Reducing conditions on barium absorption in rice plants cultured in BaSO4-enriched soil doi: 10.4025/actasciagron.v36i1.17539

Marcio Osvaldo Lima Magalhães; Nelson Moura Brasil do Amaral Sobrinho; Everaldo Zonta; Alfredo Tolón Becerra; Xavier Bolívar Lastra-Bravo; Izabella Bezerra Coutinho

doi:10.4025/actasciagron.v36i1.17539

Reducing conditions on barium absorption in rice plants cultured in BaSO4-enriched soil doi: 10.4025/actasciagron.v36i1.17539

Marcio Osvaldo Lima Magalhães Universidde Federal Rural do Rio de Janeiro
Nelson Moura Brasil do Amaral Sobrinho Universidade Federal Rural do Rio de Janeiro
Everaldo Zonta Universidade Federal Rural do Rio de Janeiro
Alfredo Tolón Becerra University of Almería
Xavier Bolívar Lastra-Bravo University of Almería
Izabella Bezerra Coutinho Universidade Federal Rural do Rio de Janeiro

DOI: https://doi.org/10.4025/actasciagron.v36i1.17539

Abstract

To evaluate the possible solubilization of barium sulfate in soils under reducing conditions and its effects on barium bioavailability, an Oryza sativa pot trial was established. Increasing barium doses and two redox potential conditions were evaluated. The geochemical fractionation data demonstrated that reducing conditions led to an increase in the levels of more labile forms of barium and a reduction in more stable forms. Furthermore, higher doses of barium were found to have a negative impact on grain production. The highest levels of barium accumulation in the leaves, roots, and grains were observed with the highest barium dose under reducing conditions. These results demonstrate that reducing conditions increased barium bioavailability and absorption by rice plants.

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Author Biographies

Marcio Osvaldo Lima Magalhães, Universidde Federal Rural do Rio de Janeiro

Departamento de Solos/Quimica e Poluição do Solo

Nelson Moura Brasil do Amaral Sobrinho, Universidade Federal Rural do Rio de Janeiro

Departamento de Solos/Quimica e Poluição do Solo

Everaldo Zonta, Universidade Federal Rural do Rio de Janeiro

Departamento de Solos/Fertlidade do Solo

Alfredo Tolón Becerra, University of Almería

Engineering Department

Xavier Bolívar Lastra-Bravo, University of Almería

Engineering Department

Izabella Bezerra Coutinho, Universidade Federal Rural do Rio de Janeiro

Departamento de Solos/Quimica e Poluição do Solo

Published

2014-01-07

How to Cite

Magalhães, M. O. L., Sobrinho, N. M. B. do A., Zonta, E., Becerra, A. T., Lastra-Bravo, X. B., & Coutinho, I. B. (2014). Reducing conditions on barium absorption in rice plants cultured in BaSO4-enriched soil doi: 10.4025/actasciagron.v36i1.17539. Acta Scientiarum. Agronomy, 36(1), 119-127. https://doi.org/10.4025/actasciagron.v36i1.17539

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Issue

Vol 36 No 1 (2014)

Section

Soils

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