Optimal Fertilisation for Oil Palm (Elaeis guineensis Jacq.) Plantations: Conclusions from a Long-Term Fertiliser Trial in Nigeria

Bonneau Xavier, Impens Reinout, Dassou Olivier, Van Damme Patrick. 2018. Optimal Fertilisation for Oil Palm (Elaeis guineensis Jacq.) Plantations: Conclusions from a Long-Term Fertiliser Trial in Nigeria. In : Tropentag 2018: Global food security and food safety: the role of universities. Tielkes, E. (ed.). Weikersheim : Margraf Publishers GmbH, 229. ISBN 978-3-8236-1760-0 Tropentag 2018: Global Food Security and Food Safety: The role of Universities. 20, Gand, Belgique, 17 Septembre 2018/19 Septembre 2018.

Url - éditeur : http://www.tropentag.de / Url - éditeur : http://www.tropentag.de/2018/abstracts/posters/518.pdf

Matériel d'accompagnement : 1 poster

Résumé : With a yield potential of more than 8 tons of oil per hectare the African oil palm (Elaeis guineensis Jacq.) is the most productive oil crop in the world. Since 2006, oil palm is the major global source of vegetable oil and production is expected to continuously increase by at least 2 % per year until 2050 (Byerlee et al., 2017). Oil palm cultivation is limited to the humid tropics where it is one of the most profitable land-uses despite the large investment costs of plantation establishment. Fertilisation represents a major yield-impacting factor but is also the most costly input in the annual running cost of an oil palm plantation. As a perennial crop with a typical life-cycle of 25 years and a physiological lag effect of up to 3 years, it is essential to consistently optimise the fertilisation in the pursuit of high yields and greater sustainability. This paper presents the results from a long-term factorial fertiliser trial in Nigeria com-prising of 4 levels of potassium, 2 levels of magnesium and 2 levels of phosphor. The field was planted in 1997 with standard planting material for the region; the fertilisation protocol started in 2000 when the trees reached maturity. After 17 years of continuous implementation, a clear production response for K is observed which allows calculation of the economically optimal dosage. There are no significant effects from Mg and P, however. In addition, as a final conclusive study, the total standing biomass and its nutrient contents were also evaluated in 2018 and results presented.

Auteurs et affiliations

• Bonneau Xavier, CIRAD-PERSYST-UPR Systèmes de pérennes (IDN)
• Impens Reinout
• Dassou Olivier, INRAB (BEN)
• Van Damme Patrick, Ghent University (BEL)

Source : Cirad-Agritrop (https://agritrop.cirad.fr/590902/)

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