%0 Journal Article %T SUBSTANTIATION OF THE FORM AND DETERMINATION OF THE CONSTRUCTIVE PARAMETERS OF THE ROTATION ROLLER OF SOIL %A Bulgariev, G.G. %A Pikmullin, G.V. %A Galiev, I.G. %A Sitdikov, F.F. %A Begaliev, B.S. %K rotary ripper, soil, teeth, spiral-plate working unit. %J Vestnik of Kazan State Agrarian University %D 2018 %N 13 %P 3 %I Kazan state agrarian University