Management practices can have significant implications for both soil quality and soil fertility. The observation on different pools of nitrogen in rhizosphere and non-rhizosphere in the long term are limited. Here we present the results on different pools of nitrogen in soil from long term integrated nutrient management practices under finger millet – groundnut cropping system, that has been in operation for more than 42 years. Organic manures - farmyard manure, maize residue and mineral fertilizers had been applied repeatedly for 42 years with finger millet – finger millet mono-cropping and finger millet- groundnut cropping system. The results indicated that all the nitrogen fractions were found to be higher in non-rhizosphere soil except total nitrogen and ammonical nitrogen fractions. The combined application of FYM @ 10 t ha ^-1 and mineral fertilizer 100% RDF in finger millet – groundnut cropping system recorded significantly higher total nitrogen (R-969.20 mg kg ^-1; NR-956.93 mg kg ^-1), nitrate nitrogen (R-84.00 mg kg ^-1; NR-85.40 mg kg ^-1), Ammonical N (R-109.20 mg kg ^-1; NR-106.30 mg kg ^-1) and organic nitrogen fractions in both rhizosphere and non-rhizosphere soil. The total nitrogen was found to be significantly and positively correlated with organic carbon (r = 0.718**, r = 0.831**), available nitrogen (r = 0.912**, r = 0.915**), MBN (r = 0.912**, r = 0.914**) and urease (r = 0.809**, r = 0.820**) in case of both rhizosphere and non-rhizosphere soil. All the nitrogen fractions were significantly and positively correlated with each other indicating the existence of dynamic equilibrium.