Improving soil fertility and peanut yield is the primary objective of this study. Therefore, the use of symbiotic nitrogen-fixing bacteria combined with lime and vermicompost is being implemented. Aim: The study Purpose was to evaluate effects of lime, vermicompost (VT) addition combined with Enterobacter asburiae strain cjy141 (EA cjy141) inoculation on the yield and quality of Peanut in the AGU, Giang province during both crops of 2023. Research design: The field experiment laid out in Randomized Complete Block Design, four treatments and four replications. Treatments of crop 1: The control treatment (NT1) only applied NPK (20 kgUrea + 60 kgP₂O₅ + 60kg KCl per ha); (NT2): Co-application of N, P, K + 500 kg CaCO₃ ha^-1 and EA cjy141 inoculation (10⁸CFU g^-1); (NT3): NPK + CM (10 t ha^-1) and EA cjy141 inoculation; (NT4): Incorporation of NPK + VT (10 t ha^-1) + 500 kg CaCO₃ ha^-1 and EA cjy141 inoculation. Treatments of crop 2 were carried on the prior experiment (crop 1). However, this treatments did not apply to VT, lime and no EA cjy141 inoculation (only applying NPK). Results: The EA cjy141 inoculation significantly enhanced the growth and yield parameters of peanut cultivars. However, the maximum plant Biomass (168 g plant^-1), number of nodule (92.1 plant^-1), fresh and dry weight of fill pods (61.4 and 37.6 g plant^-1, respectively), fresh and dry weight of empty pods (2.07 and 1.19 g plant^-1), weight of dry nodules (0.83 g plant^-1), yield (6.12 t ha^-1), protein and oil in seeds (26.1 and 50.1 %, respectively) was observed in cow manure and lime applied with rhizobium inoculated treatments. Conclusion: All the parameters of growth and yield showing best result for application of lime and cow manure with synthetic EA cjy141 inoculation of seeds. Vermicompost has significantly increased the yield of peanut in the next crops.

Key words: Peanut,  vermicompost, lime, Enterobacter asburiae strain cjy141.