| Project/Area Number |
26520301
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 特設分野 |
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| Research Field |
Food Cycle Research
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| Research Institution | Hokkaido University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
森泉 美穂子 国立研究開発法人農業・食品産業技術総合研究機構, 中央農業総合研究センター, 主任研究員 (10220039)
石井 聡 北海道大学, 工学(系)研究科(研究院), 助教 (10612674)
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| Project Period (FY) |
2014-07-18 – 2017-03-31
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| Project Status |
Completed (Fiscal Year 2016)
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| Budget Amount *help |
¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2016: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2015: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2014: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
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| Keywords | 窒素循環 / 窒素 / 無機化 / 有機物分解 / 土壌 / 亜酸化窒素 / ヘアリーベッチ / 土壌有機物 / 分解 / アンモニア / 硝酸 / もみ殻くんたん / 微生物 / 黒ぼく土 / 灰色低地土 |
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| Outline of Final Research Achievements |
We used hairy vetch as an example of plant residue. Andosol and Fluvisol were used because they were common in Japan. Also, rice husk charcoal was evaluated. In Fluvisol, N2O emissions were higher when compared to those from Andosol. There was a possibility of nitrogen adsorption by rice husk charcoal. The amount of nitrate, links to water pollution, was higher in Andosol when compared to Fluvisol. In Fluvisol, denitrification rates could be larger. The molecular size distribution of organic-nitrogen, during the decomposition of hairy vetch was variable.
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