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Registro Completo |
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Biblioteca(s): |
Embrapa Agrobiologia. |
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Data corrente: |
18/04/2000 |
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Data da última atualização: |
18/04/2000 |
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Autoria: |
ALVES, B. J. R.; REZENDE, C. de P.; RESENDE, A. S.; MACEDO, R.; TARRE, R. M.; URQUIAGA, S.; BODDEY, R. M. |
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Título: |
Estimation of N2 fixation in Desmodium ovalifolium from the relative ureide abundance of stem solutes: Comparison with the 15N-dilution and an in situ soil core technique. |
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Ano de publicação: |
2000 |
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Fonte/Imprenta: |
Nutrient Cycling in Agroecosystems, v. 56, p. 177-193, 2000. |
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Idioma: |
Inglês |
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Conteúdo: |
Many, but not all, legumes of tropical origin, transport fixed N from the nodules to the shoot tissue in the form of ureides, and the mineral N absorbed from the soil is principally transported in the form of nitrate. The analysis of stem xylem sap, or hot-water extracts of stem tissue, for ureide and nitrate has been used successfully to quantify BNF contributions to several grain legumes and more recently to some shrub and forage legumes. The objective of this study was to investigate the application of this technique to the quantification of the contribution of BNF to the forage legume Desmodium ovalifolium by comparing the relative ureide abundance (RUA) of stem extracts of this plant with simultaneous estimates of BNF obtained using the 15N isotope dilution technique. The first experiment was performed in pots of soil, taken from a grazing study, amended with 15N-labelled organic matter at four different application rates. The ureide concentration in the stem extracts reflected the changes in BNF activity during plant growth and the RUA was closely correlated with the proportion of N derived from BNF as determined from the 15N technique (r2 = 0.86 and 0.88 for inoculated and non-inoculated and non-inoculated plants, respectively). The use of a calibration curve derived from a previous study where the same legume was fed increasing concentrations of 15N labelled nitrate in sand/vermiculite culture, resulted in an over-estimation of the BNF contribution which may have been due to a significant uptake of ammonium from this acidic soil. The second experiment was performed in field plots and a good agreement was found between the estimates of BNF derived from using the ureide and 15N dilution techniques at two harvests six months apart. The uptake of soil N by the D. ovalifolium and two forage grasses (Brachiaria humidicola and Panicum maximum) was estimated using an in situ soil core technique, and, while the uptake of N by the grasses was successfully estimated, this technique underestimated the N derived from the soil by the legume as determined by the ureide and 15N dilution techniques. MenosMany, but not all, legumes of tropical origin, transport fixed N from the nodules to the shoot tissue in the form of ureides, and the mineral N absorbed from the soil is principally transported in the form of nitrate. The analysis of stem xylem sap, or hot-water extracts of stem tissue, for ureide and nitrate has been used successfully to quantify BNF contributions to several grain legumes and more recently to some shrub and forage legumes. The objective of this study was to investigate the application of this technique to the quantification of the contribution of BNF to the forage legume Desmodium ovalifolium by comparing the relative ureide abundance (RUA) of stem extracts of this plant with simultaneous estimates of BNF obtained using the 15N isotope dilution technique. The first experiment was performed in pots of soil, taken from a grazing study, amended with 15N-labelled organic matter at four different application rates. The ureide concentration in the stem extracts reflected the changes in BNF activity during plant growth and the RUA was closely correlated with the proportion of N derived from BNF as determined from the 15N technique (r2 = 0.86 and 0.88 for inoculated and non-inoculated and non-inoculated plants, respectively). The use of a calibration curve derived from a previous study where the same legume was fed increasing concentrations of 15N labelled nitrate in sand/vermiculite culture, resulted in an over-estimation of the BNF contribution which may have bee... Mostrar Tudo |
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Palavras-Chave: |
BNF; FBN; Fixação biologica de nitrogênio; N; Nitrogen fixing bacteria. |
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Thesagro: |
Diluição Isotópica; Mineralização; Nitrogênio; Solo. |
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Thesaurus Nal: |
mineralization; nitrogen; soil; tracer techniques. |
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Categoria do assunto: |
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Marc: |
LEADER 03144naa a2200349 a 4500
001 1621144
005 2000-04-18
008 2000 bl --- 0-- u #d
100 1 $aALVES, B. J. R.
