|
Registro Completo |
|
Biblioteca(s): |
Embrapa Agricultura Digital. |
|
Data corrente: |
05/10/2011 |
|
Data da última atualização: |
05/01/2012 |
|
Tipo da produção científica: |
Artigo em Periódico Indexado |
|
Autoria: |
MARIN, F. R.; ANGELOCCI, L. R. |
|
Afiliação: |
FABIO RICARDO MARIN, CNPTIA; LUIZ ROBERTO ANGELOCCI, ESALQ/USP. |
|
Título: |
Irrigation requirements and transpiration coupling to the atmosphere of a citrus orchard in Southern Brazil. |
|
Ano de publicação: |
2011 |
|
Fonte/Imprenta: |
Agricultural Water Management, Amsterdam, v. 98, n. 6, p. 1091-1096, 2011. |
|
DOI: |
10.1016/j.agwat.2011.02.002 |
|
Idioma: |
Inglês |
|
Conteúdo: |
Crop evapotranspiration (ETc) was measured as evaporative heat flux from an irrigated acid lime orchard (Citrus latifolia Tanaka) using the aerodynamic method. Crop transpiration (T) was determined by a stem heat balance method. The irrigation requirements were determined by comparing the orchard evapotranspiration (ETc) and T with the reference evapotranspiration (ETo) derived from the Penman-Monteith equation, and the irrigation requirements were expressed as ETc/ETo (Kc) and T/ETo (Kcb) ratios. The influence of inter-row vegetation on the ETc was analyzed because the measurements were taken during the summer and winter, hich are periods with different regional soil water content. In this study, the average Kc values obtained were 0.65 and 0.24 for the summer and winter, respectively. The strong coupling of citrus trees to the atmosphere and the sensitivity of citrus plants to large vapor pressure de?cits and air/leaf temperatures caused variations in the Kcb in relation to the ETo ranges. During the summer, the Kcb value ranged from 0.34 when the ETo exceeded 5 mm d?1 to 0.46 when the ETo was less than 3 mm d-1 . |
|
Palavras-Chave: |
Acoplamento planta-atmosfera; Condutância estomática; Micrometeorologia. |
|
Thesagro: |
Irrigação; Microaspersão. |
|
Thesaurus Nal: |
Irrigation; Leaf conductance; Sprinkler irrigation; Weather. |
|
Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
|
Marc: |
LEADER 01943naa a2200253 a 4500
001 1902386
005 2012-01-05
008 2011 bl uuuu u00u1 u #d
024 7 $a10.1016/j.agwat.2011.02.002$2DOI
100 1 $aMARIN, F. R.
245 $aIrrigation requirements and transpiration coupling to the atmosphere of a citrus orchard in Southern Brazil.$h[electronic resource]
260 $c2011
520 $aCrop evapotranspiration (ETc) was measured as evaporative heat flux from an irrigated acid lime orchard (Citrus latifolia Tanaka) using the aerodynamic method. Crop transpiration (T) was determined by a stem heat balance method. The irrigation requirements were determined by comparing the orchard evapotranspiration (ETc) and T with the reference evapotranspiration (ETo) derived from the Penman-Monteith equation, and the irrigation requirements were expressed as ETc/ETo (Kc) and T/ETo (Kcb) ratios. The influence of inter-row vegetation on the ETc was analyzed because the measurements were taken during the summer and winter, hich are periods with different regional soil water content. In this study, the average Kc values obtained were 0.65 and 0.24 for the summer and winter, respectively. The strong coupling of citrus trees to the atmosphere and the sensitivity of citrus plants to large vapor pressure de?cits and air/leaf temperatures caused variations in the Kcb in relation to the ETo ranges. During the summer, the Kcb value ranged from 0.34 when the ETo exceeded 5 mm d?1 to 0.46 when the ETo was less than 3 mm d-1 .
650 $aIrrigation
650 $aLeaf conductance
650 $aSprinkler irrigation
650 $aWeather
650 $aIrrigação
650 $aMicroaspersão
653 $aAcoplamento planta-atmosfera
653 $aCondutância estomática
653 $aMicrometeorologia
700 1 $aANGELOCCI, L. R.
773 $tAgricultural Water Management, Amsterdam$gv. 98, n. 6, p. 1091-1096, 2011.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Agricultura Digital (CNPTIA) |
