%0 Journal Article %T Analysis of the effectiveness of hitch tractor unitized them with disc tools %A Posmetev, V.. %A Latysheva, M.. %K hitch, tractor, disc tools, calculation %J Actual directions of scientific researches of the XXI century: theory and practice %D 2015 %N 3 %P 4 %I FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov