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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. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Soja. |
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Data corrente: |
09/09/2010 |
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Data da última atualização: |
26/01/2017 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
SILVA, A. P.; BABUJIA, L. C.; FRANCHINI, J. C.; SOUZA, R. A.; HUNGRIA, M. |
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Afiliação: |
ADRIANA PEREIRA SILVA, UEL; LETÍCIA CARLOS BABUJIA, UEL; JULIO CEZAR FRANCHINI DOS SANTOS, CNPSo; ROSINEI APARECIDA SOUZA, CNPSo; MARIANGELA HUNGRIA DA CUNHA, CNPSo. |
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Título: |
Microbial biomass under various soil- and crop-management systems in short- and long-term experiments in Brazil. |
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Ano de publicação: |
2010 |
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Fonte/Imprenta: |
Field Crops Research, Maryland, v. 119, n. 1, p. 20-26, Oct. 2010. |
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DOI: |
10.1016/j.fcr.2010.06.012 |
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Idioma: |
Português |
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Conteúdo: |
Management and cropping systems varying in soil mobilization rates and plant-residue inputs may have profound effects on the biological properties of soil. Therefore, the objective of this study was to quantify soil microbial biomass carbon and nitrogen (MB-C and MB-N)?by means of the fumigation-extraction method?under varied soil-management and crop-rotation/succession systems in southern Brazil, correlating the results with yields of soybean and maize crops. The microbial biomass and grain yields were examined at the 0?10 cm layer in four short- to long-term field experiments. Experiment 1 was a 26-year trial consisting of four soil-management systems: (1) no-tillage (NT), (2) conventional tillage [(CT) with disc plough], (3) field cultivator (FC) or (4) heavy-disc harrow (DH), each with a crop succession (CS) of soybean (summer) and wheat (winter). Experiment 2 was a 21-year trial consisting of one CS, soybean/wheat every year) and seven crop rotations (CRs) comprising soybean, maize, wheat and green manures (lupine, radish and black oat), under the NT system. Experiment 3 comprised a 14-year CT trial, and 4-year and 14-year NT trials, with both one CS and two CRs. Experiment 4, a 10-year trial consisted of CT and NT and three CRs. Analyses were performed during the summer and winter croppings. Differences in microbial parameters, as a function of crop succession and rotation, were not easily detected as they varied as a function of a complex combination of plant species and time of implementation of the experiment. In contrast, MB-C and MB-N values were consistently higher?up to more than 100%?under NT in comparison to CT and were associated with higher grain yields. Our results?from this wide range of experiments?suggest that MB-C and, particularly, MB-N are sensitive indicators of the effects of soil- and crop-management regimens. MenosManagement and cropping systems varying in soil mobilization rates and plant-residue inputs may have profound effects on the biological properties of soil. Therefore, the objective of this study was to quantify soil microbial biomass carbon and nitrogen (MB-C and MB-N)?by means of the fumigation-extraction method?under varied soil-management and crop-rotation/succession systems in southern Brazil, correlating the results with yields of soybean and maize crops. The microbial biomass and grain yields were examined at the 0?10 cm layer in four short- to long-term field experiments. Experiment 1 was a 26-year trial consisting of four soil-management systems: (1) no-tillage (NT), (2) conventional tillage [(CT) with disc plough], (3) field cultivator (FC) or (4) heavy-disc harrow (DH), each with a crop succession (CS) of soybean (summer) and wheat (winter). Experiment 2 was a 21-year trial consisting of one CS, soybean/wheat every year) and seven crop rotations (CRs) comprising soybean, maize, wheat and green manures (lupine, radish and black oat), under the NT system. Experiment 3 comprised a 14-year CT trial, and 4-year and 14-year NT trials, with both one CS and two CRs. Experiment 4, a 10-year trial consisted of CT and NT and three CRs. Analyses were performed during the summer and winter croppings. Differences in microbial parameters, as a function of crop succession and rotation, were not easily detected as they varied as a function of a complex combination of plant species ... Mostrar Tudo |
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Palavras-Chave: |
Biomassa microbiana. |
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Thesagro: |
Microrganismo; Qualidade; Rotacao de cultura; Soja; Solo. |
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Thesaurus Nal: |
Corn; Crop rotation; Microbial biomass; Soil microorganisms; Soil quality; Soybeans. |
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Categoria do assunto: |
A Sistemas de Cultivo |
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Marc: |
LEADER 02781naa a2200325 a 4500
001 1861987
005 2017-01-26
008 2010 bl uuuu u00u1 u #d
024 7 $a10.1016/j.fcr.2010.06.012$2DOI
100 1 $aSILVA, A. P.
