Article (Scientific journals)
Assessing and modeling economic and environmental impact of wheat nitrogen management in Belgium
Dumont, Benjamin; Basso, Bruno; Bodson, Bernard et al.
2016In Environmental Modelling and Software, 79, p. 184-196
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Keywords :
Tactical nitrogen management; Climatic variability; Probability risk assessment; LARS-WG; Crop model; STICS
Abstract :
[en] Future progress in wheat yield will rely on identifying genotypes and management practices better adapted to the fluctuating environment. Nitrogen (N) fertilization is probably the most important practice impacting crop growth. However, the adverse environmental impacts of inappropriate N management (e.g., lixiviation) must be considered in the decision-making process. A formal decisional algorithm was developed to tactically optimize the economic and environmental N fertilization in wheat. Climatic uncertainty analysis was performed using stochastic weather time-series (LARS-WG). Crop growth was simulated using STICS model. Experiments were conducted to support the algorithm recommendations: winter wheat was sown between 2008 and 2014 in a classic loamy soil of the Hesbaye Region, Belgium (temperate climate). Results indicated that, most of the time, the third N fertilization applied at flag-leaf stage by farmers could be reduced. Environmental decision criterion is most of the time the limiting factor in comparison to the revenues expected by farmers.
Disciplines :
Computer science
Agriculture & agronomy
Environmental sciences & ecology
Author, co-author :
Dumont, Benjamin  ;  Université de Liège > Agronomie, Bio-ingénierie et Chimie (AgroBioChem) > Phytotechnie des régions tempérées
Basso, Bruno;  Michigan State University > Geological Sciences
Bodson, Bernard ;  Université de Liège > Agronomie, Bio-ingénierie et Chimie (AgroBioChem) > Phytotechnie des régions tempérées
Destain, Jean-Pierre ;  Université de Liège > Agronomie, Bio-ingénierie et Chimie (AgroBioChem) > Phytotechnie des régions tempérées
Destain, Marie-France ;  Université de Liège > Ingénierie des biosystèmes (Biose) > Agriculture de précision
Language :
English
Title :
Assessing and modeling economic and environmental impact of wheat nitrogen management in Belgium
Publication date :
08 February 2016
Journal title :
Environmental Modelling and Software
ISSN :
1364-8152
Publisher :
Elsevier Science
Volume :
79
Pages :
184-196
Peer reviewed :
Peer Reviewed verified by ORBi
Name of the research project :
Suivi en temps réel de l’environnement d’une parcelle agricole par un réseau de micro-capteurs en vue d’optimiser l’apport en engrais azotés
Funders :
SPW DG03-DGARNE - Service Public de Wallonie. Direction Générale Opérationnelle Agriculture, Ressources naturelles et Environnement [BE]
Available on ORBi :
since 19 March 2016

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