Mustafa Tufekcioglu, Iowa State University;
Thomas M. Isenhart, Iowa State University;
James R. Russell, Iowa State University;
John L. Kovar, USDA-ARS National Soil Tilth Laboratory;
Richard C. Schultz, Iowa State University
Girish Panicker, Alcorn State Univ.;
Sixto A. Marquez, Lousiana Tech University;
Om Vadhwa, Alcorn State University;
Patrick Igbokwe, Alcorn State University