The Integrated Nutrients Model for Catchments - Nitrogen (INCA-N) model was applied in Savijoki, a small (15,4 km2) agricultural catchment, in order to analyse possibilities to achieve the targeted 50 % reduction in agricultural nitrogen loading. The model was applied for the years 1995-1999, representing the first period of the Finnish Agri-Environmental Programme, a widely adapted policy measure for controlling environmental impacts of agriculture in Finland