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| Registros recuperados : 49 | |
| 21. |  | BUSTAMANTE, M. M. C.; KOZOVITS, A. R.; SILVA, L. F.; DUARTE, G. F.; CASTRO, A. A. Assimilacao de nitrato e taxas fotossinteticas de tres especies lenhosas de cerrado. In: LEITE, L.L.; SAITO, C.H., ed. Contribuicao ao conhecimento ecologico do cerrado. Brasilia: UnB, 1997. p.49-53. Trabalho apresentado no 3o. Congresso de Ecologia do Brasil, Brasilia, 1996.| Biblioteca(s): Embrapa Cerrados. |
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| 25. | | PARRON, L. M.; BUSTAMANTE, M. M. C.; CAMARGO, P.; PRADO, C. L.; MARTINELLI, L. A. Isotopic composition of soils and plants in a gallery forest of cerrado biome: effect of topographic gradient. In: CONFERÊNCIA CIENTÍFICA DO LBA, 3., 2004, Brasília, DF. Anais de trabalhos completos. Brasília, DF: LBA, 2004. Resumo 27.6-P.| Biblioteca(s): Embrapa Florestas. |
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| 27. | | MARKEWITZ, D.; FIGUEIREDO, R. de O.; DAVIDSON, E. A.; BUSTAMANTE, M. M. C.; PARRON, L.; RESENDE, J. The chemistry of two streams draining kaolinitic soils. In: CONFERÊNCIA CIENTÍFICA DO LBA, 3., 2004, Brasília, DF. Anais de trabalhos completos. Brasília, DF: LBA, 2004. Plenária 6. Resumo 20.5.| Biblioteca(s): Embrapa Amazônia Oriental. |
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| 28. | | VIANA, L. T.; BUSTAMANTE, M. M. C.; PINTO, A. S.; MOLINA, M.; KISSELLE, W. K.; ZEPP, R. G. Estrutura da comunidade microbiana em areas nativas e de pastagem na regiao do cerrado. In: SIMPOSIO ECOLOGIA E BIODIVERSIDADE DO CERRADO, 2002, Brasilia, DF. Perspectivas e desafios para o seculo 21: [programa e resumos]. Brasilia: Embrapa Sede, 2002. p. 39-40.| Biblioteca(s): Embrapa Cerrados. |
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| 31. | | MUNIZ, L. S. B.; BUSTAMANTE, M. M. C.; BUCCI, S.; GOLDSTEIN, G.; VIANA, L. T.; FRANCO, A. C. Variacoes no tempo de vida de folhas em especies arboreas de um cerrado sentido restrito submetido a diferentes tratamentos de fertilizacao. In: CONGRESSO NACIONAL DE BOTANICA, 51., 2000, Brasilia, DF. Resumos. Brasilia: Sociedade Botanica do Brasil, 2000. p. 51.| Biblioteca(s): Embrapa Cerrados. |
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| 32. | | MARKEWITZ, D.; LAMON III, E. C.; BUSTAMANTE, M. M. C.; CHAVES, J.; FIGUEIREDO, R. de O.; JOHNSON, M. S.; KRUSCHE, A. V.; NEILL, C.; SILVA, J. S. O. Discharge calcium concentration relationships in streams of the Amazon and Cerrado of Brazil: soil or land use controlled. In: ESA ANNUAL MEETING, 96., 2011, Austin. Nº COS 97-6.| Biblioteca(s): Embrapa Meio Ambiente. |
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| 33. | | KOZOVITS, A. R.; BUSTAMANTE, M. M. C.; DUARTE, G. F.; SILVA, L. F.; CASTRO, A. A.; MENDES, A. P.; MAGALHAES, J. R. Nitrato e amonio no solo e sua assimilacao por especies lenhosas em uma area de cerrado submetida a queimada prescrita. In: CONGRESSO DE ECOLOGIA DO BRASIL, 3., 1996, Brasilia. Manejo de ecossistemas e mudancas globais: resumos. Brasilia: UnB, 1996. p.478-479.| Biblioteca(s): Embrapa Cerrados. |
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| 34. | | KOZOVITS, A. R.; BUSTAMANTE, M. M. C.; DUARTE, G. F.; SILVA, L. F.; CASTRO, A. A.; MENDES, A. P.; MAGALHAES, J. R. Nitrato e amonio no solo e sua assimilacao por especies lenhosas em uma area de cerrado submetida a queimadas prescritas. In: CONGRESSO DE ECOLOGIA DO BRASIL, 3., 1996, Brasilia, DF. Manejo de ecossistemas e mudancas globais: resumos. Brasilia: Univercidade de Brasilia, Departemento de Ecologia, 1996. p.478-479. Resumo| Biblioteca(s): Embrapa Recursos Genéticos e Biotecnologia. |
