LUTSERNI SEGUKÜLVI BOTAANILISE KOOSSEISU MÕJU ROHUSÖÖDA KVALITEEDILE
Agronomy 2010/2011, 133138.
Complementary species are used in legume-grass mixtures in order to use environmental
resources efficiently and reduce N emission. The aim of this investigation was to study the
common lucerne (Medicago sativa, L) ´FSG 408 DP´ and hybrid lucerne (Medicago varia, HL)
´Karlu´-grass mixtures during the years 2007-09. The grasses used in the mixture were hybrid-
ryegrass ´Molisto´, tall fescue ´Seine´, meadow fescue ´Darimo´, reed canarygrass ´Palaton´
and smooth bromegrass ´Lincoln´.
Maturity stages were accompanied by significant changes in nutritive value: increased
NDF, decreased CP, DDM, ME. Especially in the first cut the quality declines rapidly when the
forage biomass increases. Dynamics of quality changes depended on the speed of species'
seasonal development. Botanical composition of lucerne-grass mixtures showed positive
correlation between percent of lucerne and CP (r = 0,73; p < 0,05) and negative correlation
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