[1].Angelova, V., Ivanova, R., Delibaltova, V. and Ivanov, K., 2004. Bio-accumulation and distribution of heavy metals in fibre crops (flax, cotton and hemp). Industrial crops and products, 19(3), pp.197-205.
[2].Jomova, K., Alomar, S.Y., Nepovimova, E., Kuca, K. and Valko, M., 2025. Heavy metals: toxicity and human health effects. Archives of toxicology, 99(1), pp.153-209.
[3].Alloway, B.J. ed., 2012. Heavy metals in soils: trace metals and metalloids in soils and their bioavailability (Vol. 22). Springer Science & Business Media.
[4].Wuana, R.A. and Okieimen, F.E., 2011. Heavy metals in contaminated soils: a review of sources, chemistry, risks and best available strategies for remediation. International Scholarly Research Notices, 2011(1), p.402647.
[5].Dipu, S., Kumar, A.A. and Thanga, S.G., 2012. Effect of chelating agents in phytoremediation of heavy metals. Remediation Journal, 22(2), pp.133-146.
[6]. Awofolu, O.R., 2005. A survey of trace metals in vegetation, soil and lower animal along some selected major roads in metropolitan city of Lagos. Environmental monitoring and Assessment, 105(1), pp.431-447.
[7]. Polemio, M. and Rhoades, J.D., 1977. Determining cation exchange capacity: A new procedure for calcareous and gypsiferous soils. Soil Science Society of America Journal, 41(3), pp.524-528.
[8]. Palansooriya, K.N., Yang, Y., Tsang, Y.F., Sarkar, B., Hou, D., Cao, X., Meers, E., Rinklebe, J., Kim, K.H. and Ok, Y.S., 2020. Occurrence of contaminants in drinking water sources and the potential of biochar for water quality improvement: A review. Critical Reviews in Environmental Science and Technology, 50(6), pp.549-611.
[9]. Houben, D., Evrard, L. and Sonnet, P., 2013. Mobility, bioavailability and pH-dependent leaching of cadmium, zinc and lead in a contaminated soil amended with biochar. Chemosphere, 92(11), pp.1450-1457.
[10]. Blaylock, M.J., Salt, D.E., Dushenkov, S., Zakharova, O., Gussman, C., Kapulnik, Y. et al. (1997) ‘Enhanced accumulation of Pb in Indian mustard by soil-applied chelating agents’, Environmental Science & Technology, 31(3), pp. 860–865.
[11]. Khan, A., Khan, A.A., Irfan, M., Sayeed Akhtar, M. and Hasan, S.A., 2023. Lead-induced modification of growth and yield of Linum usitatissimum L. and its soil remediation potential. International Journal of Phytoremediation, 25(8), pp.1067-1076.
[12]. Shehata, S.M., Badawy, R.K. and Aboulsoud, Y.I., 2019. Phytoremediation of some heavy metals in contaminated soil. Bulletin of the National Research Centre, 43(1), p.189.
[13]. Khan, S., Cao, Q., Zheng, Y.M., Huang, Y.Z. and Zhu, Y.G., 2008. Health risks of heavy metals in contaminated soils and food crops irrigated with wastewater in Beijing, China. Environmental pollution, 152(3), pp.686-692.
[14]. Kabata-Pendias, A., 2000. Trace elements in soils and plants. CRC press.
[15]. Grossman, R.B. and Reinsch, T.G., 2002. 2.1 Bulk density and linear extensibility. Methods of soil analysis: Part 4 physical methods, 5, pp.201-228.
[16]. Boros-Lajszner, E., Wyszkowska, J. and Kucharski, J., 2020. Application of white mustard and oats in the phytostabilisation of soil contaminated with cadmium with the addition of cellulose and urea. Journal of Soils and Sediments, 20(2), pp.931-942.
[17]. [Vardhan, K.H., Kumar, P.S. and Panda, R.C., 2019. A review on heavy metal pollution, toxicity and remedial measures: Current trends and future perspectives. Journal of Molecular Liquids, 290, p.111197.
[18]. Evangelou, M.W., Daghan, H. and Schaeffer, A., 2004. The influence of humic acids on the phytoextraction of cadmium from soil. Chemosphere, 57(3), pp.207-213.