245 $aEstimation of N2 fixation in Desmodium ovalifolium from the relative ureide abundance of stem solutes$bComparison with the 15N-dilution and an in situ soil core technique.
260 $c2000
520 $aMany, but not all, legumes of tropical origin, transport fixed N from the nodules to the shoot tissue in the form of ureides, and the mineral N absorbed from the soil is principally transported in the form of nitrate. The analysis of stem xylem sap, or hot-water extracts of stem tissue, for ureide and nitrate has been used successfully to quantify BNF contributions to several grain legumes and more recently to some shrub and forage legumes. The objective of this study was to investigate the application of this technique to the quantification of the contribution of BNF to the forage legume Desmodium ovalifolium by comparing the relative ureide abundance (RUA) of stem extracts of this plant with simultaneous estimates of BNF obtained using the 15N isotope dilution technique. The first experiment was performed in pots of soil, taken from a grazing study, amended with 15N-labelled organic matter at four different application rates. The ureide concentration in the stem extracts reflected the changes in BNF activity during plant growth and the RUA was closely correlated with the proportion of N derived from BNF as determined from the 15N technique (r2 = 0.86 and 0.88 for inoculated and non-inoculated and non-inoculated plants, respectively). The use of a calibration curve derived from a previous study where the same legume was fed increasing concentrations of 15N labelled nitrate in sand/vermiculite culture, resulted in an over-estimation of the BNF contribution which may have been due to a significant uptake of ammonium from this acidic soil. The second experiment was performed in field plots and a good agreement was found between the estimates of BNF derived from using the ureide and 15N dilution techniques at two harvests six months apart. The uptake of soil N by the D. ovalifolium and two forage grasses (Brachiaria humidicola and Panicum maximum) was estimated using an in situ soil core technique, and, while the uptake of N by the grasses was successfully estimated, this technique underestimated the N derived from the soil by the legume as determined by the ureide and 15N dilution techniques.
650 $amineralization
650 $anitrogen
650 $asoil
650 $atracer techniques
650 $aDiluição Isotópica
650 $aMineralização
650 $aNitrogênio
650 $aSolo
653 $aBNF
653 $aFBN
653 $aFixação biologica de nitrogênio
653 $aN
653 $aNitrogen fixing bacteria
700 1 $aREZENDE, C. de P.
700 1 $aRESENDE, A. S.
700 1 $aMACEDO, R.
700 1 $aTARRE, R. M.
700 1 $aURQUIAGA, S.
700 1 $aBODDEY, R. M.
773 $tNutrient Cycling in Agroecosystems$gv. 56, p. 177-193, 2000.
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Registro original: |
Embrapa Agrobiologia (CNPAB) |
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| Registros recuperados : 21 | |
| 1. |  | RESENDE, A. S. de; TARRE, R. M.; REZENDE, C. de P.; BODDEY, R. M.; URQUIAGA, S.; ALVES, B. J. R. Quantificacao da FBN em Desmodium ovalifolium crescido no campo, utilizando-se as tecnicas de abundancia relativa de ureidos e de diluicao isotopica de 15N. In: CONGRESSO LATINO AMERICANO DE CIENCIA DO SOLO, 13.; REUNIAO BRASILEIRA DE BIOLOGIA DO SOLO, 1.; SIMPOSIO BRASILEIRO SOBRE MICROBIOLOGIA DO SOLO, 4., ago. 1996, Aguas de Lindoia-SP. Resumos... Aguas de Lindoia, SP: USP / SLCS / SBCS, 1996. Comissao 3. Trabalho n.79. 1 CD-ROM.| Biblioteca(s): Embrapa Agrobiologia. |
