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РАСТЕНИЕВОДСТВО И ЗЕМЛЕДЕЛИЕ
ͪКормопроизводствоͫ № 6, 2015
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INTRODUCING SILPHIUM PERFOLIATUM FOR FODDER
IN THE MODERATE ARID CONDITIONS OF THE NORTHERN KAZAKHSTAN
N. V. Malitskaya, PhD Agr. Sc.
Department of Agronomy and Crop Science, Kazakh Agrotechnical University named after S. Seifullin
010010, Kazakhstan, Astana, Prospekt Pobedy, 62
E-mail:
Silphium perfoliatum as a minor forage crop is currently culƟvated in the forest-steppe of the Northern Kazakhstan
region of the Republic of Kazakhstan and the Omsk region of the Russian FederaƟon. It was introduced in the moder-
ate arid condiƟons of the Northern Kazakhstan as a promising crop due to its high quality feed. The germinaƟon abil-
ity and plant survival during the following three years were recorded in our research. The main development stages
and the vegetaƟon period length were marked. The dynamics of green mass accumulaƟon was studied in the cuƫng
period, from shooƟng Ɵll flowering. The nutriƟonal value was recorded by content of feed units, digesƟble protein
and metabolizable energy. The research was conducted in 2011–2014 in accordance with the field studies methodol-
ogy. The main results refer to the full plant development, which was 256 days. The maximal green mass producƟvity
reached 30.3 tons ha-1 in the flowering period of the 3rd year, being 1.9 tons ha-1 lower than that in the forest-steppe.
The silphium producƟvity was 3.62 tons ha-1 dry mass, 2.09 tons ha-1 feed units, 0.54 tons ha-1 digesƟble protein. The
crop culƟvaƟon profitable was 109 %. Therefore, it is possible to culƟvate silphium in the condiƟons of the moderate
arid steppe of the Northern Kazakhstan for vitaminized grass meal, silage, and also in a fresh kind. Balanced fodder is
available in the harvesƟng maturity — in budding stage and in the middle of budding stage–beginning of flowering.
Keywords: perennial forage crop, harvesƟng maturity, producƟvity, nutriƟonal value, economical effeciency.
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