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vol.10 número4DIGITAL MAPPING OF FARMLAND CLASSES IN THREE LANDSCAPE IN MEXICOEFFECT OF NITROGEN FERTILIZER AND MAIZE STRAW INCORPORATION ON NH4+15N AND N0(3) -15N ACCUMULATION IN BLACK SOIL OF NORTHEAST CHINA AMONG THREE CONSECUTIVE CROPPING CYCLES índice de autoresíndice de assuntospesquisa de artigos
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Journal of soil science and plant nutrition

versão On-line ISSN 0718-9516

Resumo

PIGNA, M et al. EFFECTS OF PHOSPHORUS FERTILIZATION ON ARSENIC UPTAKE BY WHEAT GROWN IN POLLUTED SOILS. J. Soil Sci. Plant Nutr. [online]. 2010, vol.10, n.4, pp.428-442. ISSN 0718-9516.  http://dx.doi.org/10.4067/S0718-95162010000200004.

In this study we have examinated the results of two experiments on the uptake and distribution of arsenic (As) in roots, shoots, and grain of wheat grown in As-polluted soils and in an unpolluted soil irrigated with As-contaminated water in absence or presence of phosphorus (P) fertilization. Arsenic concentrations in wheat samples of the two experiments are higher than those in the plants grown on uncontaminated soil. In the experiments showed in this work, it is highlighted the role of P fertilization in preventing As uptake and translocation in wheat plants. These findings could have important implications to reduce the potential risk posed to human health by As entering the food-chain.

Palavras-chave : phosphorus fertilization; arsenic; wheat; polluted soils.

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