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Registro Completo |
Biblioteca(s): |
Embrapa Agrossilvipastoril; Embrapa Trigo. |
Data corrente: |
12/02/2025 |
Data da última atualização: |
12/02/2025 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
NASCIMENTO, A. F. do; FERREIRA, A.; CLEMENTE, R. A. |
Afiliação: |
ALEXANDRE FERREIRA DO NASCIMENTO, CNPT; ANDERSON FERREIRA, CNPT; RAFAEL ALANIS CLEMENTE, FEDERAL UNIVERSITY OF MATO GROSSO. |
Título: |
Strategies for mitigating nitrous oxide emissions from weathered soils fertilized with urea. |
Ano de publicação: |
2024 |
Fonte/Imprenta: |
Nutrient Cycling in Agroecosystems, 2024. |
DOI: |
https://doi.org/10.1007/s10705-024-10382-5 |
Idioma: |
Inglês |
Notas: |
Online version. |
Conteúdo: |
Various strategies, particularly those that affect nitrogen (N)-related processes at the soil plant interface, have been investigated to enhance N-agronomic efficiency (AE) and reduce nitrous oxide ( N2O) emissions from soils fertilized with urea, the main N source employed in Brazilian agriculture. This study aimed to evaluate the AE and the N2O emissions from soils cultivated with maize in soybean-maize succession following treatment with different mitigation approaches in Southern Amazon. An experiment of randomized block design was performed involving seven treatments in which maize was cultivated in soil: (T1) under control conditions; (T2) inoculated with nitrogen-fixing bacteria (NFB); (T3) fertilized with urea; (T4) inoculated with NFB and fertilized with urea; (T5) fertilized with urea containing the nitrification inhibitor dicyandiamide (DCD); (T6) fertilized with urea containing the urease inhibitor N-(n-butyl)thiophosphoric triamide (NBPT); (T7) fertilized with urea containing a combination of DCD and NBPT. The highest N2O fluxes (300 μg N2O- N m− 2 h− 1) were recorded for T3 and T4 around 12–14 days after top dressing fertilization with urea. Application of DCD-containing urea (T5 and, to a lesser extent, T7) was effective in reducing N2O emissions. Emission factors were below of 1% for all treatments, with the highest values (≤ 0.42%) recorded for T3, T4 and T6. Fertilization with urea containing DCD alone or in combination with NBPT (T5 and T7) improved the grain yield, the AE, the yield-scaled N2O and reduced emission factors values by around 75% to the level registered for T3. Use of nitrification inhibitors represents an alternative for the mitigation of greenhouse gas emissions during the off-season maize cropping cycle in Southern Amazon. MenosVarious strategies, particularly those that affect nitrogen (N)-related processes at the soil plant interface, have been investigated to enhance N-agronomic efficiency (AE) and reduce nitrous oxide ( N2O) emissions from soils fertilized with urea, the main N source employed in Brazilian agriculture. This study aimed to evaluate the AE and the N2O emissions from soils cultivated with maize in soybean-maize succession following treatment with different mitigation approaches in Southern Amazon. An experiment of randomized block design was performed involving seven treatments in which maize was cultivated in soil: (T1) under control conditions; (T2) inoculated with nitrogen-fixing bacteria (NFB); (T3) fertilized with urea; (T4) inoculated with NFB and fertilized with urea; (T5) fertilized with urea containing the nitrification inhibitor dicyandiamide (DCD); (T6) fertilized with urea containing the urease inhibitor N-(n-butyl)thiophosphoric triamide (NBPT); (T7) fertilized with urea containing a combination of DCD and NBPT. The highest N2O fluxes (300 μg N2O- N m− 2 h− 1) were recorded for T3 and T4 around 12–14 days after top dressing fertilization with urea. Application of DCD-containing urea (T5 and, to a lesser extent, T7) was effective in reducing N2O emissions. Emission factors were below of 1% for all treatments, with the highest values (≤ 0.42%) recorded for T3, T4 and T6. Fertilization with urea containing DCD alone or in combination with NBPT (T5 and T7) improved the gr... Mostrar Tudo |
Thesagro: |
Solo. |
Categoria do assunto: |
-- P Recursos Naturais, Ciências Ambientais e da Terra |
Marc: |
