The project community, consisting of KTBL, VDLUFA and the Association of Soil Conditioning, prepared a data base on organic residues already in 1997. This data base served as a basis for the data base project 'Organic and Mineral Residues' started in 1998, which is financed by the German Federal Foundation for the Environment (DBU), Osnabrück.
The objective of the DBU-promoted project was to include data on mineral residues, commercial fertilisers, composts and co-ferments in the database, alongside the already existing organic residues, in order to obtain a comprehensive data-pool covering all potentially recyclable residues. The structuring of the database focused on the design of user-kindly extract masks. In addition to querying nutrient and pollutant contents of the individual residues, information on fields of application, periods of use, spreading techniques and classification in accordance with fertiliser types can also be extracted.