Assessing nitrogen fixation in mixed- and single-species plantations of Eucalyptus globulus and Acacia Mearnsii
Mixtures of Eucalyptus globulus Labill. and Acacia mearnsii de Wildeman are twice as productive as E. globulus monocultures growing on the same site in East Gippsland, Victoria, Australia, possibly because of increased nitrogen (N) availability owing to N2 fixation by A. mearnsii. To investigate whether N2 fixation by A. mearnsii could account for the mixed-species growth responses, we assessed N2 fixation by the accretion method and the15N natural abundance method. Nitrogen gained by E....[Show more]
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