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Registro Completo |
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Biblioteca(s): |
Embrapa Amazônia Ocidental; Embrapa Unidades Centrais. |
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Data corrente: |
06/09/1996 |
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Data da última atualização: |
22/08/2013 |
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Autoria: |
PAIVA, J. R. de; GONÇALVES, P. de S.; TRINDADE, D. R.; VALOIS, A. C. C.; VIÉGAS, I. de J. M. |
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Afiliação: |
EMBRAPA-CNPSD. |
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Título: |
Comportamento preliminar de alguns clones de seringueira em Manaus. |
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Ano de publicação: |
1982 |
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Fonte/Imprenta: |
Manaus: EMBRAPA-CNPSD, 1982. |
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Páginas: |
5 p. |
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Série: |
(EMBRAPA-CNPSD. Pesquisa em Andamento, 12). |
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ISSN: |
0101-2118 |
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Idioma: |
Português |
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Conteúdo: |
Considerando-se de fundamental importancia a avaliacao do comportamento dos atuais clones plantados nas condicoes ecologicas da regiao de Manaus, e objetivando-se selecionar os mais adaptados, 48 clones, em tres grupos de idades diferentes, estao sendo testados no Campo Expeimental do CNPSD, em ensaios estabelecidos nos anos de 1971, 1978 e 1979. Dos resultados apresentados, tres clones vem demonstrando boa potencia em vigor e producao: Fx 4098, apresentando producao superior a Fx 3899, IAN 6158 e IAN 6323 (os quais, embora ainda nao se tenha qualquer resultado de producao, estao apresentando destacado vigor). Tais clones continuarao a ser observados periodicamente, para que se possa fazer futuras recomendacoes com base nas informacoes adicionais obtidas. |
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Palavras-Chave: |
Amazonas; Brasil; Comportamento; Rubber tree; Species; Yield. |
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Thesagro: |
Clone; Espécie; Hevea; Seringueira. |
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Thesaurus Nal: |
clones. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/76111/1/CPAA-PESQ.-AND.-12-82.pdf
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Marc: |
LEADER 01582nam a2200325 a 4500
001 1665360
005 2013-08-22
008 1982 bl uuuu u0uu1 u #d
022 $a0101-2118
100 1 $aPAIVA, J. R. de
245 $aComportamento preliminar de alguns clones de seringueira em Manaus.
260 $aManaus: EMBRAPA-CNPSD$c1982
300 $a5 p.
490 $a(EMBRAPA-CNPSD. Pesquisa em Andamento, 12).
520 $aConsiderando-se de fundamental importancia a avaliacao do comportamento dos atuais clones plantados nas condicoes ecologicas da regiao de Manaus, e objetivando-se selecionar os mais adaptados, 48 clones, em tres grupos de idades diferentes, estao sendo testados no Campo Expeimental do CNPSD, em ensaios estabelecidos nos anos de 1971, 1978 e 1979. Dos resultados apresentados, tres clones vem demonstrando boa potencia em vigor e producao: Fx 4098, apresentando producao superior a Fx 3899, IAN 6158 e IAN 6323 (os quais, embora ainda nao se tenha qualquer resultado de producao, estao apresentando destacado vigor). Tais clones continuarao a ser observados periodicamente, para que se possa fazer futuras recomendacoes com base nas informacoes adicionais obtidas.
650 $aclones
650 $aClone
650 $aEspécie
650 $aHevea
650 $aSeringueira
653 $aAmazonas
653 $aBrasil
653 $aComportamento
653 $aRubber tree
653 $aSpecies
653 $aYield
700 1 $aGONÇALVES, P. de S.
700 1 $aTRINDADE, D. R.
700 1 $aVALOIS, A. C. C.
700 1 $aVIÉGAS, I. de J. M.
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Registro original: |
Embrapa Amazônia Ocidental (CPAA) |
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Biblioteca |
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Origem |
Tipo/Formato |
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Registro Completo
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Biblioteca(s): |
Embrapa Meio Ambiente. |
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Data corrente: |
04/10/2006 |
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Data da última atualização: |
05/09/2017 |
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Tipo da produção científica: |
Artigo em Anais de Congresso |
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Autoria: |
COSTA, F. de S.; LIMA, M. A. de; BAYER, C.; FRIGHETTO, R. T. S.; BOHNEN, H.; MACEDO, V. R. M.; MARCOLIN, E. |
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Afiliação: |
F. de S. COSTA; MAGDA APARECIDA DE LIMA, CNPMA; C. BAYER; ROSA TOYOKO SHIRAISHI FRIGHETTO, CNPMA; H. BOHNEN; V. R. M. MACEDO; E. MARCOLIN. |
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Título: |
Methane emissions from a flooded rice field in the south of Brazil. |
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Ano de publicação: |
2003 |
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Fonte/Imprenta: |
In: INTERNATIONAL METHANE AND NITROUS OXIDE MITIGATION CONFERENCE, 3., 2003, Beijing. Proceedings... Beijing: China Coal Information Institute, 2003. p. 190-197. |
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Idioma: |
Inglês |
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Conteúdo: |