[19]. Page, R.H.M. and K, D.R. 1982. Methods of Analysis: Part 2—Chemical and Microbiological Properties. 2nd edn. Madison, WI: American Society of Agronomy.
[20]. Shahid, M., Dumat, C., Silvestre, J. and Pinelli, E., 2012. Effect of fulvic acids on lead-induced oxidative stress to metal sensitive Vicia faba L. plant. Biology and Fertility of Soils, 48(6), pp.689-697.
[21]. Sebahi, J. H. S. and Mowafaq F., 1991. Uses Chemical fertilizer indicator.Ministry of Agric. and Irrigation. Public Authority for Agricultural Services. Press the General Authority of Survey. (In Arabic).
[22]. Seregin, I.V. and Ivanov, V.B., 2001. Physiological aspects of cadmium and lead toxic effects on higher plants. Russian journal of plant physiology, 48(4), pp.523-544.
[23]. Lou YuLan, L.Y., Zhang YongSong, Z.Y. and Lin XianYong, L.X., 2005. Effects of forms of nitrogen fertilizer on the bioavailability of heavy metals in the soils amended with biosolids and their uptake by corn plant.
[24]. Nemati, B., Baneshi, M.M., Akbari, H., Dehghani, R. and Mostafaii, G., 2024. Phytoremediation of pollutants in oil-contaminated soils by Alhagi camelorum: evaluation and modeling. Scientific Reports, 14(1), p.5502.
[25]. Stojanov, N., Maletić, S., Beljin, J., Đukanović, N., Kiprovski, B. and Ninkov, Z. 2022. ‘Application of biochar and its effect on phytoremediation potential of hemp and flax cultivated on fluvisol’, Sustainability, 14(22), p. 14899.
[26]. Palansooriya, K.N., Ok, Y.S., Awad, Y.M., Lee, S.S., Sung, J.K., Koutsospyros, A. and Moon, D.H., 2019. Impacts of biochar application on upland agriculture: A review. Journal of environmental management, 234, pp.52-64.
[27]. Cao, X., Ma, L., Gao, B. and Harris, W., 2009. Dairy-manure derived biochar effectively sorbs lead and atrazine. Environmental science & technology, 43(9), pp.3285-3291.
[28]. Najmanova, J., Neumannova, E., Leonhardt, T., Zitka, O., Kizek, R., Macek, T., Mackova, M. and Kotrba, P., 2012. Cadmium-induced production of phytochelatins and speciation of intracellular cadmium in organs of Linum usitatissimum seedlings. Industrial Crops and Products, 36(1), pp.536-542.
[29]. Hosman, M.E., El-Feky, S.S., Elshahawy, M.I. and Shaker, E.M., 2017. Mechanism of phytoremediation potential of flax (Linum usitatissimum L.) to Pb, Cd and Zn. Asian J. Plant Sci. Res, 7(4), pp.30-40.
[30]. Ghosh, M. and Singh, S.P., 2005. A review on phytoremediation of heavy metals and utilization of it’s by products. Asian J Energy Environ, 6(4), p.18.
[31]. Jakubus, M. and Graczyk, M., 2021. The Effect of Compost and fly ash treatment of contaminated soil on the immobilisation and bioavailability of lead. Agronomy, 11(6), p.1188.
[32]. Bremner, J.M., 1965. Inorganic forms of nitrogen. Methods of soil analysis: Part 2 chemical and microbiological properties, 9, pp.1179-1237.
[33]. Baraniecki, P., Grabowska, L. and Mankowski, J., 1995. Flax and hemp in areas made derelict by the copper industry. Natural Fibres, 39, pp.79-85.
[34]. Temminghoff, E.J.M., Houba, V.J.G., Van Vark, W. and Gaikhorst, G.A., 2000. Soil and plant analysis. Syllabus. Wageningen University Research Center. Wageningen.
[35]. Soltanpour, P.A. and Schwab, A.P., 1977. A new soil test for simultaneous extraction of macro‐and micro‐nutrients in alkaline soils. Communications in soil science and plant analysis, 8(3), pp.195-207.
[36]. Steinberg, S.M. and Hodge, V.F., 2022. Measurement of lead complexation by humic acids and humic acid analogues using competitive ligand exchange. Heliyon, 8(12).
