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  Year: 2020 | Volume: 10 | Issue: 2 | Page No.: 71-77
DOI: 10.3923/ecologia.2020.71.77
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Relationship Between Some Thermodynamic Properties and Yield Parameters of Oil Palm in an Ultisol
Osayande Pullen Efosa , Orhue Ehi Robert and O. Ehigiator James

Background and Objective: Elaeis guineensis Jacq commonly known as oil palm is considered as one of the most important source for oil production globally. The relationship between some thermodynamic properties (Potential Buffering Capacity to potassium (PBCK), Labile K, activity ratios) and yield parameters (number and weight of fresh fruit bunches) of oil palm in an Ultisol was evaluated at the Nigerian institute for oil palm research (NIFOR) main station to determine which thermodynamic parameter are require to manage for yield improvement in oil palm. Materials and Methods: Potential buffering capacity with respect to potassium (PBCK) and Labile K were obtained from linearised isotherms obtained after equilibrating 2.5 g of the soils in 0.01M CaCl2 at a temperature of 25+1°C for 24 h. Activity ratios of potassium (ARK) were computed from aK/(aCa+aMg)1/2 while yield parameters averaged over a 15 year period from field 14 at NIFOR main station from which the soil samples were obtained were related to these parameters by simple linear regression models. Results: Results showed that 73.1% of the total variations in number of bunches of oil palm were accounted for by the Labile K content of the soils while 53.0% of the variations in number of bunches could only be accounted for by the PBCK. Conclusion: The study concludes that the lack of relationship between activity ratios and oil palm yield parameters shows that potassium fertilization made to improve yield of oil palm does not necessarily need to be made in consideration with Ca and Mg minerals.
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How to cite this article:

Osayande Pullen Efosa, Orhue Ehi Robert and O. Ehigiator James, 2020. Relationship Between Some Thermodynamic Properties and Yield Parameters of Oil Palm in an Ultisol. Ecologia, 10: 71-77.

DOI: 10.3923/ecologia.2020.71.77








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