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| Registros recuperados : 62 | |
| 3. |  | ASSIS, G. M. L. de; MENEZES, A. P. M.; AZEVEDO, J. M. A. de; AZEVEDO, H. A. F. da S.; MATAVELI, M.; MENDONÇA, M. S. de. Divergência genêtica entre genótipos de amendoim forrageiro em relação a cacteres agronômicos e bromatológicos avaliados na época seca. In: REUNIÃO ANUAL DA SOCIEDADE BRASILEIRA DE ZOOTECNIA, 49., 2012, Brasília. A produção animal no mundo em transformação: anais. Brasília, DF: SBZ, 2012. 3 p. 1 CD-ROM.| Biblioteca(s): Embrapa Acre. |
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| 4. | | ASSIS, G. M. L. de; VALENTIM, J. F.; MENEZES, A. P. M.; MATAVELI, M.; SANTOS, L. F. A. dos; BRITO, F. da P. Seleção de genótipos de amendoim forrageiro durante o período de estabelecimento no Acre. In: REUNIÃO ANUAL DA SOCIEDADE BRASILEIRA DE ZOOTECNIA, 47., 2010, Salvador, BA. Empreendedorismo e progresso científicos na zootecnia brasileira de vanguarda: anais. Salvador: Sociedade Brasileira de Zootecnia, 2010. 3 p. 1 CD-ROM.| Biblioteca(s): Embrapa Acre. |
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| 8. | | EVANGELISTA, D. K. R.; MATAVELI, M.; SOUSA, D. N. de; KATO, H. C. de A. The innovation as a tool for rural development: Peixe Mais Project experience in Tocantins, Brasil. In: FENACAM & LACQUA/SARA (WAS)'15.; LATIN AMERICAN & CARIBBEAN AQUACULTURE 15.; SOUTH AMERICAN REGIONAL AQUACULTURE 15.; INTERNATIONAL SHRIMP FARMING SYMPOSIUM, 12.; INTERNATIONAL ACQUACULTURE TRADE SHOW, 12.; INTERNATIONAL AQUACULTURE SYMPOSIUM, 9.; TILAPIA ECONOMIC FORUM, 3., 2015, Fortaleza. Abstracts... Fortaleza: ABCC: World Aquaculture Society, 2015. p. 188.| Biblioteca(s): Embrapa Pesca e Aquicultura. |
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| 10. | | LIMA, A. F.; VARELA, E. S.; MACIEL, P. O.; ALVES, A. L.; RODRIGUES, A. P. O.; TORATI, L. S.; MATAVELI, M.; BEZERRA, T. A. Manejo de plantel de reprodutores de pirarucu. Brasília, DF: Embrapa, 2015. 108 p. il.| Biblioteca(s): Embrapa Amazônia Ocidental; Embrapa Pesca e Aquicultura; Embrapa Unidades Centrais. |
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| 11. | | LIMA, A.; PRYSTHON, A.; ROSA, D. K.; LUIZ, D. de B.; SOUSA, D.; ROUTLEDGE, E. A. B.; MATAVELI, M.; UMMUS, M.; CRUVINEL, P.; BARROSO, R.; MATTOS, S. M. G. de; SOARES, S. Relatório técnico do Seminário Nacional de Prospecção de Demandas da Cadeia Produtiva da Pesca: PROSPESQUE. Brasília, DF: Embrapa; Palmas: Embrapa Pesca e Aquicultura, 2012. 88 p.| Biblioteca(s): Embrapa Pesca e Aquicultura. |
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| 12. | | LIMA, A.; PRYSTHON, A.; ROSA, D. K.; LUIZ, D. de B.; SOUSA, D.; ROUTLEDGE, E. A. B.; MATAVELI, M.; UMMUS, M.; CRUVINEL, P.; BARROSO, R.; MATTOS, S. M. G. de; SOARES, S. Relatório técnico do Seminário Nacional de Prospecção de Demandas da Cadeia Produtiva da Pesca: PROSPESQUE. Brasília, DF: Embrapa; Palmas: Embrapa Pesca e Aquicultura, 2012 88 p.| Biblioteca(s): Embrapa Unidades Centrais. |
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| 13. | | MATAVELI, M.; ALVES, A. L.; KIRSCHNIK, L. N. G.; MORO, G. V.; VARELA, E. S. Broodstock management: cryopreservation parameters to select native tropical fish. In: FENACAM & LACQUA/SARA (WAS)'15.; LATIN AMERICAN & CARIBBEAN AQUACULTURE 15.; SOUTH AMERICAN REGIONAL AQUACULTURE 15.; INTERNATIONAL SHRIMP FARMING SYMPOSIUM, 12.; INTERNATIONAL ACQUACULTURE TRADE SHOW, 12.; INTERNATIONAL AQUACULTURE SYMPOSIUM, 9.; TILAPIA ECONOMIC FORUM, 3., 2015, Fortaleza. Abstracts... Fortaleza: ABCC: World Aquaculture Society, 2015. p. 329.| Biblioteca(s): Embrapa Pesca e Aquicultura. |
