Modelling, nitrogen dynamics in sugarcane systems: Recent advances and applications

Thorburn, P. J., Meier, E. A. and Probert, M. E. (2005) Modelling, nitrogen dynamics in sugarcane systems: Recent advances and applications. Field Crops Research, 92 2-3: 337-351. doi:10.1016/j.fcr.2005.01.016

Author Thorburn, P. J.
Meier, E. A.
Probert, M. E.
Title Modelling, nitrogen dynamics in sugarcane systems: Recent advances and applications
Journal name Field Crops Research   Check publisher's open access policy
ISSN 0378-4290
Publication date 2005
Sub-type Article (original research)
DOI 10.1016/j.fcr.2005.01.016
Volume 92
Issue 2-3
Start page 337
End page 351
Total pages 15
Place of publication Amsterdam
Publisher Elsevier Science Bv
Collection year 2005
Language eng
Subject C1
0703 Crop and Pasture Production
Abstract Substantial amounts of nitrogen (N) fertiliser are necessary for commercial sugarcane production because of the large biomass produced by sugarcane crops. Since this fertiliser is a substantial input cost and has implications if N is lost to the environment, there are pressing needs to optimise the supply of N to the crops' requirements. The complexity of the N cycle and the strong influence of climate, through its moderation of N transformation processes in the soil and its impact on N uptake by crops, make simulation-based approaches to this N management problem attractive. In this paper we describe the processes to be captured in modelling soil and plant N dynamics in sugarcane systems, and review the capability for modelling these processes. We then illustrate insights gained into improved management of N through simulation-based studies for the issues of crop residue management, irrigation management and greenhouse gas emissions. We conclude by identifying processes not currently represented in the models used for simulating N cycling in sugarcane production systems, and illustrate ways in which these can be partially overcome in the short term. (c) 2005 Elsevier B.V. All rights reserved.
Keyword Apsim
Nitrate Leaching
Greenhouse Gas
Q-Index Code C1

Document type: Journal Article
Sub-type: Article (original research)
Collections: 2006 Higher Education Research Data Collection
School of Agriculture and Food Sciences
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Citation counts: TR Web of Science Citation Count  Cited 46 times in Thomson Reuters Web of Science Article | Citations
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Created: Wed, 15 Aug 2007, 06:09:15 EST