Publications
NIBIOs employees contribute to several hundred scientific articles and research reports every year. You can browse or search in our collection which contains references and links to these publications as well as other research and dissemination activities. The collection is continously updated with new and historical material.
2014
Forfattere
Håkon BorchSammendrag
No abstract has been registered
Sammendrag
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Forfattere
Marianne Bechmann Gitte Blicher-Mathiesen Katarina Kyllmar Arvo Iital Ainis Lagzdins Tapio SaloSammendrag
No abstract has been registered
Forfattere
Anne Falk ØgaardSammendrag
No abstract has been registered
Forfattere
Arvydas Povilaitis Antanas Sigitas Sileika Johannes Deelstra Kazimieras Gaigalis Giedrius BaigysSammendrag
No abstract has been registered
Forfattere
Matthias KoeslingSammendrag
Nitrogenbalances and -efficiency for 20 dairyfarms in the county of Møre og Rosmdal were presented.
Forfattere
Sissel Hansen Marie-Eve Bernard Philippe Rochette Joann Whalen Peter DörschSammendrag
In Norway, 65 % of the agricultural land is under grassland for feeding ruminants. The objective of the present study was to quantify N2O emissions from grassland on a fertile sandy loam in Western Norway, and to estimate the response of seasonal N2O emissions to added inorganic N, cattle slurry (CS) N and clover N. Ammoniumnitrate (AN) and CSwere appliedmanually at annual rates of 0, 100, 150, 200 and 250 kg ANN ha-1, 80 kg CS-Nha-1 or as a combination of 200 kgAN-N ha-1 and 80 kg CS-N ha-1. Background N2Oemissions were five times higher in summer season 2009 than in 2010, but the relative amount of N2O derived from AN was constant in both periods, amounting to 0.11 % of applied N. CS had no measurable impact on N2O emissions in 2009, but 0.15 % of CS-N was emitted as N2O during summer 2010. In the warm year of 2009, which included a drought period, 1–24 % of the N2O emissions were attributed to the effect of clover depending on fertilization. Clover had no effect onN2O fluxes in the cool andmoist year 2010. Our results suggest that N2O emissions in fertile Norwegian grasslands are to a great extent controlled by inter-annual variations in background emissions and variable contribution of biologically fixed N and CS-N.