Gray Myles¹, Markus Kleber², Maria Ines Dragila³, Mark Johnson⁴ and Bridget Guildner³, (1)Crop and Soil Science, Oregon State Universiry, Corvallis, OR, (2)Dept. Crop and Soil Science, Oregon State University, Corvallis, OR, (3)Oregon State University, Corvallis, OR, (4)National Health and Environmental Effects, U.S. Environmental Protection Agency, Corvallis, OR