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Aims: Aims of this study was to improve the growth of Maize (Zea mays) in the Adamawa region specially characterized by Sudano-Guinean and Sudano-Sahelean Savannah area. Localization of Site Study: Study was conducted out on Jun 2021 in Bini-Dang, in order to identify suitable strains of Microorganisms Solubilizing Phosphorus (MSP) of roots and rhizosphere of Zea mays. Ten strains of Microorganisms Solubilizing Phosphorus (MSP) of roots and rhizosphere of Zea mays were sampled. Methodology: The experimental design was three blocks completely randomized with 132 plots. A total of 11 treatments were considered during the experiment. Different treatments are constituted: BN, NBB, BNB17, RBNBB5, SSL9, SDB6, RKB1, BG12, SDL4, RDB1 and Control) repeated 12 times. Parameters were: germination time, number of leaves, height of plants, diameter of stem, date of flowering and the number of cobs per plant. Results: Our results showed that Bacteria solubilizing phosphorous was significantly (P |