TY JOUR TI CREEPING CLOVER (Trifolium repens L.): BIOLOGICAL FEATURES, ECONOMIC SIGNIFICANCE, VARIETIES AND METHODS OF SEED PRODUCTION WHEN GROWN IN GRASS MIXTURES WITH A CEREAL COMPONENT KW creeping clover (Trifolium repens L.) KW biological features KW grass mixtures KW seed production KW cereal grasses KW yield KW mowing KW seed harvesting JO Adaptive Fodder Production AU Trukhan, O.V. PY 2021 IS 2021 PB Federal Williams Research Center of Forage Production and Agroecology