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![](/web/img/deny.png) | Acesso ao texto completo restrito à biblioteca da Biblioteca Rui Tendinha. Para informações adicionais entre em contato com biblioteca@incaper.es.gov.br. |
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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: |
-- |
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: |
25/02/2016 |
Data da última atualização: |
31/03/2016 |
Autoria: |
ALVES, F. de L.; CUNHA SOBRINHO, A. P. da.; POMPEU JUNIOR, J.; COSTA, H.; FULLIN, E. A.; FORNAZIER, M. J.; COSTA, W. |
Afiliação: |
Flavio de Lima Alves, EMCAPA; Helcio Costa, EMCAPA; Eli Antonio Fullin, EMCAPA; Mauricio José Fornazier, EMCAPA; Walnei Costa, EMCAPA. |
Título: |
Produção de borbulhas selecionadas de Citrus no Estado do Espírito Santo. |
Ano de publicação: |
1992 |
Fonte/Imprenta: |
Vitória, ES: Emcapa, 1992. |
Série: |
(EMCAPA. Documentos, 75). |
ISSN: |
0101-5949 |
Idioma: |
Português |
Conteúdo: |
Com base em resultados experimentais obtidos ao longo de 12 anos de pesquisa, a EMCAPA implantou, em agosto de 1991, o Projeto de Multiplicação de Borbulhas de Citrus spp., cuja meta, prevista até o final de 1994, é a produção de dois milhões de borbulhas obtidas a partir de uma borbulheira com 2.500 mudas, instalada na Fazenda Experimental de Viana. |
Palavras-Chave: |
Borbulhas; Borbulheira; Citrus; Mudas citricas. |
Categoria do assunto: |
-- |
URL: |
http://biblioteca.incaper.es.gov.br/digital/bitstream/item/1531/1/BRT-doc75-producaodeborbulhasselecionadasdecitros-Emcapa.pdf
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Marc: |
LEADER 01033nam a2200253 a 4500 001 1009986 005 2016-03-31 008 1992 bl uuuu u0uu1 u #d 022 $a0101-5949 100 1 $aALVES, F. de L. 245 $aProdução de borbulhas selecionadas de Citrus no Estado do Espírito Santo. 260 $aVitória, ES: Emcapa$c1992 490 $a(EMCAPA. Documentos, 75). 520 $aCom base em resultados experimentais obtidos ao longo de 12 anos de pesquisa, a EMCAPA implantou, em agosto de 1991, o Projeto de Multiplicação de Borbulhas de Citrus spp., cuja meta, prevista até o final de 1994, é a produção de dois milhões de borbulhas obtidas a partir de uma borbulheira com 2.500 mudas, instalada na Fazenda Experimental de Viana. 653 $aBorbulhas 653 $aBorbulheira 653 $aCitrus 653 $aMudas citricas 700 1 $aCUNHA SOBRINHO, A. P. da. 700 1 $aPOMPEU JUNIOR, J. 700 1 $aCOSTA, H. 700 1 $aFULLIN, E. A. 700 1 $aFORNAZIER, M. J. 700 1 $aCOSTA, W.
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