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Registro Completo |
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Biblioteca(s): |
Embrapa Algodão; Embrapa Unidades Centrais. |
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Data corrente: |
06/11/2003 |
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Data da última atualização: |
26/10/2018 |
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Autoria: |
OLIVEIRA, C. A. de; MUZZI, M. R. S.; PURCINO, H. A.; MARRIEL, I. E.; SÁ, N. M. H. de. |
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Afiliação: |
Christiane Abreu de Oliveira, Universidade Federal de Minas Gerais - UFMG/Instituto de Ciências Biológicas/Departamento deBotânica; Maria Rita Scotti Muzzi, Universidade Federal de Minas Gerais - UFMG/Instituto de Ciências Biológicas/Departamento deBotânica; Hortênsia Abrantes Purcino, Empresa de Pesquisa Agropecuária de Minas Gerais/Fazenda Experimental Santa Rita; IVANILDO EVODIO MARRIEL, CNPMS; Nadja Maria Horta de Sá, Universidade Federal de Minas Gerais - UFMG/Instituto de Ciências Biológicas/Departamento deBotânica. |
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Título: |
Decomposition of Arachis pintoi and Hyparrhenia rufa litters in monoculture and intercropped systems under lowland soil. |
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Ano de publicação: |
2003 |
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Fonte/Imprenta: |
Pesquisa Agropecuária Brasileira, Brasília, DF, v. 38, n. 9, p. 1089-1095, set. 2003 |
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Idioma: |
Inglês |
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Notas: |
ítulo em português: Decomposição da serrapilheira de Arachis pintoi e Hyparrhenia rufa em sistemasde monocultura e consórcio sob solo de várzea. |
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Conteúdo: |
Tropical grasslands under lowland soils are generally underutilized and the litter of forage legumes may be used to recover these degraded pastures. The objective of this work was to study the dynamics of litter decomposition of Arachis pintoi (pinto peanut), Hyparrhenia rufa (thatching grass) and a mixture of both species in a lowland soil. These treatments were analyzed in three areas: grass monoculture, legume monoculture and legume intercropped with the grass during the dry and wet seasons. Litter bags containing the legume, grass or a mixture of both species were incubated to estimate the decomposition rate and microorganism colonization. Decomposition constants (K) and litter half-lives (T1/2) were estimated by an exponential model whereas number of microorganisms in specific media were determined by plate dilution. The decomposition rate, release of nutrients and microorganisms number, especially bacteria, increased when pinto peanut was added to thatching grass, influenced by favorable lignin/N and C/N ratios in legume litter. When pinto peanut litter was incubated in the grass plots, 50% N and P was released within about 135 days in the dry season and in the wet season, the equivalent release occurred within 20 days. These results indicate that A. pintoi has a great potential for nutrient recycling via litter and can be used to recover degraded areas. |
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Palavras-Chave: |
Forrageira; forrageiras; Matéria orgânica do solo; Microorganismo; Pinto peanuts; Thatching grass. |
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Thesagro: |
Amendoim; Capim Jaraguá; Microrganismo. |
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Thesaurus Nal: |
Arachis; forage; microorganisms; soil organic matter. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/AI-SEDE/25119/1/v38n9a10.pdf
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Marc: |
LEADER 02502naa a2200337 a 4500
001 1109211
005 2018-10-26
008 2003 bl uuuu u00u1 u #d
100 1 $aOLIVEIRA, C. A. de
245 $aDecomposition of Arachis pintoi and Hyparrhenia rufa litters in monoculture and intercropped systems under lowland soil.
260 $c2003
500 $aítulo em português: Decomposição da serrapilheira de Arachis pintoi e Hyparrhenia rufa em sistemasde monocultura e consórcio sob solo de várzea.
520 $aTropical grasslands under lowland soils are generally underutilized and the litter of forage legumes may be used to recover these degraded pastures. The objective of this work was to study the dynamics of litter decomposition of Arachis pintoi (pinto peanut), Hyparrhenia rufa (thatching grass) and a mixture of both species in a lowland soil. These treatments were analyzed in three areas: grass monoculture, legume monoculture and legume intercropped with the grass during the dry and wet seasons. Litter bags containing the legume, grass or a mixture of both species were incubated to estimate the decomposition rate and microorganism colonization. Decomposition constants (K) and litter half-lives (T1/2) were estimated by an exponential model whereas number of microorganisms in specific media were determined by plate dilution. The decomposition rate, release of nutrients and microorganisms number, especially bacteria, increased when pinto peanut was added to thatching grass, influenced by favorable lignin/N and C/N ratios in legume litter. When pinto peanut litter was incubated in the grass plots, 50% N and P was released within about 135 days in the dry season and in the wet season, the equivalent release occurred within 20 days. These results indicate that A. pintoi has a great potential for nutrient recycling via litter and can be used to recover degraded areas.
650 $aArachis
650 $aforage
650 $amicroorganisms
650 $asoil organic matter
650 $aAmendoim
650 $aCapim Jaraguá
650 $aMicrorganismo
653 $aForrageira
653 $aforrageiras
653 $aMatéria orgânica do solo
653 $aMicroorganismo
653 $aPinto peanuts
653 $aThatching grass
700 1 $aMUZZI, M. R. S.
700 1 $aPURCINO, H. A.
700 1 $aMARRIEL, I. E.
700 1 $aSÁ, N. M. H. de
773 $tPesquisa Agropecuária Brasileira, Brasília, DF$gv. 38, n. 9, p. 1089-1095, set. 2003
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Registro original: |
Embrapa Unidades Centrais (AI-SEDE) |
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Registro Completo
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Biblioteca(s): |
Embrapa Agropecuária Oeste. |
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Data corrente: |
11/11/2014 |
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Data da última atualização: |
11/11/2014 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Autoria: |
CASTRO JUNIOR, L. A. de; OTSUBO, A. A.; RANGEL, M. A. S. |
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Afiliação: |
LUÍS ALVES DE CASTRO JUNIOR, GRADUANDO EM AGRONOMIA - FACULDADE ANHANGUERA DE DOURADOS; AURO AKIO OTSUBO, CPAO; MARCO ANTONIO SEDREZ RANGEL, CNPMF. |
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Título: |
Avaliação preliminar de clones de mandioca do programa de melhoramento genético da EMBRAPA para o Centro-Oeste e Sul do Brasil. |
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Ano de publicação: |
2014 |
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Fonte/Imprenta: |
In: JORNADA DE INICIAÇÃO À PESQUISA DA EMBRAPA, 2014, Dourados. Resumos... Brasília, DF: Embrapa, 2014. 1 CD-ROM; JIPE 2014. |
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Idioma: |
Português |
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Thesagro: |
Mandioca. |
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Categoria do assunto: |
A Sistemas de Cultivo |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/111347/1/08-avaliacao-luis.pdf
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Marc: |
LEADER 00571nam a2200133 a 4500
001 1999663
005 2014-11-11
008 2014 bl uuuu u00u1 u #d
100 1 $aCASTRO JUNIOR, L. A. de
245 $aAvaliação preliminar de clones de mandioca do programa de melhoramento genético da EMBRAPA para o Centro-Oeste e Sul do Brasil.$h[electronic resource]
260 $aIn: JORNADA DE INICIAÇÃO À PESQUISA DA EMBRAPA, 2014, Dourados. Resumos... Brasília, DF: Embrapa, 2014. 1 CD-ROM; JIPE 2014.$c2014
650 $aMandioca
700 1 $aOTSUBO, A. A.
700 1 $aRANGEL, M. A. S.
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Embrapa Agropecuária Oeste (CPAO) |
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