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Biblioteca Rui Tendinha. |
Data corrente: |
14/07/2015 |
Data da última atualização: |
23/10/2015 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
PADOVAN, M. da P.; CORTEZ, V. J.; NAVARRETE, L. F.; NAVARRETE, E. D.; DEFFNER, A. C.; CENTENO, L. G.; MUNGUÍA, R.; BARRIOS, M.; VÍLCHEZ-MENDOZA, J. S.; VEGA-JARQUÍN, C.; COSTA, A. N. da.; BROOK, R. M.; RAPIDEL, B. |
Afiliação: |
Maria da Penha Padovan, Incaper; CORTEZ, V. J.; Aureliano Nogueira da Costa, Incaper. |
Título: |
Root distribution and water use in coffee shaded with Tabebuia rosea Bertol. and Simarouba glauca DC. compared to full sun coffee in sub-optimal environmental conditions. |
Ano de publicação: |
2015 |
Fonte/Imprenta: |
Agroforestry Systems, v. 89, p. 743-749, 2015. |
Idioma: |
Inglês |
Conteúdo: |
Root niche differentiation for optimal exploitation of resources was found in an arabica coffee agroforestry system in Nicaragua. Rooting behavior was compared in both unshaded (FS) and shaded (AFS) coffee combined with two previously untested tropical timber species (deciduous Tabebuia rosea Bertol. and evergreen Simarouba glauca DC.). The predominant andisol possesses a compacted soil layer (talpetate). The study was conducted in sub-optimal environmental conditions for coffee cultivation (455 m.a.s.l., annual mean 27 °C, 1300 mm rainfall/year, 6 months dry season) in Nicaragua. Twelve and five trenches 200 cm deep were dug in AFS and FS respectively. Roots per unit area were counted on two perpendicular soil faces. Volumetric water was measured continuously over 2 years by using 45 reflectometers in different soil layers. The talpetate varied greatly in depth, thickness and physical structure. Coffee fine roots were more abundant than tree roots and were concentrated in the shallower strata (0?80 cm) whilst tree roots proliferated more below 100 cm. The S. glauca root system was denser below 100 cm than T. rosea root system. There was no meaningful difference in coffee root counts in FS and under T. rosea, but coffee root counts were higher near S. glauca trees. 2012 and 2014 had mild dry seasons and whole profile soil water content was similar in FS and AFS, but in the 2013 severe dry period volumetric water and water uptake were lower in AFS than in FS. This indicates that the normal advantage of greater soil exploration in AFS was cancelled presumably due to continued water uptake by deep rooting trees whereas the FS still had available water. MenosRoot niche differentiation for optimal exploitation of resources was found in an arabica coffee agroforestry system in Nicaragua. Rooting behavior was compared in both unshaded (FS) and shaded (AFS) coffee combined with two previously untested tropical timber species (deciduous Tabebuia rosea Bertol. and evergreen Simarouba glauca DC.). The predominant andisol possesses a compacted soil layer (talpetate). The study was conducted in sub-optimal environmental conditions for coffee cultivation (455 m.a.s.l., annual mean 27 °C, 1300 mm rainfall/year, 6 months dry season) in Nicaragua. Twelve and five trenches 200 cm deep were dug in AFS and FS respectively. Roots per unit area were counted on two perpendicular soil faces. Volumetric water was measured continuously over 2 years by using 45 reflectometers in different soil layers. The talpetate varied greatly in depth, thickness and physical structure. Coffee fine roots were more abundant than tree roots and were concentrated in the shallower strata (0?80 cm) whilst tree roots proliferated more below 100 cm. The S. glauca root system was denser below 100 cm than T. rosea root system. There was no meaningful difference in coffee root counts in FS and under T. rosea, but coffee root counts were higher near S. glauca trees. 2012 and 2014 had mild dry seasons and whole profile soil water content was similar in FS and AFS, but in the 2013 severe dry period volumetric water and water uptake were lower in AFS than in FS. This indicates t... Mostrar Tudo |
Palavras-Chave: |
Agriculture; Forestry. |
Categoria do assunto: |
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Marc: |
