The overall aim is to develop and validate an applied DSM method in different geological
environments and to test the products in advisory services for farmers. The specific objectives are:

•  To validate the method in different geological environments.
• To validate whether the method can be improved by including qualitative data from the SGU Quarternary maps.
• To validate whether the accuracy of the maps will be improved by combining data mining
• methods with geostatistical methods (e.g. regression kriging).
• To estimate the accuracy in areas with a low number of reference soil samples.
• To improve the model for OM developed by Söderström (2012)..
• To test the practical usefulness of the maps for farmers. Liming recommendations will be tested by the farm service of the Swedish Rural Economy and Agricultural Societies.