TY JOUR TI PECULIARITIES OF THE MICROELEMENT BACKGROUND AVAILABILITY IN THE KRASNOYARSK REGION ARABLE SOILS KW soil KW microelements KW monitoring KW availability KW background availability KW bioavailability JO Bulletin of KSAU AU Voloshin, E.I. PY 2012 IS 0 PB Krasnoyarsk State Agrarian University