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| Registros recuperados : 50 | |
| 16. |  | CHRISTOFOLETTI, A.; GUERRA, C. E. C.; MAGNAVITA, I. M. P.; MARTINS, M. R.; TAVARES, A. C. Contribuicao a analise morfometrica das regioes das bacias do Jequitinhonha e Extremo Sul, no Estado da Bahia. Noticia Geomorfologica, Campinas, v.21, n.41, p.61-84, 1981.| Biblioteca(s): Embrapa Semiárido. |
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| 17. | | ARAÚJO, E. de O.; MARTINS, M. R.; VITORINO, A. C. T.; MERCANTE, F. M.; URQUIAGA, S. Effect of nitrogen fertilization associated with diazotrophic bacteria inoculation on nitrogen use efficiency and its biological fixation by corn determined using 15N. African Journal of Microbiology Research, v. 9, n. 9, p. 643-650, mar., 2015.| Biblioteca(s): Embrapa Agrobiologia. |
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| 19. | | MARTINS, M. R.; ROGGIA, S.; OLIVEIRA JÚNIOR, A. G.; ANDRADE, G. F.; SILVA, C. S.; SITTA, R. Suscetibilidade do percevejo Euschistus heros a extratos bacterianos. In: JORNADA ACADÊMICA DA EMBRAPA SOJA, 11., 2016, Londrina. Resumos expandidos... Londrina: Embrapa Soja, 2016. p. 89-95. (Embrapa Soja. Documentos, 373).| Biblioteca(s): Embrapa Soja. |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Agrobiologia. Para informações adicionais entre em contato com cnpab.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Agrobiologia. |
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Data corrente: |
03/07/2017 |
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Data da última atualização: |
04/12/2017 |
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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: |
MARTINS, M. R.; SANTANNA, S. A. C.; ZAMANC, B. M.; SANTOS, R. C.; MONTEIRO, R. C.; ALVES, B. J. R.; JANTALIA, C. P.; BODDEY, R. M.; URQUIAGA, S. |
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Afiliação: |
UFRRJ; UFRRJ; SOIL and WATER MANAGEMENT & CROP NUTRITION, FAO AUSTRIA; UFRRJ; BRUNO JOSE RODRIGUES ALVES, CNPAB; CLAUDIA POZZI JANTALIA, CNPAB; ROBERT MICHAEL BODDEY, CNPAB; SEGUNDO SACRAMENTO U CABALLERO, CNPAB. |
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Título: |
Strategies for the use of urease and nitrification inhibitors with urea: impact on N2O and NH3 emissions, fertilizer-15N recovery and maize yield in a tropical soil. |
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Ano de publicação: |
2017 |
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Fonte/Imprenta: |
Agriculture, Ecosystems & Environment, v. 247, n. 1, p. 54-62, 2017. |
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ISSN: |
0167-8809 |
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DOI: |
https://doi.org/10.1016/j.agee.2017.06.021 |
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Idioma: |
Inglês |
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Conteúdo: |
Maize production accounts for the largest proportion of synthetic fertilizer-N used in Brazil, with most of it being urea. The use of this fertilizer raises significant agronomic and environmental concerns due to an elevated risk of gaseous N losses, resulting in low fertilizer-N recovery by plants and increasing anthropogenic greenhouse gas (GHG) emissions. In a field trial on a tropical Acrisol, we quantified the N losses caused by the gaseous emissions of NH3 and N2O and the grain yield and recovery of 15N-fertilizer by maize plants treated with urea with added nitrapyrin or N-(n-butyl) thiophosphoric triamide (NBPT). Under conditions favorable for gaseous N loss from fertilizers, nitrapyrin reduced the cumulative N2O emission by 49% over a period of 30 days after the subsurface application of side-banded urea (50 kg N ha−1) during maize sowing. The use of NBPT delayed urea hydrolysis and reduced the NH3 volatilization by 35%, which represents a significant reduction in indirect N2O emission due to subsequent atmospheric deposition. The use of nitrapyrin during sowing and NBPT during the V5 stage of maize growth enhanced urea-15N recovery by 53% and increased maize grain yield by 1.5 t ha−1 compared to regular urea. Our results indicate that considering the main potential N losses according to timing and placement of fertilizer, the specific use of inhibitors represents an efficient strategy to improve the urea-N recovery and the maize grain yield. The use of nitrification inhibitors can play an effective role in mitigating N2O emissions from typical N fertilization practices in maize-producing areas in Brazil. This study