TY JOUR TI THE WAYS TO INCREASE THE TAIGA PODSOLIC SOIL FERTILITY IN THE OB NORTH CONDITIONS KW organic and mineral fertilizers KW liming KW hydrolytic acidity KW fertility KW potato yield JO Bulletin of KSAU AU Chumak, V.A. AU Sartakov, M.P. PY 2014 IS PB Krasnoyarsk State Agrarian University