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| 3. | | FERREIRA, E.; RESENDE, A.; QUESADA, D.; GALINDO, L.; MACEDO, R.; TARRÉ, R.; CAMPOS, D. V.; OLIVEIRA, O. C. de; ALVES, B. J. R.; BODDEY, R. M.; URQUIAGA, S. Avaliação do consumo de gramíneas e leguminosas por meio das fezes de bovinos, no período seco em condições de pastagens consorciadas na região de Uberlândia-MG. Seropédica: EMBRAPA-CNPAB, 1999. 4 p. (EMBRAPA-CNPAB. Pesquisa em Andamento, 29).| Biblioteca(s): Embrapa Agrobiologia. |
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| 4. | | FERREIRA, E.; LOPES, W.; MOTA, R. S. S.; TARRE, R.; MACEDO, R.; OLIVEIRA, O. C. de; ALVES, B. J. R.; URQUIAGA, S.; BODDEY, R. M. Ciclagem de nitrogênio das fezes bovinas no periodo seco, em pastagem de Brachiaria decumbens Stapf. Prain. Fl., localizada no ecossistema de cerrado em Santo Antonio de Goias-Goias. In: REUNIÃO BRASILEIRA DE MANEJO E CONSERVAÇÃO DO SOLO E DA ÁGUA, 13., 2000, Ilhéus. Resumos... Ilhéus: CEPLAC/CEPEC, 2000. p. 791-792. CD ROM.| Biblioteca(s): Embrapa Agrobiologia. |
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| 5. | | TARRÉ, R. M.; MACEDO, R. B.; CANTARUTTI, R. B.; REZENDE, C. de P.; PEREIRA, J. M.; FERREIRA, E.; ALVES, B. J. R.; URQUIAGA, S.; BODDEY, R. M. Carbon accumulation in soils under brachiaria pastures in the Atlantic Rorest region of the South of Bahia, Brazil. In: INTERNATIONAL GRASSLAND CONGRESS PROCEEDINGS, 24; INTERNATIONAL RANGELAND CONGRESS, 11, 2021 kentucky. Sustainable Use of Grassland and Rangeland Resources for Improved Livelihoods: proceeding...kentucky: University of kentucky. 2022.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Agrobiologia. |
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| 6. | | BODDEY, R. M.; TARRÉ, R. M.; MACEDO, R. B.; REZENDE, C. de P.; PEREIRA, J. M.; ALVES, B. J. R.; URQUIAGA, S. Cycling of N and P in grass-alone (Brachiaria) and mixed grass/legume (Brachiaria/ desmodium ovalifolium) grazed pastures in the Atlantic Forest Region of Brazil. In: INTERNATIONAL GRASSLAND CONGRESS PROCEEDINGS, 24; INTERNATIONAL RANGELAND CONGRESS, 11, 2021 kentucky. Sustainable Use of Grassland and Rangeland Resources for Improved Livelihoods: proceeding...kentucky: University of kentucky, 2022.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Agrobiologia. |
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| 7. | | TARRÉ, R. M.; MACEDO, R.; REZENDE, C. de P.; PEREIRA, J. M.; URQUIAGA, S.; BODDEY, R. M.; ALVES, B. J. R. Cycling of P in mixed grass/legume and grass alone Brachiaria pastures in the Atlantic forest region of Brazil. In: INTERNATIONAL SYMPOSIUM PHOSPHORUS DYNAMICS IN SOIL-PLANT CONTINUUM, 3rd., 2006, Uberlândia. Proceedings... Uberlândia: Embrapa Milho e Sorgo, 2006. p. 206-207. Edited by: Vera M. C. Alves, Claudia T. Guimarães, Jurandir V. de Magalhães, Robert E. Schaffert, Antônio Marcos Coelho, Antônio F. de Castro Bahia Filho, Derli P. Santana.| Biblioteca(s): Embrapa Agrobiologia. |