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| 35. | | SILVA, M. R. S. S. da; BRESOLIN, J. D.; KRUGER, R. H.; BUSTAMANTE, M. M. C.; REIS JUNIOR, F. B. dos. Effects of land use changes on soil microbial communities in the Cerrado region. In: CONFERÊNCIA CIENTÍFICA DO LBA, 3., 2004, Brasília, DF. Anais de trabalhos completos. Brasília, DF: LBA, 2004. 1 p.| Biblioteca(s): Embrapa Cerrados. |
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| 36. | | PINTO, A. de S.; BUSTAMANTE, M. M. C.; SILVA, M. R. S. S. da; KISSELLE, K. W.; BROSSARD, M.; KRUGER, R.; ZEPP, R. G.; BURKE, R. A. Effects of different treatments of pasture restoration on soil trace gas emissions in the cerrados of Central Brazil. Earth Interactions, v. 10, p. 1-26, 2006.| Biblioteca(s): Embrapa Cerrados. |
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| 37. | | CARVALHO, A. M. de; BUSTAMANTE, M. M. C.; KOZOVITS, A. R.; SOUSA, D. M.; VIANA, L. T.; MIRANDA, L. de M. NO and N2O emissions related to the nitrogen fertilization in a cornfield under No-tillage and tillage sistems. In: CONFERÊNCIA CIENTÍFICA DO LBA, 3., 2004, Brasília, DF. Anais de trabalhos completos. Brasília, DF: LBA, 2004. 1 p.| Biblioteca(s): Embrapa Cerrados. |
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| 38. | | SANO, E. E.; RODRIGUES, A. A.; MARTINS, E. de S.; BETTIOL, G. M.; BUSTAMANTE, M. M. C.; BEZERRA, A. S.; COUTO JÚNIOR, A. F.; VASCONCELOS, V.; SCHULER, J.; BOLFE, E. L. Cerrado ecoregions: a spatial framework to assess and prioritize Brazilian savanna environmental diversity for conservation. Journal of Environmental Management, v. 222, p. 818-828, 2019.| Biblioteca(s): Embrapa Agricultura Digital; Embrapa Cerrados; Embrapa Unidades Centrais. |
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| 39. | | ARAÚJO, J. F.; CASTRO, A. R. de; COSTA, M. M. do C.; TOGAWA, R. C.; PAPPAS JUNIOR, G. J.; QUIRINO, B. F.; BUSTAMANTE, M. M. C.; WILLIAMSON, L.; HANDELSMAN, J.; KRUGER, R. H. Characterization of soil bacterial assemblies in Brazilian Savanna-Like vegetation reveals acidobacteria dominance. Microbial Ecology, v. 64, p. 760-770, 2012.| Biblioteca(s): Embrapa Agroenergia; Embrapa Recursos Genéticos e Biotecnologia. |
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| 40. | | ALENCAR, A.; SHIMBO, J. Z.; LENTI, F.; MARQUES, C. B.; ZIMBRES, B.; ROSA, M.; ARRUDA, V.; CASTRO, I.; RIBEIRO, J. P. F. M.; VARELA, V.; ALENCAR, I.; PIONTEKOWSKI, V.; RIBEIRO, V.; BUSTAMANTE, M. M. C.; SANO, E. E.; BARROSO, M. Mapping Three Decades of Changes in the Brazilian Savanna Native Vegetation Using Landsat Data Processed in the Google Earth Engine Platform. Remote Sensing, v. 12, n. 6, 2020.| Biblioteca(s): Embrapa Cerrados. |
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| Registros recuperados : 49 | |
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Registro Completo
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Biblioteca(s): |
Embrapa Cerrados. |
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Data corrente: |
11/04/2024 |
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Data da última atualização: |
11/04/2024 |
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Autoria: |
CARVALHO, A. M. de; BUSTAMANTE, M. M. C.; KOZOVITS, A. R.; SOUSA, D. M.; VIANA, L. T.; MIRANDA, L. de M. |
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Afiliação: |
