grass mixture on nutritive value of forage. 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
Ainevahetusenergia muutuste erinevused õiepungade moodustumisest õitsemiseni puhas- ja segukülvide vahel on äärmuslikud. Tabel 7. Rohusööda keemilise koostise, seeduvuse ja ME muutus varase ja hilise koristusaja vahelisel perioodil (+ või - % päevas) Taimik TP NDF DDM ME % päevas % päevas % päevas % päevas I niide Pun ristik Varte -0,46 +0,76 -0,45 -0,08 Varte+Molisto -0,65 +1,15 -0,51 -0,09 Varte+Seine -0,53 +1,15 -0,67 -0,12 Varte+Amba -0,31 +0,86 -0,41 -0,07 II niide Pun ristik Varte -0,37 +0,46 -0,30 -0,05 Varte+Molisto -0,65 +0,87 -0,54 -0,10 Varte+Seine -0,36 +0,88 -0,31 -0,10 Varte+Amba -0,12 +0,37 -0,11 -0,05
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