2011 Fiscal Year Final Research Report
Analysis of nitrogen cycle and nitrous oxide production in upland soils under different managements
| Project/Area Number |
21310003
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Environmental dynamic analysis
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| Research Institution | Ibaraki University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
NARISAWA Kazuhiko 茨城大学, 農学部, 准教授 (90431650)
KOMATSUZAKI Masakazu 茨城大学, 農学部, 准教授 (10205510)
KATO Tasuku 東京農工大学, 農学研究院, 准教授 (10302332)
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| Co-Investigator(Renkei-kenkyūsha) |
HASHIMOTO Tomoyoshi 中央農業総合研究センター, 上席研究員 (90343946)
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| Research Collaborator |
LIYAN Tono 東京農工大学, 大学院・連合農学研究科, 博士課程
YASUDA Tomoaki 茨城大学, 大学院・農学研究科, 修士課程
AKAIKE Megumi 茨城大学, 大学院・農学研究科, 修士課程
KAWAMURA Akihiro 茨城大学, 大学院・農学研究科, 修士課程
NARAOKA Masahiro 茨城大学, 大学院・農学研究科, 修士課程
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| Project Period (FY) |
2009 – 2011
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| Keywords | 温室効果ガス / 亜酸化窒素 / 脱窒菌 / 不耕起栽培 / カバークロップ |
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| Research Abstract |
One of the major results of this study is to present the data on the seasonal variation of nitrous oxide (N_2O)-producing potential in no-tilled upland soils and the contribution of fungi to soil N_2O production. Our results showed that the soil N_2O-producing potential was the highest just before the harvest of summer crop (soy bean), winter-cover cropping enhanced the potential after the cut down of cover crop in spring, and the fungal N_2O-producing activity was comparable to the bacterial activity when the soils were kept at high water content.
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Research Products
(22 results)
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[Presentation] Predomonance of nitrous oxide-producing fungus, Mortierella elongate, in no-tilled, low-Nitrogen input upland soils2010
Author(s)
Sato, Y., T. Nishizawa, M. Umezu, K. Tsuruta, K. Narisawa, M. Komatsuzaki, H. Ohta
Organizer
13th International Symposium on Microbial Ecology
Place of Presentation
シアトル, アメリカ
Year and Date
2010-08-23
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