[37]. Usman, K., Al-Ghouti, M.A. and Abu-Dieyeh, M.H., 2019. The assessment of cadmium, chromium, copper, and nickel tolerance and bioaccumulation by shrub plant Tetraena qataranse. Scientific reports, 9(1), p.5658.
[38]. Wong, C.S., Li, X. and Thornton, I., 2006. Urban environmental geochemistry of trace metals. Environmental pollution, 142(1), pp.1-16.
[39]. Uchimiya, M., Bannon, D.I., Wartelle, L.H., Lima, I.M. and Klasson, K.T., 2012. Lead retention by broiler litter biochars in small arms range soil: impact of pyrolysis temperature. Journal of agricultural and food chemistry, 60(20), pp.5035-5044.
[40]. Liu, Q., Sun, X., Wang, S., Zhao, R., Li, L., Zhou, J., Bao, L., Zhou, W. and Zhang, N., 2025. Impacts of Humic Acid and Potassium Fulvate on Cadmium and Lead Accumulation and Translocation in Maize (Zea mays L.) Grown in Co-Contaminated Soil. Agriculture, 15(19), p.2064.
[41]. Yildirim, D., Kulcu, M. and Yildiz, A. 2021. Impact of humic acid applications on the reduction of cadmium and lead uptake by spinach (Spinacia oleracea L.)’, Scientific Reports, 11(1), p. 8306.
[42]. Cui, H., Zhang, C., Song, C., Xie, L., Zhang, G., Zhao, L., Zhao, Y. and Wei, Z., 2024. Remediation of Solid Wastes and Stabilization of Heavy Metal Contaminations Using Humid Acid Ligands. ACS Sustainable Resource Management, 1(3), pp.471-479.
[43]. Chen, Z., Pei, J., Wei, Z., Ruan, X., Hua, Y., Xu, W., Zhang, C., Liu, T. and Guo, Y., 2021. A novel maize biochar-based compound fertilizer for immobilizing cadmium and improving soil quality and maize growth. Environmental Pollution, 277, p.116455.
[44]. Beesley, L., Moreno-Jimenez, E., Fellet, G., Melo, L. and Sizmur, T., 2015. Biochar and heavy metals. In Biochar for environmental management (pp. 563-594). Routledge.
[45]. Rong, Q., Zhong, K., Huang, H., Li, C., Zhang, C. and Nong, X., 2020. Humic acid reduces the available cadmium, copper, lead, and zinc in soil and their uptake by tobacco. Applied Sciences, 10(3), p.1077.
[46]. Saleem, M.H., Kamran, M., Zhou, Y., Parveen, A., Rehman, M., Ahmar, S., Malik, Z., Mustafa, A., Anjum, R.M.A., Wang, B. and Liu, L., 2020. Appraising growth, oxidative stress and copper phytoextraction potential of flax (Linum usitatissimum L.) grown in soil differentially spiked with copper. Journal of environmental management, 257, p.109994.
[47]. Huang, W., Zhang, C., Zhu, B., Liu, X., Xiao, H., Liu, S. and Shao, H., 2025. Systematic evaluation of plant metals/metalloids accumulation efficiency: a global synthesis of bioaccumulation and translocation factors. Frontiers in Plant Science, 16, p.1602951.
[48]. Douchiche, O., Chaïbi, W. and Morvan, C., 2012. Cadmium tolerance and accumulation characteristics of mature flax, cv. Hermes: Contribution of the basal stem compared to the root. Journal of Hazardous Materials, 235, pp.101-107.
[49]. Yan, A., Wang, B., Zhou, Y., Deng, L. and Zhang, W. 2020. Heavy metal contamination in soil and sediment: risks and remediation strategies’, Environmental Chemistry Letters, 18(5), pp. 1553–1571.
[50]. Abou Hussien, E.A., Shalaby, M.H. and Alshahri, B.S.O., 2020. Utilizing Compost and Biochar in Enhancing Phytoremediation of Contaminated Soil. Menoufia Journal of Soil Science, 5(8), pp.201-213.
[51]. Yoon, J., Cao, X., Zhou, Q. and Ma, L.Q., 2006. Accumulation of Pb, Cu, and Zn in native plants growing on a contaminated Florida site. Science of the total environment, 368(2-3), pp.456-464.
