2016 Fiscal Year Final Research Report
Decomposition of nitrogen within plant residues and environmental impacts - physical, biological and chemical controlling factors
| 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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| Project Period (FY) |
2014-07-18 – 2017-03-31
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| Keywords | 窒素循環 |
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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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| Free Research Field |
有機物分解
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