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Registro Completo |
Biblioteca(s): |
Embrapa Clima Temperado. |
Data corrente: |
19/03/2012 |
Data da última atualização: |
25/11/2020 |
Tipo da produção científica: |
Comunicado Técnico/Recomendações Técnicas |
Autoria: |
SCIVITTARO, W. B.; GOMES, A. da S. |
Afiliação: |
WALKYRIA BUENO SCIVITTARO, CPACT; ALGENOR DA SILVA GOMES, APOSENTADO DA EMBRAPA. |
Título: |
Manejo da água e do nitrogênio em arroz irrigado. |
Ano de publicação: |
2006 |
Fonte/Imprenta: |
Pelotas: Embrapa Clima Temperado, 2006. |
Páginas: |
8 p. |
Série: |
(Embrapa Clima Temperado. Comunicado técnico, 149). |
ISSN: |
1806-9185 |
Idioma: |
Português |
Conteúdo: |
Para atender a essa demanda, a Embrapa Clima Temperado vem desenvolvendo estudos para avaliar o efeito da época de entrada de água e da adubação nitrogenada sobre o desempenho produtivo e a eficiência de utilização de nitrogênio pelo arroz. Nesta publicação, apresenta-se uma síntese dos resultados de pesquisa referentes a esses trabalhos, visando determinar a viabilidade técnica de atrasar a entrada de água e a adubação nitrogenada, além do início do perfilhamento, em arroz irrigado. |
Thesagro: |
Água; Arroz; Arroz Irrigado; Manejo; Nitrogênio. |
Categoria do assunto: |
-- |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/56006/1/comunicado-149.pdf
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Marc: |
LEADER 01098nam a2200217 a 4500 001 1919409 005 2020-11-25 008 2006 bl uuuu u0uu1 u #d 022 $a1806-9185 100 1 $aSCIVITTARO, W. B. 245 $aManejo da água e do nitrogênio em arroz irrigado.$h[electronic resource] 260 $aPelotas: Embrapa Clima Temperado$c2006 300 $a8 p. 490 $a(Embrapa Clima Temperado. Comunicado técnico, 149). 520 $aPara atender a essa demanda, a Embrapa Clima Temperado vem desenvolvendo estudos para avaliar o efeito da época de entrada de água e da adubação nitrogenada sobre o desempenho produtivo e a eficiência de utilização de nitrogênio pelo arroz. Nesta publicação, apresenta-se uma síntese dos resultados de pesquisa referentes a esses trabalhos, visando determinar a viabilidade técnica de atrasar a entrada de água e a adubação nitrogenada, além do início do perfilhamento, em arroz irrigado. 650 $aÁgua 650 $aArroz 650 $aArroz Irrigado 650 $aManejo 650 $aNitrogênio 700 1 $aGOMES, A. da S.
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Registro original: |
Embrapa Clima Temperado (CPACT) |
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| Acesso ao texto completo restrito à biblioteca da Embrapa Gado de Leite. Para informações adicionais entre em contato com cnpgl.biblioteca@embrapa.br. |
Registro Completo
Biblioteca(s): |
Embrapa Gado de Leite. |
Data corrente: |
10/04/2015 |
Data da última atualização: |
30/01/2024 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
A - 1 |
Autoria: |
ASSIS, A. S.; CRUZ, L. T.; FERREIRA, A. S.; BESSA, M. E.; PINTO, M. A. de O.; VIEIRA, C. B.; OTENIO, M. H.; MIAGOSTOVICH, M. P.; SILVA, M. L. da R. e. |
Afiliação: |
ANDRÊSSA S. F. ASSIS, UFJF; LUCAS T. CRUZ, UFJF; ALINE S. FERREIRA, UFJF; MARTHA E. BESSA, UFJF; MIRIAM A. de O. PINTO, UFJF; CARMEN B. VIEIRA, Instituto Oswaldo Cruz; MARCELO HENRIQUE OTENIO, CNPGL; MARIZE P. MIAGOSTOVICH, Instituto Oswaldo Cruz; MARIA LUZIA da R. e SILVA, UFJF. |
Título: |
Relationship between viral detection and turbidity in a watershed contaminated with group A rotavirus. |
Ano de publicação: |
2015 |
Fonte/Imprenta: |
Environmental Science and Pollution Research, v. 22, p. 6886-6897, 2015. |
DOI: |
http://dx.doi.org/10.1007/s11356-014-3874-8 |
Idioma: |
Inglês |
Conteúdo: |
Enteric viruses are present in aquatic environments due to contamination by raw sewage, even in the absence of fecal coliforms, which are considered to be significant indicators when it comes to microbial water quality assessment. This study investigated the presence of group A rotavirus (RVA) in surface water from a river basin in Minas Gerais, Brazil, assessing the influence of the urbanization, the rainfall, and the microbiological and physico-chemical parameters regarding water quality. Forty-eight surface water samples collected in urbanized and non-urbanized areas, both in dry and rainy periods, were obtained throughout the study. The viral particles were concentrated by adsorption-elution in a negatively charged membrane. Fecal coliforms, as well as physico-chemical water parameters were determined at each point in all collections. The RVA was detected in 62.5 % (30/48) of the water samples through a real-time PCR assay. All the sequenced RVA strains belonged to genotype