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Registro Completo |
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Biblioteca(s): |
Embrapa Soja. |
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Data corrente: |
03/12/2010 |
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Data da última atualização: |
03/08/2017 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
KASCHUK, G.; ALBERTON, O.; HUNGRIA, M. |
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Afiliação: |
GLACIELA KASCHUK, CNPSo; ODAIR ALBERTON, CNPSo; MARIANGELA HUNGRIA DA CUNHA, CNPSO. |
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Título: |
Three decades of soil microbial biomass studies in Brazilian ecosystems: lessons learned about soil quality and indications for improving sustainability. |
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Ano de publicação: |
2010 |
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Fonte/Imprenta: |
Soil Biology & Biochemistry, Oxford, v. 42, p. 1-13, 2010. |
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DOI: |
doi:10.1016/j.soilbio.2009.08.020 |
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Idioma: |
Português |
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Conteúdo: |
Soil microbial biomass plays important roles in nutrient cycling, plant?pathogen suppression, decomposition of residues and degradation of pollutants; therefore, it is often regarded as a good indicator of soil quality. We reviewed more than a hundred studies in which microbial biomass-C (MB-C), microbial quotient (MB-C/TSOC, total soil organic carbon) and metabolic quotient (qCO2) were evaluated with the objective of understanding MB-C responses to various soil-management practices in Brazilian ecosystems. These practices included tillage systems, crop rotations, pastures, organic farming, inputs of industrial residues and urban sewage sludge, applications of agrochemicals and burning. With a metaanalysis of 233 data points, we confirmed the benefits of no-tillage in preserving MB-C and reducing qCO2 in comparison to conventional tillage. A large number of studies described increases in MB-C and MB-C/TSOC due to permanent organic farming, also benefits from crop rotations particularly with several species involved, whereas application of agrochemicals and burning severely disturbed soil microbial communities. The MB-C decreased in overgrazed pastures, but increased in pastures rotated with wellmanaged crops. Responses of MB-C, MB-C/TSOC and qCO2 to amendment with organic industrial residues varied with residue type, dose applied and soil texture. In conclusion, MB-C and related parameters were, indeed, useful indicators of soil quality in various Brazilian ecosystems. However, direct relationships between MB-C and nutrient-cycling dynamics, microbial diversity and functionality are still unclear. Further studies are needed to develop strategies to maximize beneficial effects of microbial communities on soil fertility and crop productivity. MenosSoil microbial biomass plays important roles in nutrient cycling, plant?pathogen suppression, decomposition of residues and degradation of pollutants; therefore, it is often regarded as a good indicator of soil quality. We reviewed more than a hundred studies in which microbial biomass-C (MB-C), microbial quotient (MB-C/TSOC, total soil organic carbon) and metabolic quotient (qCO2) were evaluated with the objective of understanding MB-C responses to various soil-management practices in Brazilian ecosystems. These practices included tillage systems, crop rotations, pastures, organic farming, inputs of industrial residues and urban sewage sludge, applications of agrochemicals and burning. With a metaanalysis of 233 data points, we confirmed the benefits of no-tillage in preserving MB-C and reducing qCO2 in comparison to conventional tillage. A large number of studies described increases in MB-C and MB-C/TSOC due to permanent organic farming, also benefits from crop rotations particularly with several species involved, whereas application of agrochemicals and burning severely disturbed soil microbial communities. The MB-C decreased in overgrazed pastures, but increased in pastures rotated with wellmanaged crops. Responses of MB-C, MB-C/TSOC and qCO2 to amendment with organic industrial residues varied with residue type, dose applied and soil texture. In conclusion, MB-C and related parameters were, indeed, useful indicators of soil quality in various Brazilian ecosystems. Howev... Mostrar Tudo |
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Thesagro: |
Biomassa; Microbiologia do solo. |
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Thesaurus Nal: |
Microbial biomass; Soil microorganisms; Soil quality. |
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Categoria do assunto: |
S Ciências Biológicas |
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Marc: |
LEADER 02477naa a2200217 a 4500
001 1868639
005 2017-08-03
008 2010 bl uuuu u00u1 u #d
024 7 $adoi:10.1016/j.soilbio.2009.08.020$2DOI
100 1 $aKASCHUK, G.
245 $aThree decades of soil microbial biomass studies in Brazilian ecosystems$blessons learned about soil quality and indications for improving sustainability.
260 $c2010
520 $aSoil microbial biomass plays important roles in nutrient cycling, plant?pathogen suppression, decomposition of residues and degradation of pollutants; therefore, it is often regarded as a good indicator of soil quality. We reviewed more than a hundred studies in which microbial biomass-C (MB-C), microbial quotient (MB-C/TSOC, total soil organic carbon) and metabolic quotient (qCO2) were evaluated with the objective of understanding MB-C responses to various soil-management practices in Brazilian ecosystems. These practices included tillage systems, crop rotations, pastures, organic farming, inputs of industrial residues and urban sewage sludge, applications of agrochemicals and burning. With a metaanalysis of 233 data points, we confirmed the benefits of no-tillage in preserving MB-C and reducing qCO2 in comparison to conventional tillage. A large number of studies described increases in MB-C and MB-C/TSOC due to permanent organic farming, also benefits from crop rotations particularly with several species involved, whereas application of agrochemicals and burning severely disturbed soil microbial communities. The MB-C decreased in overgrazed pastures, but increased in pastures rotated with wellmanaged crops. Responses of MB-C, MB-C/TSOC and qCO2 to amendment with organic industrial residues varied with residue type, dose applied and soil texture. In conclusion, MB-C and related parameters were, indeed, useful indicators of soil quality in various Brazilian ecosystems. However, direct relationships between MB-C and nutrient-cycling dynamics, microbial diversity and functionality are still unclear. Further studies are needed to develop strategies to maximize beneficial effects of microbial communities on soil fertility and crop productivity.
