15N Abundance in N-Fixing and Non-N-Fixing Plants

The Acetylene-Ethylene Assay for N₂ Fixation: Laboratory and Field Evaluation

1968 • 2,209 citations

Nitrogen isotope fractionation in soils and microbial reactions

1970 • 529 citations

Natural abundance of 15N in particulate organic matter in the North Pacific Ocean

1976 • 257 citations

The Isotope Effect in the Fixation of Nitrogen by Azotobacter

1960 • 233 citations

NATURAL NITROGEN-15 ABUNDANCE OF SOIL AND PLANT SAMPLES

1976 • 119 citations

THE PRECISION OF DETERMINATIONS OF THE NATURAL ABUNDANCE OF NITROGEN-15 IN SOILS, FERTILIZERS, AND SHELF CHEMICALS

1974 • 118 citations

Environmental Implications of N Fixation by Soybeans

1975 • 66 citations

Variation in the Natural Nitrogen‐15 Abundance in Nitrate Mineralized During Incubation of Several Illinois Soils

1974 • 59 citations

Seasonal Development of, and the Effect of Inter‐plant Competition on, Soybean Nodules¹

1975 • 12 citations

Symbiotic Associations. 13th Symposium of the Society for General Microbiology

1964 • 6 citations