Ekrem Ozlu, WI, North Carolina State University, Plymouth, NC, US, Sandeep Kumar, Rm 248C NPB, Box 2140C, South Dakota State University, Brookings, SD, Francisco J. Arriaga, Department of Soil Science, University of Wisconsin-Madison, Madison, WI, US, Abdullah Hoseyin Alhameid, Plant science, South Dakota State University, Brookings, SD, Nigel Hoilett, Agricultural Sciences, Northwest Missouri State University, Maryville, MO and Saroop Singh Sandhu, Agronomy, University of Florida, Belle Glade, FL