Urease-producing bacteria and application thereof in preparation of strain agent for preventing and treating tobacco root-knot nematode disease

The invention discloses urease-producing bacteria and application thereof in preparation of a strain agent for preventing and treating tobacco root-knot nematode diseases, and belongs to the technicalfield of microbial fertilizers and microbial pesticides. The invention relates to urease-producing bacteria. The urease-producing bacteria are urease-producing bacteria. The preservation name of thestrain is the strain Asticacaulis tiandonensis 3.1105, and the strain is preserved in China Center for Type Culture Collection (CCTCC), and the preservation address is Wuhan University, Wuhan, China.The preservation date is June 22, 2020; the preservation number of the strain is CCTCC No: M 2020232. Urease generated by the 3.1105 strain is used for catalyzing urea to generate ammonia gas to killnematodes, the strain agent prepared from the 3.1105 strain and urea can efficiently prevent and treat tobacco root-knot nematode diseases, and the strain agent has the advantages of being low in usecost, high in prevention effe