TY JOUR TI THE GREEN MASS YIELD OF THE SORGO-SUDAN HYBRID AND MIXED AGROCENOSES IN THE CONDITIONS OF CENTRAL YAKUTIA KW sorghum-sudacorn hybrid KW mixed crops KW Central Yakutia KW sowing time KW yield KW green mass KW forage production JO INTERNATIONAL AGRICULTURAL JOURNAL AU Konstantinova, N.K. AU Pavlova, S.A. AU Pestereva, E.S. AU Zhirkova, N.N. AU Filippova, Z.M. PY 2026 IS 9 PB Electronic science