%0 Journal Article %T CROP YIELDS IN REFERENCE AREAS OF THE FOREST-STEPPE ZONE OF THE OMSK IRTYSH REGION %A BOBRENKO, E.G. %A SHMIDT, A.G. %K yield, maintenance, removal, production, composition, soil %J Vestnik of Omsk SAU %D 2025 %N 59 %P 7 %I FSBEI HE Omsk SAU