Comparative Evaluation of Methods for Estimation of Soil Salinity

Different methods to estimate electrical conductivity (EC) of saturated soil paste extract (ECe) 1:2 and 1:5 soil: water suspensions were evaluated. Soil samples taken from different depths (viz. 0-15, 15-30, 30-45, 45-60, 60-90 cm) the wheat field under irrigated saline regimes ranging 1.5 12 dSm-1. The relationship between soil-water suspension extracts (i.e., EC1:2 EC1:5) was established beside development regression models conversion factors. Regression relating ECe with EC1:2, EC1:5 developed coefficients determination (R2) 0.98 0.99 respectively. average factor ECe~ 2.7 7.7, Methods standardized in study can be used EC ratios, which will less cumbersome significantly reduce estimation time.