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Provedor de dados:  Agronomy
País:  Brazil
Título:  Chromium accumulation in maize and cowpea after successive applications of composted tannery sludge
Autores:  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
Data:  2018-03-01
Ano:  2018
Palavras-chave:  Waste management
Tannery sludge
Plant and soil interaction
Metals.
Solos
Resumo:  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, with higher accumulation in roots. However, Cr accumulation in grains differed as the CTS doses increased; cowpea accumulated more Cr while maize did not accumulate more Cr in grains with higher CTS doses. In conclusion, application of CTS led to higher growth of maize and cowpea plants, and both species exhibited similar Cr accumulation in roots and shoots. 
Tipo:  Info:eu-repo/semantics/article
Idioma:  Inglês
Identificador:  http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/35361

10.4025/actasciagron.v40i1.35361
Editor:  Universidade Estadual de Maringá
Relação:  http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/35361/pdf
Formato:  application/pdf
Fonte:  Acta Scientiarum. Agronomy; Vol 40 (2018): Publicação Contínua; e35361

Acta Scientiarum. Agronomy; v. 40 (2018): Publicação Contínua; e35361

1807-8621

1679-9275
Direitos:  Copyright (c) 2018 Acta Scientiarum. Agronomy
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