Manhart, James Robert.2015-12-312015-12-311979http://hdl.handle.net/2097/27122Call number: LD2668 .T4 1979 M35Nitrification.Rhizobium.Nitrate reductase activities of Rhizobia,the correlation between nitrate reduction and nitrogen fixation, and the nitrate effect on the nitrogen fixation activity of legume root nodulesTextMasters theses