1. Department of Ecological Sciences, The James Hutton Institute
2. Plant and Crop Sciences Division, School of Biosciences, University of Nottingham, Sutton Bonington Campus
3. Department of Crop Science, School of Agriculture, College of Agriculture and Natural Sciences, University of Cape Coast
4. Department of Soil Science, School of Agriculture, College of Agriculture and Natural Sciences, University of Cape Coast
5. Distinguished Scientist Fellowship Program, King Saud University