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Registro Completo |
Biblioteca(s): |
Embrapa Mandioca e Fruticultura. |
Data corrente: |
07/10/2010 |
Data da última atualização: |
22/08/2022 |
Tipo da produção científica: |
Artigo em Anais de Congresso |
Autoria: |
ARAUJO, Q.; KRAUSE, R.; SANTANA, S.; ARAUJO, T.; MENDONÇA, J.; TRINDADE, A. V. |
Afiliação: |
Quintino Araujo, CEPLAC/UESC; Raquel Krause, UESC; Sandoval Santana, CEPLAC; Taiana Araujo, UESC/UFPR; José Mendonça, CEPLAC; ALDO VILAR TRINDADE, CNPMF. |
Título: |
Evaluation of heavy metals in mangrove soil of the Graciosa River in Bahia, Brazil. |
Ano de publicação: |
2010 |
Fonte/Imprenta: |
In: INTERNATIONAL ANNUAL MEETINGS, ASA, CSSA, AND SSSA, Long Beach, CA, 2010.Green Revolution 2.0: Food + Energy and Environmental Security: abstracts on line. Long Beach, 2010. |
Idioma: |
Inglês |
Notas: |
Disponível em:
Acesso em : 26 out. 2010. |
Conteúdo: |
Mangrove soils are distributed along coastal areas with smooth topography and under constant influence of both, marine and fresh waters. Mangrove soils have specific physical, chemical and biological properties, as well as some heavy metals that in high concentrations become toxic to the environment. This work aimed to characterize a mangrove soil in South Bahia, Brazil, with focus on heavy metals. Samples of 5 layers from a profile (125 cm depth) were evaluated. In a first phase it was done the characterization of soil samples collected in a deforested (anthropic) riverine area, in 2002. For the superficial layer C1 (0-20 cm) samples of an adjacent and area under natural conditions had been also collected. Secondarily, data from the superficial layer samples under both, natural and anthropic conditions were compared, considering samples of 2002 (deforested situation) and 2007 (regenerated situation). Heavy metals concentration on the samples of 2002 were significantly different among the layers and exhibited, in general, low levels in relation to those found in no polluted soils, except for Cd and Pb that presented intermediate level. In the period between 2002 and 2007, for the superficial layers, natural and anthropic, a decrease in metals concentrations was observed, except to Ni. |
Palavras-Chave: |
Gleysol; Heavy metal. |
Thesagro: |
Girassol; Metal Pesado; Solo. |
Thesaurus Nal: |
soil properties; trace elements. |
Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
Marc: |
LEADER 02329nam a2200265 a 4500 001 1863831 005 2022-08-22 008 2010 bl uuuu u00u1 u #d 100 1 $aARAUJO, Q. 245 $aEvaluation of heavy metals in mangrove soil of the Graciosa River in Bahia, Brazil.$h[electronic resource] 260 $aIn: INTERNATIONAL ANNUAL MEETINGS, ASA, CSSA, AND SSSA, Long Beach, CA, 2010.Green Revolution 2.0: Food + Energy and Environmental Security: abstracts on line. Long Beach$c2010 500 $aDisponível em: <http://a-c-s.confex.com/crops/2010am/webprogram/Presentation/Paper63088/Quintino%20Araujo%20et%20al.%20Heavy%20Metals,%20Mangrove,%20Brazil.pdf> Acesso em : 26 out. 2010. 520 $aMangrove soils are distributed along coastal areas with smooth topography and under constant influence of both, marine and fresh waters. Mangrove soils have specific physical, chemical and biological properties, as well as some heavy metals that in high concentrations become toxic to the environment. This work aimed to characterize a mangrove soil in South Bahia, Brazil, with focus on heavy metals. Samples of 5 layers from a profile (125 cm depth) were evaluated. In a first phase it was done the characterization of soil samples collected in a deforested (anthropic) riverine area, in 2002. For the superficial layer C1 (0-20 cm) samples of an adjacent and area under natural conditions had been also collected. Secondarily, data from the superficial layer samples under both, natural and anthropic conditions were compared, considering samples of 2002 (deforested situation) and 2007 (regenerated situation). Heavy metals concentration on the samples of 2002 were significantly different among the layers and exhibited, in general, low levels in relation to those found in no polluted soils, except for Cd and Pb that presented intermediate level. In the period between 2002 and 2007, for the superficial layers, natural and anthropic, a decrease in metals concentrations was observed, except to Ni. 650 $asoil properties 650 $atrace elements 650 $aGirassol 650 $aMetal Pesado 650 $aSolo 653 $aGleysol 653 $aHeavy metal 700 1 $aKRAUSE, R. 700 1 $aSANTANA, S. 700 1 $aARAUJO, T. 700 1 $aMENDONÇA, J. 700 1 $aTRINDADE, A. V.
