[1]. Zadoo, S. N., Roy, R. P., & Khoshoo, T. N. (1976). Cytogenetics of cultivated bougainvilleas VII: Origin and evolution of ornamental taxa. Indian journal of Horticulture, 33(3and4), 278-288.
[2]. Rasul, A. T., Ak, B. E., & Hatipoğlu, İ. H. (2021, September). Some Bougainvillea Species and Characteristics and Reproduction Techniques. In Anatolian Congresses 7th International Applied Sciences Congress (pp. 23-31).
[3]. Gilman, E. F. (1999). Bougainvillea spp. Cooperative Extension Service, University of Florida, Fact Sheet FPS-70.
[4]. Muthu, M., Gopal, J., Kim, D. H., & Sivanesan, I. (2021). Reviewing the impact of vehicular pollution on road-side plants—future perspectives. Sustainability, 13(9), 5114.
[5]. Sharma, S. C., Srivastava, R., & Roy, R. K. (2005). Role of bougainvilleas in mitigation of environmental pollution. Journal of Environmental Science & Engineering, 47(2), 131-134.
[6]. Kobayashi, K. D., McConnell, J., & Griffis, J. (2007). Bougainvillea: ornamentals and flowers. Honolulu: University of Hawai.
[7]. Franke, W. (1967). Mechanisms of foliar penetration of solutions. Annual Review of Plant Physiology, 18(1), 281-300.
[8]. Al-Bayati, H. J., Ibraheem, F. F., Allela, W. B., & Al-Taey, D. K. (2019). Role of organic and chemical fertilizer on growth and yield of two cultivars of pea (Pisum sativum L.). Plant Archives, 19(Supplement 1), 1249-1253.
[9]. AL-Taey, D.K.A.; AL-Azawi, S.S.M.; AL-Shareefi, M.J.H. and AL-Tawaha, A.R. (2018). Effect of saline water, NPK and organic fertilizers on soil properties and growth, antioxidant enzymes in leaves and yield of lettuce (Lactuca sativa var. Parris Island) Res. on Crops 19(3): 441-449.
[10]. Esmaielpour, B., Rahmanian, M., Khorramdel, S., & Gharavi, H. (2018). Effect of organic fertilizers on nutrients content and essential oil composition of savory (Satureja hortensis L.). Agritech, 38(4), 433-441.
[11]. Al-Sahhaf, Fadhel Hussein. (1989). Applied Plant Nutrition. Ministry of Higher Education and Scientific Research - University of Baghdad - Higher Education Press - Iraq. Available via: Al-Mustansiriya University: https://uomustansiriyah.edu.iq/books/56894.html
[12]. Adnan, M., Hayyat, M. S., Imran, M., Rehman, F. U., Saeed, M. S., Mehta, J., & Tampubolon, K. (2020). Impact of foliar application of magnesium fertilizer on agronomic crops: A review. Ind. J. Pure Appl.
[13]. Al-Rawi, K. M., & Khalaf Allah, A. M. X. (2000). Design and Analysis of Agricultural Experiments (1st Edition). Dar Al-Kutub for Printing and Publishing - University of Mosul, Iraq. https://www.uoanbar.edu.iq/eStoreImages/Bank/17894.pdf.
[14]. Zainal, Ali Mohammed Nouri. (2014). Effect of spraying with Agrihumate and Urea on some growth characteristics and nutritional content of three olive (Olea europaea L.) cultivars seedlings. Master's thesis - College of Agriculture - University of Kirkuk.
[15]. Page, A. L., Miller, R. H., & Keeney, D. R. (1982). Methods of soil analysis. Part 2: Chemical and microbiological properties (2nd ed.). Madison, WI: American Society of Agronomy; Soil Science Society of America. https:// acsess.onlinelibrary.wiley.comacsess.onlinelibrary.wiley.com
[16]. John, M. K. (1970). Colorimetric determination of phosphorus in soil and plant materials with ascorbic acid. Soil Science, 109(4), 214–220. https://doi.org/10.1097/00010694-197004000-00002
[17]. Allen, S. E., Grimshaw, H. M., & Rowland, A. P. (1986). Chemical analysis. In P. D. Moore & S. B. Chapman (Eds.), Methods in plant ecology (2nd ed., pp. 285–344). Oxford: Blackwell Scientific Publications. https://www.scirp.org/reference/referencespapers?referenceid=1569840
[18]. Al-Sahhaf, Fadel Hussein Reda. (1989). Applied Plant Nutrition. Dar Al-Kutub Printing and Publishing Press - University of Baghdad; Ministry of Higher Education and Scientific Research, Iraq
[19]. Rahim, O. M. A., & Mohammed, I. Q. (2020). Effect of organic fertilizer and foliar application of humic and salicylic acids on reducing salinity stress of irrigation water on vegetative growth characteristics of broccoli (Brassica Oleracea) plant. Plant Archives, 20(1), 2263-2268.
[20]. Al-Temimi, H. M. A., Ali, A. A., & Muhsin, Z. M. (2019, November). Effect of humic acid and seaweed extract (ALGA) on growth characteristics and nutrient content of local apricot seedlings Prunus armeniaca L. In IOP conference series: Earth and environmental science (Vol. 388, No. 1, p. 012071). IOP Publishing. https://doi.org/10.1088/1755-1315/388/1/012071
[21]. El-Nemr, M. A., El-Desuki, M., El-Bassiony, A. M., & Fawzy, Z. F. (2012). Response of growth and yield of cucumber plants (Cucumis sativus L.) to different foliar applications of humic acid and bio-stimulators.
[22]. El-Naggar, A. H., & Esmaiel, N. M. (2022). Evaluation the Effect of Humic Acid and Some Soil Amendments on Rooting and Growth of Dracaena marginata Cuttings. Alexandria Science Exchange Journal, 43(4), 703-710.
[23]. Hanafy Ahmed, A. H., El-Sayed, A. A., & Abdel-Aziz, S. M. (2010). Response of growth and productivity of green bean to mineral and biofertilizers. Journal of American Science, 6(10), 600–606.
[24]. Mengel, K., & Kirkby, E. A. (2012). Principles of plant nutrition. Springer Science & Business Media.
