ABSTRACT
Research questions - what are the rootzone soil salinity and sodicity levels that can be induced by a long-term
(15 to 20 years) use of the different categories of Wadi Laba floods? - what is the impact, if any, of the rootzone soil salinity and sodicity on sorghum and maize
crop yields and the infiltration rates of the Wadi Laba irrigated fields? - which, if necessary, land, water and crop management practices could be put in place to
minimize salinity and sodicity problems at field level?