TY JOUR TI MAIN PARAMETERS OF TRACTOR K-424 (KIRYUSHA) WORK IN THE COMPOSITION OF THE APERRY UNIT IN THE CONDITIONS OF ADAPTIVE LANDSCAPE AGRICULTURE KW soil hardness KW functioning model of machine-tractor unit KW potential performance characteristic KW productivity KW specific energy consumption. JO Vestnik of Kazan State Agrarian University AU Mardar'ev, S.N. AU Akimov, A.P. AU Medvedev, V.I. AU Zaycev, P.V. AU Kazakov, Y.F. AU Yunusov , G.. AU Larkin, S.V. PY 2018 IS 13 PB Kazan state agrarian University