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Registro Completo |
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Biblioteca(s): |
Embrapa Arroz e Feijão. |
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Data corrente: |
21/12/2021 |
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Data da última atualização: |
21/12/2021 |
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Autoria: |
CARVALHO, M. T. de M.; MADARI, B. E.; SANTOS, J. L. S. |
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Afiliação: |
MARCIA THAIS DE MELO CARVALHO, CNPAF; BEATA EMOKE MADARI, CNPAF; JANNE LOUIZE SOUZA SANTOS, Faculdades Unidas do Vale do Araguaia. |
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Título: |
Biochar as a soil conditioner in agricultural systems in the Cerrado. |
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Ano de publicação: |
2021 |
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Fonte/Imprenta: |
In: SOTTA, E. D.; SAMPAIO, F. G.; MARZALL, K.; SILVA, W. G. da (ed.). Adapting to climate change: strategies for brazilian agricultural and livestock system. Brasília, DF: MAPA, 2021. |
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Páginas: |
p. 80-81. |
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Idioma: |
Inglês |
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Conteúdo: |
This research work was carried out at the Capivara Farm of Embrapa Arroz e Feijão in Santo Antônio de Goiás, GO and at the Estrela do Sul Farm in the municipality of Nova Xavantina, MT. We tested the e!ects of incorporating biochar into the soil of upland rice and soybean production systems in the Cerrado. Here we refer to biochar as any type of material produced from carbonized vegetable waste in pyrolysis. Pyrolysis is seen as a promising approach to lowering the levels of CO2 in the atmosphere, as it is a fast and controlled way of transforming biomass that is re-deposited on agricultural soils at a slower decomposition rate than organic matter in the soil. |
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Thesagro: |
Arroz; Cerrado; Oryza Sativa; Resíduo; Sistema de Cultivo; Soja. |
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Thesaurus Nal: |
Biochar; Pyrolysis; Rice; Soybeans. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/229424/1/pl-2021-p80.pdf
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Marc: |
LEADER 01520naa a2200277 a 4500
001 2138139
005 2021-12-21
008 2021 bl uuuu u00u1 u #d
100 1 $aCARVALHO, M. T. de M.
245 $aBiochar as a soil conditioner in agricultural systems in the Cerrado.$h[electronic resource]
260 $c2021
300 $ap. 80-81.
520 $aThis research work was carried out at the Capivara Farm of Embrapa Arroz e Feijão in Santo Antônio de Goiás, GO and at the Estrela do Sul Farm in the municipality of Nova Xavantina, MT. We tested the e!ects of incorporating biochar into the soil of upland rice and soybean production systems in the Cerrado. Here we refer to biochar as any type of material produced from carbonized vegetable waste in pyrolysis. Pyrolysis is seen as a promising approach to lowering the levels of CO2 in the atmosphere, as it is a fast and controlled way of transforming biomass that is re-deposited on agricultural soils at a slower decomposition rate than organic matter in the soil.
650 $aBiochar
650 $aPyrolysis
650 $aRice
650 $aSoybeans
650 $aArroz
650 $aCerrado
650 $aOryza Sativa
650 $aResíduo
650 $aSistema de Cultivo
650 $aSoja
700 1 $aMADARI, B. E.
700 1 $aSANTOS, J. L. S.
773 $tIn: SOTTA, E. D.; SAMPAIO, F. G.; MARZALL, K.; SILVA, W. G. da (ed.). Adapting to climate change: strategies for brazilian agricultural and livestock system. Brasília, DF: MAPA, 2021.
