Relationship Between Some Thermodynamic Properties and Yield Parameters of Oil Palm in an Ultisol

Efosa, Osayande Pullen; Robert, Orhue Ehi; James, O. Ehigiator

doi:10.3923/ecologia.2020.71.77

Cited by 3 publications

(4 citation statements)

References 6 publications

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“…The increase in moisture content with increased soil depth as observed in this study could be attributed to the high sandy nature of the top soils and the high content of iron and aluminium oxides encountered while siting the profile pits. This has earlier been reported by Tesfahunegn et al 12 and Efosa et al 13 , who stated that the soils are generally sandy with high water percolation rates within the profiles with high content of iron and aluminium oxides in the sub soils of NIFOR main station. Moisture content was highest with lower rates of fertilizer application.…”

Section: Discussionsupporting

confidence: 75%

Effects of Some Inorganic Fertilizers on Soil Properties and Leaf Nutrient Contents of Oil Palm at NIFOR Main Station

Osayande,

Oviasogie

2024

Trends Appl. Sci. Res

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Background and Objective:The uptake of chemical nutrients by oil palm for bunch production is influenced by physical properties such as bulk density, texture and moisture content of the soils and some climatic variables like rainfall, temperature and solar radiation. The objective was to examine the influence of these properties and some climatic variables on the weight and number of harvested bunches. Materials and Methods:The experiment was laid out in a Randomized Complete Block Design (RCBD) and consisted of soil sampling using AfSIS protocol and cores of known volume. Frond leaf 17 was also sampled while climatic variables were obtained from the Statistics Division of the Nigerian Institute for oil palm. Research data generated were subjected to One-way Analysis of Variance (ANOVA) using Genstat statistical software at a 5% level of probability. Results: The except for soil pH and moisture content, the applied fertilizers had no direct effects on soil chemical properties. Person's correlation analysis showed a relationship between leaf nitrogen and solar radiation; bunch weight and number of harvested bunches as well as bunch organic matter content of the soils. Conclusion: Though the applied inorganic fertilizers had no direct effects on soil chemical properties, they however improved soil moisture content and uptake of nitrogen as revealed by leaf total N.

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Section: Discussionsupporting

confidence: 75%

Effects of Some Inorganic Fertilizers on Soil Properties and Leaf Nutrient Contents of Oil Palm at NIFOR Main Station

Osayande,

Oviasogie

2024

Trends Appl. Sci. Res

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“…There was also a correlation between the number of harvested bunches and the bunch weight of the palms. In an earlier study of the same soils, Efosa et al 1 found a relationship by means of simple regression analysis between the labile K content of the soils and the potential buffering capacity with respect to K (PBC K ) with a number of harvested bunches but not with the bunch weight. It, therefore, follows that inadequate K in Ultisols under oil palm may result in a reduced number of harvested bunches but not necessarily in weight since the NIFOR hybrid tenera palms derived from extension work seeds (EWS) are able to utilize the less readily soluble form of K for its K nutritional requirement.…”

Section: Discussionmentioning

confidence: 96%

“…Potassium is the most required element for bunch production in oil palm 1 . Its extraction is usually by ammonium acetate buffered at pH 7.…”

Section: Introductionmentioning

confidence: 99%

“…More studies on K nutrition have revealed that plants are able to use other forms of K to maintain their nutritional requirements 4 . This is mostly common in soils under tree crop cultivation like oil palm and shea tree 1 where potassium requirement is usually on a continuous with a constant drain on reserve potassium of the soils. It, therefore, follows that exchangeable potassium alone cannot adequately measure the potassium requirement of crops 5 .…”

Section: Introductionmentioning

confidence: 99%

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Potassium Dynamics and Relationships with Oil Palm Bunch Yields in Ultisols of NIFOR Main Station

Osayande,

Robert,

Obasogie

2024

Trends Agric. Sci

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Background and Objective: Potassium is the most utilized element by oil palm for bunch production. It is labile and exists in four major forms that are in equilibrium with one another. It is important to know the form of K that correlates more with the bunch yield of oil palm. The objective of the study was to determine the most dynamic form of K that correlates with bunch yields of oil palm in an Ultisol. Materials and Methods: Potassium forms and dynamics and their relationships with fresh fruit bunch yields were studied in soils sampled from profile pits, accurately labelled, processed and analyzed for physical and chemical properties and forms of potassium using standard laboratory methods. Activities of potassium, calcium and magnesium were determined from their respective activity coefficients which in turn were determined from the extended Debye and Huckel equation. Results: The HNO 3 extractable K was the most dynamic form of K and constituted 31.95% of total K reserves bunch weight was significantly and positively correlated with HNO 3 extractable K (difficultly exchangeable K) with r = 0.943, p<0.01), residual K (r = 0.924, p<0.01); potassium activity coefficient (r = 0.834, p<0.01); calcium activity coefficient (r = 0.827, p<0.05) and calcium activity (r = 0.867, p<0.05). Bunch weight also correlated positively and significantly with the number of harvested bunches with (r = 0.902, p<0.05). Conclusion: It highlighted the need to manage the organic matter, nitrogen, potassium and calcium contents of Ultisols under oil palm by deliberate application of empty fruit bunches (EFB) to increase the total K reserve of the soil.

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Soil Arthropods Diversity in Three Land Types and Growth Parameters of Oil Palm Nursery Seedlings

Charlee,

Efosa,

Aneni

et al. 2023

Asian J. of Agricultural Research

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Relationship Between Some Thermodynamic Properties and Yield Parameters of Oil Palm in an Ultisol

Cited by 3 publications

References 6 publications

Effects of Some Inorganic Fertilizers on Soil Properties and Leaf Nutrient Contents of Oil Palm at NIFOR Main Station

Effects of Some Inorganic Fertilizers on Soil Properties and Leaf Nutrient Contents of Oil Palm at NIFOR Main Station

Potassium Dynamics and Relationships with Oil Palm Bunch Yields in Ultisols of NIFOR Main Station

Soil Arthropods Diversity in Three Land Types and Growth Parameters of Oil Palm Nursery Seedlings

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