Nitrogen turnover in the soil-crop system; comparison of fourteen simulation models.- NQuantitative aspects of nitrogen nutrition in crops.- Modelling of the nitrogen cycle in farm land areas.- Nitrate leaching and soil moisture prediction with the LEACHM model.- Nitrate leaching and soil moisture prediction with the LEACHM model.- Some results of nitrogen simulations with the model ANIMO.- The distribution of water and nitrogen in the soil-crop system: a simulation study with validation from a winter wheat field trial.- Modelling water flow, nitrogen transport and root uptake including physical non-equilibrium and optimization of the root water potential.- Modelling water flow, nitrogen transport and root uptake including physical non-equilibrium and optimization of the root water potential.- Simulation of nitrogen dynamics and biomass production in winter wheat using the Danish simulation model DAISY.- Simulation of the nitrogen balance in the soil and a winter wheat crop.- Modelling nitrogen dynamics in a plant-soil system with a simple model for advisory purposes.- Simulation of nitrogen in soil and winter wheat crops: modelling nitrogen turnover through organic matter.- Simulation of nitrogen in soil and winter wheat crops: modelling nitrogen turnover through organic matter.- Simulation of nitrogen in soil and winter wheat crops: a management model that makes the best use of limited information.- Modelling water flow, nitrogen uptake and production for wheat.- WHNSIM - a soil nitrogen simulation model for Southern Germany.- A comparison of the performance of N simulation models in the prediction of Nmin on farmers' fields in the spring.- Response of wheat to nitrogen fertilization, a data set to validate simulation models for nitrogen dynamics in crop and soil.- List of participants.