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.
1998
Forfattere
Peter Botterveg Rodney Leek Eirik Romstad Arild VatnSammendrag
It is generally accepted that changes in agricultural management during the last decades have had negative effects in the forms of increased erosion and nutrient losses. In our analysis farmers are assumed to maximize expected profits. Economic incentives or direct regulations of agronomic practices may be used to change the farmers' management into a direction that will reduce the losses of nutrients and erosion. In an interdisciplinary research project with economists and ecologists, the effect of different policy measureson erosion and nutrient losses has been analysed. Policy measures analysed were, among others, catch crop requirements and subsidies for spring ploughing instead of autumn ploughing. First, an economic decision making model was ran for farms for a period of 20 years. The model decides the agronomic practice for each year on the different fields for a set of model farms. With the newly developed erosion model, the European soil erosion model (EUROSEM), the effect of the different agricultural practices were analysednot only at the level of single model farms, but also at the landscape level by use of a terrain model. The paper discusses
Forfattere
Eva Narten HøbergSammendrag
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Sammendrag
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Forfattere
Arne StensvandSammendrag
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Sammendrag
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Forfattere
Arne StensvandSammendrag
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Forfattere
Jan Bjerketvedt Øystein Dale Halfdan Jacobsen Reidar Jacobsen Jørn K. Lileng Torstein LislandSammendrag
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Forfattere
John Skartveit Reidun PommerescheSammendrag
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Forfattere
Torstein Solhøy John Skartveit Erling EideSammendrag
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Forfattere
Åshild Ergon S Klemsdal D Gaudet A Laroche T Nakajima Anne-Marte TronsmoSammendrag
Genes encoding the defence-related proteins chitinase, b-1,3-glucanase, peroxidase and PR-1a were induced in winter wheat by the snow moulds Microdochium nivale and the Low Temperature Basidiomycete (LTB). Cold hardening prior to inoculation facilitated this induction. 3"-ends of cold induced mRNAs in etiolated winter wheat seedlings were isolated with differential display. One of these had similarity with a family of cold induced genes in barley (BLT14).