Selenium in the belgian soils and its uptake by rye-grass |
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Authors: | H Robberecht D Vanden Berghe H Deelstra R Van Grieken |
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Affiliation: | 1. Department of Chemistry, University of Antwerp (UIA), Universiteitsplein 1, B-2610 Wilrijk Belgium;2. Department of Medicine, University of Antwerp (UIA), Universiteitsplein 1, B-2610 Wilrijk Belgium;3. Department of Pharmacy, University of Antwerp (UIA), Universiteitsplein 1, B-2610 Wilrijk Belgium |
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Abstract: | Data obtained by atomic absorption spectroscopy showed a selenium concentration of only 0.11 ppm as an average value for the most representative agricultural soils in Belgium. The selenium content in rye-grass grown on different soil types was between 0.05 and 0.11 ppm, and positively correlated with the soil selenium level.Addition of selenium in the form of selenite to the different soil types resulted in an increased selenium uptake by the plant. The ultimate concentration in the plant depended on the structural and chemical composition of the soil. Twelve other elements were determined in the soils by energy-dispersive X-ray fluorescence; none showed a strong correlation with the soil selenium content or with the selenium uptake by ryegrass. |
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