi-element fertilizer, but adds too many waste may reduce the quality of fertilizer, jeopardizes agricultural product security.China Patent Publication No. CN1907920A discloses a kind of method of utilizing straw ash to produce nitrogen-phosphorus-potassium compound fertilizer, but the plant ash of the method neutral and alkali and monoammonium phosphate directly mix with urea, easily causes the loss of phosphorus fixation and urea.China Patent Publication No. CN101020612A discloses a kind of plant organic potassic fertilizer, but on the low side because of acidity in preparation process, can increase the weight of soil acidification, and nitrogen, phosphorus nutrient content are low, uses in a large number and can strengthen labour cost.
Summary of the invention
The invention provides a kind of take the forest branch ash as raw material, fertilizer specially for wheat that assembly is produced with a certain proportion of inorganic fertilizer and preparation method thereof.The present invention is equipped with a certain proportion of inorganic fertilizer according to the Sichuan wheat growth characteristics, has both satisfied wheat each vegetative period to the demand of nutritive element, can reasonably utilize to the forest branch ash again environmental contamination reduction simultaneously.
The technical scheme that the present invention solves the problems of the technologies described above is:
A kind of fertilizer specially for wheat is comprised of forest branch ash and inorganic fertilizer, and described forest branch ash and inorganic fertilizer are by weight, total nutrient is 35.18%-45.03%, wherein nitrogen content is 16.58%-22.09%, and phosphorus pentoxide content is 7.63%-11.13%, and potassium oxide content is 10.44%-12.82%.。
The preparation method of this fertilizer specially for wheat comprises the steps:
A, acidity adjustment: the forest branch ash is put into reaction tank, add acidity regulator, regulate its pH between 6.5-7.5, wherein forest branch ash nutrient content is P
2O
5Be 3%-6%, K
2O is 7.45%-12.8%.
B, mixing, granulation: the forest branch ash after processing is put into tablets press, adds simultaneously the urea of preset proportion, monoammonium phosphate, and Repone K and tamanori fully mix, and wherein the specification of quality of urea is that N contains 46.3%, and the specification of quality of monoammonium phosphate is to contain P
2O
5Be that 44%, N is 11%, the specification of quality of Repone K is to contain K
2O is 60%; Granulation when the fertilizer granularity reaches requirement, stops granulation.
C, oven dry: control the dram temperature, allow the fertiliser granulates water content can be cooling lower than 2%.
D, screening, packing: be sieved into the fertiliser granulates that particle diameter is 2-4mm, the packing of weighing.
Beneficial effect of the present invention is:
A, solve the processing problem of forest branch ash, avoided the pollution to environment.
The loss of nutrient in the forest branch ash has been avoided in the combination of B, forest branch ash and mineral manure, possesses simultaneously the quick-acting fertilizer efficiency of mineral manure, can satisfy the nutritional needs of each growth phase of wheat.
C, special fertilizer adopt disposable applying, and do not do and topdress, and be easy to use, reduced labour cost.
D, raw material of the present invention easily obtain, and cost is low, and preparation process is simple, and be low to the machinery equipment requirement of preparation, saves cost, is beneficial to large-scale promotion application.
Embodiment
The present invention is described in further detail below in conjunction with embodiment.But this should be interpreted as that the scope of the above-mentioned theme of the present invention only limits to following embodiment.
Special fertilizer 1
Take 22 parts of forest branch ashs, add 7 parts of acidity regulators, be equipped with 32 parts of urea, 16 parts of monoammonium phosphates, 14 parts of Repone K, 9 parts of tamanoris mix, through granulation, oven dry, cooling, screening, pack namely makes this special fertilizer 1.
Special fertilizer 2
Take 20 parts of forest branch ashs, add 6 parts of acidity regulators, be equipped with 38 parts of urea, 15 parts of monoammonium phosphates, 18 parts of Repone K, 3 parts of tamanoris mix, through granulation, oven dry, cooling, screening, pack namely makes this special fertilizer 2.
Special fertilizer 3
Take 11 parts of forest branch ashs, add 3 parts of acidity regulators, be equipped with 42 parts of urea, 24 parts of monoammonium phosphates, 18 parts of Repone K, 2 parts of tamanoris mix, through granulation, oven dry, cooling, screening, pack namely makes this special fertilizer 3.
Be below actual manure trial:
Experimental technique: establish altogether 4 processing, repeat 3 times, each tests residential quarter area 9m
2(long 3m, wide 3m).Adopted bar bulk application bonnet soil on October 29th, 2010, strip sowing (river wheat 42) immediately, seed is avoided directly contacting with fertilizer, on May 9th, 2011 getting wheat.
Process 1: do not apply fertilizer;
Process 2: special fertilizer 1(N-P
2O
5-K
2O:16-9-10) execute by 60kg/ mu base;
Process 3: special fertilizer 2(N-P
2O
5-K
2O:19-8-13) execute by 60kg/ mu base;
Process 4: special fertilizer 3(N-P
2O
5-K
2O:22-11-12) execute by 60kg/ mu base.