LEADER 02577naa a2200289 a 4500 001 1006688 005 2015-10-23 008 2015 bl uuuu u00u1 u #d 100 1 $aPADOVAN, M. da P. 245 $aRoot distribution and water use in coffee shaded with Tabebuia rosea Bertol. and Simarouba glauca DC. compared to full sun coffee in sub-optimal environmental conditions.$h[electronic resource] 260 $c2015 520 $aRoot niche differentiation for optimal exploitation of resources was found in an arabica coffee agroforestry system in Nicaragua. Rooting behavior was compared in both unshaded (FS) and shaded (AFS) coffee combined with two previously untested tropical timber species (deciduous Tabebuia rosea Bertol. and evergreen Simarouba glauca DC.). The predominant andisol possesses a compacted soil layer (talpetate). The study was conducted in sub-optimal environmental conditions for coffee cultivation (455 m.a.s.l., annual mean 27 °C, 1300 mm rainfall/year, 6 months dry season) in Nicaragua. Twelve and five trenches 200 cm deep were dug in AFS and FS respectively. Roots per unit area were counted on two perpendicular soil faces. Volumetric water was measured continuously over 2 years by using 45 reflectometers in different soil layers. The talpetate varied greatly in depth, thickness and physical structure. Coffee fine roots were more abundant than tree roots and were concentrated in the shallower strata (0?80 cm) whilst tree roots proliferated more below 100 cm. The S. glauca root system was denser below 100 cm than T. rosea root system. There was no meaningful difference in coffee root counts in FS and under T. rosea, but coffee root counts were higher near S. glauca trees. 2012 and 2014 had mild dry seasons and whole profile soil water content was similar in FS and AFS, but in the 2013 severe dry period volumetric water and water uptake were lower in AFS than in FS. This indicates that the normal advantage of greater soil exploration in AFS was cancelled presumably due to continued water uptake by deep rooting trees whereas the FS still had available water. 653 $aAgriculture 653 $aForestry 700 1 $aCORTEZ, V. J. 700 1 $aNAVARRETE, L. F. 700 1 $aNAVARRETE, E. D. 700 1 $aDEFFNER, A. C. 700 1 $aCENTENO, L. G. 700 1 $aMUNGUÍA, R. 700 1 $aBARRIOS, M. 700 1 $aVÍLCHEZ-MENDOZA, J. S. 700 1 $aVEGA-JARQUÍN, C. 700 1 $aCOSTA, A. N. da. 700 1 $aBROOK, R. M. 700 1 $aRAPIDEL, B. 773 $tAgroforestry Systems$gv. 89, p. 743-749, 2015.
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Biblioteca Rui Tendinha (BRT) |
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Biblioteca(s): |
Biblioteca Rui Tendinha. |
Data corrente: |
16/03/2016 |
Data da última atualização: |
16/03/2016 |
Tipo da produção científica: |
Artigo |
Autoria: |
GUERRERO, J. S. J.; TEIXEIRA, S. M.; PACOVA, B. E. V.; DESSAUNE FILHO, N. |
Afiliação: |
UFV; EMBRAPA/CNPAF; Braz Eduardo Vieira Pacova, EMCAPA; Nilton Dessaune Filho, EMCAPA. |
Título: |
Configuração das formas de produção de feijão e sua dimensão tecnológica no estado do Espírito Santo. |
Ano de publicação: |
1990 |
Fonte/Imprenta: |
In: REUNIÃO NACIONAL DE PESQUISA DE FEIJÃO, 3., 1990, Vitória. Resumos. Vitória, ES : EMCAPA, p. 25, 1990. (EMCAPA. Documentos, 62). |
Idioma: |
Português |
Palavras-Chave: |
Configuração das formas de produção de feijão e sua dimensão tecnológica; Congresso; EMCAPA; Estado do Espírito Santo; Formas de produção de feijão; Produção de feijão e sua dimensão tecnológica; Série Documentos. |
Categoria do assunto: |
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URL: |
http://biblioteca.incaper.es.gov.br/digital/bitstream/item/1712/1/BRT-doc62-reuniaonacionaldepesquisadefeijao-Emcapa.pdf
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Marc: |
LEADER 00901nam a2200217 a 4500 001 1010222 005 2016-03-16 008 1990 bl uuuu u01u1 u #d 100 1 $aGUERRERO, J. S. J. 245 $aConfiguração das formas de produção de feijão e sua dimensão tecnológica no estado do Espírito Santo.$h[electronic resource] 260 $aIn: REUNIÃO NACIONAL DE PESQUISA DE FEIJÃO, 3., 1990, Vitória. Resumos. Vitória, ES : EMCAPA, p. 25, 1990. (EMCAPA. Documentos, 62).$c1990 653 $aConfiguração das formas de produção de feijão e sua dimensão tecnológica 653 $aCongresso 653 $aEMCAPA 653 $aEstado do Espírito Santo 653 $aFormas de produção de feijão 653 $aProdução de feijão e sua dimensão tecnológica 653 $aSérie Documentos 700 1 $aTEIXEIRA, S. M. 700 1 $aPACOVA, B. E. V. 700 1 $aDESSAUNE FILHO, N.
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