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| 16. | | MATAVELI, M.; MORAES, G. V. de; STREIT JUNIOR, D. P.; RIBEIRO, R. P.; GASPARINO, E. Qualidade do sêmen em tilápia do Nilo (Oreochromis niloticus), alimentadas com dietas contendo diferentes níveis de vitamina C. Acta Scientiarum. Animal Sciences, Maringá, v. 32, n. 3, p. 345-349, 2010.| Biblioteca(s): Embrapa Acre. |
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| 20. | | MATOS, F. T. de; MATAVELI, M.; COSTA, T. V. da; ROSANOVA, C.; SANTOS, F. S.; ARAÚJO, S. C. dos S.; LIMA, N. N. P.; ABREU, G. de A. Indicadores zootécnicos de tilápias produzidas em tanques-rede sob diferentes densidades de estocagem nas condições hidroclimáticas do Tocantins. In: CONGRESSO BRASILEIRO DE ZOOTECNIA, 32., 2023, Natal. Anais... Natal: Associação Brasileira de Zootecnistas, 2023. ZOOTEC 2023.| Biblioteca(s): Embrapa Pesca e Aquicultura. |
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| Registros recuperados : 62 | |
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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: |
28/09/2022 |
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Data da última atualização: |
28/09/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 2 |
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Autoria: |
ALVAREZ, C.; ÁLVAREZ, C. R.; COSTANTINI, A. O.; ALVES, B. J. R. |
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Afiliação: |
INTA; Universidad de Buenos Aires; ALEJANDRO O. COSTANTINI, INTA; BRUNO JOSE RODRIGUES ALVES, CNPAB. |
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Título: |
Soil nitrous oxide emissions in a maize (Zea mays L.) crop in response to nitrogen fertilisation. |
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Ano de publicação: |
2022 |
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Fonte/Imprenta: |
Soil Research, Published online: 13 June 2022. |
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ISSN: |
1838-675X |
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DOI: |
https://doi.org/10.1071/SR21094 |
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Idioma: |
Inglês |
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Conteúdo: |
Context: An appropriate use of the fertiliser technology may lead to a more efficient N absorption and to the reduction of economic and environmental costs. Aims: This study sought to quantify N2O emissions generated from soil and the residual nitrate (NO3?) up to 2 m depth in field conditions in a maize crop under supplementary irrigation and fertilised with two nitrogen (N) sources (UAN and urea) at increasing N rates (0, 80, 160 and 250 kg N ha?1) in the Semi-arid Argentine Pampas. Methods: Throughout the crop cycle, emissions were monitored daily with static chambers during the first week after fertilisation; then sampling frequency was gradually reduced until the end of the experiment. Key results: There were no yield responses to the use of different sources and N rates. Crop N uptake saturated at 80 kg N ha?1, reaching 300?310 kg N ha?1. Residual NO3? increased significantly with the highest rates of N fertiliser. Total N2O emissions differed significantly only among fertiliser rates. The N2O emissions were lower at 80 than at 160 and 250 kg N ha?1. Conclusions: The N2O emissions measured were lower than those calculated by the IPCC, even when only direct emissions were considered. No grain yield increase was observed due to N fertilisation, with a non-limiting supply of N-NO3? at the beginning of the crop cycle and of N from mineralisation. Implications: This excess of N can generate negative environmental effects due to higher emissions of N2O and residual N-NO3? that can be leached. MenosContext: An appropriate use of the fertiliser technology may lead to a more efficient N absorption and to the reduction of economic and environmental costs. Aims: This study sought to quantify N2O emissions generated from