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2018, N 2 (32) |
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FORAGE PRODUCTION, FEEDING OF AGRICULTURAL ANIMALS AND TECHNOLOGY
OF FORAGES
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Sleptsova N., Ivanova L. |
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Productivity of fodder crops with mineral nutrition in the conditions of the Viluy Watershed agricultural landscape in Central Yakutia |
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It is the first time the results of studies on the effect of mineral nutrition on the yield and productivity of fodder crops in the conditions of the middle taiga zone of Yakutia have been presented. The studies were carried out in the Viluy watershed agricultural landscape in the conditions of the first agroecological group of lands. The zone soils of the upland between alaases (alaas –Sakha – a meadow) of the Viluy watershed agricultural landscape are the permafrost taiga podzol soils. The object of study on the effect of increasing doses of mineral fertilizers on yield and productivity in the conditions of the Viluy watershed agricultural landscape was the regionalized variety of Pokrovsky 9 species of oat and the East Siberian species of colza, which, under favorable conditions of Yakutia, can make two harvests. In the Viluy watershed agricultural landscape, the agrotechnics of oat cultivation for the production of succulent fodder with the application of fertilizers made it possible to obtain up to 24.8 t / ha of green material. The potential productivity of green material of oats with the introduction of N135P120K120 was for exchange energy 23.1 GJ, feed units - 50.2 quintal and raw protein - 41.01 quintal from 1 hectare. The cultivation of spring colza in the Viluy watershed agricultural landscape with the application of mineral fertilizers in doses of N135P120K120 ensured the production of green material up to 23.7 t / ha with the collection of exchange energy up to 22.00 GJ, fodder units - 16.14 quintal and crude protein - 47.67 quintal from 1 hectare.
Keywords: FODDER CROPS, OAT, COLZA, NUTRITION MODE, FERTILIZERS, CROP YIELD, PRODUCTIVITY, PERMAFROST SOILS, AGRICULTURAL LANDSCAPE |