Correlation of Alfalfa Yield with Various Index of Salinlly

ABSTRACT Lysimeter alfalfa yield response to nonuniform soil salinity was related to: D irrigation water salinities, 2) average profile soil salinities. 3) soil water salinities weighted on the basis of water uptake by the crop at the appropriate root-zone depth, and 4) in situ soil water salinities integrated over time. Alfalfa yield correlated best with no. 4. For most field situations, average profile soil salinity would be a useful approximate index of salinity for relating alfalfa yield response under conditions of flood irrigation management.