1-st All-Russian Agricultural Congress in activity and creative heritage of B.K.Yenken

The article covers a separate stage in the scientific biography of Boris Karlovich Yenken – one of the founders of social agronomy, his contribution to the organization and building of agricultural researches, development of their directions and methods for the further development of agrarian science. The scientific work of B.K. Yenken during his work at the Kharkiv Breeding Station and his participation in the 1st All-Russian Agricultural Congress. The place and role of the scientist in the formation of contemporary theoretical and methodological foundations in social agronomy, breeding and seed production are shown.