Eric Russell, Washington State University, Laboratory for Atmospheric Research, Pullman, WA, United States, Patrick O'Keeffe, Washington State University, Pullman, WA, United States, David Huggins, USDA-ARS Plains Area, Northwest Sustainable Agroecosystems Research, Pullman, WA, United States and Ian Leslie, USDA-ARS Plains Area, Northwest Sustainable Agroecosystems Research, Pullman, United States