TY JOUR TI Study of elements of spring camelina technology in the forest-steppe of the Central Chernozem region KW spring ginger KW varieties KW Omich KW Ekaterininskiy KW Yubilyar KW yield KW oil content KW crude protein KW oil productivity KW vegetation period JO Agrarian Bulletin of the AU Gulidova, V.A. PY 2021 IS 205 PB Ural State Agrarian University