For citations:

Petruk V.A. PRODUCTIVITY OF PERENNIAL GRASSES AND MIXTURES WITH DIFFERENT SOWING DATES IN WESTERN SIBERIA. Bulletin of NSAU (Novosibirsk State Agrarian University). 2020;(1):24-32. (In Russ.) https://doi.org/10.31677/2072-6724-2020-54-1-24-32