Simulating the spatial variation of soil mineral N within fields using the model SUNDIALBaxter, 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. Full text not archived in this repository. It is advisable to refer to the publisher's version if you intend to cite from this work. See Guidance on citing. Abstract/SummaryVariable 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.
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