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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: |
DEMARCHI, J. J. A. A.; MANELLA, M. Q.; LOURENÇO, A. J.; ALLEONI, G. F.; FRIGHETTO, R. T. S.; PRIMAVESI, O.; LIMA, M. A. de. |
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Afiliação: |
J. J. A. A. DEMARCHI; M. Q. MANELLA; A. J. LOURENÇO; G. F. ALLEONI; ROSA TOYOKO SHIRAISHI FRIGHETTO, CNPMA; Oto PRIMAVESI; MAGDA APARECIDA DE LIMA, CNPMA. |
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Título: |
Preliminary results on methane emission by nelore cattle in Brazil grazing Brachiaria brizantha cv. Marandu. |
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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. 80-84. |
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Idioma: |
Inglês |
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Conteúdo: |
Methane emissions by Nelore cattle grazing Brachiaria brizantha were monitored during winter (August) and spring (December) seasons. Sixteen Nelore steers with live weight (LW) varying from 206 to 525 kg, 196 to 538kg during winter and spring, respectively. Methane emissions were measured with the sulfur hexafluoride (SF6) technique. Mean methane emissions were 102.3 and 136.5 g/animal/day and 0.343 and 0.420 g/kg LW/day in winter and spring, respectively. The mean emissions showed 39.7 and 35.3 g/kgDDMI for winter and spring seasons, respectively. For both seasons a high associative effect was observed of CH4 emissions and live weight (r=0.78 and r= 0.97, respectively) and DDMI (r= 0.73 and r=0.96, respectively). Relative methane emissions (g/kgLW) were inversely correlated with LW (r=-0.75 and -0.87 for winter and wet seasons, respectively). Variations in observed methane production among seasons were related to forage quality that affects digestibility and consumption. |
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Thesagro: |
Gado; 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/163488/1/Demarchi-preliminary.pdf
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Marc: |
LEADER 01729nam a2200205 a 4500
001 1015067
005 2017-09-05
008 2003 bl uuuu u00u1 u #d
100 1 $aDEMARCHI, J. J. A. A.
245 $aPreliminary results on methane emission by nelore cattle in Brazil grazing Brachiaria brizantha cv. Marandu.$h[electronic resource]
260 $aIn: INTERNATIONAL METHANE AND NITROUS OXIDE MITIGATION CONFERENCE, 3., 2003, Beijing. Proceedings... Beijing: China Coal Information Institute, 2003. p. 80-84.$c2003
520 $aMethane emissions by Nelore cattle grazing Brachiaria brizantha were monitored during winter (August) and spring (December) seasons. Sixteen Nelore steers with live weight (LW) varying from 206 to 525 kg, 196 to 538kg during winter and spring, respectively. Methane emissions were measured with the sulfur hexafluoride (SF6) technique. Mean methane emissions were 102.3 and 136.5 g/animal/day and 0.343 and 0.420 g/kg LW/day in winter and spring, respectively. The mean emissions showed 39.7 and 35.3 g/kgDDMI for winter and spring seasons, respectively. For both seasons a high associative effect was observed of CH4 emissions and live weight (r=0.78 and r= 0.97, respectively) and DDMI (r= 0.73 and r=0.96, respectively). Relative methane emissions (g/kgLW) were inversely correlated with LW (r=-0.75 and -0.87 for winter and wet seasons, respectively). Variations in observed methane production among seasons were related to forage quality that affects digestibility and consumption.
650 $aGado
650 $aMetano
700 1 $aMANELLA, M. Q.
700 1 $aLOURENÇO, A. J.
700 1 $aALLEONI, G. F.
700 1 $aFRIGHETTO, R. T. S.
700 1 $aPRIMAVESI, O.
