Contributions of shoot and root nitrogen-15 labeled legume nitrogen sources to a sequence of three cereal crops - Glasener, KM; Wagger, MG; MacKown, CT; Volk, RJ (SOIL SCIENCE SOCIETY OF AMERICA JOURNAL, 2002)

Nitrogen-15 recovery in soil incubated with potassium nitrate and clover residues - Muriuki, AW; King, LD; Volk, RJ (SOIL SCIENCE SOCIETY OF AMERICA JOURNAL, 2001)

Nitrogen-15 labeling effectiveness of two tropical legumes - Glasener, KM; Wagger, MG; MacKown, CT; Volk, RJ (PLANT AND SOIL, 1998)
Keywords: Desmodium ovalifolium; N balance; 15N methodology; N mineralization; Pueraria phaseoloides

Source and magnitude of ammonium generation in maize roots - Feng, JN; Volk, RJ; Jackson, WA (PLANT PHYSIOLOGY, 1998)

Tracing nitrogen movement in corn production systems in the North Carolina Piedmont: A nitrogen-15 study - Crozier, CR; King, LD; Volk, RJ (AGRONOMY JOURNAL, 1998)

Unidirectional fluxes of nitrate into and out of maize roots: measurement and regulation by prior nitrate nutrition - Volk, R. J. (Plant Science, 1997)

Beneficial effects of concurrent ammonium and nitrate nutrition on the growth of Phaseolus vulgaris: A 15N study - Volk, R.; Chaillou, S.; Mariotti, A.; Morot-Gaudry, J. F. (Plant Physiology and Biochemistry, 1992)

REDUCTION OF PLANT-TISSUE NITRATE TO NITRIC-OXIDE FOR MASS-SPECTROMETRIC N-15 ANALYSIS - VOLK, RJ; PEARSON, CJ; JACKSON, WA (ANALYTICAL BIOCHEMISTRY, 1979)

Photorespira-tory phenomena in maize: Oxygen uptake, isotope discrimination and carbon dioxide efflux - Volk, R. J.; Jackson, W. A. (Plant Physiology, 1972)