Over-winter dynamics of soil bacterial denitrifiers and nitrite ammonifiers influenced by crop residues with different carbon to nitrogen ratios

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• 作者：Enrico Tatti^a ; ¹ ; Claudia Goyer^a ; ^{claudia.goyer@agr.gc.ca} ; Bernie J. Zebarth^a ; Sophie Wertz^a ; David L. Burton^b ; Martin Chantigny^c ; Martin Filion^d ; Jan Zeng^a
• 关键词：Denitrification ; DNRA ; Cold soil ; Plant residue ; nrfA ; nirS ; nirK
• 刊名：Applied Soil Ecology
• 出版年：2017
• 出版时间：February 2017
• 年：2017
• 卷：110
• 期：Complete
• 页码：53-64
• 全文大小：600 K
• 卷排序：110

文摘

Soil communities were studied over-winter after barley and red clover plough down. Greater abundances were observed in barley-treated plots compared to red clover. Crop residues and time changed diversity of active and present communities. Communities responded similarly to residues despite their contrasting C:N ratios. Nitrous oxide emissions were greater in coldest months, irrespectively of crops.