A field experiment was conducted during the year 2017-18 at Post Graduate Institute Farm, Mahatma Phule Krishi Vidyapeeth, Rahuri. The experiment was laid out in Randomised block design with three replication and eleven treatments. The treatments comprised of T1: Absolute control, T2: only ZnSB, T3: GRDF(25:50 kg ha-1 N:P2O5 + FYM @ 5 t ha-1 ), T4 to T7 were GRDF + 100%, 75%, 50% and 25% RD of Zn through ZnSO4+ ZnSB and T8 to T11 were GRDF + 100 %, 75%, 50% and 25% RD of Zn through ZnO + ZnSB. The biofertilizer zinc solubilizing bacteria was given as a seed treatment as well as soil drenching @ 5% at 30 days of sowing. The soil pH, EC, organic carbon and calcium carbonate content in soil at initial as well as at harvest did not find any differences amongst treatments. | Potential of plant growth promoting bacteria on nutrient availability in soil, nutrient uptake and yield of summer groundnut grown on Entisol