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Registro Completo |
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Biblioteca(s): |
Embrapa Agropecuária Oeste; Embrapa Amapá; Embrapa Amazônia Ocidental; Embrapa Hortaliças; Embrapa Meio-Norte; Embrapa Pantanal; Embrapa Roraima; Embrapa Semiárido; Embrapa Tabuleiros Costeiros. |
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Data corrente: |
23/03/1999 |
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Data da última atualização: |
02/10/2023 |
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Tipo da produção científica: |
Comunicado Técnico/Recomendações Técnicas |
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Autoria: |
ANJOS, J. B. dos; BRITO, L. T. de L. |
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Afiliação: |
JOSE BARBOSA DOS ANJOS, CPATSA; LUIZA TEIXEIRA DE LIMA BRITO, CPATSA. |
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Título: |
Sistema de cultivo em camalhões com sulcos barrados. |
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Ano de publicação: |
1999 |
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Fonte/Imprenta: |
Petrolina: Embrapa Semi-Árido, 1999. |
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Páginas: |
Np. |
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Descrição Física: |
il. |
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Série: |
(Embrapa Semi-Árido. Instruções técnicas, 10). |
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ISSN: |
1415-5095 |
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Idioma: |
Português |
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Conteúdo: |
O sistema de sulcos barrados é uma técnica de captação de água de chuva no local do plantio, podendo ser feito manual ou com tração animal. O documento apresenta a Descrição do equipamento; Requisitos básicos; Preparo do terreno; Procedimentos; Esforço de tração; Rendimento Operacional; Vantagens. |
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Palavras-Chave: |
Agricultural mechanization; Agua de chuva; Appropriate technology; Barrado de sulco; Barrador de sulco; Brasil; Camalhões; Captacao d'agua; Captacao in situ; Cultural methods; Furrow; In situ water; Pernambuco; Petrolina; Sistema de sulcos barrados; Sulco barrado; Sulcos barrados; Watter harvesting. |
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Thesagro: |
Agricultura; Camalhão; Equipamento; Equipamento Agrícola; Irrigação; Manejo do Solo; Mecanização Agrícola; Pratica Cultural; Sistema de Cultivo; Sulcador; Tecnologia; Tecnologia Apropriada. |
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Thesaurus Nal: |
agriculture; cropping systems; equipment; harvesting; intercropping; irrigation; soil management; technology. |
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Categoria do assunto: |
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A Sistemas de Cultivo
X Pesquisa, Tecnologia e Engenharia |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/256345/1/Sistema-de-cultivo-Instrucoes-Tecnicas-10.pdf
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Marc: |
LEADER 01938nam a2200613 a 4500
001 1131476
005 2023-10-02
008 1999 bl uuuu u0uu1 u #d
022 $a1415-5095
100 1 $aANJOS, J. B. dos
245 $aSistema de cultivo em camalhões com sulcos barrados.
260 $aPetrolina: Embrapa Semi-Árido$c1999
300 $aNp.$cil.
490 $a(Embrapa Semi-Árido. Instruções técnicas, 10).
520 $aO sistema de sulcos barrados é uma técnica de captação de água de chuva no local do plantio, podendo ser feito manual ou com tração animal. O documento apresenta a Descrição do equipamento; Requisitos básicos; Preparo do terreno; Procedimentos; Esforço de tração; Rendimento Operacional; Vantagens.
650 $aagriculture
650 $acropping systems
650 $aequipment
650 $aharvesting
650 $aintercropping
650 $airrigation
650 $asoil management
650 $atechnology
650 $aAgricultura
650 $aCamalhão
650 $aEquipamento
650 $aEquipamento Agrícola
650 $aIrrigação
650 $aManejo do Solo
650 $aMecanização Agrícola
650 $aPratica Cultural
650 $aSistema de Cultivo
650 $aSulcador
650 $aTecnologia
650 $aTecnologia Apropriada
653 $aAgricultural mechanization
653 $aAgua de chuva
653 $aAppropriate technology
653 $aBarrado de sulco
653 $aBarrador de sulco
653 $aBrasil
653 $aCamalhões
653 $aCaptacao d'agua
653 $aCaptacao in situ
653 $aCultural methods
653 $aFurrow
653 $aIn situ water
653 $aPernambuco
653 $aPetrolina
653 $aSistema de sulcos barrados
653 $aSulco barrado
653 $aSulcos barrados
653 $aWatter harvesting
700 1 $aBRITO, L. T. de L.
