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Registro Completo |
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Biblioteca(s): |
Embrapa Arroz e Feijão. |
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Data corrente: |
31/01/2006 |
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Data da última atualização: |
08/04/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
SCOPEL, E.; DOUZET, J. M.; SILVA, F. A. M. da; CARDOSO, A.; MOREIRA, J. A. A.; FINDELING, A.; BERNOUX, M. |
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Afiliação: |
ERIC SCOPEL; JEAN-MARIE DOUZET; FERNANDO ANTONIO MACENA DA SILVA; ALEXANDRE CARDOSO; JOSE ALOISIO ALVES MOREIRA, CNPAF; ANTOINE FINDELING; MARTIAL BERNOUX. |
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Título: |
Impacts des systèmes de culture en semis direct avec couverture végétale (SCV) sur la dynamique de l'eau, de l'azote minéral et du carbone du sol dans les cerrados brésiliens. |
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Ano de publicação: |
2005 |
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Fonte/Imprenta: |
Cahiers Agricultures, v. 14, n. 1, p. 71-75, jan./fév. 2005. |
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Idioma: |
Francês |
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Conteúdo: |
Under the humid tropical climate of the Brazilian cerrados, new cropping systems have become necessary to ensure sustainable agricultural production. Direct-sowing mulch-based cropping systems (DMC) introduce a cover crop before or just after the commercial crop. They help farmers enhance natural resources and produce more total biomass during the year. Crop residues protect the soil and increase organic restitution to the system. In 1999, a Franco-Brazilian collaborative project began scientific studies aimed at quantifying the impact of DMC, especially on the dynamics of water, carbon and nitrogen. DMC systems significantly decrease water runoff. In this way they effectively fight against soil erosion, even if additional infiltrated water can sometimes saturate the system and escape by drainage. The cover crop can then recycle some of that drainage loss and protect and use water resources better throughout the year. DMC systems also provide more favourable conditions that ensure the more intensive and more regular mineralisation of soil organic matter during the rainy season. Some of the organic mulch mineralises at the same time, providing the commercial crop with the benefit of a higher pool of inorganic nitrogen. The additional cover crop can recycle part of the nitrogen not used by the commercial crop and some of the nitrogen mineralised before or after this commercial cycle. Under DMC high microbial activity is responsible for higher CO2 emissions to the atmosphere, but the soil carbon balance is nonetheless positive because of the large biomass production and organic input from the introduction of the cover crop. Even under the hot and humid conditions of the cerrados, soil carbon content increases under the more productive DMC systems. MenosUnder the humid tropical climate of the Brazilian cerrados, new cropping systems have become necessary to ensure sustainable agricultural production. Direct-sowing mulch-based cropping systems (DMC) introduce a cover crop before or just after the commercial crop. They help farmers enhance natural resources and produce more total biomass during the year. Crop residues protect the soil and increase organic restitution to the system. In 1999, a Franco-Brazilian collaborative project began scientific studies aimed at quantifying the impact of DMC, especially on the dynamics of water, carbon and nitrogen. DMC systems significantly decrease water runoff. In this way they effectively fight against soil erosion, even if additional infiltrated water can sometimes saturate the system and escape by drainage. The cover crop can then recycle some of that drainage loss and protect and use water resources better throughout the year. DMC systems also provide more favourable conditions that ensure the more intensive and more regular mineralisation of soil organic matter during the rainy season. Some of the organic mulch mineralises at the same time, providing the commercial crop with the benefit of a higher pool of inorganic nitrogen. The additional cover crop can recycle part of the nitrogen not used by the commercial crop and some of the nitrogen mineralised before or after this commercial cycle. Under DMC high microbial activity is responsible for higher CO2 emissions to the atmosphere, b... Mostrar Tudo |
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Thesagro: |
Agronomia; Biomassa; Cerrado; Matéria Orgânica; Planta de Cobertura; Plantio Direto; Recurso Natural; Solo. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/209113/1/CNPAF-2005-ce.pdf
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Marc: |
LEADER 02674naa a2200289 a 4500
001 1191642
005 2022-04-08
008 2005 bl uuuu u00u1 u #d
100 1 $aSCOPEL, E.
