Effects of Plant Nutrients on Oil Content and Oil Quality of Peanut

Year 2025, Volume: 30 Issue: 2, 328 - 338, 28.12.2025

Cenk Burak Şahin

https://doi.org/10.17557/tjfc.1773975

Abstract

Plant nutrients are essential for plant physiology, although they are required in small quantities. Along with detecting nutrient shortages, it is crucial to study the varied impacts of nutrients such as iron, sulfur, and selenium. This study specifically investigated the combined effects of iron, sulfur, and selenium fertilizers on the oil content and oil quality factors of peanuts (Arachis hypogaea L.). The study was conducted in the Eastern Mediterranean of Türkiye in 2021 and 2022, using a split-splitplot design with three replications. The treatments of Fe (0% and 3%) were assigned to the main plots, S (0, 40, and 60 kg ha−1) to the sub-plots, and Se (0, 20, and 40 ppm) to the sub-sub-plots. Oil content was not significantly affected by the fertilizer treatments, and the maximum values were obtained from the applications of 40 kg sulfur per hectare and 20 ppm selenium. Regarding the Oleic/Linoleic acids ratio, an important indicator of oil quality, the highest values were observed in the treatments of 40 to 60 kg sulfur per hectare and 20 to 40 ppm selenium. In conclusion, iron application had no significant effect, while the application of 40 to 60 kg ha⁻¹ sulfur and 20 to 40 ppm selenium could improve the quality of peanut oil, as indicated by a low iodine value (IV) and high oleic acid content and O/L ratio.

Keywords

Groundnut , Iron , Oil , Selenium , Sulfur

Thanks

The author is thankful to Dr. Mustafa Yilmaz for his assistance, to Dr. Merve Olukman Şahin for being in the author's life, and to Deniz Burak Şahin for sacrificing his playtime. The people who passed away in the earthquake that occurred on February 6, 2023, in Türkiye, will always be remembered. The author has no conflicts of interest to declare. The author agrees with the contents of the manuscript, and there is no financial interest to report.

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