Bacillus cereus with heavy metal passivating and plant growth promoting functions and application of bacillus cereus

The invention discloses bacillus cereus with heavy metal passivating and plant growth promoting functions and application of the bacillus cereus, and belongs to the technical field of microbial strains. The name of the bacillus cereus is bacillus cereus B19, and is preserved in the China General Microbiological Culture Collection Management Committee Centre of Institute of Microbiology, Chinese Academy of Sciences, 3#, No.1 Yard, West Beicheng Road, Chaoyang District, Beijing, on April 27th, 2016; the preservation number is CGMCC NO. 12405. The bacillus cereus has the functions of passivating heavy metals and promoting plant growth, is suitable for decomposing difficultly soluble phosphorus, and is used for producing auxin, resisting salt, resisting the heavy metals, promoting plant seed germination, increasing effective phosphorus and microbial carbon and nitrogen of soil, and reducing available heavy metals in the soil.