ARMINDA MOREIRA DE CARVALHO, CPAC; MERCEDES MARIA CUNHA BUSTAMANTE, UNIVERSIDADE DE BRASÍLIA; ALESSANDRA RODRIGUES KOZOVITS, UNIVERSIDADE DE BRASÍLIA; DANIELLE MATIAS SOUSA, UNIVERSIDADE DE BRASÍLIA; LAURA TILLMAN VIANA, UNIVERSIDADE DE BRASÍLIA; LEO NOBRE DE MIRANDA, UNIVERSIDADE DE BRASÍLIA. |
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Título: |
NO and N2O emissions related to the nitrogen fertilization in a cornfield under No-tillage and tillage sistems. |
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Ano de publicação: |
2004 |
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Fonte/Imprenta: |
In: CONFERÊNCIA CIENTÍFICA DO LBA, 3., 2004, Brasília, DF. Anais de trabalhos completos. Brasília, DF: LBA, 2004. |
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Páginas: |
1 p. |
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Idioma: |
Inglês |
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Conteúdo: |
The dynamic of nitrogen oxides emissions from Cerrado soils related to the nitrogen fertilization is still not well known, in spite of the intensification of agricultural activities in this region. NO and N2O emissions were measured immediately and up to five days after nitrogen fertilization in a cornfield, under no-tillage and tillage systems, in the Cerrado region. The experiment was conduced at EMBRAPA-Cerrados (Planaltina-DF), mucuna-preta/corn succession on a Oxisol. Associated with irrigation, 20 kg ha-1 N (at the sowing) and 60 kg ha-1 N-urea (cover) were applied. The experimental design used was random blocks, in no-tillage and tillage systems. The fluxes were determined immediately, one, two, three and five days after nitrogen cover. In each plot, fluxes of NO and N2O were measured in four and three PVC chambers, respectively. Higher NO fluxes were found immediately (4 to 6 ng NO-N cm-2 h-1) and 3 days after N fertilization (3.5 to 5.5 ng NO-N cm-2 h-1). The lowest fluxes were found after five days (0.7 to 2.7 ng NO-N cm-2 h-1). In general, the no-tillage block showed higher fluxes soon after the N fertilization compared to the tillage block. On the other hand, the tillage blocks presented higher fluxes in the third day. Most of the N2O fluxes values were below the detection limit (0.6 ng ng N2O-N cm-2 h-1), except in the first and third day, when higher emissions (2.6 and 0.63 ng N2O-N cm-2 h-1) were measured observed in the no-tillage blocks. NO and N2O emissions were not correlated with air and soil temperature and soil moisture. The results suggest an immediate pulse in the NO emission after fertilization and irrigation, and a second pulse after three days. After five days, the fluxes were reduced to the background levels (around 1.2 ng NO-N cm-2 h-1). MenosThe dynamic of nitrogen oxides emissions from Cerrado soils related to the nitrogen fertilization is still not well known, in spite of the intensification of agricultural activities in this region. NO and N2O emissions were measured immediately and up to five days after nitrogen fertilization in a cornfield, under no-tillage and tillage systems, in the Cerrado region. The experiment was conduced at EMBRAPA-Cerrados (Planaltina-DF), mucuna-preta/corn succession on a Oxisol. Associated with irrigation, 20 kg ha-1 N (at the sowing) and 60 kg ha-1 N-urea (cover) were applied. The experimental design used was random blocks, in no-tillage and tillage systems. The fluxes were determined immediately, one, two, three and five days after nitrogen cover. In each plot, fluxes of NO and N2O were measured in four and three PVC chambers, respectively. Higher NO fluxes were