Response of some mineral content characteristics of young Olive tree leaves (cv. Arbequina) to spraying with Potassium and Chelated Iron

Raheem, Maryam Ismail; Hussein, Suzan Ali

doi:10.58928/ku26.17118

	Response of some mineral content characteristics of young Olive tree leaves (cv. Arbequina) to spraying with Potassium and Chelated Iron
Kirkuk University Journal for Agricultural Sciences (KUJAS)
Volume 17, Issue 1, March 2026, Pages 155-161 PDF (6.64 M)
Document Type: Research Paper
DOI: 10.58928/ku26.17118
Authors
Maryam Ismail Raheem¹; Suzan Ali Hussein^* ²
¹University of Kirkuk, Iraq / College of Agriculture
²Department of Horticulture and Landscape Design, College of Agriculture, University of Kirkuk, Iraq
Abstract
The study was conducted in olive orchard belonging to the College of Agriculture / University of Kirkuk, Iraq, located in the Sayyada area during the 2024 growing season to study the effect of spraying potassium at three concentrations (0, 1000 and 1500) mg L-1 and chelated iron at four concentrations (0, 100, 200 and 300) mg L-1 on some mineral content traits of the leaves of 4-year-old Arbequina olive trees. Spraying was carried out on three dates during the growing season, starting from 15/3 to 15/5, with a one-month interval between each spray. The results obtained can be summarized as follows: spraying with a concentration of 1500 mg L-1 of potassium significantly influenced the levels of macronutrients NPK, carbohydrates, and protein in the leaves, which reached (3.63, 0.72, 5.43, 6.10, 22.66)% respectively. Meanwhile, concentrations of 1000 and 1500 mg L-1 of potassium had a significant effect on the iron content of the leaves, which reached (131.44 and 132.86) mg kg-1 respectively. Spraying with chelated iron at concentrations of 200 and 300 mg L-1 led to a significant increase in the nitrogen and protein in the leaves, which reached (3.57, 3.73 and 22.34, 22.33)% respectively. As for the spraying with a concentration of 300 mg L-1 of chelated iron, it significantly affected the increase in the percentages of phosphorus, potassium, iron, and carbohydrates in the leaves, reaching (0.69%, 5.29%, 135.03 mg kg-1, 6.60%) respectively. The interaction between the concentrations of the studied factors had a significant effect on improving the studied traits
Keywords
K2SO4 ، Fe-EDDHA ، Olive ، Olea europaea L; Arbequina

