2012 Fiscal Year Final Research Report
Characterization of organic nitrogen from cattle manure compost based on the molecular weight distribution
| Project/Area Number |
22580073
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Plant nutrition/Soil science
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| Research Institution | National Agriculture and Food Research Organization |
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Principal Investigator |
MORIIZUMI Mihoko 独立行政法人農業・食品産業技術総合研究機構, 中央農業総合研究センター土壌肥料研究領域, 主任研究員 (10220039)
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| Co-Investigator(Kenkyū-buntansha) |
MATSUNAGA Toshiro 独立行政法人農業・食品産業技術総合研究機構, 中央農業総合研究センター土壌肥料研究領域, 上席研究員 (20355647)
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| Project Period (FY) |
2010 – 2012
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| Keywords | サイズ排除高速液体クロマトグラフィー / 化学発光窒素検出 / 土壌有機物 / 有機態窒素 |
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| Research Abstract |
Hot water extractable organic nitrogen from cattle manure compost and from soil applied with the compost were separated by size-exclusion HPLC and detected by chemiluminescent nitrogen detection (CLND) and spectroscopic approaches. It is revealed that the organic nitrogen is composed of three different categories; (1) biomolecule (>100kDa), (2) humic acid like material (100-20kDa), and fulvic acid like material (<20kDa).
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