found immediately (4 to 6 ng NO-N cm-2 h-1) and 3 days after N fertilization (3.5 to 5.5 ng NO-N cm-2 h-1). The lowest fluxes were found after five days (0.7 to 2.7 ng NO-N cm-2 h-1). In general, the no-tillage block showed higher fluxes soon after the N fertilization compared to the tillage block. On the other hand, the tillage blocks presented higher fluxes in the third day. Most of the N2O fluxes values were below the detection limit (0.6 ng ng N2O-N cm-2 h-1), except in the first and third day, when higher emissions (2.6 and 0.63 ng N2O-N cm-2 h-1) were measured observed in the no-tillage blocks. NO and N2O emissions... Mostrar Tudo |
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Thesagro: |
Fertilizante Nitrogenado; Fixação de Nitrogênio; Plantio Direto. |
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Thesaurus NAL: |
Nitrogen fertilizers; No-tillage; Tillage. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1163497/1/NO-and-N2O-Emissions-Related-to-the-Nitrogen.pdf
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Marc: |
LEADER 02637nam a2200253 a 4500
001 2163497
005 2024-04-11
008 2004 bl uuuu u00u1 u #d
100 1 $aCARVALHO, A. M. de
245 $aNO and N2O emissions related to the nitrogen fertilization in a cornfield under No-tillage and tillage sistems.$h[electronic resource]
260 $aIn: CONFERÊNCIA CIENTÍFICA DO LBA, 3., 2004, Brasília, DF. Anais de trabalhos completos. Brasília, DF: LBA$c2004
300 $a1 p.
520 $aThe dynamic of nitrogen oxides emissions from Cerrado soils related to the nitrogen fertilization is still not well known, in spite of the intensification of agricultural activities in this region. NO and N2O emissions were measured immediately and up to five days after nitrogen fertilization in a cornfield, under no-tillage and tillage systems, in the Cerrado region. The experiment was conduced at EMBRAPA-Cerrados (Planaltina-DF), mucuna-preta/corn succession on a Oxisol. Associated with irrigation, 20 kg ha-1 N (at the sowing) and 60 kg ha-1 N-urea (cover) were applied. The experimental design used was random blocks, in no-tillage and tillage systems. The fluxes were determined immediately, one, two, three and five days after nitrogen cover. In each plot, fluxes of NO and N2O were measured in four and three PVC chambers, respectively. Higher NO fluxes were found immediately (4 to 6 ng NO-N cm-2 h-1) and 3 days after N fertilization (3.5 to 5.5 ng NO-N cm-2 h-1). The lowest fluxes were found after five days (0.7 to 2.7 ng NO-N cm-2 h-1). In general, the no-tillage block showed higher fluxes soon after the N fertilization compared to the tillage block. On the other hand, the tillage blocks presented higher fluxes in the third day. Most of the N2O fluxes values were below the detection limit (0.6 ng ng N2O-N cm-2 h-1), except in the first and third day, when higher emissions (2.6 and 0.63 ng N2O-N cm-2 h-1) were measured observed in the no-tillage blocks. NO and N2O emissions were not correlated with air and soil temperature and soil moisture. The results suggest an immediate pulse in the NO emission after fertilization and irrigation, and a second pulse after three days. After five days, the fluxes were reduced to the background levels (around 1.2 ng NO-N cm-2 h-1).
650 $aNitrogen fertilizers
650 $aNo-tillage
650 $aTillage
650 $aFertilizante Nitrogenado
650 $aFixação de Nitrogênio
650 $aPlantio Direto
700 1 $aBUSTAMANTE, M. M. C.
700 1 $aKOZOVITS, A. R.
700 1 $aSOUSA, D. M.
700 1 $aVIANA, L. T.
700 1 $aMIRANDA, L. de M.
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