%0 Journal Article %T THE USE OF SAPONITE-CONTAINING MATERIALS AS MINERAL FERTILIZERS AT THE CULTIVATION OF POTATOES IN ARKHANGELSK REGION %A Nakvasina, E.N. %A Romanov, E.M. %A Shabanova, E.N. %A Kosareva, E.N. %A Kononov, O.D. %K saponite-containing materials, soil, crop, potatoes %J Bulletin of KSAU %D 2019 %N %P 8 %I Krasnoyarsk State Agrarian University