1.Ali, A., Shaheen, S.M., Guo, D., Li, Y., Xiao, R., Wahid, F., Azeem, M., Sohail, K., Zhang, T., Rinklebe, J., Li, R., and Zhang, Z. 2020. Apricot shell- and apple tree-derived biochar affect the fractionation and bioavailability of Zn and Cd as well as the microbial activity in smelter contaminated soil. Environmental Pollution. 264: 114773.
2.Alloway, B.J. 2009. Soil factors associated with zinc deficiency in crops and humans. Environmental Geochemistry and Health. 31: 537-548.
3.ASTM. 2007. D1762-84: Standard Methods for Chemical Analysis of Wool Charcoal. American Society for Testing and Materials International, West Conshohocken, PA, USA.
4.Beesley, L., Moreno-Jimenez, E., and Gomez-Eyles, J.L. 2010. Effects of biochar and greenwaste compost amendments on mobility, bioavailability and toxicity of inorganic and organic contaminants in a multi-element polluted soil. Environmental Pollution. 158: 2282-2287.
5.Beesley, L., Marmiroli, M., Pagano, L., Pigoni, V., Fellet, G., Fresno, T., Vamerali, T., Bandiera, M., and Marmoroli, N. 2013. Biochar addition to an arsenic contaminated soil increases arsenic concentrations in the pore water but reduces uptake to tomato plants (Solanum lycopersicum L.). Science of the Total Environment. 454-455: 598-603.
6.Bogusz, A., Oleszczuk, P., and Dobrowolski, R. 2015. Application of laboratory prepared and commercially available biochars to adsorption of cadmium, copper and zinc ions from water. Bioresource Technology. 196: 540-549.
7.Bower, C.A., Reitemeier, R., and Fireman, M. 1952. Exchangeable cation analysis of saline and alkali soils. Soil Science, 73: 251-261.
8.Cui, X., Fang, S., Yao, Y., Li, T., Ni, Q., Yang, X., and He, Zh. 2016. Potential mechanisms of cadmium removal from aqueous solution by Canna indica derived biochar. Science of the Total Environment. 562: 517-525.
9.Dai, Z., Zhang, X., Tang, C., Muhammad, N., Wu, J., and Brookes, P.C. 2017. Potential role of biochars in decreasing soil acidification - a critical review. Science of the Total Environment.581-582: 601-611.
10.Fang, J., Zhan, L., Ok, Y.S., and Gao,B. 2018. Minireview of potential applications of hydrochar derived from hydrothermal carbonization of biomass. Journal of Industrial and Engineering Chemistry. 57: 15-21.
11.Gee, G.W., and Bauder, J.W. 1986. Particle-size Analysis. P 383-412. In:A. Klute, (ed.), Methods of Soil Analysis. Part 1.2nd ed. Soil Science Society of America, American Society of Agronomy, Madison. WI. USA.
12.Gu, P., Zhang, Y., Xie, H., Wei, J., Zhang, X., Huang, X., Wang, J.,and Lou, X. 2020. Effect of cornstalk biochar on phytoremediation of Cd-contaminated soil by Beta vulgaris var. cicla L. Ecotoxicology and Environmental Safety. 205: 111144.
13.Gul, S., Whalen, J.K., Thomas,B.W., Sachdeva, V., and Deng, H.2015. Physicochemical properties and microbial responses in biochar-amended soils: mechanisms and future directions. Agriculture, Ecosystems and Environment. 206: 46-59.
14.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: 1450-1457.
15.International Biochar Initiative (IBI). 2012. Standardized Product Definition and Product Testing Guidelines for Biochar That Is Used in Soil. www.biochar‐international.org, accessed 2 December 2012.
16.Iqbal, M.T., Ortaş, I., Ahmed, I.A.M., Isik, M., and Islam, M.S. 2019. Rice straw biochar amended soil improves wheat productivity and accumulated phosphorus in grain. Journal of Plant Nutrition. 14: 1605-1623.
17.Joseph, S., Kammann, C.I., Shepherd, J.G., Conte, P., Schmidt, H.-P., Hagemann, N., Rich, A. M.,Marjo, C.E., Allen, J., Munroe, P., Mitchell, D.R.G., Donne, S., Spokas, K., and Graber, E.R. 2018. Microstructural and associated chemical changes during the composting of a high temperature biochar: mechanisms for nitrate, phosphate and other nutrient retention and release. Science of the Total Environment.618: 1210-1223.
18.Khallizadeh, J., Dordipour, E., Baranimotlagh, and Gharanjiki, A. 2020. Effect of iron impregnated wheat straw and particleboard biochar on the iron uptake and growth of two soybean cultivars in a calcareous soil Journal of Soil Management and Sustainable Production. 10: 83-100.
19.Khan, S., Waqas, M., Ding, F., Shamshad, I., Arp, H.P.H., and Li, G. 2015. The influence of various biochars on the bioaccessibility and bioaccumulation of PAHs and potentially toxic elements to turnips (Brassica rapa L.). Jounal of Hazardous Materials. 300: 243-253.
20.Lestan, D., Luo, C.L., and Li, X.D. 2008. The use of chelating agents in the remediation of metal-contaminated soils: a review. Environmental Pollution 153: 3-13.
21.Li, H., Dong, X., da Silva, E.B., de Oliveira, L.M., Chen, Y., and Ma, L.Q. 2017. Mechanisms of metal sorption by biochars: Biochar characteristics and Modifications: A review. Chemosphere. 178: 466-478.
