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| 281. |  | BARCELLOS, A. de O.; RAMOS, A. K. B.; BRAGA, G. J.; VILELA, L.; KARIA, C. T.; CARVALHO, M. A. Leucaena leucocephala. In: FONSECA, D. M. da; MARTUSCELLO, J. A. (ed.). Plantas forrageiras. 2. ed. rev. ampl. Viçosa, MG: Editora UFV, 2021. Cap. 10.| Biblioteca(s): Embrapa Cerrados. |
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| 288. | | MACIEL, G. A.; GALVÃO, P. V.; SOUZA, F. F. de; MIRANDA, A. de A.; MARTHA JÚNIOR, G. B.; VILELA, L. Métodos para estimar a produção de capim massai em diferentes épocas do ano e condições do pasto. In: REUNIÃO ANUAL DA SOCIEDADE BRASILEIRA DE ZOOTECNIA, 45., 2008, Lavras. Anais... Lavras: UFLA: SBZ, 2008. 1 CD-ROM.| Biblioteca(s): Embrapa Cerrados. |
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| 289. | | GUIMARAES JUNIOR, R.; FERREIRA, I. C.; BRAGA, G. J.; PEREIRA, L. G. R.; TOMICH, T. R.; VILELA, L. Methane emissions and milk yields from dairy cows under integrated systems. In: WORLD CONGRESS ON INTEGRATED CROP-LIVESTOCK-FORESTRY SYSTEMS, 2., 2021. Proceedings reference. Brasília, DF: Embrapa, 2021. p. 159-163. WCCLF 2021.
Evento online.| Biblioteca(s): Embrapa Gado de Leite. |
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| 290. | | OLIVEIRA, M. I. L. de; SILVA, F. A. M. da; GOEDERT, W. J.; VILELA, L.; BECQUER, T. Modelagem do movimento de água e estimativa do potencial de perdas por lixiviação dos íons NO3-, K+, Mg2+ e Ca2+. In: CONGRESSO BRASILEIRO DE CIÊNCIA DO SOLO, 31., 2007, Gramado. Conquistas e desafios da ciência do solo brasileira: anais. Porto Alegre: SBCS, 2007. 1 CD-ROM.| Biblioteca(s): Embrapa Cerrados. |
| |
| 291. | | GOIS, S. L. L. de; VILELA, L.; PIZARRO, E. A.; CARVALHO, M. A.; RAMOS, A. K. B. Efeito de calcario, fosforo e potassio na producao de forragem de Arachis pintoi. In: REUNIAO ANUAL DA SOCIEDADE BRASILEIRA DE ZOOTECNIA, 33., 1996, Fortaleza, CE. Anais... Fortaleza: SBZ, 1996. v.2 p.73-74.| Biblioteca(s): Embrapa Cerrados. |
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| 292. | | GOIS, S. L. L. de; VILELA, L.; PIZARRO, E. A.; CARVALHO, M. A.; RAMOS, A. K. B. Efeito de calcario, fosforo e potassio na producao de forragem de Arachis pintoi. Pasturas Tropicales, Cali, v.19, n.3, p.9-13, 1997.| Biblioteca(s): Embrapa Cerrados. |
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| 293. | | LEITE, G. G.; SPAIN, J. M.; VILELA, L.; GOMIDE, C. C. C.; ROCHA, C. M. C. da. Efeito de sistemas de pastejo sobre a produtividade de pastagens consorciadas nos cerrados do Brasil. In: REUNION SABANAS, 1., 1992, Brasilia, DF. Red Internacional de Evaluacion de Pastos Tropicales - RIEPT. Brasilia: EMBRAPA-CPAC / [Cali]: CIAT, 1992. p.539-545.| Biblioteca(s): Embrapa Cerrados. |
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| 294. | | MARCELINO, K. R. A; LEITE, G. G.; VILELA, L.; DIOGO, J. M. da S.; GUERRA, A. F. Efeito da adubação nitrogenada e da irrigação sobre a produtividade e índice de área foliar de duas gramíneas cultivadas no cerrado. In: REUNIÃO ANUAL DA SOCIEDADE BRASILEIRA DE ZOOTECNIA, 38., 2001, Piracicaba. Anais... Brasília, DF: Sociedade Brasileira de Zootecnia; Piracicaba: FEALQ, 2001. p. 230-231.| Biblioteca(s): Embrapa Meio Norte / UEP-Parnaíba. |
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| 295. | | NIVA, C. C.; BUSSINGUER, A. P.; BENVINDO, A.; ALMEIDA, L.; MUSSO, C.; PULROLNIK, K.; MARCHAO, R. L.; VILELA, L. Feeding activity of soil invertebrates in a Crop-Livestock-Forest System in Cerrado region measured with bait lamina method. In: WORLD CONGRESS ON INTEGRATED CROP-LIVESTOCK-FOREST SYSTEMS; INTERNATIONAL SYMPOSIUM ON INTEGRATED CROP-LIVESTOCK SYSTEMS, 3., 2015, Brasília, DF. Towards sustainable intensification: proceedings. Brasília, DF: Embrapa, 2015.| Biblioteca(s): Embrapa Cerrados. |
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| 297. | | VILELA, L. C. T.; COSTA, J. A. A.; SOUZA, V. F.; REIS, F. A.; JACINTO, M. A. C. Fotossensibilização em ovinos. In: JORNADA CIENTÍFICA DA EMBRAPA GADO DE CORTE, 3., 2007, Campo Grande, MS. Anais [da]... Campo Grande, MS: Embrapa Gado de Corte, 2007. p. 76 1 CD-ROM.| Biblioteca(s): Embrapa Gado de Corte. |
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| 298. | | SATO, J. H.; MARCHAO, R. L.; FIGUEIREDO, C. C. de; VILELA, L.; OLIVEIRA, A. D. de; CARVALHO, A. M. de. How Soil Organic Carbon Fractions Affect N2O Emissions in a Long-Term Integrated Crop-Livestock System: A Case Study. In: DATTA, R.; MEENA, R. S. (org.). Soil Carbon Stabilization to Mitigate Climate Change. New York: Springer Singapore, 2021. v. 01, p. 307-332.| Biblioteca(s): Embrapa Cerrados. |
