%0 Journal Article %T STEADINESS OF POPLAR TO PRUNING IN THE CONDITIONS OF THE CITY OF ARKHANGELSK %A Tyukavina, O.N. %K poplar, pruning, tree state, crown pruning height, methods of pruning crown tree %J Bulletin of KSAU %D 2018 %N %P 4 %I Krasnoyarsk State Agrarian University