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Registro Completo |
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Biblioteca(s): |
Embrapa Agrobiologia. |
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Data corrente: |
10/06/1999 |
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Data da última atualização: |
10/06/1999 |
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Autoria: |
NEVES, M. C. P.; RUMJANEK, N. G. |
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Título: |
Diversity and adaptability of soybean and cowpea rhizobia in tropical soils. |
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Ano de publicação: |
1997 |
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Fonte/Imprenta: |
Soil Biology and Biochemistry, Oxford, v. 29, n. 5/6, p. 889-895, 1997. |
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Idioma: |
Inglês |
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Conteúdo: |
The current interest on biodiversity, allied with the use of powerful molecular biology techniques, are revealing the nodulation abilities of tropical legumes, their preferences in terms of relationships with rhizobia, the dynamics of the rhizobia population, and data are accumulating on the cowpea group of tropical rhizobia. Studies on the ecology of cowpea-nodulating rhizobia in soils from the semi-arid region of Brazil, are providing an understanding of the ecology of soybean nodulating rhizobia in Brazilian soils and are revealing a large community of native strains capable of nodulating soybeans in soils where soybeans never have been planted. Many isolates showed a limited ability to nodulate soybean roots and formed nodule-like structures, or pseudo-nodules. Recent host range analysis of known rhizobia species has generated substantial data that is rapidly changing recognized patterns of symbiotic specificity. Cowpeas, soybeans and common beans nodulate with many different species of rhizobia, and the occurrence of both slow- and fast-growing strains in the same plant species has been reported for many genera of tropical legumes. This review will focus on recent data on the diversity of tropical rhizobia and their adaptability to tropical soils. |
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Palavras-Chave: |
Adaptação; Adaptation; Caupi. |
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Thesagro: |
Aclimatação; Biologia Molecular; Diversificação de Cultura; Feijão de Corda; Rhizobium; Soja; Solo Tropical; Taxonomia. |
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Thesaurus Nal: |
biodiversity; cowpeas; molecular biology; soybeans; taxonomy; tropical soils. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02167naa a2200337 a 4500
001 1621092
005 1999-06-10
008 1997 bl uuuu u00u1 u #d
100 1 $aNEVES, M. C. P.
245 $aDiversity and adaptability of soybean and cowpea rhizobia in tropical soils.
260 $c1997
520 $aThe current interest on biodiversity, allied with the use of powerful molecular biology techniques, are revealing the nodulation abilities of tropical legumes, their preferences in terms of relationships with rhizobia, the dynamics of the rhizobia population, and data are accumulating on the cowpea group of tropical rhizobia. Studies on the ecology of cowpea-nodulating rhizobia in soils from the semi-arid region of Brazil, are providing an understanding of the ecology of soybean nodulating rhizobia in Brazilian soils and are revealing a large community of native strains capable of nodulating soybeans in soils where soybeans never have been planted. Many isolates showed a limited ability to nodulate soybean roots and formed nodule-like structures, or pseudo-nodules. Recent host range analysis of known rhizobia species has generated substantial data that is rapidly changing recognized patterns of symbiotic specificity. Cowpeas, soybeans and common beans nodulate with many different species of rhizobia, and the occurrence of both slow- and fast-growing strains in the same plant species has been reported for many genera of tropical legumes. This review will focus on recent data on the diversity of tropical rhizobia and their adaptability to tropical soils.
650 $abiodiversity
650 $acowpeas
650 $amolecular biology
650 $asoybeans
650 $ataxonomy
650 $atropical soils
650 $aAclimatação
650 $aBiologia Molecular
650 $aDiversificação de Cultura
650 $aFeijão de Corda
650 $aRhizobium
650 $aSoja
650 $aSolo Tropical
650 $aTaxonomia
653 $aAdaptação
653 $aAdaptation
653 $aCaupi
700 1 $aRUMJANEK, N. G.
773 $tSoil Biology and Biochemistry, Oxford$gv. 29, n. 5/6, p. 889-895, 1997.
