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2018, N 4 (34) |
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FORAGE PRODUCTION, FEEDING OF AGRICULTURAL ANIMALS AND TECHNOLOGY
OF FORAGES
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Dmitriyev V., Bojko V., Timokhin A., Khramov S. |
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Perennial grasses in forage production in Western Siberia |
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Scientific researches were carried out in 2001-2017 by the laboratory of field fodder production and the department of northern agriculture in two zones of the Omsk region in the experimental fields of the Omsk Agrarian Scientific Center. The studied in the experiments of the under-taiga zone of grass mixtures in productivity had significant differences from the control, the yield of feed units was 4.47-4.81 t/ha, which is 15-24% higher than the control version – Trifolium rubens + Phleum pratense – 3.88 t/ha. The specific composition of the mixtures also affected their productivity. The least productive proved to be a mixture Trifolium rubens + Phleum pratense, from 1 ha of sowing obtained dry matter – 5,18 t, digestible protein – 0,56 tons, metabolizable energy, 50.3 GJ. The highest yield was provided by a grass mix consisting of Galéga orientális Lam., Trifolium rubens, Bromopsis inermis and Phleum pratense: dry matter 6.42, digestible protein 0.70 t / ha, exchange energy 62.3 GJ / ha. In the conditions of the south of Western Siberia, the mixture of Galéga orientális Lam. with Bromopsis inermis was the most productive of perennial grasses, having formed on backgrounds with an elevated and high content of mobile phosphorus in the soil from 8.99 to 9.39 t / ha dry (41.85 to 47.15 t / ha of green) mass without nitrogen and potassium fertilizers. Backgrounds with increased and high availability of mobile phosphorus increased the collection of dry matter by 18-28%. Nitrogen fertilizing N30,60 had little effect on the productivity of the mixture. Only the introduction of 60 kg ai. per ha with each mowing increased the collection of dry mass by 0.65 t / ha.
Keywords: FODDER PRODUCTION, PERENNIAL GRASS, NUTRITIONAL VALUE, IRRIGATION |