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 | Acesso ao texto completo restrito à biblioteca da Embrapa Suínos e Aves. Para informações adicionais entre em contato com cnpsa.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Suínos e Aves. |
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Data corrente: |
09/05/2018 |
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Data da última atualização: |
22/08/2018 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
GRAVE, R. A.; NICOLOSO, R. da S.; CASSOL, P. C.; SILVA, M. L. B. da; MEZZARI, M. P.; AITA, C.; WUADEN, C. R. |
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Afiliação: |
ROBERTO ANDRÉ GRAVE, IFC/Concórdia; RODRIGO DA SILVEIRA NICOLOSO, CNPSA; PAULO CEZAR CASSOL, UDESC/Lages; MARCIO LUIS BUSI DA SILVA, CNPSA; MELISSA PAOLA MEZZARI, University of Texas; CELSO AITA, UFSM; CAMILA ROSANE WUADEN, UDESC/Lages. |
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Título: |
Determining the effects of tillage and nitrogen sources on soil N2O emission. |
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Ano de publicação: |
2018 |
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Fonte/Imprenta: |
Soil & Tillage Research, v. 175, p. 1-12, 2018. |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract: Soil tillage and fertilization can affect the abundance of nitrifying and denitrifying microbial communities known to regulate N2O losses from agricultural soils. We assessed the effects of mineral and organic N sources on short-term N2O emissions from a Rhodic Nitisol under contrasting soil disturbance. The experiment followed a split-plot design with two soil tillage systems as main plots (tilled soil: TS, and no-till soil: NTS) and five fertilization treatments as subplots, where 140 kg N ha−1 were applied either as urea (UR), raw swine slurry (RS), anaerobically digested swine slurry (ADS), or composted swine slurry (CS). A treatment without N fertilization was used as control (CTR). N2O emissions were determined by using static chambers and correlated with soil (0?0.1 m) temperature, water-filled pore space (WFPS), dissolved organic carbon (DOC), ammonium (NH4 +-N), nitrate (NO3 −-N) and the abundance of specific nitrification and denitrification biomarker genes [ammonium monooxygenase (amoA), nitrate- (narG), nitrite- (nirS), nitric oxide- (qnorB) and nitrous oxide reductases (nosZ)]. Denitrification was the main source of N2O as assessed by increased narG/16S rDNA and narG/nosZ ratios regardless of soil tillage. N2O emissions were augmented in the NTS (30 to 200% higher than TS) where higher soil WFPS (0.6-0.7 cm3 cm−3 ) favored incomplete denitrification. The application of ADS in the NTS decreased denitrification rates and cumulative N2O emission by 47% in comparison with RS (2.9 and 5.6 kg N2O-N ha−1, respectively). Interestingly, N2O emission from the NTS receiving CS (4.7 kg N2O-N ha−1 ) was also promoted by the proliferation of heterotrophic nitrifying bacteria communities. Overal, swine slurry treatment can help mitigate N2O emission from agricultural soils, particularly in regions where this source of fertilizer is abundant and readily available. MenosAbstract: Soil tillage and fertilization can affect the abundance of nitrifying and denitrifying microbial communities known to regulate N2O losses from agricultural soils. We assessed the effects of mineral and organic N sources on short-term N2O emissions from a Rhodic Nitisol under contrasting soil disturbance. The experiment followed a split-plot design with two soil tillage systems as main plots (tilled soil: TS, and no-till soil: NTS) and five fertilization treatments as subplots, where 140 kg N ha−1 were applied either as urea (UR), raw swine slurry (RS), anaerobically digested swine slurry (ADS), or composted swine slurry (CS). A treatment without N fertilization was used as control (CTR). N2O emissions were determined by using static chambers and correlated with soil (0?0.1 m) temperature, water-filled pore space (WFPS), dissolved organic carbon (DOC), ammonium (NH4 +-N), nitrate (NO3 −-N) and the abundance of specific nitrification and denitrification biomarker genes [ammonium monooxygenase (amoA), nitrate- (narG), nitrite- (nirS), nitric oxide- (qnorB) and nitrous oxide reductases (nosZ)]. Denitrification was the main source of N2O as assessed by increased narG/16S rDNA and narG/nosZ ratios regardless of soil tillage. N2O emissions were augmented in the NTS (30 to 200% higher than TS) where higher soil WFPS (0.6-0.7 cm3 cm−3 ) favored incomplete denitrification. The application of ADS in the NTS decreased denitrification rates and cumulative N2O ... Mostrar Tudo |
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Palavras-Chave: |
QPCR em tempo real; Reação em cadeia quantitativa da polimerase. |
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Thesagro: |
Biodigestor; Compostagem; Dejeto; Meio Ambiente; Plantio Direto; Solo. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02747naa a2200289 a 4500
001 2091309
005 2018-08-22
008 2018 bl uuuu u00u1 u #d
100 1 $aGRAVE, R. A.
