A pot culture experiment was conducted to evaluate the influence of different sources of nitrogen viz., ammonium sulphate (AS), ammonium chloride (AC), urea (V), ammonium nitrate (AN) and calcium ammonium nitrate (CAN) with or without P in relation to soil-P availability, dry matter production, fibre yield and P uptake by Corchorus olitorius and Corchorus capsularis species of jute. Ammonium sulphate in association with applied P significantly increased the yield of jute. Highest P uptake was obtained by AS in conjunction with applied P. Performance of fibre yield and P uptake was in the order of AS > AC > U > AN > CAN. Interaction effects of N sources and applied P were found to be significant. Soil-P fractions such as Al-P and Fe-P were found significantly and positively correlated with fibre yield and P uptake. Therefore, in terms of yield and P uptake performance of ammonium sulphate appeared to be more suitable nitrogen fertilizer source as compared to other sources with or without phosphatic fertilizer.