Amelioration of a calcareous saline‐sodic soil by gypsum and forage plants

Abstract A field experiment was carried out at the University of Agriculture, Faisalabad (Pakistan) during 1988–90 to evaluate the comparative efficiency of chemical and biological methods for the reclamation of a calcareous saline‐sodic soil (pHs pHs = pH of saturated soil paste = 8.2–8.6; ECe ECe = Electrical conductivity of the saturation extract = 7.4–9.0 dS m −1 ; SAR SAR = Sodium adsorption ratio = 55.6–73.0 for upper 30 cm …