650 $aMicrobial biomass
650 $aSoil microorganisms
650 $aSoil quality
650 $aBiomassa
650 $aMicrobiologia do solo
700 1 $aALBERTON, O.
700 1 $aHUNGRIA, M.
773 $tSoil Biology & Biochemistry, Oxford$gv. 42, p. 1-13, 2010.
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Registro original: |
Embrapa Soja (CNPSO) |
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Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
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Registro Completo
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Biblioteca(s): |
Embrapa Arroz e Feijão. |
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Data corrente: |
13/07/2001 |
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Data da última atualização: |
09/01/2009 |
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Autoria: |
COSTA, J. L. da S. |
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Título: |
Influência da rotação de culturas nas populações de Rhizoctonia solani e Fusarium solani f. sp. phaseoli em solo de cerrado. |
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Ano de publicação: |
2000 |
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Fonte/Imprenta: |
Santo Antônio de Goiás: Embrapa Arroz e Feijão, 2000. |
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Páginas: |
2 p. |
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Série: |
(Embrapa Arroz e Feijão. Pesquisa em foco, 44). |
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Idioma: |
Português |
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Conteúdo: |
O tombamento de plântulas e as prodridões readiculares no feijoeiro comum estão geralmente associados a Fusarium solani f. sp. phaseoli e a Rhizoctonia solani. Em geral, estes organismos estão presentes concomitantemente. O manejo da cultura e do solo tem-se mostrado como a melhor estratégia para controlar a doença ou conviver com ela em níveis menos jdanosos à cultura. Neste sentido, a rotação de culturas constitui uma das medidas mais desejáveis. No presente trabalho, verificou-se a influência da rotação de culturas na atividade microbiológica do solo e na ocorrência de R. solani e f. solani f. sp. phaseoli. |
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Palavras-Chave: |
Brasil; Controle; Cultivation; Cultura; Goias; Monoculture; Phaseoli; Plant diseases; Radicle; Rotação; Rotational cropping; Santo Antonio de Goias. |
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Thesagro: |
Cerrado; Doença de Planta; Feijão; Fusarium; Fusarium Solani; Manejo; Monocultura; Phaseolus Vulgaris; Podridão Radicular; Rhizoctonia Solani; Rotação de Cultura; Solo; Tombamento de Planta; Uso da Terra. |
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Thesaurus NAL: |
crop management; kidney beans; land use. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/CNPAF/17259/1/pqfoco44.pdf
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Marc: |
LEADER 01948nam a2200481 a 4500
001 1208372
005 2009-01-09
008 2000 bl uuuu u0uu1 u #d
100 1 $aCOSTA, J. L. da S.
245 $aInfluência da rotação de culturas nas populações de Rhizoctonia solani e Fusarium solani f. sp. phaseoli em solo de cerrado.
260 $aSanto Antônio de Goiás: Embrapa Arroz e Feijão$c2000
300 $a2 p.
490 $a(Embrapa Arroz e Feijão. Pesquisa em foco, 44).
520 $aO tombamento de plântulas e as prodridões readiculares no feijoeiro comum estão geralmente associados a Fusarium solani f. sp. phaseoli e a Rhizoctonia solani. Em geral, estes organismos estão presentes concomitantemente. O manejo da cultura e do solo tem-se mostrado como a melhor estratégia para controlar a doença ou conviver com ela em níveis menos jdanosos à cultura. Neste sentido, a rotação de culturas constitui uma das medidas mais desejáveis. No presente trabalho, verificou-se a influência da rotação de culturas na atividade microbiológica do solo e na ocorrência de R. solani e f. solani f. sp. phaseoli.
650 $acrop management
650 $akidney beans
650 $aland use
650 $aCerrado
650 $aDoença de Planta
650 $aFeijão
650 $aFusarium
650 $aFusarium Solani
650 $aManejo
650 $aMonocultura
650 $aPhaseolus Vulgaris
650 $aPodridão Radicular
650 $aRhizoctonia Solani
650 $aRotação de Cultura
650 $aSolo
650 $aTombamento de Planta
650 $aUso da Terra
653 $aBrasil
653 $aControle
653 $aCultivation
653 $aCultura
653 $aGoias
653 $aMonoculture
653 $aPhaseoli
653 $aPlant diseases
653 $aRadicle
653 $aRotação
653 $aRotational cropping
653 $aSanto Antonio de Goias
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Embrapa Arroz e Feijão (CNPAF) |
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