The use of the ¹⁵N isotope dilution technique to estimate the contribution of associated biological nitrogen fixation to the nitrogen nutrition of Paspalum notatum cv. batatais

Influence of Inorganic Nitrogen on Nitrogen Fixation by Legumes as Revealed by N15¹

1958 • 263 citations

Nitrogenase Activity and Oxygen Sensitivity of the Paspalum notatum-Azotobacter paspali Association

1972 • 245 citations

Confirmation of nitrogen fixation in two tropical grasses by 15N2 incorporation

1977 • 111 citations

Comparison and evaluation of methods for including nitrate in the total nitrogen determination of soils

1972 • 62 citations

Nitrogen fixation by nodulated soybean under tropical field conditions estimated by the 15N isotope dilution technique

1984 • 61 citations

Field measurements of symbiotic nitrogen fixation in an established pasture using acetylene reduction and a 15N method

1978 • 39 citations

Factors affecting nitrogenase activity (C₂H₂ reduction) associated with sorghum and millet estimated using the soil core assay

1983 • 27 citations

Nitrogenase activity associated with three tropical grasses growing in undisturbed soil cores

1980 • 26 citations

Methodology for nitrogen transformation and balance in soil

1981 • 24 citations