Growing the rare crop of Sudan grass in single and binary crops in the conditions of the Vologda region

This article introduces an analysis of data collected during two years of the field research (2023-2024) in the experimental field of SZNIIMLPKh in the Vologda region. The aim of the work is to compare the productivity and nutritional value of annual crops which have been grown both separately and in mixtures for fodder production. The following crops have been used in the experiments: Sudan grass (Chishminskaya rannyaya variety), field peas (Vologodskiy usatyy variety), spring vetch (Lugovskaya- 22 variety), spring rape (Bison variety) and oats (Yakov variety). The results have showed that legume-cereal mixtures provided significant yield indicators per season: 31.2-44.3 tons of green mass, 5.27-8.09 tons of dry matter, 3.8-6.0 thousand feed units and 0.63-1.06 tons of crude protein per hectare. The exchange energy output varied from 49.8 to 75.9 GJ. The highest content of crude protein in the first cut (16.4% and 14.5%) has been recorded in the mixtures of Sudan grass with peas (at sowing rates of 60:40 and 40:60%) and Sudan grass with spring vetch (by proportion of 40:60%).