TY JOUR TI Calculation of work process effectiveness factors of plot-maker for plot-deepening formation around stumps KW plot-maker KW work process KW plot-deepening KW stump KW soil KW clearing completeness KW clearing force KW power. JO Actual directions of scientific researches of the XXI century: theory and practice AU Pozdnyakov, E.. PY 2015 IS 3 PB FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov