Response of rice to the selected combinations of four levels of N, P, K and three levels of FYM with simultaneous variations in initially available soil forms of these three nutrients were studied under soil test crop response calibration in aquic hapludoll. Grain and straw yield and soil analysis data were utilized to formulate the prescription equations for fertilizer doses under integrated nutrient management system with varying yield targets at different fertility levels. Besides, follow up trials were conducted to test the validity of these equations. Results of these trials clearly indicate the superiority of yield target approach over other approaches.