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Registro Completo |
Biblioteca(s): |
Embrapa Agropecuária Oeste; Embrapa Florestas. |
Data corrente: |
10/11/2014 |
Data da última atualização: |
06/03/2015 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
PIVA, J. T.; DIECKOW, J.; BAYER, C.; ZANATTA, J. A.; MORAES, A. de; TOMAZI, M.; PAULETTI, V.; BARTH, G.; PICCOLO, M. de C. |
Afiliação: |
JONATAS TIAGO PIVA, UFPR; JEFERSON DIECKOW, UFPR; CIMÉLIO BAYER, UFRGS; JOSILEIA ACORDI ZANATTA, CNPF; ANIBAL DE MORAES, UFPR; MICHELY TOMAZI, UFRGS; VOLNEI PAULETTI, UFPR; GABRIEL BARTH, Fundação ABC para Assistência Técnica Agropecuária; MARISA DE CASSIA PICCOLO, Centro de Energia Nuclear na Agricultura/USP. |
Título: |
Soil gaseous N2O and CH4 emissions and carbon pool due to integrated crop-livestock in a subtropical Ferralsol. |
Ano de publicação: |
2014 |
Fonte/Imprenta: |
Agriculture, Ecosystems and Environment, v. 190, p. 87-93, 2014. |
Idioma: |
Inglês |
Conteúdo: |
We assessed the impact of integrated crop-livestock (CL), with silage maize (Zea mays L.) in summerand grazed annual-ryegrass (Lolium multiflorum Lam.) in winter, and continuous crop (CC), with annual-ryegrass used only as cover-crop, on net greenhouse gas emission from soil (NetGHG-S) in a subtropicalFerralsol of a 3.5-year-old experiment in Brazil. Emissions from animal excreta in CL were estimated.Soil N2O fluxes after N application to maize were higher in CL (max. 181 g N2O-N m−2h−1) than in CC(max. 132 g N2O-N m−2h−1). The cumulative annual N2O emission from soil in CL surpassed that in CCby more than three-times (4.26 vs. 1.26 kg N2O-N ha−1, p < 0.01), possibly because of supplementary Napplication to grazed ryegrass in CL (N was not applied in cover-crop ryegrass of CC) and a certain degreeof soil compaction visually observed in the first few centimetres after grazing. The estimated annual N2Oemission from excreta in CL was 2.35 kg N2O-N ha−1. Cumulative annual CH4emission was not affectedsignificantly (1.65 in CL vs. 1.08 kg CH4-C ha−1in CC, p = 0.27). Soil organic carbon (OC) stocks were notaffected by soil use systems, neither in 0?20-cm (67.88 in CL vs. 67.20 Mg ha−1in CC, p = 0.62) or 0?100-cm (234.74 in CL vs. 234.61 Mg ha−1in CC, p = 0.97). The NetGHG-S was 0.652 Mg CO2-Ceqha−1year−1higher in CL than in CC. Crop-livestock emitted more N2O than CC and no soil OC sequestration occurredto offset that emission. Management of fertiliser- and excreta-N must be focused as a strategy to mitigate NO2 fluxes in CL. MenosWe assessed the impact of integrated crop-livestock (CL), with silage maize (Zea mays L.) in summerand grazed annual-ryegrass (Lolium multiflorum Lam.) in winter, and continuous crop (CC), with annual-ryegrass used only as cover-crop, on net greenhouse gas emission from soil (NetGHG-S) in a subtropicalFerralsol of a 3.5-year-old experiment in Brazil. Emissions from animal excreta in CL were estimated.Soil N2O fluxes after N application to maize were higher in CL (max. 181 g N2O-N m−2h−1) than in CC(max. 132 g N2O-N m−2h−1). The cumulative annual N2O emission from soil in CL surpassed that in CCby more than three-times (4.26 vs. 1.26 kg N2O-N ha−1, p < 0.01), possibly because of supplementary Napplication to grazed ryegrass in CL (N was not applied in cover-crop ryegrass of CC) and a certain degreeof soil compaction visually observed in the first few centimetres after grazing. The estimated annual N2Oemission from excreta in CL was 2.35 kg N2O-N ha−1. Cumulative annual CH4emission was not affectedsignificantly (1.65 in CL vs. 1.08 kg CH4-C ha−1in CC, p = 0.27). Soil organic carbon (OC) stocks were notaffected by soil use systems, neither in 0?20-cm (67.88 in CL vs. 67.20 Mg ha−1in CC, p = 0.62) or 0?100-cm (234.74 in CL vs. 234.61 Mg ha−1in CC, p = 0.97). The NetGHG-S was 0.652 Mg CO2-Ceqha−1year−1higher in CL than in CC. Crop-livestock emitted more N2O than CC and no soil OC sequestration occurredto offset tha... Mostrar Tudo |
Palavras-Chave: |
Aquecimento global; Dairy livestock; Fertilização; Global warming mitigation; Mitigação; Subtropical soil. |
Thesagro: |
Gado; Solo. |
Categoria do assunto: |
-- A Sistemas de Cultivo |
Marc: |
