00596naa#a2200169#i#450# EN\URAL'SKIY GOSUDARSTVENNYY AGRARNYY UNIVERSITET\bibl\71549 20240825184853.7 1997-4868 20231113b2023####ek#y0engy0150####ca RU Two-cut use of perennial fodder agrocenoses in the conditions of the northern regions of Russia Journal article Ekaterinburg Ural State Agrarian University 2023 11 с. Journal article local Shamanin A. A. Popova Lyudmila Aleksandrovna usau.editorum.ru