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Yield and nitrogen losses in oil palm plantations: Main drivers and management trade-offs determined using simulation

Yield and nitrogen losses in oil palm plantations: Main drivers and management trade-offs determined using simulation. Pardon Lénaïc, Huth Neil, Netelenbos Nelson Paul, Banabas Murom, Gabrielle Benoît, Bessou Cécile. 2017. Field Crops Research, 210 : 20-32.
http://dx.doi.org/10.1016/j.fcr.2017.05.016

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Article de revue ; Article de recherche ; Article de revue à facteur d'impact

Résumé : Oil palm cultivation has environmental impacts, including those associated with nitrogen (N) losses. Improving management practices to optimise yield and N losses is critical. In order to identify the key management and site parameters driving yield and N losses, over a 25-year cycle, we undertook a Morris's sensitivity analysis of the Agricultural Production Systems sIMulator oil palm model (APSIM-Oil palm), using 3 sites in Papua New Guinea. We selected 12 parameters and 3 outputs: yield, nitrous oxide (N2O) emissions and N leaching. The influence of the 12 parameters on the outputs depended on site characteristics, age of the palms, and climate. The most influential parameters for losses were N mineral fertiliser rate, drainage and fraction of legume in groundcover vegetation. The simulations suggested that APSIM-Oil palm is a useful tool for assessing management options for optimising yield and environmental outcomes in different environments. The results can also guide future measurements needed to improve N loss estimates, and further development of models and risk indicators. (Résumé d'auteur)

Mots-clés Agrovoc : Elaeis guineensis

Mots-clés libres : Agricultural Production Systems sIMulator (APSIM) ; Morris sensitivity analysis ; Perennial crop ; Environmental impact ; Nutrient use efficiency

Classification Agris : F01 - Culture des plantes
F04 - Fertilisation
P33 - Chimie et physique du sol

Axe stratégique Cirad : Axe 1 (2014-2018) - Agriculture écologiquement intensive

Auteurs et affiliations

  • Pardon Lénaïc, CIRAD-PERSYST-UPR Systèmes de pérennes (FRA)
  • Huth Neil, CSIRO (AUS)
  • Netelenbos Nelson Paul, James Cook University (AUS)
  • Banabas Murom, PNGOPRA (PNG)
  • Gabrielle Benoît, AgroParisTech (FRA)
  • Bessou Cécile, CIRAD-PERSYST-UPR Systèmes de pérennes (FRA)

Source : Cirad-Agritrop

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