Rit Mógilsár - 2013, Page 14

Rit Mógilsár - 2013, Page 14
 14 Rit Mógilsár 27/2012 hafa áður komið fram í áburðar- rannsóknum, þó að það heyri til undantekninga. Til dæmis komu slík áhrif fram fyrir stafafuru, blágreni og rauðgreni á fyrsta ári eftir gróðursetningu í jarðunnið akurlendi á Hvanneyri (Else Møller 2010) Áhrif mismunandi áburðartegunda Þar sem Gróska II og SivaPac eru oftar með marktækt betri lifun og hæð en viðmið en aðrar áburðar- tegundir má segja að torleystur áburður sé almennt betri en auðleystur áburður. Heimildir Bergsveinn Þórsson, Brynjar Skúlason, Rakel J Jónsdóttir og Valgerður Jóns- dóttir. (2011). Haustáburðargjöf á ný- gróðursett lerki, birki og stafafuru. Fræðaþing landbúnaðarins 2011, Bls 365 -368. Else Møller (2010). Hraðræktun jólatrjáa á ökrum: Lifun ungplantna og áhrif mismunandi áburðarmeðferðar. BS- verkefni í skógfræði, Landbúnaðar- háskóli Íslands, 75 bls. Guðmundur Hal ldórsson, Hal ldór Sverrisson, Guðríður Gyða Eyjólfsdóttir og Edda Sigurdís Oddsdóttir (2000). Ectomycorrhizae reduce damage to Russian larch by Otiorhyncus larvae. Scandinavian Journal of Forest Research. 15. Bls.354 -358. Goulet, F. (1995). Frost heaving of forest tree seedlings. A review. New Forests 9: 67-94. Hreinn Óskarsson (2010). Tree seedling response to fert i l izat ion during afforestation in Iceland. Doktorsritgerð. Forest and Landscape Danmark, Kaupmannahafnarháskóla. Hreinn Óskarsson og Sigríður Júlía Brynleifsdóttir (2009). The interaction of fertilization in nursery and field. on survival, growth and the frost heaving of birch and spruce. Icel. Agric. Sci 22, 2009, Bls 59-68 Hreinn Óskarsson, Aðalsteinn Sigur- geirsson og Karsten Raulund-Rasmussen (2006). Survival, growth, and nutrition of treeseedlings fertilized at planting on Andisol soils in Iceland: Six-year results. Forest Ecology and Management Volume 229, Issues 1–3, 1 July 2006, Bls. 88– 97 Jacobs, D.F., Timmer, V.R., 2005. Fertilizer-induced changes in rhizo- sphere electrical conductivity: Relation to forest tree seedling root system growth and function. New Forests 30, 147-166. Jón Guðmundsson. (1995) Áburðargjöf á birki í landgræðsluskógrækt, tilrauna- niðurstöður Skógræktarritið 1995 ársrit skógræktarfélags Íslands. Bls 129-135 Rakel J. Jónsdóttir (2011). Effects of nutrient loading in Lutz spruce seedlings (Picea x lutzii Littl.) during nursery rotation and on subsequent growth in field. Swedish University of Agricultural Sciences. Master Thesis no. 174. Southern Swedish Forest Research Centre. Alnarp 2011
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