Morgan P. Davis1, Thomas M. Isenhart2, Dan B. Jaynes3, Timothy Parkin3, Tyler A. Groh4, Michelle L Soupir5 and Kirsten Hofmockel6, (1)Agronomy, University of Missouri, Columbia, MO, US, (2)Natural Resources Ecology and Management, Iowa State University, Ames, IA, (3)Retired, USDA-ARS National Laboratory for Agriculture and the Environment, Ames, IA, (4)Natural Resources Ecology and Management, Pennsylvania State University, Port Matilda, PA, US, (5)Agricultural and Biological Engineering, Iowa State University, Ames, IA, (6)Environmental Molecular Sciences Laboratory, Department of Energy, Richland, WA