TY JOUR TI PILOT STUDIES DURING THE WORK OF THREE-CHANNEL AERO TRENCH WITH MOTION SENSOR KW triple aero trench KW motion sensor KW active aera-tion KW grain weight JO Bulletin of KSAU AU Onkhonova, L.O. AU Tsyrenov, N.E. AU Skryabina, I.Y. PY 2018 IS PB Krasnoyarsk State Agrarian University