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Registro Completo |
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Biblioteca(s): |
Embrapa Agrossilvipastoril; Embrapa Florestas; Embrapa Unidades Centrais. |
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Data corrente: |
10/11/2016 |
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Data da última atualização: |
10/11/2016 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
REZENDE, F. A. de; SANTOS, V. A. H. F. dos; MAIA, C. M. B. de F.; MORALES, M. M. |
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Afiliação: |
FABIANA ABREU DE REZENDE, CPAMT; VICTOR ALEXANDRE HARDT FERREIRA DOS SANTOS, INPA; CLAUDIA MARIA BRANCO DE F MAIA, CNPF; MARINA MOURA MORALES, CNPF. |
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Título: |
Biochar in substrate composition for production of teak seedlings |
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Ano de publicação: |
2016 |
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Fonte/Imprenta: |
Pesquisa agropecuária brasileira, Brasília, v.51, n.9, p.1449-1456, set. 2016 |
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Idioma: |
Inglês
Português |
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Conteúdo: |
The objective of this work was to evaluate the development and quality of clonal seedlings of teak (Tectona grandis) grown in substrate with two types of biochar. The assay was carried out in a randomized complete block design, with ten treatments and four replicates: CS, commercial substrate, composed of pine bark and vermiculite at a ratio of 4:1; NS, nursery substrate composed of carbonized rice husk and coconut fiber at 1:1; and the remaining treatments were composed of the inclusions of biochar (BC) or activated biochar (BCA) in the CS, at the proportions of 25, 50, 75, and 100%. The development and quality parameters of seedlings were evaluated 90 days after striking the minicuttings in the substrates. BCA substrate additions at 25, 50, and 100% allowed for a development of height and stem diameter comparable to that of the NS. Biochar without the activation procedure does not improve quality parameters of seedlings, in comparison with the commercial substrate. The use of 25% activated biochar added to the commercial substrate is enough to improve seedling growth performance to the same level as that provided by the already validated NS. |
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Palavras-Chave: |
Agroindustrial waste; Pirólise; Qualidade de mudas; Resíduo agroindustrial; Seedling quality. |
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Thesagro: |
Tectona Grandis. |
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Thesaurus Nal: |
biochar; Pyrolysis. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/150770/1/Biochar-in-substrate-composition.pdf
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Marc: |
LEADER 01894naa a2200253 a 4500
001 2056174
005 2016-11-10
008 2016 bl uuuu u00u1 u #d
100 1 $aREZENDE, F. A. de
245 $aBiochar in substrate composition for production of teak seedlings
260 $c2016
520 $aThe objective of this work was to evaluate the development and quality of clonal seedlings of teak (Tectona grandis) grown in substrate with two types of biochar. The assay was carried out in a randomized complete block design, with ten treatments and four replicates: CS, commercial substrate, composed of pine bark and vermiculite at a ratio of 4:1; NS, nursery substrate composed of carbonized rice husk and coconut fiber at 1:1; and the remaining treatments were composed of the inclusions of biochar (BC) or activated biochar (BCA) in the CS, at the proportions of 25, 50, 75, and 100%. The development and quality parameters of seedlings were evaluated 90 days after striking the minicuttings in the substrates. BCA substrate additions at 25, 50, and 100% allowed for a development of height and stem diameter comparable to that of the NS. Biochar without the activation procedure does not improve quality parameters of seedlings, in comparison with the commercial substrate. The use of 25% activated biochar added to the commercial substrate is enough to improve seedling growth performance to the same level as that provided by the already validated NS.
650 $abiochar
650 $aPyrolysis
650 $aTectona Grandis
653 $aAgroindustrial waste
653 $aPirólise
653 $aQualidade de mudas
653 $aResíduo agroindustrial
653 $aSeedling quality
700 1 $aSANTOS, V. A. H. F. dos
700 1 $aMAIA, C. M. B. de F.
700 1 $aMORALES, M. M.
