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 | Acesso ao texto completo restrito à biblioteca da Embrapa Roraima. Para informações adicionais entre em contato com cpafrr.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Rondônia; Embrapa Roraima. |
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Data corrente: |
04/03/2020 |
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Data da última atualização: |
17/04/2020 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
CHAVARRO-MESA, E.; CERESINI, P.; PEREIRA, D.; VICENTINI, S.; SILVA, T.; RAMOS-MOLINA, L.; NEGRISOLI, M.; SCHURT, D. A.; VIEIRA JUNIOR, J. R. |
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Afiliação: |
DANIEL AUGUSTO SCHURT, CPAF-RR; JOSE ROBERTO VIEIRA JUNIOR, CPAF-RO. |
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Título: |
A broad diversity survey of Rhizoctonia species from the Brazilian Amazon reveals the prevalence of R. solani AG-1 IA on signal grass and the new record of AG-1 IF on cowpea and soybeans. |
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Ano de publicação: |
2020 |
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Fonte/Imprenta: |
Plant Pathology, p. 1-12, 2020. |
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Idioma: |
Português |
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Palavras-Chave: |
Rhizoctonia oryzae. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 00730naa a2200217 a 4500
001 2120852
005 2020-04-17
008 2020 bl uuuu u00u1 u #d
100 1 $aCHAVARRO-MESA, E.
245 $aA broad diversity survey of Rhizoctonia species from the Brazilian Amazon reveals the prevalence of R. solani AG-1 IA on signal grass and the new record of AG-1 IF on cowpea and soybeans.$h[electronic resource]
260 $c2020
653 $aRhizoctonia oryzae
700 1 $aCERESINI, P.
700 1 $aPEREIRA, D.
700 1 $aVICENTINI, S.
700 1 $aSILVA, T.
700 1 $aRAMOS-MOLINA, L.
700 1 $aNEGRISOLI, M.
700 1 $aSCHURT, D. A.
700 1 $aVIEIRA JUNIOR, J. R.
773 $tPlant Pathology, p. 1-12, 2020.
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Registro original: |
Embrapa Roraima (CPAF-RR) |
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Registro Completo
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Biblioteca(s): |
Embrapa Instrumentação; Embrapa Pecuária Sudeste. |
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Data corrente: |
10/05/2019 |
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Data da última atualização: |
03/01/2024 |
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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: |
SEGNINI, A.; XAVIER, A. A. P.; OTAVIANI-JUNIOR, P. L.; OLIVEIRA, P. P. A.; PEDROSO, A. de F.; PRAES, M. F. F. M.; RODRIGUES, P. H. M.; MILORI, D. M. B. P. |
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Afiliação: |
PATRICIA PERONDI ANCHAO OLIVEIRA, CPPSE; ANDRE DE FARIA PEDROSO, CPPSE; MARIA FERNANDA FERREIRA MENEGUCCI PRAES, Universidade de São Paulo; PAULO HENRIQUE MAZZA RODRIGUES, Universidade de São Paulo; DEBORA MARCONDES BASTOS PEREIRA, CNPDIA. |
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Título: |
Soil carbon stock and humification in pastures under different levels of intensification in Brazil. |
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Ano de publicação: |
2019 |
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Fonte/Imprenta: |
Scientia Agrícola, v. 76, n. 1, p. 33-40, 2019. |
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DOI: |
10.1590/1678-992X-2017-0131 |
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Idioma: |
Inglês |
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Conteúdo: |
Intensive management of tropical pastures has shown potential for greenhouse gas (GHG) mitigation due to high forage production and C accumulation in the soil. This study aimed to evaluate different pasture management options in relation to their effect on soil C stocks and soil organic matter (SOM) humification. Pastures in four beef cattle production systems were assessed: intensive and irrigated pasture with high stocking rate (IHS); dryland pasture with high stocking rate (DHS); dryland pasture with moderate stocking rate (DMS); degraded pasture (DP). The soil under the native forest was also evaluated and soil carbon stocks from the 0-100 and 0-30 cm layers were assessed. Carbon stocks (0-100 cm) ranged from 99.88 to 142.33 Mg ha−1 in DP and DMS, respectively and were, respectively, 14 % and 24 % higher compared to the soil under the forest and indicate the capacity of adequately managed tropical pastures to mitigate GHG emissions from livestock production. Humification indexes indicated the presence of more labile C in pastures with greater C accumulation (DHS and DMS), mainly in the upper soil layers, indicating recent C accumulation resulting from correct