Nichola M. Knox¹, Greg Bruland², Sabine Grunwald¹, David B. Myers³, Meryl McDowell⁴, Aja Stoppe¹ and Nicholas Comerford¹, (1)Soil and Water Science Department, University of Florida, Gainesville, FL, (2)Sherman 101, University of Hawaii, Honolulu, HI, (3)Cropping Systems and Water Quality Unit, USDA-ARS, Columbia, MO, (4)University of Hawaii, Honolulu, HI