Browsing by Author "Demydas, H."

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    Binary sowings as a basis for the intensification of fodder production industry
    (Збірник наукових праць Уманського НУС, 2020) Demydas, H.; Poltoretskyi, S.; Burko, L.; Veiler, S.
    In the article analytical literature review of Ukrainian and world best practices on common vetch growing in binary sowings was conducted. Scientific publications of domestic and foreign scientists on the significance of binary crops in fodder production, selection of crops for joint cultivation were analyzed. The generalization and systematization of the studied material was carried out. Purpose of the research was to conduct an analytical literature review of Ukrainian and world best practices on common vetch growing in binary crops. General scientific methods, in particular, the following: hypothesis, observation, analysis, synthesis, induction and deduction, abstraction and generalization were used during the research. Own observations and literature sources from the chosen field of research were the uased in the material. Scientific publications of domestic and foreign scientists on the significancy of binary crops in fodder production, selection of crops for joint growing were analyzed to achieve this purpose. Generalization and systematization of the studied in tha research material was carried out. Conclusions. It was found that common vetch is mainly cultivated in mixtures with spring cereals. This crop can be grown for both spring and summer sowing in topping and post-harvest sowings with oats, barley, Sudan grass and other spring cereal crops; for hay and seeds — in arid conditions with a continental climate. However, seed yields in such regions are very low and vary considerably depending on the amount and distribution of spring rains. Providing of livestock production with high-quality fodders due to legume-and-cereal mixtures of annual crops makes it possible to expand the range of fodders in the diets of ruminants in the stall period
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    Fodder productivity of meadow clover varieties depending on the growing technology
    (Ukrainian Journal of Ecology, 2021) Demydas, H.; Galushko, I.; Poltoretskyi, S.; Novak, A.; Liubych, V.; Poltoretska, N.
    The research results for 2018–2020 on the formation of fodder productivity of the yield of the dry mass of different varieties of meadow clover from 1 ha depending on the sowing methods on different backgrounds of fertilizer on typical low-humus chernozems of the Forest-Steppe of Ukraine were presented. On average, for the first three years of growth and use, meadow clover provided productivity of yield of the dry mass of 8.22–9.88 tons from 1 ha, which depended little on sowing methods. Productivity increased by 8–12 % when inoculating seed with nodule bacteria combined with the application of N60P60K90 compared with the variant without fertilizers and only by 4–6 % under separate application of fertilizers (Р60K90 or N60P60K90) or seeds inoculation on the background without fertilizers. The application of N60 on the background of Р60K90 provided the highest payback of 1 kg of fertilizer (6–7 kg of dry mass) among fertilizers. In the first year, sowing under cover of spring barley provided higher productivity by 22–25 %, and in the second and third years, coverless sowing was provided by 7–10 %. The most productive variety was Taifun, which was 0.10–0.66 t/ha of dry mass superior to Lybid and Tina varieties. The factor of fertilization was the most influential in yield of dry mass from 1 ha and the sowing method with a share proportion of 55 % in the first year. Meadow clover annually provided three mowings of fodder biomass with the share of the first mowing of 44–50 %, the second – 32–34 %, and the third – 18–24 %, and the uneven distribution of the yield by mowing by 30–47 %