245 $aImpacts des systèmes de culture en semis direct avec couverture végétale (SCV) sur la dynamique de l'eau, de l'azote minéral et du carbone du sol dans les cerrados brésiliens.$h[electronic resource]
260 $c2005
520 $aUnder the humid tropical climate of the Brazilian cerrados, new cropping systems have become necessary to ensure sustainable agricultural production. Direct-sowing mulch-based cropping systems (DMC) introduce a cover crop before or just after the commercial crop. They help farmers enhance natural resources and produce more total biomass during the year. Crop residues protect the soil and increase organic restitution to the system. In 1999, a Franco-Brazilian collaborative project began scientific studies aimed at quantifying the impact of DMC, especially on the dynamics of water, carbon and nitrogen. DMC systems significantly decrease water runoff. In this way they effectively fight against soil erosion, even if additional infiltrated water can sometimes saturate the system and escape by drainage. The cover crop can then recycle some of that drainage loss and protect and use water resources better throughout the year. DMC systems also provide more favourable conditions that ensure the more intensive and more regular mineralisation of soil organic matter during the rainy season. Some of the organic mulch mineralises at the same time, providing the commercial crop with the benefit of a higher pool of inorganic nitrogen. The additional cover crop can recycle part of the nitrogen not used by the commercial crop and some of the nitrogen mineralised before or after this commercial cycle. Under DMC high microbial activity is responsible for higher CO2 emissions to the atmosphere, but the soil carbon balance is nonetheless positive because of the large biomass production and organic input from the introduction of the cover crop. Even under the hot and humid conditions of the cerrados, soil carbon content increases under the more productive DMC systems.
650 $aAgronomia
650 $aBiomassa
650 $aCerrado
650 $aMatéria Orgânica
650 $aPlanta de Cobertura
650 $aPlantio Direto
650 $aRecurso Natural
650 $aSolo
700 1 $aDOUZET, J. M.
700 1 $aSILVA, F. A. M. da
700 1 $aCARDOSO, A.
700 1 $aMOREIRA, J. A. A.
700 1 $aFINDELING, A.
700 1 $aBERNOUX, M.
773 $tCahiers Agricultures$gv. 14, n. 1, p. 71-75, jan./fév. 2005.
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Registro original: |
Embrapa Arroz e Feijão (CNPAF) |
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Biblioteca |
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Registro Completo
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Biblioteca(s): |
Embrapa Soja. |
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Data corrente: |
04/01/2018 |
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Data da última atualização: |
15/02/2018 |
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Tipo da produção científica: |
Boletim de Pesquisa e Desenvolvimento |
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Autoria: |
GONCALVES, S. L.; NASCIMENTO, W. B. da S.; MOREIRA, J. U. V.; PIPOLO, A. E.; ARIAS, C. A. A. |
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Afiliação: |
SERGIO LUIZ GONCALVES, CNPSO; UNOPAR; JOSE UBIRAJARA VIEIRA MOREIRA, CNPSO; ANTONIO EDUARDO PIPOLO, CNPSO; CARLOS ALBERTO ARRABAL ARIAS, CNPSO. |
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Título: |
Seleção de genótipos de soja abundantes em pelos radiculares - ano de 2016/2017. |
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Ano de publicação: |
2017 |
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Fonte/Imprenta: |
Londrina: Embrapa Soja, 2017. |
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Páginas: |
17 p. |
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Série: |
(Embrapa Soja. Boletim de pesquisa e desenvolvimento, 13). |
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ISSN: |
2178-1680 |
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Idioma: |
Português |
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Thesagro: |
Genótipo; Pelo radicular; Raiz; Soja. |
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Thesaurus NAL: |
Genotype; Root hairs; Soybeans. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/170266/1/Boletim-de-PD-13.pdf
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Marc: |
LEADER 00758nam a2200265 a 4500
001 2084167
005 2018-02-15
008 2017 bl uuuu u0uu1 u #d
022 $a2178-1680
100 1 $aGONCALVES, S. L.
245 $aSeleção de genótipos de soja abundantes em pelos radiculares - ano de 2016/2017.$h[electronic resource]
260 $aLondrina: Embrapa Soja$c2017
300 $a17 p.
490 $a(Embrapa Soja. Boletim de pesquisa e desenvolvimento, 13).
650 $aGenotype
650 $aRoot hairs
650 $aSoybeans
650 $aGenótipo
650 $aPelo radicular
650 $aRaiz
650 $aSoja
700 1 $aNASCIMENTO, W. B. da S.
700 1 $aMOREIRA, J. U. V.
700 1 $aPIPOLO, A. E.
700 1 $aARIAS, C. A. A.
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Embrapa Soja (CNPSO) |
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