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.
1999
Forfattere
Arnfinn Nes Bjørn Hageberg K.I. SchiaSammendrag
Tre "kloner" av solbærsortane "Ben Alder", "Ben Tirran" og "Ben Tron" har vore dyrka i forsøk på Kise i seks år. Alle sortane har gjeve gode avlingar, og det er ingen skilnader mellom "klonene" hjå nokon av sortane.
Forfattere
Arnfinn NesSammendrag
Jordbærproduksjonen i Spania er konsentrert til et mindre område ved byen Huelva nær Middelhavet. Der vert det dyrka jordbær på 80 000 dekar og det vert planta på nytt kvart år. "Camarosa" er no nytta på 97 % av arealet.
Forfattere
Nina Heiberg Roald LundeSammendrag
Et markforsøk med seks ulike kloner av "Veten" ble gjennomført for å se om det hadde skjedd noen endringer i sorten "Veten". Det ble ikke funnet forskjeller mellom kloner innsamlet fra eldre felt og en klon som nå er i bruk i statskontollert avl.
Sammendrag
Det er ikke registrert sammendrag
Sammendrag
Det er ikke registrert sammendrag
Forfattere
Mats HøglindSammendrag
Det er ikke registrert sammendrag
Forfattere
M. Hóglind P. VirkajárviSammendrag
Det er ikke registrert sammendrag
Forfattere
M. Hóglind E. SkåraSammendrag
Most farms in Norway have pasture which can neither be re-seeded nor topped. This research aims to evaluate herbage production and grazing potential, animal performance and develop guidelines for grazing for such areas
Forfattere
J Bligaard Richard Meadow O Nielsen A Percy-SmithSammendrag
The use of felt traps to estimate oviposition by the cabbage root fly, Delia radicum (L.), and turnip root fly, Delia floralis (Fall.), was compared with soil sampling at seven localities between 1992 and 1994 in Denmark and Norway. In all, 281 comparisons were made, based on 6800 samples. In 4.6% of these comparisons no eggs were found by either method. In 16% of the comparisons, 2.0±0.41 (±S.E.) eggs were found per soil sample and no eggs were found in felt traps, whereas in 0.7% of the comparisons 0.10±0.03 eggs were found per felt trap and no eggs in soil samples. When eggs were found using both methods, the ratio between soil sampling and felt traps varied from 13.1±3.2 when the egg laying rate was very low to 1.8±0.2 at high egg laying rates. Regression analysis showed significant correlation between felt trap catches and soil sampling (P
Forfattere
Espen Haugland R.J Froud-WilliamsSammendrag
1. In order to investigate the factors influencing the establishment of seedlings in permanent grassland, the influence of soil moisture and nitrogen fertilisation on competition between established Lolium perenne and seedlings of Phleum pratense or Trifolium pratense was studied in two experiments under greenhouse conditions using the `split-box"-technique. 2. There was no difference in the production of plant dry matter of P. pratense or T. pratense between 30 % volumetric soil water content (-0.005 MPa) and 22 % (-0.04 MPa), but 15 % soil moisture (-0.33 MPa) reduced plant growth. L. perenne yields were linearly reduced by reduced soil moisture content. 3. Shoot competition from L. perenne reduced the plant dry matter yield of P. pratense and T. pratense more than did root competition in these experiments. When shoot competition was present, differences between moisture contents were not detected, indicating that light was probably the limiting resource under such conditions. No significant interaction between root competition and soil moisture were observed for plant weight. 4. Root competition was not prevented even though sufficient water and nitrogen were supplied. This indicated either that some other growth factor was limiting or the plants competed for resources at the root hair level even though sufficient resources were supplied at the pot or field scale. Therefore, in the situation of direct drilling of species during grassland renovation, it may be difficult to alleviate competition by adequate provision of water and nitrogen.