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 | Acesso ao texto completo restrito à biblioteca da Embrapa Agrossilvipastoril. Para informações adicionais entre em contato com cpamt.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Agrossilvipastoril; Embrapa Trigo. |
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Data corrente: |
12/02/2025 |
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Data da última atualização: |
12/02/2025 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
NASCIMENTO, A. F. do; FERREIRA, A.; CLEMENTE, R. A. |
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Afiliação: |
ALEXANDRE FERREIRA DO NASCIMENTO, CNPT; ANDERSON FERREIRA, CNPT; RAFAEL ALANIS CLEMENTE, FEDERAL UNIVERSITY OF MATO GROSSO. |
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Título: |
Strategies for mitigating nitrous oxide emissions from weathered soils fertilized with urea. |
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Ano de publicação: |
2024 |
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Fonte/Imprenta: |
Nutrient Cycling in Agroecosystems, 2024. |
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DOI: |
https://doi.org/10.1007/s10705-024-10382-5 |
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Idioma: |
Inglês |
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Notas: |
Online version. |
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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 |
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Thesagro: |
Solo. |
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Categoria do assunto: |
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P Recursos Naturais, Ciências Ambientais e da Terra |
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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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| 1. |  | ESPINDOLA, J. A. A.; VIDAL, M. C.; OLIVEIRA, P. R. T. do A. e; LIRA, V. M. C.; SANTIAGO, J. P.; RAMOS, F.; SANTOS, L. C. R. dos; DIAS, R. P.; OLIVEIRA, D. R. (coord.). Agenda de Inovação em Agricultura Orgânica. Brasília: MAPA, 2024. Documento elaborado pela Câmara Temática de Agricultura Orgânica/MAPA.| Tipo: Autoria/Organização/Edição de Livros |
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