TY JOUR TI RESULTS OF INVESTIGATION OF COMPACTION OF HOPS INTERMEDIARY BY MOTORS OF TRACTORS KW propulsor KW soil compaction KW density KW hops KW shear deformation of soil. JO Vestnik of Kazan State Agrarian University AU Smirnov, P.A. AU Pushkarenko, N.N. AU Akimov, A.P. AU Vasil'ev, A.O. AU Andreev, R.V. AU Yunusov , G.. AU Kazakov, Y.F. PY 2018 IS 13 PB Kazan state agrarian University