also indicates the need for considering indirect emissions in the overall balance of N2O emissions derived from enhanced-efficiency fertilizers. MenosMaize production accounts for the largest proportion of synthetic fertilizer-N used in Brazil, with most of it being urea. The use of this fertilizer raises significant agronomic and environmental concerns due to an elevated risk of gaseous N losses, resulting in low fertilizer-N recovery by plants and increasing anthropogenic greenhouse gas (GHG) emissions. In a field trial on a tropical Acrisol, we quantified the N losses caused by the gaseous emissions of NH3 and N2O and the grain yield and recovery of 15N-fertilizer by maize plants treated with urea with added nitrapyrin or N-(n-butyl) thiophosphoric triamide (NBPT). Under conditions favorable for gaseous N loss from fertilizers, nitrapyrin reduced the cumulative N2O emission by 49% over a period of 30 days after the subsurface application of side-banded urea (50 kg N ha−1) during maize sowing. The use of NBPT delayed urea hydrolysis and reduced the NH3 volatilization by 35%, which represents a significant reduction in indirect N2O emission due to subsequent atmospheric deposition. The use of nitrapyrin during sowing and NBPT during the V5 stage of maize growth enhanced urea-15N recovery by 53% and increased maize grain yield by 1.5 t ha−1 compared to regular urea. Our results indicate that considering the main potential N losses according to timing and placement of fertilizer, the specific use of inhibitors represents an efficient strategy to improve the urea-N recovery and the maize grain yield. The use of ... Mostrar Tudo |
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Palavras-Chave: |
Greenhouse gas; Isotope; N stabilizer; Tropical soil. |
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Thesaurus NAL: |
nitrapyrin. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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Marc: |
LEADER 02771naa a2200301 a 4500
001 2071907
005 2017-12-04
008 2017 bl uuuu u00u1 u #d
022 $a0167-8809
024 7 $ahttps://doi.org/10.1016/j.agee.2017.06.021$2DOI
100 1 $aMARTINS, M. R.
245 $aStrategies for the use of urease and nitrification inhibitors with urea$bimpact on N2O and NH3 emissions, fertilizer-15N recovery and maize yield in a tropical soil.$h[electronic resource]
260 $c2017
520 $aMaize production accounts for the largest proportion of synthetic fertilizer-N used in Brazil, with most of it being urea. The use of this fertilizer raises significant agronomic and environmental concerns due to an elevated risk of gaseous N losses, resulting in low fertilizer-N recovery by plants and increasing anthropogenic greenhouse gas (GHG) emissions. In a field trial on a tropical Acrisol, we quantified the N losses caused by the gaseous emissions of NH3 and N2O and the grain yield and recovery of 15N-fertilizer by maize plants treated with urea with added nitrapyrin or N-(n-butyl) thiophosphoric triamide (NBPT). Under conditions favorable for gaseous N loss from fertilizers, nitrapyrin reduced the cumulative N2O emission by 49% over a period of 30 days after the subsurface application of side-banded urea (50 kg N ha−1) during maize sowing. The use of NBPT delayed urea hydrolysis and reduced the NH3 volatilization by 35%, which represents a significant reduction in indirect N2O emission due to subsequent atmospheric deposition. The use of nitrapyrin during sowing and NBPT during the V5 stage of maize growth enhanced urea-15N recovery by 53% and increased maize grain yield by 1.5 t ha−1 compared to regular urea. Our results indicate that considering the main potential N losses according to timing and placement of fertilizer, the specific use of inhibitors represents an efficient strategy to improve the urea-N recovery and the maize grain yield. The use of nitrification inhibitors can play an effective role in mitigating N2O emissions from typical N fertilization practices in maize-producing areas in Brazil. This study also indicates the need for considering indirect emissions in the overall balance of N2O emissions derived from enhanced-efficiency fertilizers.
650 $anitrapyrin
653 $aGreenhouse gas
653 $aIsotope
653 $aN stabilizer
653 $aTropical soil
700 1 $aSANTANNA, S. A. C.
700 1 $aZAMANC, B. M.
700 1 $aSANTOS, R. C.
700 1 $aMONTEIRO, R. C.
700 1 $aALVES, B. J. R.
700 1 $aJANTALIA, C. P.
700 1 $aBODDEY, R. M.
700 1 $aURQUIAGA, S.
773 $tAgriculture, Ecosystems & Environment$gv. 247, n. 1, p. 54-62, 2017.
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