1. Assistant Professor, Dept. of Biosystems and Agricultural Engineering, Oklahoma State Univ., Stillwater, OK 74078 (corresponding author).
2. Director of Research, Robert B. Daugherty Water for Food Global Institute, Univ. of Nebraska, Lincoln, NE 68508.
3. Retired, U.S. Bureau of Reclamation, Denver, CO.
4. Associate Director of Research—Land Grant Program, Central State Univ., Wilberforce, OH 45384.
5. Associate Professor, Dept. of Earth and Environmental Sciences, Wright State Univ., Dayton, OH 45435.