For citations:

Ulrikh E.V., Podashev D.B., Frolova N.A., Kachanova A.V. Physicochemical properties of lupine growing in the Kaliningrad region. Bulletin of NSAU (Novosibirsk State Agrarian University). 2025;(4):120-128. (In Russ.) https://doi.org/10.31677/2072-6724-2025-77-4-120-128