Water soluble organic C (Cw) was estimated in a 1:20 ratio of compost–water suspension by chromic acid wet digestion method (Walkley and Black, 1934). The organic N (Norg) was calculated as the difference between total N and inorganic-N (sum of NHþ4—Nand NO 3 —N). The CEC was determined with BaCl2–Triethanolamine method of Lax et al. (1986). Humic acid and fulvic acid were