This study was conducted in one of the private orchards in Al-Anbar Governorate / Republic of Iraq during the 2024 season, where 54 homogeneous date palm trees were selected, planted systematically at a distance of 9×9 meters. The experiment was designed as a complete randomized block design (RCBD) with three replications. The study included three factors: the addition of nano NPK fertilizer at concentrations of 0, 50, and 100 g per palm-1, a biostimulant at a concentration of 20 ml per liter, and spraying with seaweed extract at concentrations of 0, 1, and 2 ml liter-1. Statistical analysis results showed that the study factors achieved good results in vegetative growth and yield characteristics for the treated trees. The treatment with the biostimulant at a concentration of 20 ml per liter outperformed all treatments in terms of leaf chlorophyll content, which was 44.47 mg per 100 g of fresh weight, and the dry matter percentage in leaves, which was 56.78%. The average fruit weight was 10.81 g, and the total yield was 103.82 kg per palm. Meanwhile, the treatment with seaweed extract excelled in leaf area, measuring 3.116 m², and the percentage of carbohydrates, which was 18.47%. The results of the three-way interaction showed significant differences among the treatments, with the interaction treatment of nano fertilizer (100 g), the biostimulant (20 ml per liter), and seaweed extract (2 ml per liter) outperforming all other treatments for the studied traits.
Keywords: Date palm, Nano fertilization, Nano NPK, Biofertilizers, EM1، Effective microorganisms, Seaweed extracts. |
- Al-Hamdani, K. A. S., Majed, H. M., & Marwa, N. H. (2022). Date Palm (1st ed.). Tikrit University Press.
- Ibrahim, A. B. A. (2014). The Date Palm: History, Heritage, Food and Medicine. Isa Cultural Center.
- Central Statistical Organization. (2021). Dates Production Report. Annual Statistical Abstract. Ministry of Planning. Directorate of Agricultural Statistics. Department of Publishing and Public Relations. Baghdad. Iraq.
- Jassim, A. R. A. L., Muayyad, R. A. D., & Shamel, M. A. (2017). Date Palm Tree Service Technologies. University House for Printing, Publishing, and Translation, Ministry of Higher Education and Scientific Research, Iraq.
- Devi, O. R., Ojha, N., Laishram, B., Dutta, S., & Kalita, P. (2023). Roles of nano-fertilizers in sustainable agriculture and biosafety. Environment and Ecology, 41(1), 457-463.
- Elemike, E. E., Uzoh, I. M., Onwudiwe, D. C., & Babalola, O. O. (2019). The role of nanotechnology in the fortification of plant nutrients and improvement of crop production. Applied Sciences, 9(3), 499.
- Higa, T. (2006). An Earth Saving Revolution (English translation). Sunmark Publishers, Inc.
- Al-Falahy, T. H. R. (2021). Response of Kumquat (Fortunella margarita) transplants to foliar spray with bio-stimulator and GA3. IOP Conference Series: Earth and Environmental Science.
- Ahmed, F. F., & Morsy, M. H. (1999). New methods for measuring leaf area in different fruit species. Minia Journal of Agricultural Research and Development, 19, 97-105.
- Mackinney, G. (1941). Absorption of light by chlorophyll solution. Journal of Biological Chemistry, 140, 315–322.
- Arnon, D. I. (1949). Copper enzymes in isolated chloroplasts: Polyphenol oxidase in Beta vulgaris. Plant Physiology, 24, 1-15.
- Al-Ani, M. R. A. (1998). Study of the possibility of distinguishing the sex of palm trees in the seedling stage using electromigration of proteins and gibberellins-like substances (PhD thesis). College of Agriculture, University of Baghdad.
- Joslyn, M. A. (1970). Method in Food Analysis: Physical, Chemical, and Instrumental Methods of Analysis (2nd ed.). Academic Press.
- Al-Mohammadi, S. M., & Al-Mohammadi, F. M. (2012). Statistics and Experimental Design. Osama Publishing and Distribution House.
- Kumar, M., Dwivedi, R., Anand, A. K., & Kumar, A. (2014). Effect of nutrient on physicochemical characteristics of phalsa (Grewia subinaequalisC.) fruits. Global Journal of Biosciences and Biotechnology, 3, 320–323.
- Cheng, L., Leslie, H. F., & Patrick, J. B. (2010). Light absorption and partitioning in relation to nitrogen content in "Fuji" apple leaves. Oregon State University, Corvallis, OR.
- Abd, A. M., Altemimy, I. H., & Altemimy, H. M. (2020). Evaluation of the effect of nano-fertilization and disper osmotic in treating the salinity of irrigation water on the chemical and mineral properties of date palm (Phoenix dactylifera). Basrah Journal of Agricultural Sciences, 33(1), 68-88.
- Al-Jubouri, A. M. E. (2023). Evaluation of the efficiency of Super Micro Plus nano-fertilizer and the method of addition in some qualitative and productive characteristics of date palm, Al-Halawi variety (Master’s thesis, College of Agriculture, University of Karbala, Ministry of Higher Education and Scientific Research, Iraq).
- Al-Mohammadi, M. M., & Al-Dolaimi, R. M. (2024). The effect of adding Nano NPK fertilizer, EM1 biofertilizer, and spraying with algae extract on some growth characteristics and yield of date palm variety Khastawi. In IOP Conference Series: Earth and Environmental Science (Vol. 1371, No. 4, p. 042006). IOP Publishing.
- Adesemoye, A. O., & Kloepper, J. W. (2009). Plant-microbes interactions in enhanced fertilizer-use efficiency. Applied Microbiology and Biotechnology, 85, 1-12.
- Hasaballah, E. A., Hagagy, N. A. A., & Bedeer, D. A. (2020). Biological nutrition of tissue-cultured Barhi date palm offshoots in comparison with chemical nutrition. Annals of Agricultural Science, Moshtohor, 58(2), 305-314.
- Murugesh, K. A., & Hanmugam, S. R. (2021). Effect of bio-formulations on qualitative and quantitative traits of mulberry (Morus) under different seasons. Madras Agricultural Journal, 108(7-9), 1.
- Al-Jawari, A. R. K. S. (2002). The effect of spraying with different nutrients on the growth and yield of sweet pepper (Capsicum annuum) (Master’s thesis, College of Agriculture, University of Baghdad, Iraq).
- Murad, H. J., & Al-Dulaimy, A. F. (2021, November). Effects of spraying with urea and seaweed extract (Tecamin Algae) on growth and chemical content of date palm tree cv. Zahdi. In IOP Conference Series: Earth and Environmental Science (Vol. 904, No. 1, p. 012065). IOP Publishing.
- Thajil, M. M., & Blackt, R. T. M. A. (2022). Effect of nano and organic fertilizers on some vegetative growth characteristics of Phoenix dactylifera Khastawi. Journal of Kerbala for Agricultural Sciences, 9(2), 1-10.
- Hashim, M. S. (2022). Spraying with seaweed extract and its effect on the qualitative, chemical, and productive traits of date palm cultivars (Al-Halawi and Al-Sayer). Annals of Forest Research, 65(1), 4877-4885.
- Kurdy, A. T., & Al-Dulaimy, R. M. (2023). Effect of organic manure, nutrient solution injection, and Zn foliar application on some physical characteristics of date palm fruits cv. Zahdi. In IOP Conference Series: Earth and Environmental Science (Vol. 1225, No. 1, p. 012020). IOP Publishing.
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