LEADER 02483naa a2200313 a 4500 001 1999593 005 2015-03-06 008 2014 bl uuuu u00u1 u #d 100 1 $aPIVA, J. T. 245 $aSoil gaseous N2O and CH4 emissions and carbon pool due to integrated crop-livestock in a subtropical Ferralsol. 260 $c2014 520 $aWe assessed the impact of integrated crop-livestock (CL), with silage maize (Zea mays L.) in summerand grazed annual-ryegrass (Lolium multiflorum Lam.) in winter, and continuous crop (CC), with annual-ryegrass used only as cover-crop, on net greenhouse gas emission from soil (NetGHG-S) in a subtropicalFerralsol of a 3.5-year-old experiment in Brazil. Emissions from animal excreta in CL were estimated.Soil N2O fluxes after N application to maize were higher in CL (max. 181 g N2O-N m−2h−1) than in CC(max. 132 g N2O-N m−2h−1). The cumulative annual N2O emission from soil in CL surpassed that in CCby more than three-times (4.26 vs. 1.26 kg N2O-N ha−1, p < 0.01), possibly because of supplementary Napplication to grazed ryegrass in CL (N was not applied in cover-crop ryegrass of CC) and a certain degreeof soil compaction visually observed in the first few centimetres after grazing. The estimated annual N2Oemission from excreta in CL was 2.35 kg N2O-N ha−1. Cumulative annual CH4emission was not affectedsignificantly (1.65 in CL vs. 1.08 kg CH4-C ha−1in CC, p = 0.27). Soil organic carbon (OC) stocks were notaffected by soil use systems, neither in 0?20-cm (67.88 in CL vs. 67.20 Mg ha−1in CC, p = 0.62) or 0?100-cm (234.74 in CL vs. 234.61 Mg ha−1in CC, p = 0.97). The NetGHG-S was 0.652 Mg CO2-Ceqha−1year−1higher in CL than in CC. Crop-livestock emitted more N2O than CC and no soil OC sequestration occurredto offset that emission. Management of fertiliser- and excreta-N must be focused as a strategy to mitigate NO2 fluxes in CL. 650 $aGado 650 $aSolo 653 $aAquecimento global 653 $aDairy livestock 653 $aFertilização 653 $aGlobal warming mitigation 653 $aMitigação 653 $aSubtropical soil 700 1 $aDIECKOW, J. 700 1 $aBAYER, C. 700 1 $aZANATTA, J. A. 700 1 $aMORAES, A. de 700 1 $aTOMAZI, M. 700 1 $aPAULETTI, V. 700 1 $aBARTH, G. 700 1 $aPICCOLO, M. de C. 773 $tAgriculture, Ecosystems and Environment$gv. 190, p. 87-93, 2014.
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Embrapa Florestas (CNPF) |
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Biblioteca(s): |
Embrapa Agropecuária Oeste. |
Data corrente: |
17/11/1999 |
Data da última atualização: |
04/04/2013 |
Tipo da produção científica: |
Comunicado Técnico/Recomendações Técnicas |
Autoria: |
MELO FILHO, G. A. de; MENDES, D. S. |
Título: |
Estimativa de custo de produção de milho, nos sistemas plantio direto e convencional, safra 1999/2000. |
Ano de publicação: |
1999 |
Fonte/Imprenta: |
Dourados: Embrapa Agropecuária Oeste, 1999. |
Páginas: |
3p. |
Série: |
(Embrapa Agropecuária Oeste. Comunicado técnico, 3). |
Idioma: |
Português |
Conteúdo: |
O objetivo deste trabalho foi apresentar a estimativa dos custos de producao fixo, variavel e total da cultura do milho, no Sistema Plantio Direto (SPD) e no convencional, para a safea 1999/2000. Como resultado final obteve-se uma estimativa do custo total no SPD 3,5% menor que no convencional. |
Palavras-Chave: |
Brasil; Direct sowing; Maize; Mato Grosso do Sul; Production; Semeadura convencional; Semeadura direta; Zero tillage. |
Thesagro: |
Cerrado; Custo de Produção; Milho; Plantio; Plantio Direto; Produção; Zea Mays. |
Thesaurus NAL: |
Brazil; conventional tillage; corn; production costs; tillage. |
Categoria do assunto: |
-- |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/24906/1/COT199903.pdf
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Marc: |
LEADER 01338nam a2200385 a 4500 001 1241927 005 2013-04-04 008 1999 bl uuuu u0uu1 u #d 100 1 $aMELO FILHO, G. A. de 245 $aEstimativa de custo de produção de milho, nos sistemas plantio direto e convencional, safra 1999/2000. 260 $aDourados: Embrapa Agropecuária Oeste$c1999 300 $a3p. 490 $a(Embrapa Agropecuária Oeste. Comunicado técnico, 3). 520 $aO objetivo deste trabalho foi apresentar a estimativa dos custos de producao fixo, variavel e total da cultura do milho, no Sistema Plantio Direto (SPD) e no convencional, para a safea 1999/2000. Como resultado final obteve-se uma estimativa do custo total no SPD 3,5% menor que no convencional. 650 $aBrazil 650 $aconventional tillage 650 $acorn 650 $aproduction costs 650 $atillage 650 $aCerrado 650 $aCusto de Produção 650 $aMilho 650 $aPlantio 650 $aPlantio Direto 650 $aProdução 650 $aZea Mays 653 $aBrasil 653 $aDirect sowing 653 $aMaize 653 $aMato Grosso do Sul 653 $aProduction 653 $aSemeadura convencional 653 $aSemeadura direta 653 $aZero tillage 700 1 $aMENDES, D. S.
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