Daniel Olk

USDA-ARS National Laboratory for Agriculture and the Environment
USDA-ARS National Laboratory for Agriculture and t
2110 University Boulevard
Ames, IA
USA 50011-3120
Email: dan.olk@ars.usda.gov

Papers:
96-5 Amino Acid Composition of a Manure-Amended Soil: Rhizospheric and Non-Rhizospheric Differences In a Greenhouse Ryegrass Study.
312-6 Seasonal Shifts in the Biochemical Compoments of the Light Fraction, Particulate Organic Matter, and Two Humic Acid Fractions in An Iowa Soil.