HapsohGusmawartatiPrameswari, Di Ajeng2016-08-192016-08-192016-08-19978-979-493-958-1http://repository.unri.ac.id/xmlui/handle/123456789/8624-Phosphate(P) is the essentialnutrientwhich has an important role in the process ofphotosynthesisand root development. Theavailability of this element is limited in thetropicalland. One of the alternative processestoimprove theefficiency ofphosphateavailabilityin the soil is using phosphate solventmicroorganisms. Phosphate solvent bacteria isone of the microorganismsthat has a rolein providing the P element for plants. This study aimstoobtain the phosphate solvent bacteria isolateanddetermine the potential of thebacteriain dissolvingphosphate. The result of the isolationand bacteria selection, purified by streak platemethodonPikovskaya media,obtained16 phosphate solvent bacteria isolates. The result of clear zone observationonPikovskayamedia, there are7isolatesthathavePSIindex≥2.5. Based on the result of morphology, physiology andbiochemistry observation, the selected phosphate solvent bacteria, categorized seems like to thegenus of Bacillus and Pseudomonas.en-USphosphate solvent bacteriapeat soilGiamSiak Kecil BiosphereconservatoryUR-Scientific Work Lecturer