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| 300. | | BATISTA, F. P. da S.; RIBEIRO JUNIOR, W. Q.; RAMOS, M. L. G.; VIVALDI, L. J.; VILELA, L. Indicadores microbiológicos do solo sob influência do cultivo de trigo com duplo propósito. Bioscience Journal, Uberlandia, v. 30, supplement 1, p. 401-410, June 2014.| Biblioteca(s): Embrapa Cerrados. |
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Registro Completo
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Biblioteca(s): |
Embrapa Cerrados. |
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Data corrente: |
17/11/2021 |
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Data da última atualização: |
17/11/2021 |
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Tipo da produção científica: |
Capítulo em Livro Técnico-Científico |
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Autoria: |
SATO, J. H.; MARCHAO, R. L.; FIGUEIREDO, C. C. de; VILELA, L.; OLIVEIRA, A. D. de; CARVALHO, A. M. de. |
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Afiliação: |
JULIANA HIROMI SATO; ROBELIO LEANDRO MARCHAO, CPAC; CÍCERO CÉLIO DE FIGUEIREDO; LOURIVAL VILELA, CPAC; ALEXSANDRA DUARTE DE OLIVEIRA, CPAC; ARMINDA MOREIRA DE CARVALHO, CPAC. |
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Título: |
How Soil Organic Carbon Fractions Affect N2O Emissions in a Long-Term Integrated Crop-Livestock System: A Case Study. |
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Ano de publicação: |
2021 |
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Fonte/Imprenta: |
In: DATTA, R.; MEENA, R. S. (org.). Soil Carbon Stabilization to Mitigate Climate Change. New York: Springer Singapore, 2021. v. 01, p. 307-332. |
|
Idioma: |
Inglês |
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Conteúdo: |
The nitrous oxide (N2O) emissions in agricultural systems are influenced by edaphoclimatic conditions, and the availability of soil organic matter (SOM) is a key factor in this process. Understand the relationship between SOM fractions and N2O emissions in cultivated soils is fundamental to the sustainable manage- ment of tropical soils. However, this relationship remains unclear. The objective of this study was to evaluate the accumulation of labile and stable fractions of SOM and their relations with N2O emissions in a 24-year field study that represents farm conditions in the Cerrado region. The following hypotheses were considered: (i) conservation systems protect SOM, avoiding its rapid decomposition and, consequently, reducing losses of N2O to the atmosphere; (ii) conservation systems favor the increase of labile and stable fractions of SOM, which has the effect of reducing the N2O emission in the soil. The following land- use systems were assessed: no-tillage with integrated crop-livestock system (NT1); no-tillage with continuous cropping (NT2); and conventional system (CT). An area of native vegetation of Cerrado was used as a reference. Nitrous oxide emissions were quantified over a period of 509 days, covering two agricul- tural years with soybean crop followed by sorghum and corn as a second crop in 2014/2015 and 2015/2016 agricultural years, respectively. Soil carbon fractions (labile and stable) and carbon in different classes of soil aggregates were also determined. The cumulative N2O emissions were larger in CT, intermediate in NT systems, and smaller in the Cerrado area. Among the agricultural systems, lower cumulative N2O emissions were observed in NT1, because of the greatest buildup of carbon in its most stable fractions and occluded in aggregates. From PCA results, it is possible to conclude that aggregation is a key factor that correlates with N2O emissions from soil. Thus, NT1 showed the largest average diameter of aggregates and presented the lowest N2O emissions among agroecosystems. Although the conservation systems show a greater microbial population, stable fractions of carbon are predominant, which decreases avail- ability for the soil microbiota, which justifies lower rates of SOM mineralization and, consequently, the lowest N2O emissions. MenosThe nitrous oxide (N2O) emissions in agricultural systems are influenced by edaphoclimatic conditions, and the availability of soil organic matter (SOM) is a key factor in this process. Understand the relationship between SOM fractions and N2O emissions in cultivated soils