For citations:
Ovsyannikova G.V., Metlina G.V., Vasilchenko S.A. Comparative bioenergy estimation of field crop rotations using perennial and annual grasses in the Rostov region. Grain Economy of Russia. 2019;(6):23-27. (In Russ.) https://doi.org/10.31367/2079-8725-2019-66-6-23-27