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Simulating the spatial variation of soil mineral N within fields using the model SUNDIAL

Baxter, S. J., Oliver, M. A., Gaunt, J. and Glendining, M. J. (2003) Simulating the spatial variation of soil mineral N within fields using the model SUNDIAL. In: 4th European Conference on Precision Agriculture, Berlin, Germany, pp. 75-80.

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Abstract/Summary

Variable rate applications of nitrogen (N) are of environmental and economic interest. Regular measurements of soil N supply are difficult to achieve practically. Therefore accurate model simulations of soil N supply might provide a practical solution for site-specific management of N. Mineral N, an estimate of N supply, was simulated by the model SUNDIAL (Simulation of Nitrogen Dynamics In Arable Land) at more than 100 locations within three arable fields in Bedfordshire, UK. The results were compared with actual measurements. The outcomes showed that the spatial patterns of the simulations of mineral N corresponded to the measurements but the range of values was underestimated.

Item Type:Conference or Workshop Item (Paper)
Divisions:Faculty of Science > School of Archaeology, Geography and Environmental Science
Interdisciplinary centres and themes > Soil Research Centre
ID Code:3234
Uncontrolled Keywords:mineral N spatial variation model simulation SUNDIAL
Additional Information:
Publisher:Wageningen Academic Publishers

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