@Article{bg-10-8269-2013,
AUTHOR = {Watanabe, T. and Bowatte, S. and Newton, P. C. D.},
TITLE = {A reduced fraction of plant N derived from atmospheric N (%Ndfa) and reduced rhizobial nifH gene numbers indicate a lower capacity for nitrogen fixation in nodules of white clover exposed to long-term CO$_{2}$ enrichment},
JOURNAL = {Biogeosciences},
VOLUME = {10},
YEAR = {2013},
NUMBER = {12},
PAGES = {8269--8281},
URL = {https://bg.copernicus.org/articles/10/8269/2013/},
DOI = {10.5194/bg-10-8269-2013}
}