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| 8. | | MACEDO R.; TARRÉ, R. M.; FERREIRA, E.; REZENDE, C. de P.; PEREIRA, J. M.; CADISCH, G.; COSTA, J. R.; ALVES, B. J. R.; URQUIAGA, S.; BODDEY, R. M. Forage intake and botanical composition of feed for cattle fed Brachiaria/legume mixtures. Sci. Agric., Piracicaba, v. 67, n. 4, p.384-392.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 2 |
| Biblioteca(s): Embrapa Agrobiologia. |
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| 9. | | CANTARUTTI, R. B.; TARRÉ, R. M.; MACEDO, R. B.; REZENDE, C. de P.; PEREIRA, J. M.; FERREIRA, E.; ALVES, B. J. R.; URQUIAGA, S.; BODDEY, R. M. Forage legume presence and grazing intensity effect on nitrogen dynamics in brachiaria pastures in the South of Bahia, Brazil In: INTERNATIONAL GRASSLAND CONGRESS PROCEEDINGS, 24; INTERNATIONAL RANGELAND CONGRESS, 11, 2021 kentucky. Sustainable Use of Grassland and Rangeland Resources for Improved Livelihoods: proceeding...kentucky: University of kentucky, 2022.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Agrobiologia. |
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| 10. | | TARRE, R.; MACEDO, R.; CANTARUTTI, R. B.; REZENDE, C. D.; PEREIRA, J. M.; FERREIRA, E.; ALVES, B. J. R.; URQUIAGA, S.; BODDEY, R. M. The effect of the presence of a forage legume on nitrogen and carbon levels in soils under Brachiaria pastures in the Atlantic forest region of the South of Bahia, Brazil. Plant and Soil, Dordrecht, v. 234, n .1, p. 15-26, 2001.| Biblioteca(s): Embrapa Agrobiologia. |
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| 12. | | MATOS, P. S.; SILVA, C. F. da; PEREIRA, M. G.; SILVA, E. M. R. da; TARRÉ, R. M.; FRANCO, A. L. C.; ZONTA, E. Short-term modifications of mycorrhizal fungi, glomalin and soil attributes in a tropical agroforestry. Acta Oecologica, v. 114, 103815, May 2022.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 2 |
| Biblioteca(s): Embrapa Agrobiologia. |
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| 13. | | BODDEY, R. M.; ALVES, B. J. R.; URQUIAGA, S.; FERREIRA, E.; MACEDO, R. O.; OLIVEIRA, O. C.; PEREIRA, J. M.; REZENDE, C. de P.; TARRÉ, R. M.; VILELA, L. Avaliação do impacto da introdução de leguminosas forrageiras na produção e sustentabilidade de pastagens de Brachiaria através de estudos do ciclo de N. Seropédica: EMBRAPA-CNPAB, 1998. 9 p. (EMBRAPA-CNPAB. Documentos, 67).| Biblioteca(s): Embrapa Agrobiologia. |
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| 14. | | CAMPOS, D. V. B. de; MACHADO, P. L. O. A.; PINHEIRO, E. F. M.; SANTOS, G. A.; TARRÉ, R.; MACEDO, R.; ALVES, B. J. R.; URQUIAGA, S.; BODDEY, R. M. Composição isotópica das frações da matéria orgânica do solo sob capim elefante e braquária após 2 e 4 anos da remoção da cobertura de floresta secundária no extremo sul da Bahia (BA). Seropédica: Embrapa Agrobiologia, 2006. 4 p. Trabalho apresentado na XXVII Reunião Brasileira de Fertilidade do Solo e Nutrição de Plantas, XI Reunião Brasileira sobre Micorrizas, IX Simpósio Brasileiro de Microbiologia do Solo; VI Reunião Brasileira de Biologia do Solo, Bonito/MS,...| Biblioteca(s): Embrapa Agrobiologia. |