References
[1]. Olias, J.M. and Garcia, J.M. (1997). Olive In Postharvest physiology and sub-tropical fruits (Mitra,S,ed). AB International, Oxford, England, pp: 229-243. [2]. Vavilov, N.I. (1951). Phytogeographic basis of plant breeding the origin,variation,immunity and breeding of cultivated plants.chronica botanica,13:1-366. [3]. Ali, N.El-D.Sh. (2012). The Guide to Plant Nutrition. Translated, Part One, Dar Al-Kutub Al-Ilmiyah for Printing, Publishing, and Distribution, University of Baghdad, Ministry of Higher Education and Scientific Research. [4]. Devlin, R. M. and F. H. Witham (2011). Plant Physiology. Translated by: Sharaki, Mohamed Mahmoud, Abdul Hadi Khadr, Ali Saad al-Din Salama, and Nadia Kamel. Arab House for Publishing and Distribution, third edition, Cairo, Egypt. [5]. Abdel Aal, K.A.D., S.A.F. Hassan, Y.M. Hafiz and M.M. Salem (2013). Fundamentals of Plant Physiology. Faculty of Agriculture, Kafr El Sheikh University, Egypt. [6]. Al-Zubaidi, A. A. (2003). The effect of spraying and aerial application of urea and potassium on the vegetative and fruit characteristics and the compounds Methoxalin and Saponin in olives. Master's thesis, College of Agriculture, University of Baghdad, Iraq. [7]. Sarrwy, S.M.A., E.A. Mohamed and H.S.A. Hassan (2010). Effect of foliar sprays with Potassium nitrate and Mono-Potassium Phosphate on leaf mineral contents, fruit set, yield and fruit quality of Picual Olive Trees grown under sandy soil conditions. American-Eurasian J. Agric. and Environ, 8(4): 420-430. [8]. Gowda, A.M., H.A.M. Ali and T.Kh. El-Bolok (2022). Effect of Foliar Spraying with Different Sources of Potassium on Growth, Leaf Mineral Composition, Yield and Fruit Quality of Picual Olive Trees. Egyptian Journal of Horticulture, 49 (1): 103-114. [9]. Al-Sahaf, F. H. (1989). Applied Plant Nutrition. Ministry of Higher Education and Scientific Research, University of Baghdad, House of Wisdom, Mosul Press, Iraq. [10]. Al-Naimi, S. N. A. (2000). Principles of Plant Nutrition (Translator).National Library institution for printing and publishing. University of Mosul.2nd edition. Iraq. pp: 772. [11]. Alalam, A.T. S. and A.H.E. Alalaf (2020). Response of the olive seedlings of manzanillo variety to foliar spray with some growth stimuli. Plant Cell Biotechnology and Molecular Biology, 21(41&42):27-34. [12]. Hussein, S.A., M.A. Lateef and R.A. Al-Qady (2021). The effect of foliar application of Iron, Chelated Zink, And Gibberellin on Some of the Vegetative Growth Parameters of Olive Seedlings Cultivar (Sorani). International Journal of Agricultural and Statistical Sciences, 17(1): 1497-1502. [13]. Hussein, S.A. (2024). Response of Young grapevines (Kishmishi cultivar) to Spraying by Iron Chelated and the growth regulator benzyl adenine. Tikrit Journal for Agricultural Sciences, 24(3): 13-23. [14]. SAS (2001). Statistical Analysis System. SAS Institute Inc. Cary, Nc. USA. [15]. Roger, M.R.N.C. and A.M. Hasted (2003). Statistical Methods in Agriclture and Experimental Biology Champan. Hall, CRC, A CRC Press Co., Washington, D. C. [16]. Johnson, C. M. and A. Ullrich (1959). Analytical Method for Use in Plant Analysis Bulletin 766. University of California Agriculture Experiment station, Berkeley CA. [17]. A.O.A.C. (1980). Official methods of analysis 13th of association of ficial analytical chemists – Washington,dc. [18]. Estefan, G., R. Sommer and J. Ryan (2013). Methods of soil, plants, and water analysis, ICARDA , International for Agriculture Research in the Dry Areas, third edition ICARDA @ cigar.org www.icarda.org. [19]. Dubois, M., K.A. Gilles, L.K. Hamilton, P.A. Rebers and F. Smith (1956). Colorimetric method for determination of sugars and related substanccs. Anal. Chcm., 28(3): 350-6. [20]. Haynes, R.J. (1980). A Comparison of two modified kjeldhal digestion techniques for Multi- element plant analysis with conventional wet and dry ashing methods . Comm. Soil .Sci. Plant Analysis .11(5): 459-467. [21]. Havlin, J.L., J.D. Beaton, S.L. Tisdale and W.L. Nelson (2005). Soil fertility and fertilizers , in an introduction to nutrient management , 6th ed. Prentic Hall, New Jersey: 199-218. [22]. Najem, A.W.Y., A.H.A. Hadi and M.S. Khadr (1997). Facts about Potassium. Agricultural Research Center, Ministry of Agriculture and Land Reclamation, Arab Republic of Egypt. [23]. Yang, X.E., X. Liu, W.M. Wang, Z.Q. Ye and A.C. Luo (2004). Potassium Internal use efficiency relative to growth vigor. Potassium distribution, and carbohydrate allocation in rice genotypes. Journal of Plant Nutrition, 27(5). [24]. Allen, V.B. and J.P. David (2006). Handbook plant nutrition. Taylor and Francis Group. [25]. Ismail, A.A. and A.S.K. Ghazai (2012). Response of olive seedlings to the addition of seaweed extract to the soil and foliar feeding with magnesium and fenugreek seed extract for foliar spray. Iraqi Journal of Agricultural Sciences. 43 (2): 119-131. [26]. Hussein, S.A. (2023). Role of Decomposed animal manure and humic acid in improving the vegetative growth and mineral content of young Olive trees Cv. Sourany. Al-Azhar Journal of Agricultural Research, 48 (3): 51-57. [27]. Azeez, D.R., R.A. Medan and S.A. Hussein (2017). Effect of foliar application of chelated calcium and boron on growth and yield of strawberry (Fragaria ananassa Duch.) CV. Festival. Kirkuk University Journal for Agricultural Sciences, Supplement to Volume 8: 77-86.
Statistics Article View: 183 PDF Download: 74