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.
2015
Sammendrag
No abstract has been registered
Forfattere
Helena Aronsson Björn Ringselle Lars Andersson Göran BergkvistSammendrag
Methods for control of couch grass (Elymus repens L.) with reduced tillage and cover crops to achieve low risk of nitrogen (N) and phosphorus (P) leaching were investigated. Treatments with reduced post-harvest tillage (one or two passes with duckfoot cultivator), hoeing between rows in combination with a cover crop, and a cover crop mown twice during autumn were compared with treatments with conventional disc cultivation and the control without tillage or cover crop. The study was conducted on a sandy soil in Sweden with measurements of N and P leaching. A 2-year experimental protocol was used, repeated twice. Treatments were implemented in the first year, and effects on couch grass (shoot density, shoot and rhizome biomass) were measured during autumn and in the second year. Significant effects of a single duckfoot cultivation and cover crop strategies were observed on couch grass shoot density in autumn but persistent effects were not verified. In conclusion, a single cultivation after harvest instead of repeated reduced the risk of N leaching and a cover crop in combination with hoeing or mowing effectively reduced it. Repeated cultivations resulted in mean annual N leaching of 26 kg N ha−1 compared with 20 kg in the treatment with one cultivation, 17 kg in the control, 16 and 12 kg in cover crop treatments with mowing and hoeing, respectively. The P leaching was small (0.04–0.09 P ha−1 year−1), but there were indications of increased P drainage water concentrations in the treatment with a cover crop which was mown.
Sammendrag
No abstract has been registered
Forfattere
Knut Egil Bøe Grete Helen Meisfjord Jørgensen Cecilie Marie MejdellSammendrag
No abstract has been registered
Forfattere
François Mayer Frédéric B. Piel Anna Cassel-Lundhagen Natalia Kirichenko Laurent Grumiau Bjørn Økland Coralie Bertheau Jean-Claude Grégoire Patrick MardulynSammendrag
No abstract has been registered
Forfattere
Daniele Asioli Tormod Næs Arnstein Øvrum Valerie Lengard AlmliSammendrag
No abstract has been registered
Forfattere
Anne Kjersti Uhlen Ann Katrin Holtekjølen Stefan Sahlstrøm Mauritz Åssveen Bente KirkhusSammendrag
No abstract has been registered
Forfattere
John Marshall Bryden Lesley Riddoch Ottar BroxSammendrag
No abstract has been registered
Forfattere
Paal KrokeneSammendrag
No abstract has been registered
Forfattere
Kjersti Bakkebø FjellstadSammendrag
No abstract has been registered