management. However, more labile C can be easily lost to the atmosphere as CO2, depending on pasture management. Low C stocks associated with high humification indexes are characteristics of DP in which significant amounts of SOM are lost. It is necessary to develop technologies to improve C sequestration in IHS and results indicate the importance of quantifying C stocks in association with C stability. MenosIntensive management of tropical pastures has shown potential for greenhouse gas (GHG) mitigation due to high forage production and C accumulation in the soil. This study aimed to evaluate different pasture management options in relation to their effect on soil C stocks and soil organic matter (SOM) humification. Pastures in four beef cattle production systems were assessed: intensive and irrigated pasture with high stocking rate (IHS); dryland pasture with high stocking rate (DHS); dryland pasture with moderate stocking rate (DMS); degraded pasture (DP). The soil under the native forest was also evaluated and soil carbon stocks from the 0-100 and 0-30 cm layers were assessed. Carbon stocks (0-100 cm) ranged from 99.88 to 142.33 Mg ha−1 in DP and DMS, respectively and were, respectively, 14 % and 24 % higher compared to the soil under the forest and indicate the capacity of adequately managed tropical pastures to mitigate GHG emissions from livestock production. Humification indexes indicated the presence of more labile C in pastures with greater C accumulation (DHS and DMS), mainly in the upper soil layers, indicating recent C accumulation resulting from correct management. However, more labile C can be easily lost to the atmosphere as CO2, depending on pasture management. Low C stocks associated with high humification indexes are characteristics of DP in which significant amounts of SOM are lost. It is necessary to develop technologies to improve C sequestration in IHS and... Mostrar Tudo |
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Palavras-Chave: |
Atlantic forest biome; Brazilian livestock systems; Humification index; ILPF; Laser-induced fluorescence spectroscopy. |
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Thesaurus NAL: |
Organic matter. |
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Categoria do assunto: |
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A Sistemas de Cultivo |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1160406/1/SoilCarbonStock.pdf
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Marc: |
LEADER 02504naa a2200289 a 4500
001 2160406
005 2024-01-03
008 2019 bl uuuu u00u1 u #d
024 7 $a10.1590/1678-992X-2017-0131$2DOI
100 1 $aSEGNINI, A.
245 $aSoil carbon stock and humification in pastures under different levels of intensification in Brazil.$h[electronic resource]
260 $c2019
520 $aIntensive management of tropical pastures has shown potential for greenhouse gas (GHG) mitigation due to high forage production and C accumulation in the soil. This study aimed to evaluate different pasture management options in relation to their effect on soil C stocks and soil organic matter (SOM) humification. Pastures in four beef cattle production systems were assessed: intensive and irrigated pasture with high stocking rate (IHS); dryland pasture with high stocking rate (DHS); dryland pasture with moderate stocking rate (DMS); degraded pasture (DP). The soil under the native forest was also evaluated and soil carbon stocks from the 0-100 and 0-30 cm layers were assessed. Carbon stocks (0-100 cm) ranged from 99.88 to 142.33 Mg ha−1 in DP and DMS, respectively and were, respectively, 14 % and 24 % higher compared to the soil under the forest and indicate the capacity of adequately managed tropical pastures to mitigate GHG emissions from livestock production. Humification indexes indicated the presence of more labile C in pastures with greater C accumulation (DHS and DMS), mainly in the upper soil layers, indicating recent C accumulation resulting from correct management. However, more labile C can be easily lost to the atmosphere as CO2, depending on pasture management. Low C stocks associated with high humification indexes are characteristics of DP in which significant amounts of SOM are lost. It is necessary to develop technologies to improve C sequestration in IHS and results indicate the importance of quantifying C stocks in association with C stability.
650 $aOrganic matter
653 $aAtlantic forest biome
653 $aBrazilian livestock systems
653 $aHumification index
653 $aILPF
653 $aLaser-induced fluorescence spectroscopy
700 1 $aXAVIER, A. A. P.
700 1 $aOTAVIANI-JUNIOR, P. L.
700 1 $aOLIVEIRA, P. P. A.
700 1 $aPEDROSO, A. de F.
700 1 $aPRAES, M. F. F. M.
700 1 $aRODRIGUES, P. H. M.
700 1 $aMILORI, D. M. B. P.
773 $tScientia Agrícola$gv. 76, n. 1, p. 33-40, 2019.
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