1. African Sustainable Agriculture Research Institute (ASARI), Mohammed VI Polytechnic University (UM6P), Laâyoune, Morocco
2. Agricultural Science Center, New Mexico State University, Clovis, NM, USA
3. Oklahoma Department of Mines, State of Oklahoma, Oklahoma City, OK, USA
4. Department of Soil and Crop Sciences, Colorado State University, Fort Collins, CO, USA
5. Department of Plant and Soil Science, Texas Tech University, Lubbock, TX, USA
6. Agricultural Research Center-Hays, Kansas State University, Hays, KS, USA