The article presents data on the productivity of a new perennial crop, eastern galega, in the conditions of the Middle Taiga subzone of Yakutia. Experimental research was conducted on an irrigated plot within the Lena River agricultural landscape. The soil of the experimental plot is frozen meadow-chernozem solonetzic-solonchak. The soil reaction is alkaline, with a pH (water) of 7.8-8.6; humus content in the upper horizon is 3.14%. The seeding rate for pure stands of eastern galega for green mass was 1.5–2.0 million seeds/ha with a row spacing of 15-30 cm. Galega seeds were scarified before sowing, and manual inoculation with the Rhizotorfin biopreparation was performed on the day of sowing. Mineral fertilizers were applied at rates of (NPK)60 kg/ha a.i., (NPK)90 kg/ha a.i., and without mineral fertilizer application. Irrigation was carried out at a rate of 100-150 m³/ha when productive moisture in the arable layer fell below 60%. Field work was conducted according to the recommendations of the Agricultural Management System in the Republic of Sakha (Yakutia), 2021, and the methodological manuals of the All-Russian Fodder Research Institute, 1995. Laboratory analyses were performed using an IR Analyzer Spectra Star 2200 at the Shared Use Center of the Federal Research Center YSC SB RAS. According to three years of research data, the green mass yield of galega ranged from 3.0-3.6 t/ha, showing high nutritional value with a metabolizable energy concentration of 8.88-9.25 MJ/kg of dry matter. The supply of digestible protein per 1 feed unit reached 233.9 – 245.1g. In autumn, plants formed 3-4 overwintering buds on the underground parts of stems and developed up to 15 root suckers. Plant regrowth in spring was observed in late May.Thus, the cultivation of eastern galega, as a more frost-resistant crop of the sub-taiga zone of Siberia, is quite feasible in Central Yakutia.
Maksimova et al. (2026) studied this question.