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Acetylene reduction assay of symbiotic N2 fixation under field conditions

, : Acetylene reduction assay of symbiotic N2 fixation under field conditions. Ecology 60(5): 1070-1072

Nitrogen fixation by Ceanothus velutinus var. velutinus and Sepherdia canadensis in the Blue Mountains of Eastern Oregon was assayed by the acetylene reduction technique. Acetylene was used as an internal standard during the field assays, eliminating volumetric transfer of gas samples from field sites to the laboratory and from vials to the gas chromatography column. The precision of the analysis was high, with low variability both within and among samples.


DOI: 10.2307/1936873

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