TY JOUR TI OPTIMIZATION OF DESIGN AND PROCESS PARAMETERS OF THE PEG-WHEEL FEED KW seeder KW apparatus KW coil KW seeding KW unevenness KW optimization KW steam meter JO Bulletin Samara State Agricultural Academy AU Syrkin, V.A. AU Mashkov, S.V. AU Ishkin, P.A. AU Vasilev, S.I. PY 2021 IS 6 PB Samara State Agrarian University