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A condensed review is presented of the more recent developments in evaluating the salinity and sodicity of water for utilisation in irrigation. Several developments have resulted in water of a higher salinity than previously now being considered suitable for irrigation. The realisation that rain-drop action can result in the formation of surface crusts of low permeability, even at exchangeable sodium percentages lower than that previously considered problematic, point to the possible need fordoi:10.4102/satnt.v4i4.1052 fatcat:g7h63kpnhfh4bo377levw27k5y