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Chromium accumulation in maize and cowpea after successive applications of composted tannery sludge Agronomy
Sousa, Ricardo Silva de; Nunes, Luis Alfredo Pinheiro Leal; Lima, Aurenivia Bonifacio de; Melo, Wanderley Jose de; Antunes, Jadson Emanuel Lopes; Araujo, Ademir Sérgio Ferreira de.
Chromium (Cr) accumulation in soil and plants has been reported after successive applications of tannery sludge, which is a matter of concern because Cr can promote environmental contamination and affect the food chain. In this study, we evaluated the growth of and Cr accumulation in maize and cowpea after seven years of consecutive applications of composted tannery sludge (CTS) under field conditions. The experiment consisted of application of CTS at five levels: 0 (control), 2.5, 5, 10, and 20 Mg ha-1 (dry basis). The growth of and Cr accumulation in maize and cowpea were evaluated at 75 and 65 days after plant emergence, respectively. CTS application increased the shoot biomass of maize and cowpea. Accumulation of Cr was similar for both plant species,...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Waste management; Tannery sludge; Plant and soil interaction; Metals.; Solos.
Ano: 2018 URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/35361
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