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Registro original: |
Embrapa Agrobiologia (CNPAB) |
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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: |
29/10/2019 |
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Data da última atualização: |
29/10/2019 |
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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: |
GUARESHI, R. F.; MARTINS, M. dos R.; SARKIS, L. F.; ALVES, B. J. R.; JANTALIA, C. P.; BODDEY, R. M.; URQUIAGA, S. |
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Afiliação: |
Roni Fernandes Guareschi, UFRRJ; Marcio dos Reis Martins, UFRRJ; Leonardo Fernandes Sarkis, UFLA; BRUNO JOSE RODRIGUES ALVES, CNPAB; CLAUDIA POZZI JANTALIA, CNPAB; ROBERT MICHAEL BODDEY, CNPAB; SEGUNDO SACRAMENTO U CABALLERO, CNPAB. |
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Título: |
An analysis of energy efficiency and greenhouse gas emissions from organic soybean cultivation in Brazil. |
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Ano de publicação: |
2019 |
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Fonte/Imprenta: |
Semina: Ciências Agrárias, Londrina, v. 40, n. 6, suplemento 3, p. 3461-3476, 2019 |
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DOI: |
10.5433/1679-0359.2019v40n6Supl3p3461 |
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Idioma: |
Inglês |
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Notas: |
Título em Português: Uma análise da eficiência energética e da emissão de gases de efeito estufa no cultivo orgânico de soja no Brasil. |
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Conteúdo: |
The assessment of energy efficiency (EE) and greenhouse gas (GHG) emissions can highlight the sustainability of agro-systems and decision-making regarding reduction of production costs and environmental pollution. In this context, the objective of this work was to evaluate the EE and GHG emissions (CO2, CH4 e N2O) of a soybean crop under organic cultivation in different regions of Brazil in the agricultural year 2014-2015. For this, 19 soybean areas were evaluated. The inputs and outputs of the agricultural operations and / or inputs used were calculated by multiplying the quantity used by their calorific value or energy coefficient at each stage of production. The energy efficiency was obtained by the ratio between the amount of total output energy and the total energy consumption
during the production process. In order to estimate GHG emissions, the principles of the life cycle assessment methodology and recommendations of the Intergovernmental Panel on Climate Change (IPCC) were applied. For each 1.0 MJ of energy consumed in the organic production of soybeans, an average of 7.9 MJ of renewable energy was produced in the form of grains of this crop. The main energy costs of growing these organic crops were with seeds, fuel and with tractors, machines and agricultural implements (TMI). For each 1 kg of organic grain produced from soybeans, 0.19 kg of CO2eq are emitted during their production and delivery cycles in the warehouse. The main sources of CO2eq emission to the atmosphere were the seeds, fuels and organic fertilizers MenosThe assessment of energy efficiency (EE) and greenhouse gas (GHG) emissions can highlight the sustainability of agro-systems and decision-making regarding reduction of production costs and environmental pollution. In this context, the objective of this work was to evaluate the EE and GHG emissions (CO2, CH4 e N2O) of a soybean crop under organic cultivation in different regions of Brazil in the agricultural year 2014-2015. For this, 19 soybean areas were evaluated. The inputs and outputs of the agricultural operations and / or inputs used were calculated by multiplying the quantity used by their calorific value or energy coefficient at each stage of production. The energy efficiency was obtained by the ratio between the amount of total output energy and the total energy consumption
during the production process. In order to estimate GHG emissions, the principles of the life cycle assessment methodology and recommendations of the Intergovernmental Panel on Climate Change (IPCC) were applied. For each 1.0 MJ of energy consumed in the organic production of soybeans, an average of 7.9 MJ of renewable energy was produced in the form of grains of this crop. The main energy costs of growing these organic crops were with seeds, fuel and with tractors, machines and agricultural implements (TMI). For each 1 kg of organic grain produced from soybeans, 0.19 kg of CO2eq are emitted during their production and delivery cycles in the warehouse. The main sources of CO2eq emission to the atm... Mostrar Tudo |
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Palavras-Chave: |
Energy greenhouse gases; Grain production; Organic agriculture. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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Marc: |
LEADER 02506naa a2200253 a 4500
001 2113604
005 2019-10-29
008 2019 bl --- 0-- u #d
024 7 $a10.5433/1679-0359.2019v40n6Supl3p3461$2DOI
100 1 $aGUARESHI, R. F.
245 $aAn analysis of energy efficiency and greenhouse gas emissions from organic soybean cultivation in Brazil.$h[electronic resource]
260 $c2019
500 $aTítulo em Português: Uma análise da eficiência energética e da emissão de gases de efeito estufa no cultivo orgânico de soja no Brasil.
520 $aThe assessment of energy efficiency (EE) and greenhouse gas (GHG) emissions can highlight the sustainability of agro-systems and decision-making regarding reduction of production costs and environmental pollution. In this context, the objective of this work was to evaluate the EE and GHG emissions (CO2, CH4 e N2O) of a soybean crop under organic cultivation in different regions of Brazil in the agricultural year 2014-2015. For this, 19 soybean areas were evaluated. The inputs and outputs of the agricultural operations and / or inputs used were calculated by multiplying the quantity used by their calorific value or energy coefficient at each stage of production. The energy efficiency was obtained by the ratio between the amount of total output energy and the total energy consumption during the production process. In order to estimate GHG emissions, the principles of the life cycle assessment methodology and recommendations of the Intergovernmental Panel on Climate Change (IPCC) were applied. For each 1.0 MJ of energy consumed in the organic production of soybeans, an average of 7.9 MJ of renewable energy was produced in the form of grains of this crop. The main energy costs of growing these organic crops were with seeds, fuel and with tractors, machines and agricultural implements (TMI). For each 1 kg of organic grain produced from soybeans, 0.19 kg of CO2eq are emitted during their production and delivery cycles in the warehouse. The main sources of CO2eq emission to the atmosphere were the seeds, fuels and organic fertilizers
653 $aEnergy greenhouse gases
653 $aGrain production
653 $aOrganic agriculture
700 1 $aMARTINS, M. dos R.
700 1 $aSARKIS, L. F.
700 1 $aALVES, B. J. R.
700 1 $aJANTALIA, C. P.
700 1 $aBODDEY, R. M.
700 1 $aURQUIAGA, S.
773 $tSemina: Ciências Agrárias, Londrina$gv. 40, n. 6, suplemento 3, p. 3461-3476, 2019
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