DavidE.Clay, PhD, is a Distinguished Professor of Soil Science and South Dakota Corn Council Endowed Chair of Precision Farming at South Dakota State University. SkyeBrugler, MS, is a Research Associate in Agronomy, Horticulture, and Plant Science at South Dakota State University. KatsutoshiMizuta, PhD, is an Assistant Professor of Computational Agricultural and Environmental Sciences at The University of Kentucky.