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.
2001
Sammendrag
Det er ikke registrert sammendrag
Sammendrag
The effects of cutting, grazing and fertiliser level on the long-term botanical composition were examined in swards established in 1968 at Svanhovd (69027"N 3003"E). The grass swards were sown with a mixture of timothy, meadow fescue and smooth meadow-grass. The swards were either cut only, or cut in combination with grazing either with cattle or with sheep, and fertilised according to common practice in the region or with 150 % of this amount. The botanical composition changed during the experimental period with large fluctuations in the amount of smooth meadow-grass and a notable decrease of timothy and meadow fescue. Both harvesting regime and level of fertiliser had significant effects on the botanical composition. Smooth meadow-grass dominated especially in swards that were ungrazed or grazed by cattle. In sheep grazed swards, tufted hair-grass dominated completely after some time, especially at the lower fertiliser level. Native grasses invaded the ungrazed swards to some extent, but were mainly couch grass at the higher fertiliser level and common bent and couch grass at the lower fertiliser level.
Forfattere
Anne-Kristin Løes Anne Falk ØgaardSammendrag
Det er ikke registrert sammendrag
Sammendrag
Det er ikke registrert sammendrag
Sammendrag
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Forfattere
Anne-Marte TronsmoSammendrag
Samling artikler om temaet "Low Temperatur Plant Microbe Interactions Under Snow
Forfattere
Anne-Marte Tronsmo H Okuyama T NakajimaSammendrag
The fungus Microdochium nivale (Fr.) Samuels & Hallet is the most widespread snow mold fungus. It is distributed over a wide range of temperatures, but is a serious pathogen mainly in cold to temperate regions of the northern hemisphere. Microdochium nivale causes pink snow mold on turf and forage grasses, and winter cereals and, at warmer temperatures, stem rot, leaf blotch and fusarium ear blight. It is an opportunistic species able to attack plants over a wide range of environmental conditions
Forfattere
Per Otto FlæteSammendrag
Det er ikke registrert sammendrag
Sammendrag
Magnesiummangel gir store skadar på ulike bartre-artar brukt til klyppegrønt og juletre. I nokre felt med lawsonsypress (Chamaecyparis lawsoniana) har skadane vore så omfattande at baret ikkje er salsvare. Også i nordmannsedelgran (Abies nordmanniana) er det meldt om skadar. Artikkelen omtalar symptom, skadar, opptak av magnesium i plantene og tiltak for å hindra skadane
Forfattere
Morten Ingerslev E. Mälkönen Petter Nilsen H.Ö. Nohrstedt H. Óskarsson Karsten Raulund-RasmussenSammendrag
Previous research has documented that nitrogen fertilization can lead to a significant tree growth increase in large parts of Scandinavia. Nutrient management of Nordic forests is currently under debate, mainly because environmental values are believed to be unnecessarily endangered by these actions. Nutrient management including fertilization, liming, recycling of wood ash or application of alternative nutrient sources can counteract nutrient deficiencies and imbalances, and be used for compensating the nutrients removed through harvesting. For successful implementation of nutritional management measures, several questions should still be studied. These questions mainly concern diagnosis of the need for applications, nutritional sustainability and treatment effects on the forest ecosystem and the surrounding environment.