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Inelastic processes rate coefficients for low-energy Sr + H, Sr$^+$ + H$^-$,Sr$^+$ + H and Sr$^{2+}$ + H$^-$ collisions are calculated using multichannelquantum model approach. 31 scattering channels of SrH$^+$ and 17 scatteringchannels of SrH are considered. The partial cross sections and the partial ratecoefficients are hence calculated for 1202 partial processes in total. Usingnew quantum data for Sr II + H I collisions, we updated model atom of Sr II andperformed the non-local thermodynamic equilibrium (non-LTE) calculations. Weprovide the non-LTE abundance corrections for the Sr II resonance lines in twogrids of model atmospheres, which are applicable to very metal-poor ([Fe/H]$\le -2$) dwarfs and giants.

Inelastic processes in strontium-hydrogen collisions and their impact on non-LTE calculations