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Comparison of nutrient uptake between true 3-dimensional simulation and an averaged root system model

Leitner, D., Schnepf, A., Klepsch, S. and Roose, T. (2010) Comparison of nutrient uptake between true 3-dimensional simulation and an averaged root system model Plant Biosystems, 144, (2), pp. 443-447. (doi:10.1080/11263501003726334).

Record type: Article


We present a new numerical approach describing nutrient uptake in three dimensions. Dynamic boundary conditions are considered at the individual root surfaces within a root system. As an example, we compare the three-dimensional simulation results of phosphate uptake by a young maize root system to the corresponding effective solution. We show that the two solutions are similar concerning phosphate uptake and the size of the depletion zones. The presented approach makes it possible to verify simplifications that are made in the development of effective models. Furthermore, it is possible to extend existing models by including spatial heterogeneities that will increase our understanding of rhizosphere processes.

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Published date: 9 May 2010
Keywords: mathematical modelling, phosphate depletion, nutrient uptake, comsol multiphysics, three-dimensional simulation


Local EPrints ID: 184643
ISSN: 1126-3504
PURE UUID: 7ceec1b2-488e-4fff-be65-6a086ae9717c

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Date deposited: 09 May 2011 08:36
Last modified: 18 Jul 2017 11:51

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Author: D. Leitner
Author: A. Schnepf
Author: S. Klepsch
Author: T. Roose

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