22.Lindsay, W.L., and Norvell, W.A. 1978. Development of a DTPA soil test for zinc, iron, manganese and copper.
Soil Science Society of America Journal. 42: 421-448.
24.Lu, K., Yang, X., Gielen, G., Bolan, N., Ok, Y.S., Niazi, N.K., Xu, S., Yuan, G., Chen, X., Zhang, X., Liu, D., Song, Z., Liu, X., and Wang, H. 2017. Effect of bamboo and rice straw biochars on the mobility and redistribution of heavy metals (Cd, Cu, Pb and Zn) in contaminated soil. Journal of Environmental Management. 186: 285-292.
25.Malakouti, M.J. 2007. Zinc is a neglected element in the life cycle of plants. Middle East. Rus. Journal of Plant Science and Biotechnology.1: 1-12.
26.Masud, M.M., Li, J.Y., and Xu, R.K. 2014. Use of alkaline slag and crop residue biochars to promote base saturation and reduce acidity of an acidic Ultisol. Pedosphere. 24: 791-798.
27.Moradi, N., and Karimi, A. 2020. Effect of corn stover-modified biochar on some biological properties of a Cd-contaminated calcareous soil. Journal of Soil Management and Sustainable Production. 9: 127-144.
28.Mukherjee, A., Zimmerman, A.R., Hamdan, R., and Cooper, W.T. 2014. Physicochemical changes in pyrogenic organic matter (biochar) after 15 months of field-aging. Solid Earth. 5: 693-704.
29.Noulas, C., Tziouvalekas, M., and Karyotis, T. 2018. Zinc in soils, water and food crops. Journal of Trace Elemments in Medicine and Biology. 49: 252-260.
30.Nzediegwu, C., Prasher, S., Elsayed, E., Dhiman, J., Mawof, A., and Patel, R. 2019. Effect of biochar on heavy metal accumulation in potatoes from wastewater irrigation. Journal of Environmntal Management. 232: 153-164.
31.Pituya, P., Sriburi, Th., and Wijitkosum, S. 2017. Properties of biochar prepared from acacia wood and coconut shell for soil amendment. Engineering Journal 21: 63-76.
32.Prapagdee, S., Piyatiratitivorakul, S., Petsom, A., and Tawinteung, N. 2014. Application of biochar for enhancing cadmium and zinc phytostabilization in Vigna radiata L. Cultivation. Water, Air, and Soil. Pollution. 225: 2233.
33.Puga, A.P., Abreu, C.A., Melo, L.C.A., and Beesley, L. 2015. Biochar application to a contaminated soil reduces the availability and plant uptake of zinc, lead and cadmium. Journal of Environmental Management. 159: 86-93.
34.Reyhanitabar, A. 2019. Biochar application for soil fertility enhancement: Current status, and future prospects. 16th Iranian Soil Science Congress: Soil Fertility, Plant Nutrition and Greenhouse Cultivation. Zanjan, Iran.
35.Reyhanitabar, A., Farhadi1, E., Ramezanzadeh, H., and Oustan, Sh. 2020. Effect of pyrolysis temperature and feedstock sources on physicochemical characteristics of biochar. Journal of Agricultural Science and Technology. 22: 547-561.
36.Sadegh-Zadeh, F., Tolekolai, S.F., Bahmanyar, M.A., and Emadi, M. 2018. Application of Biochar and Compost for Enhancement of Rice (Oryza Sativa L.) Grain Yield in Calcareous Sandy Soil. Communications in Soil Science and Plant Analysis. 49: 552-566.
37.Singh, B., Camps-Arbestain, and M., Lehmann, J. 2017. Biochar: a guide to analytical methods. Csiro Publishing, Australia, 310p.
38.Sparks, D.L., Page, A.L., Helmke, P.A., Loeppert, R.H., Soltanpour, P.N., Tabatabai, M.A., and Sumner, M.E. 1996. Methods of soil analysis. Part 3-chemical methods. Soil Science Society of America Inc, Madison.
39.Tang, J., Cao, C., Gao, F., and Wang, W. 2019. Effects of biochar amendment on the availability of trace elements
and the properties of dissolved organic matter in contaminated soils. Environmental Technology and Innovation. 16: 100492.
40.Tsechansky, L., and Graber, E.R. 2014. Methodological limitations to determining acidic groups at biochar surfaces via the boehm titration. Carbon 66: 730-733.
41.United States Environmental Protection Agency (US EPA). 2002. Supplemental guidance for developing soil screening levels for superfund sites. Office of Solid Waste and Emergency Response, Washington, D.C.
42.Wang, Y., Hu, Y., Zhao, X., Wang, S., and Xing, G. 2013. Comparisons of biochar properties from wood material and crop residues at different temperatures and residence times. Energy and Fuels. 27: 5890-5899.
43.Wang, Y., Zheng, K., Zhan, W., Huang, L., Liu, Y., Li, T., Yang, Zh., Liao, Q., Chen, R., Chaosheng Zhang, Ch., and Wang, Zh. 2021. Highly effective stabilization of Cd and Cu in two different soils and improvement of soil properties by multiple-modified biochar. Ecotoxicology and Environmental Safety. 207: 111294.
44.Westerman, R.L. 1990. Soil Testing and Plant Analysis. The Soil Science Society of America Book Series, Third Edition, Soil Science Society of America, Inc., Madison, Wisconsin, USA, 784p.
45.Zavid, R.L. 2007. Handbook of chemistry and physics and the American chemical. 88th edition. CRC Press. National Institute of Standards and Technology (retired), USA, 556p.