LEADER 02362naa a2200181 a 4500 001 2172703 005 2025-02-12 008 2024 bl uuuu u00u1 u #d 024 7 $ahttps://doi.org/10.1007/s10705-024-10382-5$2DOI 100 1 $aNASCIMENTO, A. F. do 245 $aStrategies for mitigating nitrous oxide emissions from weathered soils fertilized with urea.$h[electronic resource] 260 $c2024 500 $aOnline version. 520 $aVarious strategies, particularly those that affect nitrogen (N)-related processes at the soil plant interface, have been investigated to enhance N-agronomic efficiency (AE) and reduce nitrous oxide ( N2O) emissions from soils fertilized with urea, the main N source employed in Brazilian agriculture. This study aimed to evaluate the AE and the N2O emissions from soils cultivated with maize in soybean-maize succession following treatment with different mitigation approaches in Southern Amazon. An experiment of randomized block design was performed involving seven treatments in which maize was cultivated in soil: (T1) under control conditions; (T2) inoculated with nitrogen-fixing bacteria (NFB); (T3) fertilized with urea; (T4) inoculated with NFB and fertilized with urea; (T5) fertilized with urea containing the nitrification inhibitor dicyandiamide (DCD); (T6) fertilized with urea containing the urease inhibitor N-(n-butyl)thiophosphoric triamide (NBPT); (T7) fertilized with urea containing a combination of DCD and NBPT. The highest N2O fluxes (300 μg N2O- N m− 2 h− 1) were recorded for T3 and T4 around 12–14 days after top dressing fertilization with urea. Application of DCD-containing urea (T5 and, to a lesser extent, T7) was effective in reducing N2O emissions. Emission factors were below of 1% for all treatments, with the highest values (≤ 0.42%) recorded for T3, T4 and T6. Fertilization with urea containing DCD alone or in combination with NBPT (T5 and T7) improved the grain yield, the AE, the yield-scaled N2O and reduced emission factors values by around 75% to the level registered for T3. Use of nitrification inhibitors represents an alternative for the mitigation of greenhouse gas emissions during the off-season maize cropping cycle in Southern Amazon. 650 $aSolo 700 1 $aFERREIRA, A. 700 1 $aCLEMENTE, R. A. 773 $tNutrient Cycling in Agroecosystems, 2024.
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Embrapa Trigo (CNPT) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Meio-Norte. Para informações adicionais entre em contato com cpamn.biblioteca@embrapa.br. |
Registro Completo
Biblioteca(s): |
Embrapa Meio-Norte. |
Data corrente: |
11/02/2010 |
Data da última atualização: |
12/02/2010 |
Tipo da produção científica: |
Resumo em Anais de Congresso |
Autoria: |
COSTA, M. da S.; ARAÚJO, A. M. de; MORAES, J. B. de; CASTELO BRANCO, J. da F.; SILVA, F. L. R. da; IBIAPINA NETO, V. |
Afiliação: |
Márcio da Silva Costa, UFPI; Adriana Mello de Araújo, Embrapa Meio-Norte; Joubert Borges de Moraes, UFPI; José da Fonseca Castelo Branco, UFPI; Francisco Luiz Ribeiro da Silva, Embrapa Caprinos; Vicente Ibiapina Neto, UFPI. |
Título: |
Caracterização genética da raça local Serrana Azul no Estado do Piauí com uso de marcadores de microssatélites de DNA. |
Ano de publicação: |
2008 |
Fonte/Imprenta: |
In: SIMPÓSIO BRASILEIRO DE RECURSOS GENÉTICOS, 2., 2008, Brasília, DF. Anais... Brasília, DF: Embrapa Recursos Genéticos e Biotecnologia, 2008. p. 502. |
Idioma: |
Português |
Palavras-Chave: |
Heterozigosisadade; Variabilidade genética. |
Thesagro: |
Caprino; Recurso Genético. |
Categoria do assunto: |
-- |
Marc: |
LEADER 00799naa a2200217 a 4500 001 1657807 005 2010-02-12 008 2008 bl uuuu u00u1 u #d 100 1 $aCOSTA, M. da S. 245 $aCaracterização genética da raça local Serrana Azul no Estado do Piauí com uso de marcadores de microssatélites de DNA. 260 $c2008 650 $aCaprino 650 $aRecurso Genético 653 $aHeterozigosisadade 653 $aVariabilidade genética 700 1 $aARAÚJO, A. M. de 700 1 $aMORAES, J. B. de 700 1 $aCASTELO BRANCO, J. da F. 700 1 $aSILVA, F. L. R. da 700 1 $aIBIAPINA NETO, V. 773 $tIn: SIMPÓSIO BRASILEIRO DE RECURSOS GENÉTICOS, 2., 2008, Brasília, DF. Anais... Brasília, DF: Embrapa Recursos Genéticos e Biotecnologia, 2008. p. 502.
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