Abstract
An experiment was conducted at University of Agriculture, Faisalabad to evaluate the effect of brackish water on chemical properties of silty clay loam soil [Bhalwal series, pH, 7.70, EC, = 3.20 dS m"' and SAR = 3.70 (mmol E1) 112} Forty disturbed and undisturbed soil columns (20 in each case, 76-cm long and 30-cm diameter) were used. The synthetic brackish waters having different EC (0.64, 2.0, 4.0, 6,0 and 7.35 dS trel), SAR 0.95, 9.65, 18.0, 26.35 and 32.0 (mmol ) 112.1 and RSC (0.64, 2.0, 4.0, 6.0 and 7.35 mmol, E1) were applied to these soil columns for three years. Synthetic brackish waters were prepared by dissolving the required amount of salts (Nan, Na2504, NaHCO3, CaCl2.61120, ilgSO4.71120 and NH,J1CO3) in canalldisdlied water. Soil samples were obtained from these soil columns for various chemical determinations after three years. The Central Composite Rotatable Second Order Incomplete Factorial design with three variables each at five levels was followed to analyze the data.. An increase in EC„„, SARA, and RSC of irrigation water increased the EC, of the disturbed and undisturbed soil. The correlation found for EC,„, SARA, and RSC with the EC, of the soil were highly significant in both soils. Soil pH, and MR were not affected by ECG in both disturbed and undisturbed soils. The SAR, and RSC significantly increased soil pH, and SAR in both soil types. The CaCO3 contents were increased by all the water parameters but effect of EC, „ was non-significant in both soils. The SARo and RSC significantly increased CaCO3 content in each soil type. All interactions between these parameters were non-significant for soil pi I T, SAR and CaCO2.
Ghulam Sarwar, Nazir Hussain, Fakhar Mujeeb, Muhammad Abid , Anwar-ul-Hassan. (2003) Correlation op brackish water and chemical properties of silty clay loam soil, The Journal Soil & Environment , Volume 22, Issue 1.
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