773 $tPesquisa agropecuária brasileira, Brasília$gv.51, n.9, p.1449-1456, set. 2016
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Registro original: |
Embrapa Agrossilvipastoril (CPAMT) |
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Voltar
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Soja. Para informações adicionais entre em contato com valeria.cardoso@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Soja. |
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Data corrente: |
30/11/2012 |
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Data da última atualização: |
31/07/2017 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 1 |
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Autoria: |
NIEMEYER, J. C.; NOGUEIRA, M. A.; CARVALHO, G. M.; COHIN-DE-PINHO, S .J.; OUTEIRO, U. S.; RODRIGUES, G. G.; SILVA, E. M. da; SOUSA, J. P. |
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Afiliação: |
JÚLIA CARINA NIEMEYER, Universidade Federal da Bahia; MARCO ANTONIO NOGUEIRA, CNPSO; State University of Santa Cruz; Universidade Federal da Bahia; Universidade Federal da Bahia; UFPE; Universidade Federal da Bahia; University of Coimbra. |
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Título: |
Functional and structural parameters to assess the ecological status of a metal contaminated area in the tropics. |
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Ano de publicação: |
2012 |
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Fonte/Imprenta: |
Ecotoxicology and Environmental Safety, v. 86, p. 188-197, 2012. |
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Idioma: |
Inglês |
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Conteúdo: |
Ecological parameters (soil invertebrates, microbial activity, and plant community) were assessed in a metal contaminated site in an abandoned lead smelter and non-contaminated reference sites, as part of an ecological risk assessment (ERA). Vegetation cover inside the smelter area was lower and presented a more homogenous species composition than outside. A more simplified and less abundant vegetation community within the smelter area also simplified the habitat conditions, which in addition to metal toxicity, impaired the soil microbial and faunal communities. A significant reduction in the feeding activity was observed within the smelter area. Also a significant change in community composition of surface dwelling invertebrates was observed at those sites when compared to sites outside the smelter area. Moreover, basal respiration, microbial biomass C, dehydrogenase and phosphatase activity also decreased in several of these points under the smelter area. As a result, a significant impairment of organic material decomposition in the most contaminated sites was observed. Metal contamination affected the ecological status of the site, leading to a risk for ecosystem functioning and provisioning of ecosystem services like organic matter decomposition and nutrient cycling, even 17 years after the end of smelting activities. Regarding the sensitivity of the ecological parameters assessed, most were able to distinguish sites within the smelter area boundaries from those outside. However, only bait lamina (feeding activity), basal respiration and microbial biomass carbon presented high capacity to distinguish the level of soil contamination, since they were significantly correlated with metal loadings, and thus are promising candidates to be integrated in the Ecological Line of Evidence of an ERA. MenosEcological parameters (soil invertebrates, microbial activity, and plant community) were assessed in a metal contaminated site in an abandoned lead smelter and non-contaminated reference sites, as part of an ecological risk assessment (ERA). Vegetation cover inside the smelter area was lower and presented a more homogenous species composition than outside. A more simplified and less abundant vegetation community within the smelter area also simplified the habitat conditions, which in addition to metal toxicity, impaired the soil microbial and faunal communities. A significant reduction in the feeding activity was observed within the smelter area. Also a significant change in community composition of surface dwelling invertebrates was observed at those sites when compared to sites outside the smelter area. Moreover, basal respiration, microbial biomass C, dehydrogenase and phosphatase activity also decreased in several of these points under the smelter area. As a result, a significant impairment of organic material decomposition in the most contaminated sites was observed. Metal contamination affected the ecological status of the site, leading to a risk for ecosystem functioning and provisioning of ecosystem services like organic matter decomposition and nutrient cycling, even 17 years after the end of smelting activities. Regarding the sensitivity of the ecological parameters assessed, most were able to distinguish sites within the smelter area ... Mostrar Tudo |
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Thesagro: |
Vegetação. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02540naa a2200217 a 4500
001 1940883
005 2017-07-31
008 2012 bl uuuu u00u1 u #d
100 1 $aNIEMEYER, J. C.
245 $aFunctional and structural parameters to assess the ecological status of a metal contaminated area in the tropics.$h[electronic resource]
260 $c2012
520 $aEcological parameters (soil invertebrates, microbial activity, and plant community) were assessed in a metal contaminated site in an abandoned lead smelter and non-contaminated reference sites, as part of an ecological risk assessment (ERA). Vegetation cover inside the smelter area was lower and presented a more homogenous species composition than outside. A more simplified and less abundant vegetation community within the smelter area also simplified the habitat conditions, which in addition to metal toxicity, impaired the soil microbial and faunal communities. A significant reduction in the feeding activity was observed within the smelter area. Also a significant change in community composition of surface dwelling invertebrates was observed at those sites when compared to sites outside the smelter area. Moreover, basal respiration, microbial biomass C, dehydrogenase and phosphatase activity also decreased in several of these points under the smelter area. As a result, a significant impairment of organic material decomposition in the most contaminated sites was observed. Metal contamination affected the ecological status of the site, leading to a risk for ecosystem functioning and provisioning of ecosystem services like organic matter decomposition and nutrient cycling, even 17 years after the end of smelting activities. Regarding the sensitivity of the ecological parameters assessed, most were able to distinguish sites within the smelter area boundaries from those outside. However, only bait lamina (feeding activity), basal respiration and microbial biomass carbon presented high capacity to distinguish the level of soil contamination, since they were significantly correlated with metal loadings, and thus are promising candidates to be integrated in the Ecological Line of Evidence of an ERA.
650 $aVegetação
700 1 $aNOGUEIRA, M. A.
700 1 $aCARVALHO, G. M.
700 1 $aCOHIN-DE-PINHO, S .J.
700 1 $aOUTEIRO, U. S.
700 1 $aRODRIGUES, G. G.
700 1 $aSILVA, E. M. da
700 1 $aSOUSA, J. P.
773 $tEcotoxicology and Environmental Safety$gv. 86, p. 188-197, 2012.
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Embrapa Soja (CNPSO) |
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