For citations:

Zapivalov S.A. EFFECT OF MULTI-VARIANT MANAGEMENT SYSTEMS OF LONG-TERM HAYFIELDS ON BOTANICAL COMPOSITION AND QUALITY OF FEED. IZVESTIYA OF TIMIRYAZEV AGRICULTURAL ACADEMY. 2021;(5):131-146. (In Russ.) https://doi.org/10.26897/0021-342X-2021-5-131-147