¹⁵N Abundance of Nodules as an Indicator of N Metabolism in N₂-Fixing Plants

A Simple Assembly for Use in the Testing of Cultures of Rhizobia

1943 • 161 citations

Isotopic Fractionation Associated With Symbiotic N₂ Fixation and Uptake of NO₃⁻ by Plants

1980 • 158 citations

4-Methyleneglutamine in Peanut Plants: Dynamics of Formation, Levels, and Turnover in Relation to Other Free Amino Acids

1981 • 23 citations