TY JOUR TI Feeding qualities of promising annual fodder crops at different sowing dates in the cryolithozone of Yakutia KW amaranth KW pea-oat mixture KW vetch-oat mixture KW chemical composition KW nutritional value KW sowing dates KW Central Yakutia JO International Journal of Applied Sciences and Technology Integral AU Zhirkova, N.N. AU Pestereva, E.S. AU Pavlova, S.A. AU Zakharova, G.E. AU Vinokurova, A.I. PY 2026 IS 0 PB Electronic science