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. Yield and nitrogen losses in oil palm plantations: Main drivers and management trade-offs determined using simulation. Field Crops Research, 210 : 20-32.

Quartile : Q1, Sujet : AGRONOMY

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.

Mots-clés Agrovoc : Elaeis guineensis, rendement des cultures, perte, plantations, modèle de simulation, impact sur l'environnement, évaluation de l'impact, efficacité, teneur en azote, efficacité d'utilisation, physiologie de la nutrition, modélisation environnementale, émission atmosphérique, oxyde nitreux, facteur de risque, conditions météorologiques, pratique culturale, fertilisation, engrais minéral, drainage, fertilité du sol

Mots-clés géographiques Agrovoc : Papouasie-Nouvelle-Guinée

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
F61 - Physiologie végétale - Nutrition
F08 - Systèmes et modes de culture

Champ 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) ORCID: 0000-0001-6686-8468

Source : Cirad-Agritrop (https://agritrop.cirad.fr/584851/)

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