SciELO - Scientific Electronic Library Online

 
vol.35 issue9Application of multivariate calibration and artificial intelligence in the analysis of infrared spectra to quantify organic matter in soil samplesTheoretical and experimental study of infrared spectra of fatty acid esters present in soybean biodiesel author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Services on Demand

Journal

Article

Indicators

Related links

Share


Química Nova

Print version ISSN 0100-4042

Abstract

LIMA, Erica Souto Abreu et al. Barium absorption by rice plants (Oryza sativa L.) and mobility in soil treated with barite under different redox potential conditions. Quím. Nova [online]. 2012, vol.35, n.9, pp.1746-1751. ISSN 0100-4042.  https://doi.org/10.1590/S0100-40422012000900008.

Two parallel tests were carried out to evaluate barium solubility in soils treated with barite under reducing conditions: one in leaching columns and another with potted plants cultivated with rice. Soils were treated with three doses of barite and kept at two humidity levels. The reduction (-200 mV) condition promoted an increase in barium in the geochemical fraction of higher liability, higher concentrations of barium in the leached extracts, and higher absorption by rice plants. As a result of increased uptake and accumulation of barium, the plants showed stunted growth

Keywords : contamination; leaching; redox potential.

        · text in Portuguese     · Portuguese ( pdf )

 

Creative Commons License All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License