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.
2012
Forfattere
Sekhar Udaya Nagothu David Nicholas Barton A.K. Gosain K. Palanisami Kota Tirupathaiah Per Stålnacke Sanjay Gupta Johannes DeelstraSammendrag
Det er ikke registrert sammendrag
Sammendrag
The current IPCC guidelines define an estimate for the fraction of mineral fertilizer and animal waste (manure) lost to leaching and runoff (FracLEACH). The FracLEACH default is 30 %. In Norway, 18 % has been used based on calculations made in 1998 (Vagstad et al., 1998). The main purpose of this study was to give an updated estimate of nitrogen (N) leaching in relation to the amounts of N applied in agriculture (FracLEACH). The term losses in this report include both surface and subsurface runoff. The estimates of FracLEACH presented in this report were based on data from the Agricultural Environmental monitoring program (JOVA). The JOVA-program includes catchment and field study sites representing typical situations in Norwegian agriculture with regard to production system, management, intensity, soil, landscape, region and climate. Data from plot- scale study sites confirmed the level of N leaching from the agricultural areas within the JOVA catchments. The overall FracLEACH estimated in this study was 22 % of the N applied. This average covers a variation between sites from 16 % on grassland in Valdres to 44 % in intensive vegetable, potato and cereal production areas in the southernmost part of Norway. Runoff is the most significant parameter for the difference in FracLEACH between catchments. In addition, production system and to some degree soil type are important for FracLEACH. It is thus suggested to use different FracLEACH-values for the different production systems and adjust FracLEACH according to average runoff for the region.
Sammendrag
Det er ikke registrert sammendrag
Forfattere
Sarah Hale Marie Catharina Elmquist Rahel C Brändli Thomas Hartnik Lena Jakob Thomas Henriksen David Werner Gerard CornelissenSammendrag
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Forfattere
Lena Jakob Thomas Hartnik Thomas Henriksen Marie Catharina Elmquist Rahel C Brändli Sarah Hale Gerard CornelissenSammendrag
Det er ikke registrert sammendrag
Forfattere
Amy M P Oen Barbara Beckingham Upal Ghosh Marie Elmquist Kruså Richard G. Luthy Thomas Hartnik Thomas Henriksen Gerard CornelissenSammendrag
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Sammendrag
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Sammendrag
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Forfattere
Tatsiana Espevig Arne Tronsmo Linda Hjeljord B. Huang C. Xu M. DaCosta B.B. Clarke Anne Marte Tronsmo Trygve S. AamlidSammendrag
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Forfattere
Tatsiana Espevig Arne Tronsmo Linda Hjeljord Bingru R. Huang C Xu M. DaCosta B.B. Clarke Anne Marte Tronsmo Trygve S. AamlidSammendrag
Det er ikke registrert sammendrag