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Registro original: |
Embrapa Arroz e Feijão (CNPAF) |
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Biblioteca |
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Classificação |
Cutter |
Registro |
Volume |
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URL |
Voltar
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Registro Completo
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Biblioteca(s): |
Embrapa Unidades Centrais. |
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Data corrente: |
29/03/2011 |
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Data da última atualização: |
09/05/2018 |
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Autoria: |
BERGAMASCHI, H.; DALMAGO, G. A.; BERGONCI, J. I.; KRUGER, C. A. M. B.; HECKLER, B. M. M.; COMIRAM, F. |
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Afiliação: |
Homero Bergamaschi, Universidade Federal do Rio Grande do Sul (UFRGS); GENEI ANTONIO DALMAGO, CNPT; João Ito Bergonci, UFRGS, Departamento de Botânica; Cleusa Adriane Menegassi Bianchi Krüger, Universidade Regional do Noroeste do Estado do Rio Grande do Sul (UNIJUI); Bruna Maria Machado Heckler, Empresa de Assistência Técnica e Extensão Rural; Flavia Comiran, Instituto Agronômico do Paraná. |
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Título: |
Intercepted solar radiation by maize crops subjected to different tillage systems and water availability levels. |
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Ano de publicação: |
2010 |
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Fonte/Imprenta: |
Pesquisa Agropecuária Brasileira, Brasília, DF, v. 45, n. 12, p. 1331-1341, dez. 2010 |
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Idioma: |
Inglês |
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Notas: |
Título em português: Radiação solar interceptada pela cultura do milho sob diferentes níveis de preparo do solo e disponibilidade hídrica. |
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Conteúdo: |
Abstract - The objective of this work was to evaluate changes in the photosynthetic photon flux density (PPFD) interception efficiency and PPFD extinction coefficient for maize crop subjected to different soil tillage systems and water availability levels. Crops were subjected to no-tillage and conventional tillage systems combined with full irrigation and non-irrigation treatments. Continuous measurements of transmitted PPFD on the soil surface and incoming PPFD over the canopy were taken throughout the crop cycle. Leaf area index and soil water potential were also measured during the whole period. Considering a mean value over the maize cycle, intercepted PPFD was higher in the conventional tillage than in the no-tillage system. During the initial stages of plants, intercepted PPFD in the conventional tillage was double the PPFD interception in the no-tillage treatment. However, those differences were reduced up to the maximum leaf area index, close to tasseling stage. The lowest interception of PPFD occurred in the conventional tillage during the reproductive period, as leaf senescence progressed. Over the entire crop cycle, the interception of PPFD by the non-irrigated plants was about 20% lower than by the irrigated plants. The no-tillage system reduced the extinction coefficient for PPFD, which may have allowed a higher penetration of solar radiation into the canopy. |
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Palavras-Chave: |
Photosynthetic photon flux density; Water deficit. |
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Thesagro: |
Zea Mays. |
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Thesaurus NAL: |
leaf area; no-tillage. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/105584/1/Intercepted-solar.pdf
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Marc: |
LEADER 02301naa a2200253 a 4500
001 1883598
005 2018-05-09
008 2010 bl uuuu u00u1 u #d
100 1 $aBERGAMASCHI, H.
245 $aIntercepted solar radiation by maize crops subjected to different tillage systems and water availability levels.
260 $c2010
500 $aTítulo em português: Radiação solar interceptada pela cultura do milho sob diferentes níveis de preparo do solo e disponibilidade hídrica.
520 $aAbstract - The objective of this work was to evaluate changes in the photosynthetic photon flux density (PPFD) interception efficiency and PPFD extinction coefficient for maize crop subjected to different soil tillage systems and water availability levels. Crops were subjected to no-tillage and conventional tillage systems combined with full irrigation and non-irrigation treatments. Continuous measurements of transmitted PPFD on the soil surface and incoming PPFD over the canopy were taken throughout the crop cycle. Leaf area index and soil water potential were also measured during the whole period. Considering a mean value over the maize cycle, intercepted PPFD was higher in the conventional tillage than in the no-tillage system. During the initial stages of plants, intercepted PPFD in the conventional tillage was double the PPFD interception in the no-tillage treatment. However, those differences were reduced up to the maximum leaf area index, close to tasseling stage. The lowest interception of PPFD occurred in the conventional tillage during the reproductive period, as leaf senescence progressed. Over the entire crop cycle, the interception of PPFD by the non-irrigated plants was about 20% lower than by the irrigated plants. The no-tillage system reduced the extinction coefficient for PPFD, which may have allowed a higher penetration of solar radiation into the canopy.
650 $aleaf area
650 $ano-tillage
650 $aZea Mays
653 $aPhotosynthetic photon flux density
653 $aWater deficit
700 1 $aDALMAGO, G. A.
700 1 $aBERGONCI, J. I.
700 1 $aKRUGER, C. A. M. B.
700 1 $aHECKLER, B. M. M.
700 1 $aCOMIRAM, F.
773 $tPesquisa Agropecuária Brasileira, Brasília, DF$gv. 45, n. 12, p. 1331-1341, dez. 2010
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Registro original: |
Embrapa Unidades Centrais (AI-SEDE) |
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