Fodder galega (Galega orientalis Lam) grass potential as a forage and bioenergy crop
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Kuupäev
2017
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Abstrakt
Fodder galega (Galega orientalis Lam.) is a forage legume that has been grown in
Estonia for almost forty five years. Pure galega is known to be persistent, high-yielding crop and
rich in nutrients, in particular crude protein (CP), neutral detergent fibre (NDF) and acid detergent
fibre (ADF). Galega is usually grown in a mixture with grass in order to optimize its nutrient
concentration, increase dry matter (DM) yield and improve fermentation properties. The trial
plots were established on a typical soddy-calcareous soil. There are certain grass species suitable
for the mixture. In this study galega mixtures with reed canary grass cv. ‘Marathon’, timothy cv.
‘Tika’, red fescue cv. ‘Kauni’ and festulolium cv. ‘Hykor’ were under investigation in three
successive years (2013–2015). In order to increase competitiveness of grasses and the yield of
the first cut, two N fertilization levels were used: N0 and N50 kg ha-1
. Two cuts were carried out
during the growing season in all three years. The total dry matter yield varied from 9.1 to
12.8 t ha-1
. The NDF concentration in the DM varied from 495−559 g kg-1
. Both DM-yield and
NDF were dependent on the year, mixture, cutting time and fertilization. Nitrogen fertilization
(N50 kg ha-1
) favoured grass growth and reduced the role of galega in the sward.
Kirjeldus
Article
Märksõnad
fodder galega, goat’s rue, yielding ability, galega-grass mixtures, fertilization, articles