soil and the residual nitrate (NO3?) up to 2 m depth in field conditions in a maize crop under supplementary irrigation and fertilised with two nitrogen (N) sources (UAN and urea) at increasing N rates (0, 80, 160 and 250 kg N ha?1) in the Semi-arid Argentine Pampas. Methods: Throughout the crop cycle, emissions were monitored daily with static chambers during the first week after fertilisation; then sampling frequency was gradually reduced until the end of the experiment. Key results: There were no yield responses to the use of different sources and N rates. Crop N uptake saturated at 80 kg N ha?1, reaching 300?310 kg N ha?1. Residual NO3? increased significantly with the highest rates of N fertiliser. Total N2O emissions differed significantly only among fertiliser rates. The N2O emissions were lower at 80 than at 160 and 250 kg N ha?1. Conclusions: The N2O emissions measured were lower than those calculated by the IPCC, even when only direct emissions were considered. No grain yield increase was observed due to N fertilisation, with a non-limiting supply of N-NO3? at the beginning of the crop cycle and of N from mineralisation. Implications: This excess of N can generate negative environmental effects due to higher emissions of N2O and residual N-NO3? th... Mostrar Tudo |
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Palavras-Chave: |
Argentinean Pampa; Environmental effects; Maize yield; Nitrate leaching. |
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Thesaurus NAL: |
Greenhouse gases; Irrigation; Urea. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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Marc: |
LEADER 02296naa a2200265 a 4500
001 2146959
005 2022-09-28
008 2022 bl uuuu u00u1 u #d
022 $a1838-675X
024 7 $ahttps://doi.org/10.1071/SR21094$2DOI
100 1 $aALVAREZ, C.
245 $aSoil nitrous oxide emissions in a maize (Zea mays L.) crop in response to nitrogen fertilisation.$h[electronic resource]
260 $c2022
520 $aContext: An appropriate use of the fertiliser technology may lead to a more efficient N absorption and to the reduction of economic and environmental costs. Aims: This study sought to quantify N2O emissions generated from soil and the residual nitrate (NO3?) up to 2 m depth in field conditions in a maize crop under supplementary irrigation and fertilised with two nitrogen (N) sources (UAN and urea) at increasing N rates (0, 80, 160 and 250 kg N ha?1) in the Semi-arid Argentine Pampas. Methods: Throughout the crop cycle, emissions were monitored daily with static chambers during the first week after fertilisation; then sampling frequency was gradually reduced until the end of the experiment. Key results: There were no yield responses to the use of different sources and N rates. Crop N uptake saturated at 80 kg N ha?1, reaching 300?310 kg N ha?1. Residual NO3? increased significantly with the highest rates of N fertiliser. Total N2O emissions differed significantly only among fertiliser rates. The N2O emissions were lower at 80 than at 160 and 250 kg N ha?1. Conclusions: The N2O emissions measured were lower than those calculated by the IPCC, even when only direct emissions were considered. No grain yield increase was observed due to N fertilisation, with a non-limiting supply of N-NO3? at the beginning of the crop cycle and of N from mineralisation. Implications: This excess of N can generate negative environmental effects due to higher emissions of N2O and residual N-NO3? that can be leached.
650 $aGreenhouse gases
650 $aIrrigation
650 $aUrea
653 $aArgentinean Pampa
653 $aEnvironmental effects
653 $aMaize yield
653 $aNitrate leaching
700 1 $aÁLVAREZ, C. R.
700 1 $aCOSTANTINI, A. O.
700 1 $aALVES, B. J. R.
773 $tSoil Research, Published online: 13 June 2022.
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