TY JOUR TI THE QUALITY OF THE MAIN SOIL TILLAGE IN NORTHERN FOREST STEPPE OF TYUMEN REGION KW main processing of the soil KW pro-cessing quality KW uniformity of plowing KW cob KW the de-gree of stubble safety JO Bulletin of KSAU AU Rzaeva, V.V. PY 2017 IS PB Krasnoyarsk State Agrarian University