TY JOUR TI GEOCHEMICAL ASSESSMENT OF MACRO- AND MICROELEMENTS CONTENT IN THE SOIL–PLANT SYSTEM IN THE CONDITIONS OF THE SELENGA AIMAG IN NORTHERN MONGOLIA KW soils KW grain KW plants KW spring wheat KW trace elements KW macronutrients KW Mongolia JO Bulletin of KSAU AU Sindireva, A.V. AU Boev, V.A. AU Erdenetsogt, E.. AU Saizhaa, N.. AU Boev, V.V. AU Ieronova, V.V. PY 2025 IS 0 PB Krasnoyarsk State Agrarian University