245 $aMicrobial biomass under various soil- and crop-management systems in short- and long-term experiments in Brazil.
260 $c2010
520 $aManagement and cropping systems varying in soil mobilization rates and plant-residue inputs may have profound effects on the biological properties of soil. Therefore, the objective of this study was to quantify soil microbial biomass carbon and nitrogen (MB-C and MB-N)?by means of the fumigation-extraction method?under varied soil-management and crop-rotation/succession systems in southern Brazil, correlating the results with yields of soybean and maize crops. The microbial biomass and grain yields were examined at the 0?10 cm layer in four short- to long-term field experiments. Experiment 1 was a 26-year trial consisting of four soil-management systems: (1) no-tillage (NT), (2) conventional tillage [(CT) with disc plough], (3) field cultivator (FC) or (4) heavy-disc harrow (DH), each with a crop succession (CS) of soybean (summer) and wheat (winter). Experiment 2 was a 21-year trial consisting of one CS, soybean/wheat every year) and seven crop rotations (CRs) comprising soybean, maize, wheat and green manures (lupine, radish and black oat), under the NT system. Experiment 3 comprised a 14-year CT trial, and 4-year and 14-year NT trials, with both one CS and two CRs. Experiment 4, a 10-year trial consisted of CT and NT and three CRs. Analyses were performed during the summer and winter croppings. Differences in microbial parameters, as a function of crop succession and rotation, were not easily detected as they varied as a function of a complex combination of plant species and time of implementation of the experiment. In contrast, MB-C and MB-N values were consistently higher?up to more than 100%?under NT in comparison to CT and were associated with higher grain yields. Our results?from this wide range of experiments?suggest that MB-C and, particularly, MB-N are sensitive indicators of the effects of soil- and crop-management regimens.
650 $aCorn
650 $aCrop rotation
650 $aMicrobial biomass
650 $aSoil microorganisms
650 $aSoil quality
650 $aSoybeans
650 $aMicrorganismo
650 $aQualidade
650 $aRotacao de cultura
650 $aSoja
650 $aSolo
653 $aBiomassa microbiana
700 1 $aBABUJIA, L. C.
700 1 $aFRANCHINI, J. C.
700 1 $aSOUZA, R. A.
700 1 $aHUNGRIA, M.
773 $tField Crops Research, Maryland$gv. 119, n. 1, p. 20-26, Oct. 2010.
