Andrew N French¹, Charles Anthony Sanchez², Mazin Saber², Juan Gonzalez³ and Douglas Hunsaker⁴, (1)USDA Beltsville Agricultural Research Center, Beltsville, MD, United States, (2)University of Arizona, Tucson, AZ, United States, (3)University of Arizona, Soil, Water, and Environmental Science, Tucson, AZ, United States, (4)US Department of Agriculture, U.S. ALARC Maricopa, AZ, Beltsville, MD, United States