D. W. Nelson

Determination of Total Phosphorus in Soils: A Rapid Perchloric Acid Digestion Procedure1

L. Sommers, D. W. Nelson, 1972 .

Determination of ammonium in KCl extracts of soils by the salicylate method

D. W. Nelson, 1983 .

Erodibility of Selected Clay Subsoils in Relation to Physical and Chemical Properties 1

M. Römkens, C. B. Roth, D. W. Nelson, 1977 .

Decomposition of Microbial Cells and Components in Soil and Their Stabilization Through Complexing with Model Humic Acid-Type Phenolic Polymers1

D. W. Nelson, J. Ervin, J. Martín, 1979 .

Evaluation of manual cadmium reduction methods for determination of nitrate in potassium chloride extracts of soils

D. W. Nelson, R. A. Dorich, 1984 .

Direct Colorimetric Measurement of Ammonium in Potassium Chloride Extracts of Soils

D. W. Nelson, R. A. Dorich, 1983 .