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Experimental data from the Tien Shan complex array on different components ofextensive air showers at 0.5-10 PeV primary cosmic rays are compared withresults of various calculated models of cosmic rays interactions at theatmosphere. Conclusion is made about the growth with energy of the inelasticproton-air cross section {\sigma}p-air from 0.2 TeV (accelerator experimentswith fixed targets) to 10 PeV (cosmic rays). The analysis showed that the riseconforms to (7-9)% per one order of energy. That corresponds to {\sigma}p-air(1 PeV) = 350 mb. These data correspond better to the new QGSJET-II-04 versionof the interaction model based on the recent LHC results. This model predictsbetter the slower rise of the cross section than previous versions of QGSJET-IIand some other models.

Inelastic proton-air cross section at 0.2 TeV-10 PeV