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Effects of Long-Term Fertilization Regimes on N2-Fixing Bacteria in a Luvisol Soil of Northeast China

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Abstract:

Long-term fertilization significantly inhibited the free-living N2-fixation rate (FNR) mainly because of the increased NO3–-N. DGGE profiles and redundancy analysis (RDA) plots clearly revealed that long-term fertilizations changed the community structures of N2-fixing bacteria (NFB) due to differences in N availability and pH. In addition, the differences in community composition were correlated with the changes in process rates for NFB (P < 0.05).

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Periodical:

Advanced Materials Research (Volume 599)

Pages:

23-26

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.599.23

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Online since:

November 2012

Authors:

Li Jia Cai, Yong Gang Xu, Wan Tai Yu

Keywords:

DGGE, Free-Living N2-Fixation Rate (FNR), N2-Fixing Bacteria (NFB)

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© 2012 Trans Tech Publications Ltd. All Rights Reserved

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