I1. The RVA was detected in 50.0 % (11/22) of the water samples regarded as being acceptable by current microbiological standards. The presence of the RVA and the viral load were influenced by the collection area (p < 0.05). It was also observed a significant association between the RVA and detecting the turbidity of water (p < 0.05). The collected data showed a high level of contamination in this watershed by the discharge of raw sewage, highlighting the need for urgent measures to improve water quality, ensuring the safe use of this matrix. MenosEnteric viruses are present in aquatic environments due to contamination by raw sewage, even in the absence of fecal coliforms, which are considered to be significant indicators when it comes to microbial water quality assessment. This study investigated the presence of group A rotavirus (RVA) in surface water from a river basin in Minas Gerais, Brazil, assessing the influence of the urbanization, the rainfall, and the microbiological and physico-chemical parameters regarding water quality. Forty-eight surface water samples collected in urbanized and non-urbanized areas, both in dry and rainy periods, were obtained throughout the study. The viral particles were concentrated by adsorption-elution in a negatively charged membrane. Fecal coliforms, as well as physico-chemical water parameters were determined at each point in all collections. The RVA was detected in 62.5 % (30/48) of the water samples through a real-time PCR assay. All the sequenced RVA strains belonged to genotype I1. The RVA was detected in 50.0 % (11/22) of the water samples regarded as being acceptable by current microbiological standards. The presence of the RVA and the viral load were influenced by the collection area (p < 0.05). It was also observed a significant association between the RVA and detecting the turbidity of water (p < 0.05). The collected data showed a high level of contamination in this watershed by the discharge of raw sewage, highlighting the need for urgent measures to improve water qual... Mostrar Tudo |
Palavras-Chave: |
Fecal coliform; Physico-chemical parameters. |
Thesagro: |
Rotavírus. |
Thesaurus NAL: |
environmental monitoring; surface water; water quality. |
Categoria do assunto: |
H Saúde e Patologia |
Marc: |
LEADER 02498naa a2200301 a 4500 001 2013275 005 2024-01-30 008 2015 bl uuuu u00u1 u #d 024 7 $ahttp://dx.doi.org/10.1007/s11356-014-3874-8$2DOI 100 1 $aASSIS, A. S. 245 $aRelationship between viral detection and turbidity in a watershed contaminated with group A rotavirus.$h[electronic resource] 260 $c2015 520 $aEnteric viruses are present in aquatic environments due to contamination by raw sewage, even in the absence of fecal coliforms, which are considered to be significant indicators when it comes to microbial water quality assessment. This study investigated the presence of group A rotavirus (RVA) in surface water from a river basin in Minas Gerais, Brazil, assessing the influence of the urbanization, the rainfall, and the microbiological and physico-chemical parameters regarding water quality. Forty-eight surface water samples collected in urbanized and non-urbanized areas, both in dry and rainy periods, were obtained throughout the study. The viral particles were concentrated by adsorption-elution in a negatively charged membrane. Fecal coliforms, as well as physico-chemical water parameters were determined at each point in all collections. The RVA was detected in 62.5 % (30/48) of the water samples through a real-time PCR assay. All the sequenced RVA strains belonged to genotype I1. The RVA was detected in 50.0 % (11/22) of the water samples regarded as being acceptable by current microbiological standards. The presence of the RVA and the viral load were influenced by the collection area (p < 0.05). It was also observed a significant association between the RVA and detecting the turbidity of water (p < 0.05). The collected data showed a high level of contamination in this watershed by the discharge of raw sewage, highlighting the need for urgent measures to improve water quality, ensuring the safe use of this matrix. 650 $aenvironmental monitoring 650 $asurface water 650 $awater quality 650 $aRotavírus 653 $aFecal coliform 653 $aPhysico-chemical parameters 700 1 $aCRUZ, L. T. 700 1 $aFERREIRA, A. S. 700 1 $aBESSA, M. E. 700 1 $aPINTO, M. A. de O. 700 1 $aVIEIRA, C. B. 700 1 $aOTENIO, M. H. 700 1 $aMIAGOSTOVICH, M. P. 700 1 $aSILVA, M. L. da R. e 773 $tEnvironmental Science and Pollution Research$gv. 22, p. 6886-6897, 2015.
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