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Characterization of Soil Amended with the By-Product of Corn Stover Fermentation

Jane M. F. Johnson^*,a, Don Reicosky^a, Brenton Sharratt^b, Michael Lindstrom^,a, Ward Voorhees^,a and Lynne Carpenter-Boggs^c

^a USDA-ARS, 803 Iowa Ave., Morris, MN 56267
^b USDA-ARS, 213 Smith Hall, WSU, Pullman, WA 99164-6120
^c Dep. of Plant Pathology, P.O. Box 646430, Washington State University, Pullman, WA 99164-6430

View larger version (29K): [in a new window]   Fig. 1. Average soil column temperature and volumetric soil water during experiment. The soil had a bulk density of 1.3 Mg m–3, and a porosity of 0.509 m3 m–3; a volumetric soil water content of 0.306 m3 m–3 corresponds to a water-filled pore space of 0.60 m3 m–3.

View larger version (17K): [in a new window]   Fig. 2. Concentration of humic acid as a linear function of by-product concentration 123 d after amending a severely eroded soil with the by-product following corn stover fermentation.

View larger version (19K): [in a new window]   Fig. 3. Water-stable aggregates from air-dried severely eroded soil as a linear function of by-product concentration 123 d after amending a severely eroded soil with the by-product following corn stover fermentation.