TY JOUR TI IMPROVING ENERGY EFFICIENCY OF SOIL TREATMENT USING TRACTION DRIVEN TILLAGE IMPLEMENT KW surface tillage KW traction drive KW tillage implement KW efficiency of use KW tillage KW energy saving JO Bulletin Samara State Agricultural Academy AU Mashkov, S.V. AU Petrov, M.A. AU Shakhov, V.A. AU Ishkin, P.A. PY 2021 IS 6 PB Samara State Agrarian University