TY JOUR TI AGROPHYSICAL PROPERTIES AND YIELD CORN DEPENDING ON THE MAIN PROCESSING OF THE SOIL IN THE NORTHERN FOREST-STEPPE OF THE TYUMEN REGION KW JO Agrarian Bulletin of the AU Miller, E.I. AU Rzaeva, V.V. AU Miller, S.S. PY 2018 IS 176 PB Ural State Agrarian University