Phosphate sorption isotherms for some Marathwada soils were determined by equilibrating air dry samples for 24 hours with 0.01 M KH,PO, solution at 25 1°C. Phosphate sorption capacities of soils were evaluated by using. Langmuir and Temkin equations. Phosphate sorption mixima of Parbhani, Ambajogai. Mukhed. Vaijapur and Tuljapur were 1870, 1825. 1695. 1545 and 1620 mg p/kg soil respectively. X/Log C (another parameter to represent phosphate sorption capacity for soils) values for the same soils were 816.790, 721, 697 and 633 respectively Where X Phosphate sorbed (malka soil) and C Equilibrium phosphat: concentration (U mol/ml). Soration in calcarious soils was significantly correlated with organic carbon (r = 0.853), clay (r=0.992) and exchangeable calcium and magnesium (r=0.931) contents in the soils. P sorption index (X/Log C) was also positively correlated to the above soil properties.
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