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Registro Completo
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Biblioteca(s): |
Embrapa Suínos e Aves. |
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Data corrente: |
27/10/2017 |
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Data da última atualização: |
09/05/2018 |
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Tipo da produção científica: |
Artigo em Anais de Congresso |
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Autoria: |
WUADEN, C. R.; NICOLOSO, R. da S.; GRAVE, R. A.; PIGOSSO, A. |
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Afiliação: |
CAMILA ROSANE WUADEN, UDESC/Lages; RODRIGO DA SILVEIRA NICOLOSO, CNPSA; ROBERTO ANDRÉ GRAVE, IFC/Concórdia; ADRIANA PIGOSSO, FACC. |
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Título: |
Soil organic carbon pools as affected by tillage systems and organic nitrogen sources. |
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Ano de publicação: |
2017 |
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Fonte/Imprenta: |
In: SIMPÓSIO INTERNACIONAL SOBRE GERENCIAMENTO DE RESÍDUOS AGROPECUÁRIOS E AGROINDUSTRIAIS, 5., 2017, Foz do Iguaçu, Anais... Concórdia: Sbera: Embrapa Suínos e Aves, 2017. SIGERA. p. 41-44. |
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Idioma: |
Inglês |
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Conteúdo: |
ABSTRACT: We assessed the impact of organic N sources on total organic carbon (TOC), particulate organic carbon (POC), and mineral-associated organic carbon (MAOC) pools in a Nitisol from Southern Brazil under contrasting soil tillage systems. The tillage systems were conventional tillage (CT) and no-tillage (NT). The tested N sources were: 140 kg N ha-1 (total N input) either as mineral fertilizer (urea; MIN), pig slurry (PS), anaerobically digested pig slurry (ADS) and composted pig slurry (CS), besides a control without fertilization (CTR). TOC stocks decreased by 1.0 and 5.1 Mg C ha-1 after two years of CT in both 0-5 and 0-30 cm soil layers, respectively. NT increased TOC stocks by 2.3 Mg C ha-1 at the soil surface and decrease by 1.7 Mg C ha-1 at the 0-30 cm soil layer. NT had higher POC and MAOC stocks than the CT soil. POC was a more sensitive pool than MAOC in response to soil tillage and fertilization practices. Long-term and continuous assessment of SOC pools is needed for evaluation of the impact of organic N sources for C sequestration in NT soil. |
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Palavras-Chave: |
Carbono orgânico; Nitrogênio orgânico. |
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Thesagro: |
Manejo do solo; Plantio. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/165681/1/final8452.pdf
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Marc: |
LEADER 01809nam a2200193 a 4500
001 2078342
005 2018-05-09
008 2017 bl uuuu u00u1 u #d
100 1 $aWUADEN, C. R.
245 $aSoil organic carbon pools as affected by tillage systems and organic nitrogen sources.$h[electronic resource]
260 $aIn: SIMPÓSIO INTERNACIONAL SOBRE GERENCIAMENTO DE RESÍDUOS AGROPECUÁRIOS E AGROINDUSTRIAIS, 5., 2017, Foz do Iguaçu, Anais... Concórdia: Sbera: Embrapa Suínos e Aves, 2017. SIGERA. p. 41-44.$c2017
520 $aABSTRACT: We assessed the impact of organic N sources on total organic carbon (TOC), particulate organic carbon (POC), and mineral-associated organic carbon (MAOC) pools in a Nitisol from Southern Brazil under contrasting soil tillage systems. The tillage systems were conventional tillage (CT) and no-tillage (NT). The tested N sources were: 140 kg N ha-1 (total N input) either as mineral fertilizer (urea; MIN), pig slurry (PS), anaerobically digested pig slurry (ADS) and composted pig slurry (CS), besides a control without fertilization (CTR). TOC stocks decreased by 1.0 and 5.1 Mg C ha-1 after two years of CT in both 0-5 and 0-30 cm soil layers, respectively. NT increased TOC stocks by 2.3 Mg C ha-1 at the soil surface and decrease by 1.7 Mg C ha-1 at the 0-30 cm soil layer. NT had higher POC and MAOC stocks than the CT soil. POC was a more sensitive pool than MAOC in response to soil tillage and fertilization practices. Long-term and continuous assessment of SOC pools is needed for evaluation of the impact of organic N sources for C sequestration in NT soil.
650 $aManejo do solo
650 $aPlantio
653 $aCarbono orgânico
653 $aNitrogênio orgânico
700 1 $aNICOLOSO, R. da S.
700 1 $aGRAVE, R. A.
700 1 $aPIGOSSO, A.
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Embrapa Suínos e Aves (CNPSA) |
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