Specific leaflet mineral concentrations of high-yielding oil palm progenies and their implications for K/Mg management
Olivier Senankpon Dassou1,2, Adolphe Adjanohoun1, Wouter Vanhove2, Reinout Impens3, Hervé Aholoukpè1, Xavier Bonneau4, Albert Flori5, Bénoît Cochard6, Sinsin Brice7, Patrick Van Damme8,2, Jean Ollivier4
1CRA-PP / INRAB, Agricultural Research Centre on Perennial Plants of the National Agricultural Research Institute of Benin, Benin
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.
Keywords: Leaflet magnesium (Mg) concentration, leaflet potassium (K) concentration, nutrient diagnosis, nutrient management, oil palm, optimum leaflet mineral concentrations
Contact Address: Olivier Senankpon Dassou, CRA-PP / INRAB, Agricultural Research Centre on Perennial Plants of the National Agricultural Research Institute of Benin, BP 01, Pobè, Benin, e-mail: mandas.olivergmail.com