Experimental Determination of the Respiration Associated with Soybean/Rhizobium Nitrogenase Function, Nodule Maintenance, and Total Nodule Nitrogen Fixation

Abstract
The total metabolic cost of soybean (Glycine max L. Mer Clark) nodule nitrogen fixation was empirically separated into respiration associated with electron flow through nitrogenase and respiration associated with maintenance of nodule function.