1. Senior Engineer, Dept. of Agricultural and Biological Engineering, Southwest Florida Research and Education Center, Univ. of Florida, 2686 State Rd. 29 N., Immokalee, FL 34142.
2. Associate Professor, Dept. of Agricultural and Biological Engineering, Southwest Florida Research and Education Center, Univ. of Florida, 2686 State Rd. 29 N., Immokalee, FL 34142 (corresponding author).
3. Professor, Dept. of Soil and Water Sciences, Univ. of Florida, Gainesville, FL 32611.