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Embrapa Mandioca e Fruticultura (CNPMF) |
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Biblioteca(s): |
Embrapa Milho e Sorgo. |
Data corrente: |
22/03/2018 |
Data da última atualização: |
09/05/2018 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
A - 2 |
Autoria: |
SILVEIRA, T. C.; PREGORARO, R. F.; KONDO, M. K.; PORTUGAL, A. F.; RESENDE, A. V. |
Afiliação: |
Thiago C. Silveira; Rodinei F. Pegoraro; Marcos K. Kondo; ARLEY FIGUEIREDO PORTUGAL, CNPMS; ALVARO VILELA DE RESENDE, CNPMS. |
Título: |
Sorghum yield after liming and combinations of phosphorus sources. |
Ano de publicação: |
2018 |
Fonte/Imprenta: |
Revista Brasileira de Engenharia Agrícola e Ambiental, Campina Grande, v. 22, n. 4, p. 243-248, 2018. |
DOI: |
10.1590/1807-1929/agriambi.v22n4p243-248 |
Idioma: |
Inglês |
Conteúdo: |
Phosphate fertilization has increased sorghum yield, but few studies are available on sorghum production and efficient fertilizer management related to liming and phosphorus (P) sources. This work evaluates production, dry matter partitioning and agronomic efficiency (AEI) in successive sorghum cycles after application of limestone and combinations of phosphorus sources. Two cycles were conducted in sequence in the same experimental field, in a 2 x 6 factorial scheme, corresponding to soil with or without liming and six combinations of P2O5 sources: control (0 kg ha-1 P2O5), 100% Itafós natural phosphate (NP), 75% NP + 25% single superphosphate (SS), 50% NP + 50% SS, 25% NP + 75% SS and 100% SS. Pots with capacity for 8 dm3 were used in a randomized block design with four replicates. The first cycle, conducted in the summer/autumn season, reached the highest dry matter production and P accumulation in treatments with higher SS proportions, leading to higher AEI. Subsequently, in the second cycle, conducted considering only the residual phosphate fertilization of the first cycle, highest dry matter production and AEI were obtained in the treatment with 100% or higher proportions of natural phosphate in the presence of liming, most likely due to the gradual release of P. |
Palavras-Chave: |
Adubação fosfatada; Eficiência agronomica. |
Thesagro: |
Adubação; Fósforo; Matéria seca; Sorgo. |
Categoria do assunto: |
S Ciências Biológicas |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/174413/1/Sorghum-yield.pdf
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Marc: |
LEADER 02074naa a2200253 a 4500 001 2089611 005 2018-05-09 008 2018 bl uuuu u00u1 u #d 024 7 $a10.1590/1807-1929/agriambi.v22n4p243-248$2DOI 100 1 $aSILVEIRA, T. C. 245 $aSorghum yield after liming and combinations of phosphorus sources.$h[electronic resource] 260 $c2018 520 $aPhosphate fertilization has increased sorghum yield, but few studies are available on sorghum production and efficient fertilizer management related to liming and phosphorus (P) sources. This work evaluates production, dry matter partitioning and agronomic efficiency (AEI) in successive sorghum cycles after application of limestone and combinations of phosphorus sources. Two cycles were conducted in sequence in the same experimental field, in a 2 x 6 factorial scheme, corresponding to soil with or without liming and six combinations of P2O5 sources: control (0 kg ha-1 P2O5), 100% Itafós natural phosphate (NP), 75% NP + 25% single superphosphate (SS), 50% NP + 50% SS, 25% NP + 75% SS and 100% SS. Pots with capacity for 8 dm3 were used in a randomized block design with four replicates. The first cycle, conducted in the summer/autumn season, reached the highest dry matter production and P accumulation in treatments with higher SS proportions, leading to higher AEI. Subsequently, in the second cycle, conducted considering only the residual phosphate fertilization of the first cycle, highest dry matter production and AEI were obtained in the treatment with 100% or higher proportions of natural phosphate in the presence of liming, most likely due to the gradual release of P. 650 $aAdubação 650 $aFósforo 650 $aMatéria seca 650 $aSorgo 653 $aAdubação fosfatada 653 $aEficiência agronomica 700 1 $aPREGORARO, R. F. 700 1 $aKONDO, M. K. 700 1 $aPORTUGAL, A. F. 700 1 $aRESENDE, A. V. 773 $tRevista Brasileira de Engenharia Agrícola e Ambiental, Campina Grande$gv. 22, n. 4, p. 243-248, 2018.
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