TY CONF TI INFLUENCE OF GRAIN STRAW ON THE CONTENT OF ZINC AND COPPER IN LEACHED CHERNOZEMS OF THE RAMON DISTRICT OF THE VORONEZH REGION KW leached chernozems KW cereal straw KW cellulosolytic micromycete KW heavy metals KW trace elements zinc KW copper JO Reproduction, monitoring and protection of natural, natural-anthropogenic and anthropogenic landscapes AU Gorbunova, N.S. AU Gromovik, A.I. AU Zaharova, E.M. AU Safonova, A.A. AU Davydova, D.A. PY 2022 PB FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov