Nutritional Behavior of Interspecific Hybrids (E. Oleifera x E. Guineensis) in Eastern Ecuador and Colombia
In the face of the progressive increase of lethal diseases affecting oil palm crop for more than two decades, cultivation of Interspecific Hybrids oxg has been inevitable in important areas of Colombia and Ecuador, and the planted areas keep growing. Palmeras del Ecuador and Hacienda La Cabaña have 5,670 and 3,650 hectares of hybrids oxg of Coari origin x Elaeis guineensis planted, respectively. For industrial scale management of this material, it has been necessary the identification of reference contents for nutritional control and fertilization. As with E. guineensis, the experimental method consists in establishing relationships between foliar contents and fertiliser dosage. This method provides the most stringent pathway for rapidly obtaining the critical levels for the major elements. This paper uses the results of two factorial devices set up in contrasted soil conditions and climate, with the aim of obtaining the first standards that can help in the diagnosis of industrial blocks based on results from foliar analyses. For N and K, the effect of age on the evolution of contents is less marked than on E. guineensis, and generally, lower optimum contents in adult crops should be accepted. The correlation between N and P contents is very marked and a linear regression similar to the one established for E. guineensis may serve as a model to balance the two elements. The reference foliar contents for Mg and Cl can be considered equivalent to those of E. guineensis. Conclusions were established based on a mix of codes representative of the Coari x La Me source, but the trials and field observations indicate that there are wide variations within the oxg material. It will be necessary, in the future, to distinguish the vegetable material for certain elements such as magnesium.
| Main Authors: | , , |
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| Format: | Digital revista |
| Language: | spa |
| Published: |
Fedepalma
2013
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| Online Access: | https://publicaciones.fedepalma.org/index.php/palmas/article/view/10692 |
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