%0 Journal Article %T Features of calculation of the productivity of motoaggregates in forest nurseries %A Ovsyannikov, S.. %K walking tractor, productivity, operator, charges of energy of man. %J Actual directions of scientific researches of the XXI century: theory and practice %D 2015 %N 3 %P 7 %I FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov