%0 Journal Article %T BIOSTIMULATOR MADE OF WASTE OF KERATIN-CONTAINING RAW MATERIALS %A Bryndina, L.V. %K biostimulants, keratin-containing raw materials, enzymatic hydrolysis, organic waste, amino acids %J Forestry Engineering Journal %D 2020 %N 10 %P 8 %I FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov