%0 Journal Article %T Productivity of varieties of narrow-leaves lupine in the conditions of the Middle Urals %A Chulkova, V.V. %A Vyatkina, G.V. %A Chulkov, V.A. %A Pavlenkova, T.V. %K leguminous crop, varieties, narrow-leaved lupin, protein, plant development, crop structure, grain yield %J Agrarian Bulletin of the %D 2023 %N 229 %P 11 %I Ural State Agrarian University