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| 15. | | CAMPOS, D. V. B. de; MACHADO, P. L. O. de A.; PINHEIRO, E. F. M.; SANTOS, G. A.; TARRÉ, R.; MACEDO, R.; ALVES, B. J. R.; URQUIAGA, S.; BODDEY, R. M. Composição isotópica das frações da matéria orgânica do solo sob capim elefante e braquiária após 2 e 4 anos da remoção da cobertura de floresta secundária no extremo Sul da Bahia (BA). In: REUNIÃO BRASILEIRA DE FERTILIDADE DO SOLO E NUTRIÇÃO DE PLANTAS, 27.; REUNIÃO BRASILEIRA SOBRE MICORRIZAS, 11.; SIMPÓSIO BRASILEIRO DE MICROBIOLOGIA DO SOLO, 9.; REUNIÃO BRASILEIRA DE BIOLOGIA DO SOLO, 6., 2006, Bonito, MS. Fertbio 2006: a busca das raízes - anais. Dourados: Embrapa Agropecuária Oeste, 2006. 1 CD ROM.| Biblioteca(s): Embrapa Arroz e Feijão. |
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| 16. | | CANTARUTTI, R. B.; TARRE, R.; MACEDO, R.; CADISCH, G.; REZENDE, C. de P.; PEREIRA, J. M.; BRAGA, J. M.; GOMIDE, J. A.; FERREIRA, E.; ALVES, B. J. R.; URQUIAGA, S.; BODDEY, R. M. The effect of grazing intensity and the presence of a forage legume on nitrogen dynamics in Brachiaria pastures in the Atlantic forest region of the South of Bahia, Brazil. Nutrient Cycling in Agroecossytems, Netherlands, v. 64, p. 257-271, 2002.| Biblioteca(s): Embrapa Agrobiologia. |
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| 17. | | CAMPOS, D. V. B. de; MACHADO, P. L. O. A.; MADARI, B. E.; TARRÉ, R.; MACEDO, R.; PINHEIRO, E. F. M.; ALVES, B. J. R.; URQUIAGA, S.; BODDEY, R. M.; SANTOS, G. A. Fracionamento físico da matéria orgânica em argissolo sob capim elefante e braquiária após 2 e 4 anos da remoção da cobertura de floresta secundária no extremo sul da Bahia. In: CONGRESSO BRASILEIRO DE CIÊNCIA DO SOLO, 30., 2005, Recife. Solos: sustentabilidade e qualidade ambiental. Recife: Sociedade Brasileira de Ciência do Solo, 2005. 4 p. CD ROM.| Biblioteca(s): Embrapa Agrobiologia. |
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| 18. | | BODDEY, R. M.; MACEDO, R.; TARRÉ, R. M.; FERREIRA, E.; OLIVEIRA, O. C. de; REZENDE, C. de P.; CANTARUTTI, R. B.; PEREIRA, J. M.; ALVES, B. J. R.; URQUIAGA, S. Nitrogen cycling in Brachiaria pastures: the key to understanding the process of pasture decline. Agriculture Ecosystems & Environment, Amsterdam, v. 103, p. 389-403, 2004.| Biblioteca(s): Embrapa Agrobiologia. |
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| 19. | | CAMPOS, D. V. B. de; MACHADO, P. L. O. A.; PINHEIRO, E. F. M.; SANTOS, G. A.; TARRÉ, R.; MACEDO, R.; ALVES, B. J. R.; URQUIAGA, S.; BODDEY, R. M. Teores de carbono em frações da matéria orgânica do solo sob Brachiaria humidicola em monocultura e consorciada com Desmodium ovalifolium, em Itabela (BA). Seropédica: Embrapa Agrobiologia, 2006. 4 p. Trabalho apresentado na XVI reunião Brasileira de Manejo e Conservação do Solo e da Água, Aracaju/SE, 23 a 27 de julho de 2006.| Biblioteca(s): Embrapa Agrobiologia. |
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| 20. | | CAMPOS, D. V. B. de; MACHADO, P. L. O. A.; PINHEIRO, E. F. M.; SILVA, C. A.; TARRE, R.; MACEDO, R.; ALVES, B. J. R.; URQUIAGA, S.; BODDEY, R. M.; SANTOS G. A. Teores de carbono e nitrogênio em frações da matéria orgânica de solo sob pastagem de capim elefante (Pennisetum purpureum). In: ENCONTRO BRASILEIRO DE SUBSTÂNCIAS HÚMICAS, 4., 2001, Viçosa. Resumo de palestras e trabalhos apresentados. Viçosa: UFV, Departamento de Solos, 2001. p. 94-96| Biblioteca(s): Embrapa Solos. |
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| Registros recuperados : 21 | |
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| Nenhum registro encontrado para a expressão de busca informada. |
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