Fræðaþing landbúnaðarins - 13.02.2009, Page 222
220 | FRÆÐAÞING LANDBÚNAÐARINS 6, 2009
Friðrik Pálmason, Jón Guðmundsson og Halldór Sverrisson 2002. Symbiotic nitrogen fixation estimated by
use of Nb dilution method in annual blue lupin and perennial Nootka lupin in Iceland. Tenth International
Lupin Conference, Wild and cultivated lupin from the tropics to the poles.Laugarvatn Iceland, 19-24. June
2002, bls 211
Huss-Danell, K. 1997. Actinorhizal symbioses and theirN2 fixation. New Phytol. 136: 375-405
Jensen, Erik Steen, 1986. The influence of rate and time of nitrate supply on nitrogen fixation and yield in
pea (Pisum sativum L.). Fertilizer research 10, 193-202.
Kohls, S. J., Dwight D. Baker, Chris van Kessel & Jeffrey O. Dawson (2003).An assessment of soil
enrichment by actinorhizal N2 fixation using 815N values in a chronosequence of deglaciation at Glacier
Bay, Alaska. Plant and Soil 254: 11-17
Lalibeerté S. og Lalonde M. 1990. Morphological aspects of in vitro co-cultivation of Frankia alni subsp.
pommerii Lalonde (strain ACN1ag) and Frankia elaeagni (Schröter) Becking (strain EANlpec) with larch
(Larix x eurolepis Henry) cells. New Phytol. 115,51-59.
Myrold, D. D. & Kerstin Huss-Danell (2003). Alder and lupine enhance nitrogen cycling in a degraded
forest soil in Northern Sweden. Plant and Soil 254: 47-56
Olafur Guðmundsson og Sveinn Runólfsson 1988. Autum,n grazing of finishing lambs on annual lupine
(Lupinus angustifolius) under subartic conditions. Búvísindi Icel Agr. Sci. 1, 1988 45-57
Sigríður,Dalmannsdóttir, Þórdís Anna Kristjánsdóttir og Aslaug Helgadóttir 2004. Kynbætur á hvítsmára
(Trifolium repens L.) Fræðaþing landbúnaðarins 2004, 353-355
Svenning M. M., Jón Guðmundsson, I-L Fagelri, P. Leinonen 2000. Interaction between white clover
(Trifolium repens L.) and different Rhizobium leguminosarum biovar trifoli strains in Icelandic soil.
Proceeding at Cost 814 Crop development for cool and wet regions of Europe. Final Conference,
Pordenone, Italy 10-13 May 2000
Svenning M. M., Jón Guðmundsson, I-L Fagelri, P. Leinonen 2001. Competition for Nodule Occupancy
Between Strains of Rhizobium leguminosarum biovar trifoli and its Influence on Plant Production. Annals
ofBotany 88. s 781-787