The invention discloses
bacillus altitudinis SWY137 and an application thereof. The preservation number of the strain SWY137 is CCTCC NO:M 2019842, and the strain SWY137 is salt-tolerant
bacillus altitudinis. The
bacillus altitudinis can grow well in a 13% NaCl high-
salt solution, can dissolve
organic phosphorus and
inorganic phosphorus which are difficult to dissolve, and can also produce variousgrowth promoting substances of cellulases,
proteases, growth hormones and the like. Corn is taken as an example, the
growth promoting effect of the strain SWY137 on plants is obvious, the stem heightof corn seedlings can be increased by 27.67%, the
root length can be increased by 32.23%, the
fresh weight of stems can be increased by 51.33%, the
fresh weight of roots can be increased by 60.67%, the
dry weight of the stems can be increased by 33.33%, and the
dry weight of the roots can be increased by 34.88%; and besides, the effects of the strain SWY137 for promoting growth and increasing yield are not influenced by application of chemical fertilizers, and the strain SWY137 has important significance in saving
phosphate fertilizer resources, enabling food grains to be subjected to continuous yield increase and protecting
ecological environment of farmlands for agricultural production of China.