**Author details**

Phesheya Dlamini1\* and Vincent Chaplot2

\*Address all correspondence to: dlaminiPE@ufs.ac.za

1 Department of Soil, Crop and Climate Sciences, University of the Free State, Bloemfontein, South Africa

2 IRD-LOCEAN c/o School of Agricultural, Earth & Environmental Sciences, Centre for Water Resources Research, University of KwaZulu-Natal, Scottsville, South Africa
