This project is funded by the innovation program of the Federal Ministry of Food and Agriculture (BMEL), funding agency is the Federal Office for Agriculture and Food (BLE). Collaborative project: Development of a low-priced miniaturized mid-infrared (MIR)-Sensor for integrated area-wide slurry management According to the guideline of the BMEL about promoting innovations in agricultural engineering, the project aims to develop low-priced miniaturized mid-infrared (MIR)-Sensors as well as the accompanying control technology and a data infrastructure for the realization of an area-wide slurry management. With the project, the targeted use of the natural resource slurry can be improved and eutrophication avoided. Thus, a sustainable agriculture is achieved. With the online analysis and the created data infrastructure, the increasing requisitions for the farmers, e.g. the pending changes in the Düngeverordnung, can be relieved. The promotion areas 'technology and environmentally sound land management” and 'improvements of the framework conditions for innovations” are covered.