%0 Journal Article %T NITROGEN DYNAMICS AND WHEAT PROTEIN PRODUCTIVITY FORMATION WITH VARIOUS AGRO-TECHNOLOGIES %A Bakaeva, N.P. %A Saltykova, O.L. %A Tsarevskaya, V.M. %K wheat, precursor, tillage, soil, fertilizers, yield, nitrogen, protein, nitrate %J Bulletin Samara State Agricultural Academy %D 2018 %N 3 %P 6 %I Samara State Agricultural Academy