For citations:
Repka D.A., Beltyukov L.P., Kuvshinova Е.К., Potapov E.A. The efficiency of biological products’ use for winter wheat varieties in the Rostov region. Grain Economy of Russia. 2020;(1):72-76. (In Russ.) https://doi.org/10.31367/2079-8725-2020-67-1-72-76