Effect of Electric Arc Furnace Slag on Growth and Physiology of Maize (Zea mays L.)
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Basic slag, used in this study as a potential source of certain nutrients, is a byproduct of the production of steel in electric arc furnace (EAF). A pot experiment with two nutrient-poor substrates was conducted to investigate to compare the effect of EAF steel slag and fertilizers NPK+ F e on growth and availability of specific nutrients to maize. Mineral content of both substrate and plant leaves, growth, chlorophyll fluorescence and photosynthetic pigments were measured following six weeks of cultivation. As steel slag also contains trace amounts of heavy metals, certain oxidative parameters (antioxidative enzyme activities and lipid peroxidation) were evaluated as well. The steel slag improved soil mineral composition, increased above ground maize biomass by providing Fe, Mn, Mg, K and partly P and improved photosynthetic parameters. The potential phytotoxicity of EAF slag containing substrates was not determined as evaluated by MDA (malondialdehyde), GR (glutathione reductase) and APX (ascorbate peroxidase) levels. The obtained results show that EAF steel slag is comparable to NPK+ F e in supplying nutrients for maize growth, indicating the potential of EAF steel slag as an inexpensive and non-phytotoxic nutrient supplier especially in poor soils.
KeywordsSteel slag maize oxidative stress pytotoxicity inorganic fertilizer
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This study has been funded by the Croatian Ministry of Science, Education and Sport, as part of Projects no. 119-1191196-1202. We are thankful to Dr. T. Sofilić for donation of EAF steel slag.
- 1.Allen, S. E. (1974). Chemical Analysis of Ecological Materials. Blackwell Scientific Publications, Oxford.Google Scholar
- 2.Ali, M. T., Shahram, S. H. (2007) Converter slag as a liming agent in the amelioration of acidic soils. Int. J Agr. Biol. 9, 715–720.Google Scholar
- 5.Branca, T. A., Colla, V. (2012) Possible uses of steelmaking slag in agriculture: an overview. In: Achilias, D. S. (ed.. Material recycling–Trends and Perspectives. In Tech, Rijeka, pp. 335–356.Google Scholar
- 6.Eckhard, G., Horst, W., Neumann, E. (2012) Adaptation of plants to adverse chemical soil conditions. In: Marschner, P. (ed.). Marschner’s Mineral Nutrition of Higher Plants, 3rd edition. Academic Press, NY, pp. 409–472.Google Scholar
- 8.Foyer, C. H., Souriau, N., Perret, S., Lelandais, M., Kunert, K. J., Pruvost, C., Jouanin, L. (1995) Overexpression of glutathione reductase but not glutathione synthetase leads to increases in antioxidant capacity and resistance to photoinhibition in poplar trees. Plant Physiol. 109, 1047–1057.CrossRefGoogle Scholar
- 10.Kristen, M., Erstad, K. J. (1996) Converter slag as a liming material on organic soils. Norwegian J. Agric. Sci. 10, 83–93.Google Scholar
- 11.Kühn, M., Spiegel, H., Lopez, A. F., Rex, M., Erdmann, R. (2006). Sustainable agriculture using blast furnace and steel slags as liming agents. Publications Office of the European Communities, Luxembourg.Google Scholar
- 13.Liu, M. D., Zhang, Y. L., Wang, Y. J., Yang, D. (2002) Effect of slag application on dynamic changes of pH, water-soluble silicon concentration in paddy soil and rice yield. Chinese J. Soil Sci. 33, 47–50.Google Scholar
- 15.Nakano, Y., Asada, K. (1981) Hydrogen peroxide is scavenged by ascorbate-specific peroxidase in spinach chloroplasts. Plant Cell Physiol. 22, 867–880.Google Scholar
- 18.Rastovčan-Mioč, A., Sofilić, T., Mioč, B. (2009) Application of electric arc furnace slag. In: Grilec, K., Marić, G. (ed.). Proccedings matrib Vela luka, island Korčula, Hrvatska 24–26. lipnja. Hrvatsko društvo za materijale i tribologiju, Zagreb, pp. 436–444.Google Scholar
- 22.Yang, D., Zhang, Y. L. (2005) Effect of applied blast furnace slags on pH and silicon in rice plant. J. Agro-Env. Sci. 24, 446–449.Google Scholar
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