Marcus-Wyner, L Simultaneous Measurement of NH(4) Absorption and N(2) Fixation by Glycine max L. : RESPONSE TO TEMPERATURE, pH, AND EXTERNAL NITROGEN CONCENTRATION. [electronic resource] - Plant physiology Feb 1982 - 460-4 p. digital Publication Type: Journal Article ISSN: 0032-0889 Standard No.: 10.1104/pp.69.2.460 doi