Specific leaflet mineral concentrations of high-yielding oil palm progenies and their implications for K/Mg management

Dassou Senankpon Olivier, Adjanohoun Adolphe, Vanhove Wouter, Impens Reinout, Aholoukpe Hervé, Bonneau Xavier, Flori Albert, Cochard Benoît, Sinsin Brice Augustin, Van Damme Patrick, Ollivier Jean. 2022. Specific leaflet mineral concentrations of high-yielding oil palm progenies and their implications for K/Mg management. In : Tropentag 2022: Can agroecological farming feed the world? Farmers' and academia's views. Book of abstracts. Tielkes Eric (ed.). ATSAF, CZU. Witzenhausen : DITSL, Résumé, p. 61. ISBN 978-3-7369-7671-9 Tropentag 2022, Prague, République tchèque, 14 Septembre 2022/16 Septembre 2022.

Matériel d'accompagnement : 1 poster

Résumé : In oil palm, a similar fertilisation regime can result in leaflet potassium and magnesium concentrations that vary significantly from one progeny to another. This hinders the development of standardised fertiliser recommendations for this crop, as they are usually calculated to reach optimum leaflet nutrient concentrations. We tested the hypothesis that optimum leaflet K and Mg concentrations significantly differ between different oil palm progenies. Four high-yielding oil palm progenies with contrasting leaflet K and Mg concentrations (C1, C2, and C3 of Deli × La Mé origin and C4 of Deli × Yangambi origin) were treated with combinations of three levels of KCl and MgSO4, in a completely randomised split-plot factorial design with six replicates, where progenies were a sub-factor. For a given level of KCl or MgSO4, different leaflet K and Mg concentrations were found between progenies (

Auteurs et affiliations

• Dassou Senankpon Olivier, CIRAD-PERSYST-UMR ABSys (FRA)
• Adjanohoun Adolphe, INRAB (BEN)
• Vanhove Wouter, Ghent University (BEL)
• Impens Reinout, Presco Plc (NGA)
• Aholoukpe Hervé, INRAB (BEN)
• Bonneau Xavier, CIRAD-PERSYST-UMR ABSys (FRA)
• Flori Albert, CIRAD-PERSYST-UMR ABSys (FRA)
• Cochard Benoît, PalmElit (FRA)
• Sinsin Brice Augustin, UAC (BEN)
• Van Damme Patrick, Ghent University (BEL)
• Ollivier Jean, CIRAD-PERSYST-UMR ABSys (FRA)

Source : Cirad-Agritrop (https://agritrop.cirad.fr/603985/)

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