Fertilizer research

, Volume 27, Issue 2–3, pp 245–259 | Cite as

Simulation of nitrogen dynamics and biomass production in winter wheat using the Danish simulation model DAISY

  • S. Hansen
  • H. E. Jensen
  • N. E. Nielsen
  • H. Svendsen


A dynamic simulation model for the soil plant system is described. The model includes a number of main modules, viz., a hydrological model including a submodel for soil water dynamics, a soil temperature model, a soil nitrogen model including a submodel for soil organic matter dynamics, and a crop model including a submodel for nitrogen uptake. The soil part of the model has a one-dimensional vertical structure. The soil profile is divided into layers on the basis of physical and chemical soil characteristics. The simulation model was used to simulate soil nitrogen dynamics and biomass production in winter wheat grown at two locations at various levels of nitrogen fertilization. The simulated results were compared to experimental data including concentration of inorganic nitrogen in soil, crop yield, and nitrogen accumulated in the aboveground part of the crop. Based on this validation it is concluded that the overall performance of the model is satisfactory although some minor adjustments of the model may prove to be necessary.

Key words

Simulation model crop production soil water dynamics soil nitrogen dynamics winter wheat 


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Copyright information

© Kluwer Academic Publishers 1991

Authors and Affiliations

  • S. Hansen
    • 1
  • H. E. Jensen
    • 1
  • N. E. Nielsen
    • 1
  • H. Svendsen
    • 1
  1. 1.Section of Soil and Water and Plant Nutrition, Department of Agricultural SciencesThe Royal Veterinary and Agricultural UniversityFrederiksberg C, CopenhagenDenmark

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