is fundamental to the sustainable manage- ment of tropical soils. However, this relationship remains unclear. The objective of this study was to evaluate the accumulation of labile and stable fractions of SOM and their relations with N2O emissions in a 24-year field study that represents farm conditions in the Cerrado region. The following hypotheses were considered: (i) conservation systems protect SOM, avoiding its rapid decomposition and, consequently, reducing losses of N2O to the atmosphere; (ii) conservation systems favor the increase of labile and stable fractions of SOM, which has the effect of reducing the N2O emission in the soil. The following land- use systems were assessed: no-tillage with integrated crop-livestock system (NT1); no-tillage with continuous cropping (NT2); and conventional system (CT). An area of native vegetation of Cerrado was used as a reference. Nitrous oxide emissions were quantified over a period of 509 days, covering two agricul- tural years with soybean crop followed by sorghum and corn as a second crop in 2014/2015 and 2015/2016 agricultural years, respectively. Soil carbon fractions (labile and stable) and carbon in different classes of soil aggregates were also determ... Mostrar Tudo |
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Palavras-Chave: |
Brasileiro. |
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Thesagro: |
Carbono; Cerrado; Efeito Estufa; Matéria Orgânica; Plantio Direto. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 03151naa a2200253 a 4500
001 2136212
005 2021-11-17
008 2021 bl uuuu u00u1 u #d
100 1 $aSATO, J. H.
245 $aHow Soil Organic Carbon Fractions Affect N2O Emissions in a Long-Term Integrated Crop-Livestock System$bA Case Study.$h[electronic resource]
260 $c2021
520 $aThe nitrous oxide (N2O) emissions in agricultural systems are influenced by edaphoclimatic conditions, and the availability of soil organic matter (SOM) is a key factor in this process. Understand the relationship between SOM fractions and N2O emissions in cultivated soils is fundamental to the sustainable manage- ment of tropical soils. However, this relationship remains unclear. The objective of this study was to evaluate the accumulation of labile and stable fractions of SOM and their relations with N2O emissions in a 24-year field study that represents farm conditions in the Cerrado region. The following hypotheses were considered: (i) conservation systems protect SOM, avoiding its rapid decomposition and, consequently, reducing losses of N2O to the atmosphere; (ii) conservation systems favor the increase of labile and stable fractions of SOM, which has the effect of reducing the N2O emission in the soil. The following land- use systems were assessed: no-tillage with integrated crop-livestock system (NT1); no-tillage with continuous cropping (NT2); and conventional system (CT). An area of native vegetation of Cerrado was used as a reference. Nitrous oxide emissions were quantified over a period of 509 days, covering two agricul- tural years with soybean crop followed by sorghum and corn as a second crop in 2014/2015 and 2015/2016 agricultural years, respectively. Soil carbon fractions (labile and stable) and carbon in different classes of soil aggregates were also determined. The cumulative N2O emissions were larger in CT, intermediate in NT systems, and smaller in the Cerrado area. Among the agricultural systems, lower cumulative N2O emissions were observed in NT1, because of the greatest buildup of carbon in its most stable fractions and occluded in aggregates. From PCA results, it is possible to conclude that aggregation is a key factor that correlates with N2O emissions from soil. Thus, NT1 showed the largest average diameter of aggregates and presented the lowest N2O emissions among agroecosystems. Although the conservation systems show a greater microbial population, stable fractions of carbon are predominant, which decreases avail- ability for the soil microbiota, which justifies lower rates of SOM mineralization and, consequently, the lowest N2O emissions.
650 $aCarbono
650 $aCerrado
650 $aEfeito Estufa
650 $aMatéria Orgânica
650 $aPlantio Direto
653 $aBrasileiro
700 1 $aMARCHAO, R. L.
700 1 $aFIGUEIREDO, C. C. de
700 1 $aVILELA, L.
700 1 $aOLIVEIRA, A. D. de
700 1 $aCARVALHO, A. M. de
773 $tIn: DATTA, R.; MEENA, R. S. (org.). Soil Carbon Stabilization to Mitigate Climate Change. New York: Springer Singapore, 2021.$gv. 01, p. 307-332.
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