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Registro original: |
Embrapa Semiárido (CPATSA) |
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URL |
Voltar
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Pecuária Sudeste. Para informações adicionais entre em contato com cppse.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Florestas; Embrapa Pecuária Sudeste. |
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Data corrente: |
22/11/2017 |
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Data da última atualização: |
15/12/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
B - 1 |
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Autoria: |
PONTES, L. da S.; BARRO, R. S.; SAVIAN, J. V.; BERNDT, A.; MOLETTA, J. L.; PORFIRIO-DA-SILVA, V.; BAYER, C.; CARVALHO, P. C. de F. |
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Afiliação: |
Laíse da Silveira Pontes, IAPAR; Raquel Santiago Barro, UFRGS; Jean Victor Savian, UFRGS; ALEXANDRE BERNDT, CPPSE; José Luiz Moletta, IAPAR; VANDERLEY PORFIRIO DA SILVA, CNPF; Cimélio Bayer, UFRGS; Paulo César de Faccio Carvalho, UFRGS. |
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Título: |
Performance and methane emissions by beef heifer grazing in temperate pastures and in integrated crop-livestock systems: the effect of shade and nitrogen fertilization. |
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Ano de publicação: |
2018 |
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Fonte/Imprenta: |
Agriculture, Ecosystems and Environment, v. 253, p. 90-97, feb. 2018. |
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DOI: |
doi.org/10.1016/j.agee.2017.11.009 |
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Idioma: |
Inglês |
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Conteúdo: |
Methane (CH4) emissions from enteric fermentation by cattle are the main source of greenhouse gases in livestock systems, but scarce information is available on the effect of production scenarios on CH4 emissions. The objective of this study was to assess animal performance and CH4 emissions by beef heifers grazing in a mixed Lolium multiflorum ×Avena strigosa pasture in two different types of integrated systems, crop-livestock only (CL) or crop-livestock-tree (CLT), and with two nitrogen (N) supply levels (90 and 180 kg N ha−1, N90 and N180, respectively). The study was performed during the winter season (i.e., stocking season) over three years (2012?2014). Pasture shading by 6- to 8-year-old trees in the CLT system led to a reduction in the total annual herbage accumulation of approximately 2.6 Mg dry matter ha−1 (−51%) and a reduction in winter carrying capacity of 0.5 stock units ha−1 in comparison to the CL system. Average daily gain (ADG) was reduced by 32% in CLT compared to CL. Average CH4 emissions were 163 ± 9.12 g CH4 day−1 in heifers with an initial average live weight (LW) of approximately 250 kg. Emissions of CH4 per kg of LW did not differ between treatments (P > 0.05) with a mean of 0.58 ± 0.030 g kg−1. However, there were significant differences between treatments and among years when CH4 was expressed in g kg ADG−1 and kg ha−1 day−1. Per unit area, CH4 production ranged between 0.51 ± 0.05 (CLT N180) and 0.86 ± 0.12 kg ha−1 day−1 (CL N180). Possible strategies to reduce losses in animal production in the CLT systems are discussed, as well as the potential of C sequestration by woody biomass of eucalyptus trees to mitigate CH4 emissions. MenosMethane (CH4) emissions from enteric fermentation by cattle are the main source of greenhouse gases in livestock systems, but scarce information is available on the effect of production scenarios on CH4 emissions. The objective of this study was to assess animal performance and CH4 emissions by beef heifers grazing in a mixed Lolium multiflorum ×Avena strigosa pasture in two different types of integrated systems, crop-livestock only (CL) or crop-livestock-tree (CLT), and with two nitrogen (N) supply levels (90 and 180 kg N ha−1, N90 and N180, respectively). The study was performed during the