700 1 $aLIMA, M. A. de
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Registro original: |
Embrapa Meio Ambiente (CNPMA) |
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Registro Completo
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Biblioteca(s): |
Embrapa Mandioca e Fruticultura. |
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Data corrente: |
24/09/2008 |
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Data da última atualização: |
09/09/2022 |
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Tipo da produção científica: |
Artigo em Anais de Congresso / Nota Técnica |
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Autoria: |
COTRIM, C. E.; COELHO, E. F.; COELHO FILHO, M. A.; RAMOS, M. M. |
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Afiliação: |
Carlos Elízio Cotrim, UFV; Eugênio Ferreira Coelho, CNPMF; Maurício Antônio Coelho Filho, CNPMF; Márcio Mota Ramos, UFV. |
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Título: |
Evapotranspiration of mango crop by water soil balance under a drip irrigation system. |
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Ano de publicação: |
2008 |
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Fonte/Imprenta: |
In: INTERNATIONAL CONFERENCE OF AGRICULTURAL ENGINEERING; BRAZILIAN CONGRESS OF AGRICULTURAL ENGINEERING, 38.; INTERNATIONAL LIVESTOCK ENVIRONMENT SYMPOSIUM, 8., 2008, Iguassu Falls. [Foz do Iguaçu]: CIGR, 2008. |
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Idioma: |
Inglês |
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Notas: |
PAP0428.pdf. |
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Conteúdo: |
The evapotranspiration of the mango crop was estimated by the soil water balance method in a drip irrigated mango orchard implanted in 1998. The experiment was carried out at Federal Agricultural Technical School of Guanambi located in the Irrigated Perimeter of Ceraima, Guanambi county, Bahia State. The works lasted 50 days (Period of budding to initial fruit growth). Soil water content was monitored by a data acquisition system with TDR, that made readings at 15- minute intervals in many locations of a grid in a vertical plane around the plant. Data were collected for plants irrigated with amounts of water equivalents to 100 % and 60 % of ETc (crop evapotranpiration), with and without covering the shaded area around plants. ETc and deep percolation varied according to distance from plant. There was a difference about 30% between ETc obtained with covered soil and bare soil for plants irrigated with 40% of reduction of water needs (ETc). The difference was about 10% in case of plants irrigated with no reduction of water needs. |
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Palavras-Chave: |
Mango. |
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Thesaurus NAL: |
evapotranspiration; water balance. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/655000/1/PAP0428.pdf
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Marc: |
LEADER 01777nam a2200193 a 4500
001 1655000
005 2022-09-09
008 2008 bl uuuu u00u1 u #d
100 1 $aCOTRIM, C. E.
245 $aEvapotranspiration of mango crop by water soil balance under a drip irrigation system.$h[electronic resource]
260 $aIn: INTERNATIONAL CONFERENCE OF AGRICULTURAL ENGINEERING; BRAZILIAN CONGRESS OF AGRICULTURAL ENGINEERING, 38.; INTERNATIONAL LIVESTOCK ENVIRONMENT SYMPOSIUM, 8., 2008, Iguassu Falls. [Foz do Iguaçu]: CIGR$c2008
500 $aPAP0428.pdf.
520 $aThe evapotranspiration of the mango crop was estimated by the soil water balance method in a drip irrigated mango orchard implanted in 1998. The experiment was carried out at Federal Agricultural Technical School of Guanambi located in the Irrigated Perimeter of Ceraima, Guanambi county, Bahia State. The works lasted 50 days (Period of budding to initial fruit growth). Soil water content was monitored by a data acquisition system with TDR, that made readings at 15- minute intervals in many locations of a grid in a vertical plane around the plant. Data were collected for plants irrigated with amounts of water equivalents to 100 % and 60 % of ETc (crop evapotranpiration), with and without covering the shaded area around plants. ETc and deep percolation varied according to distance from plant. There was a difference about 30% between ETc obtained with covered soil and bare soil for plants irrigated with 40% of reduction of water needs (ETc). The difference was about 10% in case of plants irrigated with no reduction of water needs.
650 $aevapotranspiration
650 $awater balance
653 $aMango
700 1 $aCOELHO, E. F.
700 1 $aCOELHO FILHO, M. A.
700 1 $aRAMOS, M. M.
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Registro original: |
Embrapa Mandioca e Fruticultura (CNPMF) |
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