Effect of chemical fertilizer and manure application on N2O emission from reed canary grassland in Hokkaido, Japan

Jin, Tao; Shimizu, Mariko; Marutani, Satoru; Desyatkin, Alexey R.; Iizuka, Natsumi; Hata, Hiroshi; Hatano, Ryusuke

Effect of chemical fertilizer and manure application on N2O emission from reed canary grassland in Hokkaido, Japan

Jin, Tao; Shimizu, Mariko; Marutani, Satoru et al.

Soil Science & Plant Nutrition, 2010, 56(1), 53-65

Permalink : https://hdl.handle.net/2115/44778

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アクセス権	open access
URI	https://hdl.handle.net/2115/44778
タイトル	Effect of chemical fertilizer and manure application on N2O emission from reed canary grassland in Hokkaido, Japan
著者	Jin, Tao ; Shimizu, Mariko ; Marutani, Satoru ; Desyatkin, Alexey R. ; Iizuka, Natsumi ; Hata, Hiroshi ; Hatano, Ryusuke
著者名 Jin, Tao
著者名 Shimizu, Mariko
著者名 Marutani, Satoru
著者名 Desyatkin, Alexey R.
著者名 Iizuka, Natsumi
著者名 Hata, Hiroshi
著者名 Hatano, Ryusuke
言語	英語
キーワード	chemical fertilizer
	grassland
	manure
	N2O emission
	soil denitrifying enzyme activity
発行日	2010-02
出版者	Blackwell Publishing
収録物名	Soil Science & Plant Nutrition
巻(号)	56(1)
ページ	53-65
抄録	We evaluated the effect of chemical fertilizer and manure applications on N2O emission from a managed grassland by establishing three treatment plots of chemical N fertilizer (chemical fertilizer), manure combined chemical N fertilizer (manure) and no N fertilizer (control) at the Shizunai Experimental Livestock Farm in southern Hokkaido, Japan. N2O fluxes from soils were measured by a closed-chamber method from May 2005 to April 2008. Soil denitrifying enzyme activity (DEA) in root-mat layer (0-2.5cm) and mineral soil layer (2.5-5cm) of each treatment plot was measured by an acetylene inhibition method after treatment with NO^[-]_[3]-N and glucose addition and neither NO^[-]_[3]-N nor glucose addition, respectively. Annual N2O emission ranged from 0.6 4.9 kg N2O-N ha^[-1]yr^[-1], with the highest observed in manure plot and lowest in control plot. Chemical fertilizer-induced emission factor (EF) (range: 0.85-1.32%) was significantly higher than manure-induced EF (range 0.35-0.85%). Denitrification potential of soil horizons was measured with addition of both NO^[-]_[3]-N and glucose, which was significantly higher in root-mat soil than that in mineral soil. Soil DEA in root-mat in NO^[-]_[3]-N addition with and without addition of glucose had a significantly positive correlation with soil pH (P < 0.05). Soil pH was significantly influenced by N source, which was significantly lower in chemical fertilizer plot than that in control and manure plot. For a fixed quantity of available N, the application of manure could result in higher N2O emission compared with chemical fertilizer owing to high soil pH values under manure application than under chemical fertilizer application.
資源タイプ	学術雑誌論文
出版タイプ	Accepted Manuscript
権利情報	The definitive version is available at www.blackwellsynergy.com
PISSN	0038-0768
関連情報 (isVersionOf)	出版社版DOI https://doi.org/10.1111/j.1747-0765.2010.00447.x