245 $aDetermining the effects of tillage and nitrogen sources on soil N2O emission.$h[electronic resource]
260 $c2018
520 $aAbstract: Soil tillage and fertilization can affect the abundance of nitrifying and denitrifying microbial communities known to regulate N2O losses from agricultural soils. We assessed the effects of mineral and organic N sources on short-term N2O emissions from a Rhodic Nitisol under contrasting soil disturbance. The experiment followed a split-plot design with two soil tillage systems as main plots (tilled soil: TS, and no-till soil: NTS) and five fertilization treatments as subplots, where 140 kg N ha−1 were applied either as urea (UR), raw swine slurry (RS), anaerobically digested swine slurry (ADS), or composted swine slurry (CS). A treatment without N fertilization was used as control (CTR). N2O emissions were determined by using static chambers and correlated with soil (0?0.1 m) temperature, water-filled pore space (WFPS), dissolved organic carbon (DOC), ammonium (NH4 +-N), nitrate (NO3 −-N) and the abundance of specific nitrification and denitrification biomarker genes [ammonium monooxygenase (amoA), nitrate- (narG), nitrite- (nirS), nitric oxide- (qnorB) and nitrous oxide reductases (nosZ)]. Denitrification was the main source of N2O as assessed by increased narG/16S rDNA and narG/nosZ ratios regardless of soil tillage. N2O emissions were augmented in the NTS (30 to 200% higher than TS) where higher soil WFPS (0.6-0.7 cm3 cm−3 ) favored incomplete denitrification. The application of ADS in the NTS decreased denitrification rates and cumulative N2O emission by 47% in comparison with RS (2.9 and 5.6 kg N2O-N ha−1, respectively). Interestingly, N2O emission from the NTS receiving CS (4.7 kg N2O-N ha−1 ) was also promoted by the proliferation of heterotrophic nitrifying bacteria communities. Overal, swine slurry treatment can help mitigate N2O emission from agricultural soils, particularly in regions where this source of fertilizer is abundant and readily available.
650 $aBiodigestor
650 $aCompostagem
650 $aDejeto
650 $aMeio Ambiente
650 $aPlantio Direto
650 $aSolo
653 $aQPCR em tempo real
653 $aReação em cadeia quantitativa da polimerase
700 1 $aNICOLOSO, R. da S.
700 1 $aCASSOL, P. C.
700 1 $aSILVA, M. L. B. da
700 1 $aMEZZARI, M. P.
700 1 $aAITA, C.
700 1 $aWUADEN, C. R.
773 $tSoil & Tillage Research$gv. 175, p. 1-12, 2018.
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Registro original: |
Embrapa Suínos e Aves (CNPSA) |
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| Registros recuperados : 63 | |
| 5. |  | TERZI, S.; COURI, S.; FARIAS, A. X.; TOURINHO, L. Triagem de linhagens mutantes de Aspergillus niger com potencial de sintese de Enzima hidroliticas. In: CONGRESSO BRASILEIRO DE CIENCIA E TECNOLOGIA DE ALIMENTOS, 15., 1996, Pocos de Caldas, MG. Resumos... Pocos de Caldas: SBCTA, 1996. p.80, ref. 218.| Biblioteca(s): Embrapa Agroindústria de Alimentos. |
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| 6. | | CORREA, T. B. S.; FARIAS, A. X.; ANDERSEN, P. M. Qualidade sanitaria do milho importado quanto a incidencia de aflatoxinas B1, B2, G1, G2 e ocratoxina. In: ENCONTRO NACIONAL DE MICOTOXINAS, 9., 1998, Florianopolis,. Livro de Resumos... Florianopolis, 1988. p.116.| Biblioteca(s): Embrapa Agroindústria de Alimentos. |
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| 8. | | CORREA, T. B. S.; FARIAS, A. X.; FREITAS-SILVA, O.; ASSAD, E. D.; VARGAS, E. A. Avaliacao da sanidade em sementes de amendoim quanto a presenca de fungos toxigenos e deteccao de aflatoxinas, em condicoes de cerrado. In: ENCONTRO NACIONAL DE MICOTOXINAS, 9., 1998, Florianopolis,. Livro de Resumos... Florianopolis, 1988. p.110.| Biblioteca(s): Embrapa Agroindústria de Alimentos. |
