Stikkord: fosforavrenning

Jordartsanpassad strukturkalkning för effektivare fosforretention

| Type artikkel: Forskningsprosjekt

Kategori: Fosfor, Klima og miljø

The purpose of this project is to define the amount of slaked lime needed for a given clay soil. We hypothesise that the amount of slaked lime needed for minimal phophorus loss is dependent on the clay content of the soil. The study will be conducted in a field with a drainage system and measuring station for sampling runoff and leachates.

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God skötsel av skyddszoner för effektivare växtnäringsretention

| Type artikkel: Forskningsprosjekt

Kategori: Fosfor, Næringsstoffer, Produksjonsmetoder

We are currently evaluating the effectiveness of grass buffer strips (GBS-eff) for nutrient retention. Today, there are no obligations to cut or remove the grass on GBS which may lead to phosphorus (P) saturation. In the on-going field experiments we are testing if removal (harvesting) the grass can reduce soil P enrichment in GBS and improve and even-out water infiltration, in order to advance sediment and P retention.

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Sustainable agriculture within the Baltic Sea Region: Do policy measures respond to policy objectives?

| Type artikkel: Rapport

Kategori: Gjødsel, Klima og miljø, Samfunnsutvikling

The Baltic Sea is dying. Oxygen-free bottom zones are increasing despite the binding targets of Nitrogen (N) and Phosphorous (P) reduction in the Baltic Sea Action Plan (BSAP). Nutrient runoff from agriculture is the most important source of this eutrophication. According to the EU, sustainable agriculture in the Baltic Sea Region (BSR) concerns several political objectives, including reducing eutrophication by nutrient abatement measures, sustain economic viability of farms and benefit society as a whole.

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Targeting critical source areas for phosphorus losses: Evaluation with soil testing, farmers’ assessment and modelling

| Type artikkel: Publisert studie

Kategori: Fosfor, Klima og miljø, Næringsstoffer

Diffuse phosphorus (P) losses from arable land need to be reduced in a cost-efficient way, taking into account their temporal and spatial variability. This study, based on 16 farms across southern Sweden, examined possibilities for identifying critical source areas for P losses based on the combined results of high-resolution erosion modelling, independent risk assessments by farmers, soil survey and SWOT analysis performed by farmers.

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Redistributing Phosphorus in Animal Manure from a Livestock-Intensive Region to an Arable Region: Exploration of Environmental Consequences

| Type artikkel: Publisert studie

Kategori: Erosjon, Fosfor, Gjødsel, Klima og miljø, Matjord, Samfunnsutvikling

Specialized agricultural production between regions has led to large regional differences in soil phosphorus (P) over time. Redistribution of surplus manure P from high livestock density regions to regions with arable farming can improve agricultural P use efficiency. In this paper, the central research question was whether more efficient P use through manure P redistribution comes at a price of increased environmental impacts when compared to a reference system.

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