Influence of amendments on Cd and Zn uptake and accumulation in rice (Oryza sativa L.) in contaminated soil

Environmental Science and Pollution Research International
Patompong SaengwilaiPreeyaporn Koedrith

Abstract

Cadmium is a toxic metallic element that poses serious human health risks via consumption of contaminated agricultural products. The effect of mixtures of dicalcium phosphate and organic amendments, namely cow manure (MD) and leonardite (LD), on Cd and Zn uptake of three rice cultivars (KDML105, KD53, and PSL2) was examined in mesocosm experiments. Plant growth, Cd and Zn accumulation, and physicochemical properties of the test soils were investigated before and after plant harvest. Amendment application was found to improve soil physicochemical properties; in particular, soil organic matter content and nutrient (N, P, K, Ca, and Mg) concentrations increased significantly. The MD treatment was optimal in terms of increasing plant growth; the MD and LD treatments decreased soil Cd concentration by 3.3-fold and 1.6-fold, respectively. For all treatments, all rice cultivars accumulated greater quantities of Cd and Zn in roots compared with panicles and shoots. Among the three cultivars, RD53 accumulated the lowest quantity of Cd. Translocation factors (<0.28) and bioconcentration coefficients of roots (>1) indicate that the three rice cultivars are Cd excluders. Our results suggest that a mixture of organic and inorganic amendment...Continue Reading

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Citations

Jan 17, 2019·International Journal of Phytoremediation·Weeradej MeeinkuirtPatompong Saengwilai
Aug 1, 2019·International Journal of Phytoremediation·Zohaib AbbasMuhammad Ahsan Riaz
Mar 20, 2018·Environmental Science and Pollution Research International·Theeta SricothPuntaree Taeprayoon
Feb 4, 2019·Environmental Science and Pollution Research International·Alapha ThongchaiJohn Pichtel
Mar 8, 2020·International Journal of Environmental Research and Public Health·Mo-Ming LanYe-Tao Tang
Mar 6, 2021·Environmental Science and Pollution Research International·Sasimar WoraharnPiyathap Avakul

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