Publikasjoner
NIBIOs ansatte publiserer flere hundre vitenskapelige artikler og forskningsrapporter hvert år. Her finner du referanser og lenker til publikasjoner og andre forsknings- og formidlingsaktiviteter. Samlingen oppdateres løpende med både nytt og historisk materiale. For mer informasjon om NIBIOs publikasjoner, besøk NIBIOs bibliotek.
2009
Forfattere
Lars NesheimSammendrag
For various reasons the area suitable for growing rape (Brassica napus L. var. oleifera Metzg.) and turnip rape (Brassica rapa L. var. oleifera Sinsk.) is limited in Norway. There are several other oil producing species, both cruciferous plants and others, but only a few of them have previously been investigated under Nordic climatic conditions. As a part of a project called "Opportunities for Norwegian production of bio-diesel from agricultural crops" some alternative oil seed crops were grown on three sites in the years 2007 and 2008. The sites were Apelsvoll and Vollebekk in South-Eastern Norway and Kvithamar in the Central part of Norway. The following species were investigated: Oil flax (Linum usitatissimum L.), Sunflower (Helianthus annuus L.), Sarepta mustard (Brassica juncea L.), Camelina (Camelina sativa L.), Crambe (Crambe abyssinica Hochst.) and Blue lupine (Lupinus angustifolius L.). Also a cultivar of spring rape was included in the experiments. In the first year the oil seed yield was rather low for all crops on all sites. In 2008 the quality of the experiments was better, and particularly at Vollebekk and Kvithamar the yields were satisfactory. However, for sunflower the growing season was too short at the experimental sites, and for camelina, crambe and sarepta mustard the seed yields were rather low. Oil flax and spring rape produced about 2.4 tons oil seeds per hectare and for blue lupine the yield was about 3.7 tons of seeds. In addition to seed yields, data on oil contents of the seeds will be presented.
Sammendrag
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Sammendrag
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Sammendrag
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Forfattere
Lena Lie NymoenSammendrag
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Tor J. JohansenSammendrag
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Anders Often Bonsak HammeraasSammendrag
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Forfattere
Anders Often Bonsak HammeraasSammendrag
Det er ikke registrert sammendrag
Sammendrag
Colour has increased significantly in several Norwegian rivers and lakes over the past two - three decades (Haaland et al. 2007; de Wit et al. 2007). This has also been observed throughout Northern hemisphere (Forsberg and Petersen 1990; Freeman et al. 2001; Roulet and Moore 2006; Tranvik and Jansson 2002). The long term increase in colour has coincided with the decline in anthropogenic acid emissions which peaked in Europe around mid 1970s (Schöpp et al. 2003). During the earlier days of the acid rain history, Krug and Frink (1983) hypothesised that acid rain possibly could explain the previously reduced colour in lakes observed on the Northern hemisphere. The increase in colour and concentrations of organic carbon in lakes throughout the past decades have by several authors again been linked to the reduction of atmospheric acid emission, in the UK (Evans et al. 2006), in Norway (de Wit et al. 2007) and in northern Europe and northern America (Monteith et al. 2007).
Forfattere
Audun KorsæthSammendrag
Det er ikke registrert sammendrag