● P and K Soil testing and fertilization: U Rostock, LMS Agricultural Consulting Rostock,
● Nutrient dynamics and root growth: U Göttingen, Purdue U West Lafaette IN USA,
● Root growth: Purdue U West Lafaette IN USA, ZALF Müncheberg, U Rostock, U Georgia Griffin Campus GA USA
● Nutrient balances, P hazard to surface waters: BASF SE Limburgerhof, IGZ Grossbeeren, U Rostock
● Software development: N fertilization algorithm according to sensor measurement, rating app: U Rostock, Land-Data Eurosoft
● Development of specialty fertilizers, growth regulators and herbicides: BASF SE