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Biblioteca(s): |
Embrapa Mandioca e Fruticultura. |
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Data corrente: |
16/05/2016 |
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Data da última atualização: |
16/05/2016 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
OLIVEIRA, F. É. R. de; OLIVEIRA, J. de M.; XAVIER, F. A. da S. |
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Afiliação: |
FRANCISCO ÉDER RODRIGUES DE OLIVEIRA; JUDYSON DE MATOS OLIVEIRA; FRANCISCO ALISSON DA SILVA XAVIER, CNPMF. |
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Título: |
Changes in Soil Organic Carbon Fractions in Response to Cover Crops in an Orange Orchard. . |
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Ano de publicação: |
2016 |
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Fonte/Imprenta: |
Revista Brasileira de Ciência do Solo, v. 40, 2016. |
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DOI: |
10.1590/18069657rbcs20150105 |
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Idioma: |
Inglês |
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Conteúdo: |
The cultivation of cover crops intercropped with fruit trees is an alternative to maintain mulch cover between plant rows and increase soil organic carbon (C) stocks. The objective of this study was to evaluate changes in soil total organic C content and labile organic matter fractions in response to cover crop cultivation in an orange orchard. The experiment was performed in the state of Bahia, in a citrus orchard with cultivar ?Pera? orange (Citrus sinensis) at a spacing of 6 × 4 m. A randomized complete block design with three replications was used. The following species were used as cover crops: Brachiaria (Brachiaria decumbes) ? BRAQ, pearl millet (Pennisetum glaucum) ? MIL, jack bean (Canavalia ensiformis) ? JB, blend (50 % each) of jack bean + millet (JB/MIL), and spontaneous vegetation (SPV). The cover crops were broadcast-seeded between the rows of orange trees and mechanically mowed after flowering. Soil sampling at depths of 0.00-0.10, 0.10-0.20, and 0.20-0.40 m was performed in small soil trenches. The total soil organic C (SOC) content, light fraction (LF), and the particulate organic C (POC), and oxidizable organic C fractions were estimated. Total soil organic C content was not significantly changed by the cover crops, indicating low sensitivity in reacting to recent changes in soil organic matter due to management practices. Grasses enabled a greater accumulation of SOC stocks in 0.00-0.40 m compared to all other treatments. Jack bean cultivation increased LF and the most labile oxidizable organic C fraction (F1) in the soil surface and the deepest layer tested. Cover crop cultivation increased labile C in the 0.00-0.10 m layer, which can enhance soil microbial activity and nutrient absorption by the citrus trees. The fractions LF and F1 may be suitable indicators for monitoring changes in soil organic matter content due to changes in soil management practices. MenosThe cultivation of cover crops intercropped with fruit trees is an alternative to maintain mulch cover between plant rows and increase soil organic carbon (C) stocks. The objective of this study was to evaluate changes in soil total organic C content and labile organic matter fractions in response to cover crop cultivation in an orange orchard. The experiment was performed in the state of Bahia, in a citrus orchard with cultivar ?Pera? orange (Citrus sinensis) at a spacing of 6 × 4 m. A randomized complete block design with three replications was used. The following species were used as cover crops: Brachiaria (Brachiaria decumbes) ? BRAQ, pearl millet (Pennisetum glaucum) ? MIL, jack bean (Canavalia ensiformis) ? JB, blend (50 % each) of jack bean + millet (JB/MIL), and spontaneous vegetation (SPV). The cover crops were broadcast-seeded between the rows of orange trees and mechanically mowed after flowering. Soil sampling at depths of 0.00-0.10, 0.10-0.20, and 0.20-0.40 m was performed in small soil trenches. The total soil organic C (SOC) content, light fraction (LF), and the particulate organic C (POC), and oxidizable organic C fractions were estimated. Total soil organic C content was not significantly changed by the cover crops, indicating low sensitivity in reacting to recent changes in soil organic matter due to management practices. Grasses enabled a greater accumulation of SOC stocks in 0.00-0.40 m compared to all other treatments. Jack bean cultivation increased LF... Mostrar Tudo |
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Thesagro: |
Fruta cítrica. |
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Thesaurus Nal: |
Citrus. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02484naa a2200181 a 4500
001 2045136
005 2016-05-16
008 2016 bl uuuu u00u1 u #d