The impact of table 1 special fertilizer on wheat growth proterties and output
| Numbering | Process | Plant height (cm) | Number of productive ear (fringe/mu) | Grain number per spike (grain/fringe) | Thousand seed weight (g) | Output (kg/ mu) | Fertilizer cost (unit/mu) |
| 1 | CK | 92 | 177779 | 43 | 46 | 352 | 0 |
| 2 | Special fertilizer 1 | 95 | 184001 | 45 | 48 | 397 | 110 |
| 3 | Special fertilizer 2 | 102 | 200890 | 56 | 46 | 520 | 129 |
| 4 | Special fertilizer 3 | 99 | 227557 | 50 | 47 | 537 | 148 |
The manure trial result shows, after using this special fertilizer, every morphological index and the output of wheat obviously are better than blank, and application effect is comparatively obvious, is comparatively desirable fertilizer specially for wheat.Wherein use special fertilizer 2 and the rear Plant Height in Wheat of special fertilizer 3 and grain number per spike and all obviously be better than other processing, and wheat yield increases production respectively 48% and 53% than blank, increase production respectively 31% and 35% than special fertilizer 1, but special fertilizer 3 fertilizer costs are higher, therefore recommend use special fertilizer 2.
Claims (4)
1. the wheat special inorganic Chemical Mixed Fertilizer that utilizes the forest branch ash to produce, it is characterized in that: described inorganic composite mixed fertilizer is comprised of forest branch ash and inorganic fertilizer, forest branch ash and inorganic fertilizer are by weight, forest branch ash 11-22 part, urea 32-42 part, monoammonium phosphate 15-24 part, Repone K 14-18 part, tamanori 2-9 part, acidity regulator 3-7 part, its total nutrient is 35.18%-45.03%, and wherein said forest branch ash is that its nutrient content is P take the combust of cypress as the biomass power plant of main generating raw material
2O
5Be 3%-6%, K
2O is 7.45%-12.80%; Tamanori is wilkinite; Acidity regulator is that phosphoric acid and sulfuric acid are by weight the mixture of 4:1.
2. wheat special inorganic Chemical Mixed Fertilizer according to claim 1, is characterized in that: preferred 20 parts of forest branch ashs, 38 parts of urea, 15 parts of monoammonium phosphates, 18 parts of Repone K, 6 parts of acidity regulators, the special fertilizer of 3 parts of tamanoris.
3. method for preparing wheat special inorganic Chemical Mixed Fertilizer according to claim 1, it is characterized in that: after the forest branch ash is carried out acidity adjustment, add the fully mixing of urea, monoammonium phosphate, Repone K and tamanori, granulation, oven dry, screening of preset proportion and make.
4. method according to claim 3, it is 46.3% that wherein said urea contains N, monoammonium phosphate contains P
2O
5Be 44%, N is 11%, Repone K contains K
2O is 60%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110223811 CN102391046B (en) | 2011-08-05 | 2011-08-05 | Special inorganic compound fertilizer for wheat produced by utilizing forest branch ash and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110223811 CN102391046B (en) | 2011-08-05 | 2011-08-05 | Special inorganic compound fertilizer for wheat produced by utilizing forest branch ash and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102391046A CN102391046A (en) | 2012-03-28 |
| CN102391046B true CN102391046B (en) | 2013-06-05 |
Family
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|---|---|---|---|
| CN 201110223811 Expired - Fee Related CN102391046B (en) | 2011-08-05 | 2011-08-05 | Special inorganic compound fertilizer for wheat produced by utilizing forest branch ash and preparation method thereof |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102765998A (en) * | 2012-06-27 | 2012-11-07 | 南京农业大学 | Acid soil conditioner prepared by biomass power generation waste and preparation method of acid soil conditioner |
| CN103570413A (en) * | 2012-07-28 | 2014-02-12 | 文平兰 | Special formula fertilizer for wheat |
| CN104692946A (en) * | 2015-03-17 | 2015-06-10 | 河北盛龙农业科技有限公司 | Special inorganic compound fertilizer for wheat and preparation method thereof |
| CN105237108A (en) * | 2015-08-27 | 2016-01-13 | 广西桂林生物动力环保科技有限公司 | Composite fertilizer specially-used for wheat and preparation method thereof |
| CN105210702A (en) * | 2015-11-17 | 2016-01-06 | 郑州希硕物联科技有限公司 | Based on the method that biomass burning cultivates plants |
| CN110304954A (en) * | 2019-07-31 | 2019-10-08 | 北京航天国环技术有限公司 | A kind of processing method of waste phosphoric acid |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1907920A (en) * | 2006-08-03 | 2007-02-07 | 山东省农业科学院土壤肥料研究所 | Method of preparing NPK composite fertilizer using straw ash |
| CN101265137A (en) * | 2008-04-15 | 2008-09-17 | 山东省农业科学院土壤肥料研究所 | Multifunctional fertilizer dedicated for nursery stock and preparation method thereof |
-
2011
- 2011-08-05 CN CN 201110223811 patent/CN102391046B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1907920A (en) * | 2006-08-03 | 2007-02-07 | 山东省农业科学院土壤肥料研究所 | Method of preparing NPK composite fertilizer using straw ash |
| CN101265137A (en) * | 2008-04-15 | 2008-09-17 | 山东省农业科学院土壤肥料研究所 | Multifunctional fertilizer dedicated for nursery stock and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| Д.Н.普里亚尼施尼柯夫.草木灰-钾、磷、石灰肥料.《Д.Н.普里亚尼施尼柯夫院士选集第1卷农业化学中册》.北京市高等教育出版社,1955,第537页. * |
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| CN102391046A (en) | 2012-03-28 |
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