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Embrapa Soja (CNPSO) |
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| Acesso ao texto completo restrito à biblioteca da Embrapa Cerrados. Para informações adicionais entre em contato com cpac.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Cerrados. |
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Data corrente: |
20/05/1992 |
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Data da última atualização: |
20/05/1992 |
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Autoria: |
RIBEIRO, J. F.; ARAUJO, G. M. de; HARIDASAN, M.; RATTER, J. A. |
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Título: |
A flora lenhosa de cerradao em solos distroficos no Distrito Federal. |
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Ano de publicação: |
1985 |
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Fonte/Imprenta: |
In:CONGRESSO NACIONAL DE BOTANICA, 36., 1985, Curitiba, PR. Programas e resumos. Curitiba: Sociedade Botanica do Brasil/Associacao Internacional de Anatomistas da Madeira, 1985. |
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Páginas: |
p.140. |
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Idioma: |
Português |
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Notas: |
Conferencia Regional Pan-Americana de Anatomia da Madeira/Encontro Nacional de Curadores de Herbario, 1., 1985, Curitiba, PR. |
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Conteúdo: |
A flora lenhosa de quatro cerradao em solos distroficos localizados no Distrito Federal foi levantada fitossociologicamente pelo metodo de quadrantes em um ponto. As especies mais importantes desta flora foram Emmotum nitens, Ocotea spixiana e Blepharocalix suaveolens. E marcante ainda a presenca de Qualea grandiflora, Siphoneugena chnoosepala, Caryocar brasiliense e Sclerolobium paniculatum var rubiginosum. Estas especies nao sao exclusivas desta fitofisionomia mas, sao as mais represntativas, tanto pela densidade quanto pelo porte e frequencia. De um modo geral, a caducifolia nestas especies quando ocorre, e rapida e nao sincronizada mantendo um aspecto sempre verde na vegetacao. Este fato seria decorrente, talvez, da maior disponibilidade de agua no soloquando comparado com o Cerradao mesotrofico ou mesmo com o Cerrado (sentido restrito). Apesar de seu porte florestal, este Cerradao ocorre em solos com baixos teores de fosforo, potassio, magnesio e calcio e alta saturacao de aluminio. Apesar de apresentar apenas uma especie (E. nitens), a familia Icacinaceae foi a mais importante em praticamente todas as areas. Outras familias importantes foram Lauraceae, Leguminoseae, Vochysiaceae e Myrtaceae. Estas familias juntas foram responsaveis por cerca de 65% do Indice de valor de importancia desta fitofisionomia. |
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Palavras-Chave: |
Brasil; Cerradao; Distrito Federal; Fitossociologia. |
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Thesagro: |
Cerrado; Distribuição Geográfica; Flora; Levantamento; Planta; Solo; Vegetação. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02362naa a2200313 a 4500
001 1547231
005 1992-05-20
008 1985 bl uuuu u00u1 u #d
100 1 $aRIBEIRO, J. F.
245 $aA flora lenhosa de cerradao em solos distroficos no Distrito Federal.
260 $c1985
300 $ap.140.
500 $aConferencia Regional Pan-Americana de Anatomia da Madeira/Encontro Nacional de Curadores de Herbario, 1., 1985, Curitiba, PR.
520 $aA flora lenhosa de quatro cerradao em solos distroficos localizados no Distrito Federal foi levantada fitossociologicamente pelo metodo de quadrantes em um ponto. As especies mais importantes desta flora foram Emmotum nitens, Ocotea spixiana e Blepharocalix suaveolens. E marcante ainda a presenca de Qualea grandiflora, Siphoneugena chnoosepala, Caryocar brasiliense e Sclerolobium paniculatum var rubiginosum. Estas especies nao sao exclusivas desta fitofisionomia mas, sao as mais represntativas, tanto pela densidade quanto pelo porte e frequencia. De um modo geral, a caducifolia nestas especies quando ocorre, e rapida e nao sincronizada mantendo um aspecto sempre verde na vegetacao. Este fato seria decorrente, talvez, da maior disponibilidade de agua no soloquando comparado com o Cerradao mesotrofico ou mesmo com o Cerrado (sentido restrito). Apesar de seu porte florestal, este Cerradao ocorre em solos com baixos teores de fosforo, potassio, magnesio e calcio e alta saturacao de aluminio. Apesar de apresentar apenas uma especie (E. nitens), a familia Icacinaceae foi a mais importante em praticamente todas as areas. Outras familias importantes foram Lauraceae, Leguminoseae, Vochysiaceae e Myrtaceae. Estas familias juntas foram responsaveis por cerca de 65% do Indice de valor de importancia desta fitofisionomia.
650 $aCerrado
650 $aDistribuição Geográfica
650 $aFlora
650 $aLevantamento
650 $aPlanta
650 $aSolo
650 $aVegetação
653 $aBrasil
653 $aCerradao
653 $aDistrito Federal
653 $aFitossociologia
700 1 $aARAUJO, G. M. de
700 1 $aHARIDASAN, M.
700 1 $aRATTER, J. A.
773 $tIn:CONGRESSO NACIONAL DE BOTANICA, 36., 1985, Curitiba, PR. Programas e resumos. Curitiba: Sociedade Botanica do Brasil/Associacao Internacional de Anatomistas da Madeira, 1985.
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