The presented, GIS-based model classifies the loss of phosphorus due to surface runoff in agricultural ecosystems. The proposed modelling approach employs the following fundamental data: a detailed soil map, a map on land use, and the digital elevation model. The required maps and a voluminous data base was available for the Lippenrütibach basin, where the model was developed. The calculations performed produce not absolute but relative values and evaluate the potential risk for a parcel of leached phosphorus and the resulting eutrophication in relate aquatic systems. T e obtained results are promising when comparing them with field investigations on different sites of the catchment area.
Gilgen A., Felder R., Baumgartner S., Herzog F., Jeanneret P., Séchaud R., Paunovic S., Merbold L.
Agroscope researchers tested the FAO method for assessing the agroecological status of farms in Switzerland for the first time, demonstrating the advantages of a holistic evaluation as well as the limits of the tool.
In wheat crops, pesticides can be used more sparingly without sacrificing cost-efficiency. With oilseed rape the situation is more difficult, since the reduced yields are not offset by higher revenues. These are the findings of the analysis of the first two harvest years of the PestiRed project.
Soil samples can be measured directly in the field by means of spectroscopy. Agroscope researchers have tested mobile devices and shown how to make the best use of them.