The salinization is degrading Brazilian semi-arid soils, which need to be reclaimed for agricultural utilization. This work aimed to evaluate use of organic and chemical amendments in a Fluvic Entisol having saline-sodic properties in Pernambuco's semi-arid region. Soil experiment was conducted in soil columns, with 10 treatments: sheep manure, cow manure, gypsum, synthetic polymer in six concentrations and the control, in randomized block design. The columns were submitted to leaching during 70 days, being analyzed the leachates collected at 7 and 70 days and the soil after leaching. In leachates, the pH, EC and concentration of Na+, K+ and Cl- were determined; in the saturation extract, pH and EC were measured, and Na+ concentration in saturation extract, and exchangeable Na+ and cation exchange capacity (CEC) were determined to calculate exchangeable sodium percentage (ESP). Soil physico-hydric variables were also determined. The data obtained were submitted to variance analysis and to Scott Knott test at 0,05 level of probability. The treatments, especially manures, gypsum and polymer at smaller concentration decreased EC, ESP and soluble Na+, increasing hydraulic conductivity of the soil.
saline soils; sodic soils; amendments
