Browsing Vitenskapelige artikler by Author "Hansen, Sissel"
Now showing items 1-7 of 7
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Effects of green manure herbage management and its digestate from biogas production on barley yield, N recovery, soil structure and earthworm populations
Frøseth, Randi Berland; Bakken, Anne Kjersti; Bleken, Marina Azzaroli; Riley, Hugh; Pommeresche, Reidun; Thorup-Kristensen, Kristian; Hansen, Sissel (Journal article; Peer reviewed, 2014-01)In repeatedly mown and mulched green manure leys, the mulched herbage contains substantial amounts of nitrogen (N), which may only slightly contribute to the following crops’ nutrient demand. The objective of the present ... -
Links between profitability, nitrogen surplus, greenhouse gas emissions, and energy intensity on organic and conventional dairy farms
Flaten, Ola; Koesling, Matthias; Hansen, Sissel; Veidal, Asbjørn (Journal article; Peer reviewed, 2018-11-18)This study examines the relationships between profitability, nitrogen (N) surplus, greenhouse gas emissions (GHG), and energy intensity and factors influencing these relationships in dairy farming. In-depth data from 10 ... -
N2O emission from organic barley cultivation as affected by green manure management
Nadeem, Shahid; Hansen, Sissel; Bleken, Marina Azzaroli; Dörsch, Peter (Journal article; Peer reviewed, 2012)Legumes are an important source of nitrogen in stockless organic cereal production. However, substantial amounts of N can be lost from legume-grass leys prior to or after incorporation as green manure (GM). Here we report ... -
Predicting field N2O emissions from crop residues based on their biochemical composition: A meta-analytical approach
Abalos, Diego; Rittl, Tatiana Francischinelli; Recous, Sylvie; Thiébeau, Pascal; Topp, Cairistiona F. E.; van Groenigen, Kees Jan; Butterbach-Bahl, Klaus; Thorman, Rachel E.; Smith, Kate E.; Ahuja, Ishita; Olesen, Jørgen E.; Bleken, Marina Azzaroli; Rees, Robert M.; Hansen, Sissel (Peer reviewed; Journal article, 2021-12-27)Crop residue incorporation is a common practice to increase or restore organic matter stocks in agricultural soils. However, this practice often increases emissions of the powerful greenhouse gas nitrous oxide (N2O). ... -
Reviews and syntheses: Review of causes and sources of N2O emissions and NO3 leaching from organic arable crop rotations
Hansen, Sissel; Frøseth, Randi Berland; Stenberg, Maria; Stalenga, Jarosław; Olesen, Jørgen E.; Krauss, Maike; Radzikowski, Paweł; Doltra, Jordi; Nadeem, Shahid; Torp, Torfinn; Pappa, Valentini; Watson, Christine A. (Journal article; Peer reviewed, 2019-07-17)The emissions of nitrous oxide (N2O) and leaching of nitrate (NO3) from agricultural cropping systems have considerable negative impacts on climate and the environment. Although these environmental burdens are less per ... -
Variations in nitrogen utilisation on conventional and organic dairy farms in Norway
Koesling, Matthias; Hansen, Sissel; Bleken, Marina Azzaroli (Journal article; Peer reviewed, 2017-06-22)Reduced N-surpluses in dairy farming is a strategy to reduce the environmental pollution from this production. This study was designed to analyse the important variables influencing nitrogen (N) surplus per hectare and per ... -
Variations of energy intensities and potential for improvements in energy utilisation on conventional and organic Norwegian dairy farms
Koesling, Matthias; Hansen, Sissel; Schueler, Maximilian (Journal article; Peer reviewed, 2017-06-17)abstract Due to the limited resources of fossil fuels and the need to mitigate climate change, energy utilisation for all human activity has to be improved. The objective of this study was to analyse the correlation between ...