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.
2010
Forfattere
Trygve S. Aamlid Line Rosef Per Anker Pedersen Anne A. SteensohnSammendrag
A factorial trial comparing various subsoils (mineral, organic, and 50/50 (v/v) mineral/organic mixture), no liming vs. liming (1100 kg CaO/ha), and no sowing vs. sowing of an imported seed mixture or a mixture based on Norwegian mountain ecotypes, was established on 9 July 2008 in Bitdalen, Telemark. The establishment of vegetation from seed was faster on the organic and mixed soils than on the mineral soil. Although the initial pH(H2O) was higher in the mineral soil (5.8) than in the organic and mixed soils (4.9-5.0), the greatest relative effect of liming on plant cover was found on the former soil type. The imported seed mixture, mostly consisting of Danish and Dutch varieties, resulted in faster establishment than the seed mixture consisting of Norwegian ecotypes. One year later, the difference in ground cover was less conspicuous, but total above-ground plant biomass was almost three times higher after use of the imported seed mixture (77 vs. 29 g DM/m2). The imported seed also had a much greener appearance than the Norwegian ecotypes and the local vegetation. On average for soil types and liming treatments, the ground cover on unseeded plots increased from 1% six weeks after sowing to 24% after fourteen months; this cover mostly consisted of Agrostis spp. and mosses. It is concluded (1) that soil organic matter is a valuable resource that should be well preserved during restoration projects; (2) that the use of imported / unadapted seed mixtures must be avoided; and (3) that the use of a well adapted seed mixture from alpine ecotypes may be a good alternative to leaving the ground unseeded especially where there is a poor seed bank, where there is a need for rapid development of vegetation cover, or where a cover of grasses is wanted for functional reasons.
Forfattere
Trygve S. Aamlid Jon SælandSammendrag
The Norwegian Nature Management Act prohibits use of introduced plant material in natural and semi-natural landscapes. The main objectives of the project FJELLFRØ are (1) to collect parent seed material in mountain regions, and (2) to propagate and develop seed production techniques for these species/ecotypes. The project is owned by Telemark Seed Growers Association, supported financially by Innovation Norway and various public agencies / private companies for the period 2007-2010, and organized by Bioforsk. A total of 420 g site-specific seeds of 227 ecotypes belonging to 33 species have been collected in geographically distant mountain regions in 2005, 2007 and 2008. Species of high priority are Festuca ovina, Poa alpina, Phleum alpinum, Avenella flexuosa, Agrostis mertensii, Anthoxanthum odoratum ssp. alpinum. By November 2009, 38 first generation multiplication fields have been established after raising transplants in nurseries. By the same date, 13 commercial second-generation fields have been seeded by farmers organized through Telemark Seed Grower"s Association. Site-specific seed mixtures are expected for sale from 2011 onwards
Forfattere
Trygve S. AamlidSammendrag
Det er ikke registrert sammendrag
Forfattere
Trygve S. AamlidSammendrag
Det er ikke registrert sammendrag
Forfattere
Trygve S. AamlidSammendrag
This lecture, repsented at the Norwegian Greenkeeper Association"s international seminar on playing quality, discusses which characters recorded in ordinary turfgrass variety testing programs that are most important for the golfer"s perception of playing quality
Forfattere
Trygve S. AamlidSammendrag
This lecture for Czech greenkeepers presents preliminary results form STERF"s irrigation project
Forfattere
Trygve S. AamlidSammendrag
This lecture is based on various species- and variety evaluation programs in Europe, 2003- 2010
Forfattere
Gustav FystroSammendrag
Begrepet jordvern blir tillagt ulik betydning i ulike deler av verden. I Norge er det nærmest synonymt med å sikre etterkommere muligheten til å dyrke egen mat på egen jord. Opplevelsen av hvilke arealressurser det er særlig knapphet på er viktig for å forstå begreps- og kulturforskjeller mellom land. Som eksempel er vern mot nedbygging av naturmark noen steder sterkere enn vern mot nedbygging av dyrka jord. Vektlegging av matproduksjon som argument i jordverndebatten synes å styrke seg hos oss.
Forfattere
Gustav FystroSammendrag
Jordvern handler først og fremst om å sikre etterkommere muligheten til å dyrke egen mat på egen jord. Landskapsverdier generelt bør imidlertid sterkere inn i jordverndebatten. Klassiske konflikter i jordvernsammenheng knytter seg til tettsted- og byutvikling.
Forfattere
Trygve S. AamlidSammendrag
Foredrag ved IPM-seminarer i regi av Svenska Golfforbundet. (pdf av foredraget lastes bare opp ved registrering av Stockholm-møtet)