024 7 $a10.1590/18069657rbcs20150105$2DOI
100 1 $aOLIVEIRA, F. É. R. de
245 $aChanges in Soil Organic Carbon Fractions in Response to Cover Crops in an Orange Orchard. .$h[electronic resource]
260 $c2016
520 $aThe cultivation of cover crops intercropped with fruit trees is an alternative to maintain mulch cover between plant rows and increase soil organic carbon (C) stocks. The objective of this study was to evaluate changes in soil total organic C content and labile organic matter fractions in response to cover crop cultivation in an orange orchard. The experiment was performed in the state of Bahia, in a citrus orchard with cultivar ?Pera? orange (Citrus sinensis) at a spacing of 6 × 4 m. A randomized complete block design with three replications was used. The following species were used as cover crops: Brachiaria (Brachiaria decumbes) ? BRAQ, pearl millet (Pennisetum glaucum) ? MIL, jack bean (Canavalia ensiformis) ? JB, blend (50 % each) of jack bean + millet (JB/MIL), and spontaneous vegetation (SPV). The cover crops were broadcast-seeded between the rows of orange trees and mechanically mowed after flowering. Soil sampling at depths of 0.00-0.10, 0.10-0.20, and 0.20-0.40 m was performed in small soil trenches. The total soil organic C (SOC) content, light fraction (LF), and the particulate organic C (POC), and oxidizable organic C fractions were estimated. Total soil organic C content was not significantly changed by the cover crops, indicating low sensitivity in reacting to recent changes in soil organic matter due to management practices. Grasses enabled a greater accumulation of SOC stocks in 0.00-0.40 m compared to all other treatments. Jack bean cultivation increased LF and the most labile oxidizable organic C fraction (F1) in the soil surface and the deepest layer tested. Cover crop cultivation increased labile C in the 0.00-0.10 m layer, which can enhance soil microbial activity and nutrient absorption by the citrus trees. The fractions LF and F1 may be suitable indicators for monitoring changes in soil organic matter content due to changes in soil management practices.
650 $aCitrus
650 $aFruta cítrica
700 1 $aOLIVEIRA, J. de M.
700 1 $aXAVIER, F. A. da S.
773 $tRevista Brasileira de Ciência do Solo$gv. 40, 2016.
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Embrapa Mandioca e Fruticultura (CNPMF) |
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| Registros recuperados : 6 | |
| 3. |  | ROCHA, N. A. de S.; LEÃO, B. C. da S.; ACCORSI, M. F.; NOGUEIRA, E.; MINGOTI, G. Z. Bovine embryo culture in the presence of antioxidants: implications for blastocysts development, cryotolerance and levels of intracellular reactive oxygen species (ROS). Reproduction in Domestic Animals, v. 47, n. 4, p. 531, 2012. Publicado no: Proceedings of the 17th International Congress on Animal Reproduction (ICAR) Vancouver, Canada; 29 July - 2 August 2012.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Pantanal. |
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| 4. | | ROCHA, N. A. de S.; LEÃO, B. C. da S.; ACCORSI, M. F.; NOGUEIRA, E.; MINGOTI, G. Z. Cultivo in vitro de embriões bovinos na presença de antioxidantes: implicações sobre o desenvolvimento embrionário, criotolerância e níveis intracelulares de espécies reativas de oxigênio. In: REUNIÃO ANUAL DA SOCIEDADE BRASILEIRA DE TECNOLOGIA DE EMBRIÕES, 26., 2012, Foz do Iguaçu. Anais. Belo Horizonte: CBRA, 2012.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Pantanal. |
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| 5. | | LEÃO, B. C. da S.; NOGUEIRA, E.; ROCHA, N. A. de S.; ACCORSI, M. F.; NEVES, T. V.; MARCOS, M. T. de S.; CUNHA JUNIOR, G. F. da C.; MINGOTI, G. Z. Suplementação com antioxidantes durante a maturação aumenta a resistencia ao estresse oxidativo em embriões produzidos in vitro, mas não melhora a criotolerância. In: REUNIÃO ANUAL DA SOCIEDADE BRASILEIRA DE TECNOLOGIA DE EMBRIÕES, 26., 2012, Foz do Iguaçu. Anais. Belo Horizonte: CBRA, 2012. p. 498.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Pantanal. |
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| 6. | | LEÃO, B. C. da S.; NOGUEIRA, E.; ROCHA, N. A. de S.; ACCORSI, M. F.; NEVES, T. V.; MARCOS, M. T. de S.; CUNHA JUNIOR, G. F. da C.; MINGOTI, G. Z. Suplementação nutricional de novilhas nelore com ácidos graxos poliinsaturados: efeitos sobre a população folicular ovariana, recuperação e qualidade oocitária. In: REUNIÃO ANUAL DA SOCIEDADE BRASILEIRA DE TECNOLOGIA DE EMBRIÕES, 26., 2012, Foz do Iguaçu. Anais. Belo Horizonte: CBRA, 2012.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Pantanal. |
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| Registros recuperados : 6 | |
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| Nenhum registro encontrado para a expressão de busca informada. |
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