TY JOUR TI Comparative performance assessment seedling method for the introduction of Nigella damascena L. in the Middle Urals KW Nigella damascena KW efficiency of seedling method KW phenological phases KW productivity. JO Agrarian Bulletin of the AU Abramchuk, A.V. AU Karpuhin, M.Y. AU Saparklycheva, S.E. AU Chulkova, V.V. PY 2020 IS 197 PB Ural State Agrarian University