winter season (i.e., stocking season) over three years (2012?2014). Pasture shading by 6- to 8-year-old trees in the CLT system led to a reduction in the total annual herbage accumulation of approximately 2.6 Mg dry matter ha−1 (−51%) and a reduction in winter carrying capacity of 0.5 stock units ha−1 in comparison to the CL system. Average daily gain (ADG) was reduced by 32% in CLT compared to CL. Average CH4 emissions were 163 ± 9.12 g CH4 day−1 in heifers with an initial average live weight (LW) of approximately 250 kg. Emissions of CH4 per kg of LW did not differ between treatments (P > 0.05) with a mean of 0.58 ± 0.030 g kg−1. However, there were significant differences between treatments and among years when CH4 was expressed in g kg ADG−1 and kg ha−1 day−1. Per unit area, CH4 production ranged between 0.51 ± 0.05 (CLT N180) and... Mostrar Tudo |
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Palavras-Chave: |
Black oat; C3 grasses; Eucalyptus dunnii; Gases de efeito estufa; ILPF; Italian ryegrass. |
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Thesagro: |
Avena Strigosa; Lolium Multiflorum; Metano; Pastagem; Pecuária. |
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Thesaurus NAL: |
Beef cattle; Greenhouse gases; Pastures. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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Marc: |
LEADER 02923naa a2200385 a 4500
001 2086617
005 2023-12-15
008 2018 bl uuuu u00u1 u #d
024 7 $adoi.org/10.1016/j.agee.2017.11.009$2DOI
100 1 $aPONTES, L. da S.
245 $aPerformance and methane emissions by beef heifer grazing in temperate pastures and in integrated crop-livestock systems$bthe effect of shade and nitrogen fertilization.$h[electronic resource]
260 $c2018
520 $aMethane (CH4) emissions from enteric fermentation by cattle are the main source of greenhouse gases in livestock systems, but scarce information is available on the effect of production scenarios on CH4 emissions. The objective of this study was to assess animal performance and CH4 emissions by beef heifers grazing in a mixed Lolium multiflorum ×Avena strigosa pasture in two different types of integrated systems, crop-livestock only (CL) or crop-livestock-tree (CLT), and with two nitrogen (N) supply levels (90 and 180 kg N ha−1, N90 and N180, respectively). The study was performed during the winter season (i.e., stocking season) over three years (2012?2014). Pasture shading by 6- to 8-year-old trees in the CLT system led to a reduction in the total annual herbage accumulation of approximately 2.6 Mg dry matter ha−1 (−51%) and a reduction in winter carrying capacity of 0.5 stock units ha−1 in comparison to the CL system. Average daily gain (ADG) was reduced by 32% in CLT compared to CL. Average CH4 emissions were 163 ± 9.12 g CH4 day−1 in heifers with an initial average live weight (LW) of approximately 250 kg. Emissions of CH4 per kg of LW did not differ between treatments (P > 0.05) with a mean of 0.58 ± 0.030 g kg−1. However, there were significant differences between treatments and among years when CH4 was expressed in g kg ADG−1 and kg ha−1 day−1. Per unit area, CH4 production ranged between 0.51 ± 0.05 (CLT N180) and 0.86 ± 0.12 kg ha−1 day−1 (CL N180). Possible strategies to reduce losses in animal production in the CLT systems are discussed, as well as the potential of C sequestration by woody biomass of eucalyptus trees to mitigate CH4 emissions.
650 $aBeef cattle
650 $aGreenhouse gases
650 $aPastures
650 $aAvena Strigosa
650 $aLolium Multiflorum
650 $aMetano
650 $aPastagem
650 $aPecuária
653 $aBlack oat
653 $aC3 grasses
653 $aEucalyptus dunnii
653 $aGases de efeito estufa
653 $aILPF
653 $aItalian ryegrass
700 1 $aBARRO, R. S.
700 1 $aSAVIAN, J. V.
700 1 $aBERNDT, A.
700 1 $aMOLETTA, J. L.
700 1 $aPORFIRIO-DA-SILVA, V.
700 1 $aBAYER, C.
700 1 $aCARVALHO, P. C. de F.
773 $tAgriculture, Ecosystems and Environment$gv. 253, p. 90-97, feb. 2018.
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Registro original: |
Embrapa Pecuária Sudeste (CPPSE) |
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