The invention discloses a salt-tolerant 
bacteria T5S2 and applications in microbial 
fertilizer. A new specie salt-tolerant 
bacteria T5S2 can be separated from 
rhizosphere soil of Kalidium gracile in Sinkiang Junggar basin salt and alkali region, the salt-tolerant 
bacteria T5S2 can tolerate 1-15% NaCl, can grow well at 30 DEG C-37 DEG C, and can produce 
ACC deaminase and IAA indoleacetic acid without induction during growth, a microbial 
fertilizer prepared by utilizing the bacteria is applied to commercial crops of 
saline-alkaline land cotton, corns and the like, so that the 
germination rate of the 
saline-alkaline land cotton can achieve 77.8%, the 
survival rate can achieve 65.4%, the 
plant height, 
plant number and single boll 
plant number are obviously higher than cotton normally treated, the 
seedling rate of the 
saline-alkaline land corns can be increased to more than 80% from 64.5%, the production quantity of corn per mu is up to 600kg / mu, the total content of salt in soil of 0-30cm soil layer is reduced by 60-70%, and the microbial 
fertilizer has obvious 
salt reduction and production increase functions, thus having wide application values.