Moayad B. Zaied

Department of Agric. Eng., Faculty of Natural Resources and Environmental Studies, University of Kordofan, Elobied, Sudan

Ahmed M. El Naim

Department of Crop Sciences, Faculty of Natural Resources and Environmental Studies, University of Kordofan, Elobied, Sudan

Tarig E. Mahmoud

Department of Agricultural Economics and Rural Development, Faculty of Natural Resources and Environmental Studies, University of Kordofan, Elobied, Sudan