Rhizobium strain Bdz5-3 of broad beans and application thereof

The invention provides a rhizobium strain Bdz5-3 of broad beans and an application thereof. The bacterial strain is obtained by separation and purification of fresh broad bean root nodules, and belongs to the Rhizobium anhuiense strain of Rhizobium. The bacterial strain system is preserved in China Center for Type Culture Collection in Wuhan university at October 23th, 2017, and the preservation number is CCTCC No:M2017612. The rhizobium strain Bdz5-3 is a bacterial strain of broad bean rhizobium with good symbiotic nitrogen fixation ability, wide adaptation ranges for varieties of Sichuan broad beans, capabilities for secreting IAA, dissolving inorganic phosphorus and organic phosphorus, good stress resistance, and excellent wide spectrum. The bacterial strain has good affinity for matching with the varieties of mainly planted broad beans in Sichuan, in production of broad beans of different varieties in Sichuan, yield increase of the broad beans without application of nitrogenous fertilizers and with inocul