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| 9. | | BITTENCOURT, A. M.; FARIAS, A. X.; FREITAS-SILVA, O.; ROCHA, E. S.; CORREA, T. B. S. Identificacao rapida de linhagens de Aspergillus flavus isoladas em graos de milho pos-colheita. In: CONGRESSO BRASILEIRO DE MICOLOGIA, 3., 2001, Aguas de Lindoia, SP. Micologia: desenvolvimento e perspectivas para o milenio. Sociedade Brasileira de Micologia, 2001. p.51, ref. AL.022.| Biblioteca(s): Embrapa Agroindústria de Alimentos. |
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| 10. | | BITTENCOURT, A. M.; CORREA, T. B. S.; FARIAS, A. X.; COSTA, L. S.; COSTA, P. P. Identification of endogenous colonization of Aspergillus ochraceus in irrigated green coffee and grains from Brazilian cerrado. In: INTERNATIONAL IUPAC SYMPOSIUM ON MYCOTOXINS AND PHYCOTOXINS, 10., 2000, Guaruja, Sao Paulo. Official program and abstracts...Sao Paulo: Instituto Adolfo Lutz, 2000. p.183.| Biblioteca(s): Embrapa Agroindústria de Alimentos. |
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| 12. | | FARIAS, A. X.; ROBBS, C. F.; BITTENCOURT, A. M.; ANDERSEN, P. M.; CORREA, T. B. S. Contaminacao endogena por Aspergillus spp. em milho pos-colheita no estado do Parana. Pesquisa Agropecuaria Brasileira, Brasilia, v.35, n.3, p-617-621, 2000.| Biblioteca(s): Embrapa Agroindústria de Alimentos. |
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| 13. | | FARIAS, A. X.; ROBBS, C. F.; CORREA, T. B. S.; BITENCOURT, A. M.; GONZAGA, R. O. Contaminacion endogena por Fusarium spp. en maiz post-cosecha del Parana, BR. In: CONGRESO LATINOAMERICANO DE MICOTOXICOLOGIA, 2., 1997, Caracas. Resumos... Caracas: Universidad Central, 1997.| Biblioteca(s): Embrapa Agroindústria de Alimentos. |
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| 14. | | CORREA, T. B. S.; FARIAS, A. X.; BITTENCOURT, A. M.; COSTA, P. P.; ANDRADE, L. M. Avaliacao da qualidade de amendoim (Arachis hypogaea L.) produzido no cerrado quanto a presenca de fungos toxigenos e de aflatoxinas. In: SIMPOSIO LATINO AMERICANO DE CIENCIA DE ALIMENTOS, 3., 1999, Campinas, SP. Livro de resumos... Campinas, 1999. p. 89.| Biblioteca(s): Embrapa Agroindústria de Alimentos. |
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| 17. | | FARIAS, A. X.; BITTENCOURT, A. M.; ROCHA, E. S.; VASCONCELLOS, M. G.; CORREA, T. B. S. Avaliacao da qualidade de milho produzido em pequenas propriedades quanto a ocorrencia endogena de fungos. In: CONGRESSO BRASILEIRO DE MICOLOGIA, 3., 2001, Aguas de Lindoia, SP. Micologia: desenvolvimento e perspectivas para o milenio. Sociedade Brasileira de Micologia, 2001. p.50, ref. AL.020.| Biblioteca(s): Embrapa Agroindústria de Alimentos. |
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| 19. | | CORREA, T. B. S.; BITTENCOURT, A. M.; FARIAS, A. X.; FREITAS-SILVA, O.; COSTA, L. S. Toxigenic potencial of Aspergillus ochraceus isolated from green coffee of the Brazilian cerrado. In: INTERNATIONAL IUPAC SYMPOSIUM ON MYCOTOXINS AND PHYCOTOXINS, 10., 2000, Guaruja, Sao Paulo. Official program and abstracts...Sao Paulo: Instituto Adolfo Lutz, 2000. p.184.| Biblioteca(s): Embrapa Agroindústria de Alimentos. |
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| 20. | | BITTENCOURT, A. M.; FARIAS, A. X.; CORREA, T. B. S.; COSTA, P. P.; FREITAS-SILVA, O. Toxigenic potential of Aspergillus ochraceus from irrigated Brazilian cerrado coffee. In: INTERNATIONAL CONFERENCE ON COFFEE SCIENCE, 19., 2001, Trieste, Italia. Abstracts... [S.l.]: Association for Science and Information on Coffee, 2001. Ref. PB 706.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Agroindústria de Alimentos. |
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| Registros recuperados : 63 | |
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