TY JOUR TI DESIGN OF TECHNOLOGICAL PROCESS SEED-SOWING DEVICE OF GRAIN DRILL KW grain seeder KW seed-sowing device KW quality indicators of sowing machines work KW model of functioning KW technological process JO Bulletin of KSAU AU Brichagina, A.A. AU Ilyin, S.N. AU Palvinsky, V.V. PY 2016 IS PB Krasnoyarsk State Agrarian University