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Registro Completo |
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Biblioteca(s): |
Embrapa Meio Ambiente. |
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Data corrente: |
28/07/2015 |
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Data da última atualização: |
28/09/2015 |
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Tipo da produção científica: |
Artigo em Anais de Congresso |
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Autoria: |
CERDEIRA, A. L.; SOUZA, M. D. de; BOLONHEZI, D.; QUEIROZ, S. C. do N. de; FERRACINI, V. L.; LIGO, M. A. V.; PESSOA, M. C. P. Y.; SMITH JR, S. |
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Afiliação: |
ANTONIO LUIZ CERDEIRA, CNPMA; MANOEL DORNELAS DE SOUZA, CNPMA; D.BOLONHEZI, IAC; SONIA CLAUDIA DO N DE QUEIROZ, CNPMA; VERA LUCIA FERRACINI, CNPMA; MARCOS ANTONIO VIEIRA LIGO, CNPMA; MARIA CONCEICAO PERES YOUNG PESSOA, CNPMA; S. SMITH JR, USDA/ARS - National Sedimentation Laboratory. |
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Título: |
Soil tillage systems and herbicide leaching in Brazil. |
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Ano de publicação: |
2005 |
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Fonte/Imprenta: |
In: ANNUAL MISSISSIPI WATER RESOURCES CONFERENCE, 35.; SYMPOSIUM ON SAFE MANAGEMENT AND UTILIZATION OF ANIMAL SAFE, 2., 2005, Cabot Lodge Millsaps, Jackson, MI. [Proceedings…] Cabot Lodge Millsaps, Jackson, MI: GRI, 2005.. p. 1-7. |
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Idioma: |
Inglês |
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Conteúdo: |
The Guarany aquifer located in South America has a dimension of approximately 1,200,000 Km2 and spreads to areas of eight Brazilian states plus parts of Argentina, Uruguay and Paraguay. The region of Ribeirao Preto City, located in Southeast of Brazil, Sao Paulo State, is a sugarcane, soybean, peanuts, and corn producing area. This region is also an important recharge area to the aquifer. Intensive farming on the area has demanded constant use of herbicides and fertilizers. Triazine herbicides such as atrazine, ametryn, and simazine are used on the area and are known to have potential for groundwater contamination. Currently most of the sugar cane crop is mechanically harvested without burning. This practice allows the straw to decompose in soil, maintain a better soil structure, and interferes with the movement and leaching of solutes. It is a common practice to sow peanuts after sugarcane harvest using no-tillage or conventional planting systems. To evaluate the effects of herbicide leaching into groundwater during notillage planting of peanut after mechanically harvested sugarcane, a soil leaching study using soil columns has been conducted. The results showed a general trend of higher density and lower porosity in soils under no-tillage, mainly at the top layer. The Hydraulic Conductivity determined in soil columns was higher for soils under conventional system than no-tillage, 10.82 and 4.59 cm/h respectively,indicating higher leaching potential for conventional system. |
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Thesagro: |
Águas subterrâneas; Hidrologia. |
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Thesaurus Nal: |
Groundwater; Hydrology; Nonpoint source pollution; Soil transport processes. |
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Categoria do assunto: |
W Química e Física |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/127071/1/2005AA-041.pdf
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Marc: |
LEADER 02451nam a2200265 a 4500
001 2020673
005 2015-09-28
008 2005 bl uuuu u00u1 u #d
100 1 $aCERDEIRA, A. L.
245 $aSoil tillage systems and herbicide leaching in Brazil.$h[electronic resource]
260 $aIn: ANNUAL MISSISSIPI WATER RESOURCES CONFERENCE, 35.; SYMPOSIUM ON SAFE MANAGEMENT AND UTILIZATION OF ANIMAL SAFE, 2., 2005, Cabot Lodge Millsaps, Jackson, MI. [Proceedings…] Cabot Lodge Millsaps, Jackson, MI: GRI, 2005.. p. 1-7.$c2005
520 $aThe Guarany aquifer located in South America has a dimension of approximately 1,200,000 Km2 and spreads to areas of eight Brazilian states plus parts of Argentina, Uruguay and Paraguay. The region of Ribeirao Preto City, located in Southeast of Brazil, Sao Paulo State, is a sugarcane, soybean, peanuts, and corn producing area. This region is also an important recharge area to the aquifer. Intensive farming on the area has demanded constant use of herbicides and fertilizers. Triazine herbicides such as atrazine, ametryn, and simazine are used on the area and are known to have potential for groundwater contamination. Currently most of the sugar cane crop is mechanically harvested without burning. This practice allows the straw to decompose in soil, maintain a better soil structure, and interferes with the movement and leaching of solutes. It is a common practice to sow peanuts after sugarcane harvest using no-tillage or conventional planting systems. To evaluate the effects of herbicide leaching into groundwater during notillage planting of peanut after mechanically harvested sugarcane, a soil leaching study using soil columns has been conducted. The results showed a general trend of higher density and lower porosity in soils under no-tillage, mainly at the top layer. The Hydraulic Conductivity determined in soil columns was higher for soils under conventional system than no-tillage, 10.82 and 4.59 cm/h respectively,indicating higher leaching potential for conventional system.
650 $aGroundwater
650 $aHydrology
650 $aNonpoint source pollution
650 $aSoil transport processes
650 $aÁguas subterrâneas
650 $aHidrologia
700 1 $aSOUZA, M. D. de
700 1 $aBOLONHEZI, D.
700 1 $aQUEIROZ, S. C. do N. de
700 1 $aFERRACINI, V. L.
700 1 $aLIGO, M. A. V.
700 1 $aPESSOA, M. C. P. Y.
700 1 $aSMITH JR, S.
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Registro original: |
Embrapa Meio Ambiente (CNPMA) |
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Origem |
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Cutter |
Registro |
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URL |
Voltar
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Registro Completo
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Biblioteca(s): |
Embrapa Tabuleiros Costeiros. |
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Data corrente: |
02/12/2016 |
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Data da última atualização: |
06/04/2017 |
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Tipo da produção científica: |
Artigo em Anais de Congresso |
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Autoria: |
CRUZ, M. A. S.; ARAGAO, R. de; ALMEIDA, A. Q. de; SANTOS, M. I M. |
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Afiliação: |
MARCUS AURELIO SOARES CRUZ, CPATC; RICARDO DE ARAGAO; ANDRE QUITAO DE ALMEIDA; MARIA ISABELLA MATOS SANTOS. |
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Título: |
Avaliação da estimativa de precipitações para diferentes modelos globais de clima (GCM) na região Nordeste do Brasil. |
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Ano de publicação: |
2016 |
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Fonte/Imprenta: |
In: SIMPÓSIO DE RECURSOS HÍDRICOS DO NORDESTE, 13., 2016, Aracaju. |
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Idioma: |
Português |
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Thesagro: |
Recurso Hídrico. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/151075/1/Marcus1.pdf
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Marc: |
LEADER 00535nam a2200145 a 4500
001 2057749
005 2017-04-06
008 2016 bl uuuu u00u1 u #d
100 1 $aCRUZ, M. A. S.
245 $aAvaliação da estimativa de precipitações para diferentes modelos globais de clima (GCM) na região Nordeste do Brasil.$h[electronic resource]
260 $aIn: SIMPÓSIO DE RECURSOS HÍDRICOS DO NORDESTE, 13., 2016, Aracaju.$c2016
650 $aRecurso Hídrico
700 1 $aARAGAO, R. de
700 1 $aALMEIDA, A. Q. de
700 1 $aSANTOS, M. I M.
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Embrapa Tabuleiros Costeiros (CPATC) |
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