Аграрный вестник Урала № 04 (183) 2019Агротехнологии
USING THE LESS WIDESPREAD FEED CROPS FOR FORMING A HIGH QUALITY FEED AGROPHYTOCENOSIS IN CONDITIONS OF THE NORTHERN REGION OF RUSSIA
In conditions of Northern region where livestock isfully provided with feed, there is a substantial deficit of vegetable proteinin animal rations. This is due to the predominance feeds of low and mediumprotein content and using a very limited variety of species in the feed cropproduction. The issue of growing good quality feed crops in enough quantity canbe solved by widening the species composition of cultivated feed plants. Thepurpose of this article was to study the rare species and cultivars of feedcrops for formation of high-quality feed agrophytocenosis in the Northernregion of Russia. The novelty of this study was in assessment of forage cropson the adaptation degree of adaptability to new growing conditions. Thepractical value of the results is the introduction of feed crops that optimallycombining the adaptive and productive properties. Their introduction isnecessary for widening species diversity of feed crops, strengthening the feedbase of livestock and increase the fertility of agricultural landscapes in theNorthern region of Russia. In the course of this study, a different reactionsof the studied feed crops relatively to the growing conditions was revealed.The most adaptive and highly productive feed crops were selected. Traditionalperennial basic gramineae and fabaceae are usually used for formation of feed agrophytocenosis.During two years of study, the Eastern „Pridonskaya“ fescue was selected as themost productive feed crops among the rare gramineae. This species was bred byVoronezh Research Institute of Agriculture. In the first year the total yieldgreen mass of this species was 51 t/ha. In the second year the total yield ofdry mass was 12.1 t/ha, and 32 t/ha and 6.2 t/ha respectively. Trifoliumpraténse „Korifei“ (bred by FSUE „Kotlasskoe“) was selected as the mostefficient feed crop among fabaceae. Its total yield in the first year was 50t/ha of green mass and 6.1 t/ha of drymass. In the second year there was 40 t/ha of green mass and 7.7 t/ha of drymass.
feed crops, introduction, feed production, perennial grasses, species, varieties, agrocenoses, chemical composition, yield, protein, exchange energy.
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