%0 Journal Article %T The content of biologically active substances in the green biomass of perennial onions (Allium L.) %A Kukushkina, T.A. %A Fomina, T.I. %K Allium, perennial onions, biologically active substances, green biomass, flowering %J Agrarian Bulletin of the %D 2021 %N 207 %P 7 %I Ural State Agrarian University