TY JOUR TI CHANGES IN THE OVERALL PROJECTIVE COVERAGE IN THE PHYTOCENOSIS OF LONG-TERM HAYFIELD KW phytocenosis formation KW abundance of plants KW projective cover KW floristic composition JO Adaptive Fodder Production AU Rodionova, A.V. AU Teberdiev, D.M. PY 2022 IS 2022 PB Federal Williams Research Center of Forage Production and Agroecology