John Snider1, John Gassett2, Daryl Chastain3, Darrin Dodds4, Wesley M. Porter1, Bobby R. Golden5, Dusty Dunn6 and William Slaton7, (1)Crop and Soil Sciences, University of Georgia, Tifton, GA, (2)Crop and Soil Sciences, University of Georgia, Griffin, GA, (3)Plant and Soil Sciences, Mississippi State University, Stoneville, MS, (4)Mississippi State University, Mississippi State, MS, (5)Plant and Soil Sciences, Delta Research and Extension Center, Stoneville, MS, (6)University of Georgia, Tifton, GA, (7)Physics and Astronomy, University of Central Arkansas, Conway, AR