Cultivation of vetiver in saline tailings contaminated with arsenic under phosphorus doses

Detalhes bibliográficos
Autor(a) principal: Guimarães,Lorena A. de O. P.
Data de Publicação: 2016
Outros Autores: Dias,Luiz E., Assis,Igor R. de, Cordeiro,Amanda L.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Revista Brasileira de Engenharia Agrícola e Ambiental (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662016001000891
Resumo: ABSTRACT The processing of gold ores exploited in Paracatu, MG, generates tailings that are challenging for revegetation, mainly because of the high content of arsenic and salinity. Aiming at the revegetation of the area of disposal of these tailings, the objective of this study was to evaluate the effects of phosphorus doses on vetiver plants (Chrysopogon zizanioides) and on the planting substrate, which consisted of tailings from the processing of ore named B1, exploited in Paracatu, with water restriction. Vetiver was grown for four months in the substrate under doses of 0, 140, 280, 560 and 1280 mg kg-1 of P2O5. Increasing doses of phosphorus improved the chemical characteristics of the substrate. However, the highest dose (1280 mg kg-1 P2O5) resulted in higher toxicity of arsenic for the plants. Under the evaluated conditions, the dose of 560 mg kg-1 of P2O5 is the most suitable for the fertilization of vetiver and, therefore, also for the revegetation of the substrate. Vetiver survives under low availability of water in the tailings.
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spelling Cultivation of vetiver in saline tailings contaminated with arsenic under phosphorus dosessulfide substrategold miningenvironmental reclamationChrysopogon zizanioidesABSTRACT The processing of gold ores exploited in Paracatu, MG, generates tailings that are challenging for revegetation, mainly because of the high content of arsenic and salinity. Aiming at the revegetation of the area of disposal of these tailings, the objective of this study was to evaluate the effects of phosphorus doses on vetiver plants (Chrysopogon zizanioides) and on the planting substrate, which consisted of tailings from the processing of ore named B1, exploited in Paracatu, with water restriction. Vetiver was grown for four months in the substrate under doses of 0, 140, 280, 560 and 1280 mg kg-1 of P2O5. Increasing doses of phosphorus improved the chemical characteristics of the substrate. However, the highest dose (1280 mg kg-1 P2O5) resulted in higher toxicity of arsenic for the plants. Under the evaluated conditions, the dose of 560 mg kg-1 of P2O5 is the most suitable for the fertilization of vetiver and, therefore, also for the revegetation of the substrate. Vetiver survives under low availability of water in the tailings.Departamento de Engenharia Agrícola - UFCG2016-10-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662016001000891Revista Brasileira de Engenharia Agrícola e Ambiental v.20 n.10 2016reponame:Revista Brasileira de Engenharia Agrícola e Ambiental (Online)instname:Universidade Federal de Campina Grande (UFCG)instacron:UFCG10.1590/1807-1929/agriambi.v20n10p891-896info:eu-repo/semantics/openAccessGuimarães,Lorena A. de O. P.Dias,Luiz E.Assis,Igor R. deCordeiro,Amanda L.eng2016-09-23T00:00:00Zoai:scielo:S1415-43662016001000891Revistahttp://www.scielo.br/rbeaaPUBhttps://old.scielo.br/oai/scielo-oai.php||agriambi@agriambi.com.br1807-19291415-4366opendoar:2016-09-23T00:00Revista Brasileira de Engenharia Agrícola e Ambiental (Online) - Universidade Federal de Campina Grande (UFCG)false
dc.title.none.fl_str_mv Cultivation of vetiver in saline tailings contaminated with arsenic under phosphorus doses
title Cultivation of vetiver in saline tailings contaminated with arsenic under phosphorus doses
spellingShingle Cultivation of vetiver in saline tailings contaminated with arsenic under phosphorus doses
Guimarães,Lorena A. de O. P.
sulfide substrate
gold mining
environmental reclamation
Chrysopogon zizanioides
title_short Cultivation of vetiver in saline tailings contaminated with arsenic under phosphorus doses
title_full Cultivation of vetiver in saline tailings contaminated with arsenic under phosphorus doses
title_fullStr Cultivation of vetiver in saline tailings contaminated with arsenic under phosphorus doses
title_full_unstemmed Cultivation of vetiver in saline tailings contaminated with arsenic under phosphorus doses
title_sort Cultivation of vetiver in saline tailings contaminated with arsenic under phosphorus doses
author Guimarães,Lorena A. de O. P.
author_facet Guimarães,Lorena A. de O. P.
Dias,Luiz E.
Assis,Igor R. de
Cordeiro,Amanda L.
author_role author
author2 Dias,Luiz E.
Assis,Igor R. de
Cordeiro,Amanda L.
author2_role author
author
author
dc.contributor.author.fl_str_mv Guimarães,Lorena A. de O. P.
Dias,Luiz E.
Assis,Igor R. de
Cordeiro,Amanda L.
dc.subject.por.fl_str_mv sulfide substrate
gold mining
environmental reclamation
Chrysopogon zizanioides
topic sulfide substrate
gold mining
environmental reclamation
Chrysopogon zizanioides
description ABSTRACT The processing of gold ores exploited in Paracatu, MG, generates tailings that are challenging for revegetation, mainly because of the high content of arsenic and salinity. Aiming at the revegetation of the area of disposal of these tailings, the objective of this study was to evaluate the effects of phosphorus doses on vetiver plants (Chrysopogon zizanioides) and on the planting substrate, which consisted of tailings from the processing of ore named B1, exploited in Paracatu, with water restriction. Vetiver was grown for four months in the substrate under doses of 0, 140, 280, 560 and 1280 mg kg-1 of P2O5. Increasing doses of phosphorus improved the chemical characteristics of the substrate. However, the highest dose (1280 mg kg-1 P2O5) resulted in higher toxicity of arsenic for the plants. Under the evaluated conditions, the dose of 560 mg kg-1 of P2O5 is the most suitable for the fertilization of vetiver and, therefore, also for the revegetation of the substrate. Vetiver survives under low availability of water in the tailings.
publishDate 2016
dc.date.none.fl_str_mv 2016-10-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
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dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662016001000891
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dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/1807-1929/agriambi.v20n10p891-896
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dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Departamento de Engenharia Agrícola - UFCG
publisher.none.fl_str_mv Departamento de Engenharia Agrícola - UFCG
dc.source.none.fl_str_mv Revista Brasileira de Engenharia Agrícola e Ambiental v.20 n.10 2016
reponame:Revista Brasileira de Engenharia Agrícola e Ambiental (Online)
instname:Universidade Federal de Campina Grande (UFCG)
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instname_str Universidade Federal de Campina Grande (UFCG)
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reponame_str Revista Brasileira de Engenharia Agrícola e Ambiental (Online)
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