TY JOUR TI ALGORITHM FOR ASSESSING THE NUTRITION ELEMENTS (N, P, K) PARTICIPATION IN THE INCREASED POTATO YIELD FORMATION UNDER THE NORTHERN KAZAKHSTAN STEPPE CONDITIONS KW potatoes KW mineral nutrition KW regression equations KW relationship KW variables KW fertilizers KW coefficients JO Bulletin of KSAU AU Abeuov, S.K. AU Kamkin, V.A. AU Shoykin, O.D. AU Malickaya, N.V. PY 2022 IS 0 PB Krasnoyarsk State Agrarian University