The State of Rio Grande do Sul in Brazil cultivates about 1Mha of rice in paddy fields. The soils are prepared using either conventional tillage (CT, 41% of the area) or no tillage (NT, 14% of area), the remaining falling in a mixed soil-preparation category. The outcomes of the current study represent the first evaluation of CH4 emissions from flooded rice fields in the south of Brazil. This information will feed the Brazilian greenhouse gas inventory. The study was carried out from January through March 2003 at the IRGA experimental station located in the municipality of Cachoerinha, Rio Grande do Sul, Brazil. Rice has been cultivated in this Gleisol area since 1994 using either the CT or NT system. The closed chamber method was used to collect air samples from 9:00 AM to 12:00 Noon on a weekly basis or in 24-hour campaigns; samples were analyzed using gas chromatography. Soil and plant parameters were also measured in order to determine which ecosystem factors affect CH4 emissions from the soil into the atmosphere. Along the period, CH4 emission rates varied from 24 to 703 mg m-2 day-1. NT plot emissions were initially greater than those from the CT plot, probably due to having maintained the crop residues on the surface of soil in the NT system. Nevertheless, CH4 emission rates in the CT plot were higher than in the NT plot 14 days after flooding, probably due to the higher root mass in the deeper soil layer in the NT system. The close relationship (P<0.01) found between CH4 emissions and soil temperature in both systems explains 60% of CH4 emissions. Total CH4 emissions were 33 and 22 g m-2 in the CT and NT systems, respectively. The emission variation between the soil preparation systems corresponds to 2,860 kg ha-1 CO2 equivalents. Moreover, this reduction represents 0.8 Mg ha-1 yr-1 C equivalents, greater than the average value of 0.58 Mg C ha-1 year-1 for C sequestration in agricultural soils in the subtropical region of Brazil. The 24-hour campaign emissions produced a sigmoid curve into both the atmosphere and the chamber, albeit with an inverse relationship. The 24-hour emissions were controlled by the soil and flood-water temperatures. MenosThe State of Rio Grande do Sul in Brazil cultivates about 1Mha of rice in paddy fields. The soils are prepared using either conventional tillage (CT, 41% of the area) or no tillage (NT, 14% of area), the remaining falling in a mixed soil-preparation category. The outcomes of the current study represent the first evaluation of CH4 emissions from flooded rice fields in the south of Brazil. This information will feed the Brazilian greenhouse gas inventory. The study was carried out from January through March 2003 at the IRGA experimental station located in the municipality of Cachoerinha, Rio Grande do Sul, Brazil. Rice has been cultivated in this Gleisol area since 1994 using either the CT or NT system. The closed chamber method was used to collect air samples from 9:00 AM to 12:00 Noon on a weekly basis or in 24-hour campaigns; samples were analyzed using gas chromatography. Soil and plant parameters were also measured in order to determine which ecosystem factors affect CH4 emissions from the soil into the atmosphere. Along the period, CH4 emission rates varied from 24 to 703 mg m-2 day-1. NT plot emissions were initially greater than those from the CT plot, probably due to having maintained the crop residues on the surface of soil in the NT system. Nevertheless, CH4 emission rates in the CT plot were higher than in the NT plot 14 days after flooding, probably due to the higher root mass in the deeper soil layer in the NT system. The close relationship (P<0.01) found between... Mostrar Tudo |
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Thesagro: |
Arroz; Metano. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/163485/1/Costa-methane.pdf
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Marc: |
LEADER 02877nam a2200205 a 4500
001 1015069
005 2017-09-05
008 2003 bl uuuu u00u1 u #d
100 1 $aCOSTA, F. de S.
245 $aMethane emissions from a flooded rice field in the south of Brazil.$h[electronic resource]
260 $aIn: INTERNATIONAL METHANE AND NITROUS OXIDE MITIGATION CONFERENCE, 3., 2003, Beijing. Proceedings... Beijing: China Coal Information Institute, 2003. p. 190-197.$c2003
520 $aThe State of Rio Grande do Sul in Brazil cultivates about 1Mha of rice in paddy fields. The soils are prepared using either conventional tillage (CT, 41% of the area) or no tillage (NT, 14% of area), the remaining falling in a mixed soil-preparation category. The outcomes of the current study represent the first evaluation of CH4 emissions from flooded rice fields in the south of Brazil. This information will feed the Brazilian greenhouse gas inventory. The study was carried out from January through March 2003 at the IRGA experimental station located in the municipality of Cachoerinha, Rio Grande do Sul, Brazil. Rice has been cultivated in this Gleisol area since 1994 using either the CT or NT system. The closed chamber method was used to collect air samples from 9:00 AM to 12:00 Noon on a weekly basis or in 24-hour campaigns; samples were analyzed using gas chromatography. Soil and plant parameters were also measured in order to determine which ecosystem factors affect CH4 emissions from the soil into the atmosphere. Along the period, CH4 emission rates varied from 24 to 703 mg m-2 day-1. NT plot emissions were initially greater than those from the CT plot, probably due to having maintained the crop residues on the surface of soil in the NT system. Nevertheless, CH4 emission rates in the CT plot were higher than in the NT plot 14 days after flooding, probably due to the higher root mass in the deeper soil layer in the NT system. The close relationship (P<0.01) found between CH4 emissions and soil temperature in both systems explains 60% of CH4 emissions. Total CH4 emissions were 33 and 22 g m-2 in the CT and NT systems, respectively. The emission variation between the soil preparation systems corresponds to 2,860 kg ha-1 CO2 equivalents. Moreover, this reduction represents 0.8 Mg ha-1 yr-1 C equivalents, greater than the average value of 0.58 Mg C ha-1 year-1 for C sequestration in agricultural soils in the subtropical region of Brazil. The 24-hour campaign emissions produced a sigmoid curve into both the atmosphere and the chamber, albeit with an inverse relationship. The 24-hour emissions were controlled by the soil and flood-water temperatures.
650 $aArroz
650 $aMetano
700 1 $aLIMA, M. A. de
700 1 $aBAYER, C.
700 1 $aFRIGHETTO, R. T. S.
700 1 $aBOHNEN, H.
700 1 $aMACEDO, V. R. M.
700 1 $aMARCOLIN, E.
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Registro original: |
Embrapa Meio Ambiente (CNPMA) |
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