Field experiments were carried out on maize (Zea mays L.) during kharif 2016 to investigate the response of integrated plant nutrient supply under soil test crop response based fertilizer recommendation by following Ramamoorthy's inductive approach of fertility gradients in Inceptisols of Raigarh, Chhattisgarh plains. The fertilizer adjustment equations were derived by the All India Coordinated Research Project (AICRP), College of Agriculture, Indira Gandhi Krishi Vishwavidyalaya, Raipur (C.G.). The nutrient requirement (NR), contribution of nutrients from soil (CS), fertilizer (CF) and farm yard manure (CFYM) were computed using the data on soil test values, fertilizer nutrients doses, nutrient uptake and maize yield. The amount of nutrient required (NR) to produce one quintal of maize grain yield was found to be 1.59 kg N, 0.32 kg P and 1.84 kg K. The per cent contribution from fertilizer (CF) for N, P and K was estimated 41.84, 28.28 and 140.33 per cent for maize crop. The per cent contribution from soil (CS) was recorded as 22.53 for N, 52.67 for P and 26.40 for K in case of maize crop. The per cent contribution of organic source (CFYM) for N, P and K were recorded 21.76, 4.70 and 12.81 for maize crop. Based on this information, soil test based fertilizer prescription equations were developed to predict fertilizer recommendation for obtaining specific yield target of maize. Ready reckoners chart for fertilizer N, P2O5 and K2O application based on the soil test values for specific yield targets of maize were also prepared which are useful for the soil testing laboratories.