TY JOUR TI MODERN METHODS OF CROPS BIOTIFICATION WITH SELENIUM: EFFICIENCY, PROSPECTS, AND LIMITATIONS KW biofortification KW selenium KW agronomic methods KW biotechnological methods KW absorption coefficient KW organic selenium KW integrated approaches JO Bulletin of KSAU AU Zhigaylov, A.S. AU Vechtomova, E.A. AU Russakov, D.M. AU Yustratov, V.P. PY 2026 IS 0 PB Krasnoyarsk State Agrarian University