The Green Mass Yield of the Sorgo-Sudan Hybrid and Mixed Agrocenoses in the Conditions of Central Yakutia

In Central Yakutia, the search for highly productive forage crops and the optimization of their agricultural practices are key factors in ensuring a sustainable feed base for livestock farming. The aim of this research is to study the formation of green forage yields in a sorghum-sudank hybrid, both on its own and in multi-species agrocenoses, at various sowing times. This article presents field research data on growing a sorghum-sudank hybrid in mixtures with sunflower, corn, cereals, legumes, and cruciferous crops. It was found that both the mixture composition and sowing time significantly influence crop productivity. It was found that first- and second-season sowings demonstrate the highest efficiency. An analysis of qualitative indicators demonstrated that the inclusion of accompanying components (corn and sunflower) in agrocenoses contributes to an increase in the energy value of the forage, increasing the content of digestible protein and the yield of feed units per hectare. Mixtures of sorghum-sudacorn hybrids with corn (yields 18.1–19.8 t/ha) and sunflower (16.7–18.4 t/ha) have been recognized as the most promising for the region. These combinations provide maximum green mass yield and are recommended for use in permafrost conditions.