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| 181. |  | URQUIAGA, S.; ALVES, B. J. R.; JANTALIA, C. P.; SOARES, L. H. B.; BODDEY, R. M. Mudanças ambientais: seqüestro de carbono, gases de efeito estufa e educação ambiental. In: REUNIÃO BRASILEIRA DE MANEJO E CONSERVAÇÃO DO SOLO E DA ÁGUA, 17., 2008, Rio de Janeiro. Manejo e conservação do solo e da água no contexto das mudanças ambientais. Rio de Janeiro: SBCS: Embrapa Solos: Embrapa Agrobiologia, 2008. 6 p. 1 CD-ROM. (Embrapa Solos. Documentos, 101).| Biblioteca(s): Embrapa Agrobiologia. |
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| 183. | | SCHUNKE, R. M.; KIEHL, J. C.; PAULINO, V. T.; URQUIAGA, S.; BODDEY, R. M. Nitrogen dynamics from decomposing Lltter of Panicum maximum with diifferent nitrogen and phosphorus content in Brazilian alfissol. In: INTERNATIONAL GRASSLAND CONGRESS, 24., INTERNATIONAL RANGELAND CONGRESS, 11., 2020, Kenya. Sustainable use of grassland and rangeland resources for improved livelihoods. Proceedings... Kenya: Kenya Agricultural and Livestock Research Organization, 2021.| Biblioteca(s): Embrapa Agrobiologia. |
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| 184. | | INACIO, C. de T.; URQUIAGA, S.; CHALK, P. M.; MATA, M. G. F.; SOUZA, P. O. Nitrogen isotopic composition of n-sources, vegetables and soil from two organic farming systems. In: NITROGEN WORKSHOP: THE NITROGEN CHALLENGE: BUILDING A BLUEPRINT FOR NITROGEN USE EFFICIENCY AND FOOD SECURITY, 18., 2014, Lisboa. Resumo... Lisboa: Instituto Superior de Agronomia, CEER: Biosystens Engineering; Évora: Nacional de Ivestigação Agrícola e Veterinária; Viena: International Nitrogen Initiative, 2014.| Biblioteca(s): Embrapa Solos. |
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| 185. | | INACIO, C. T.; URQUIAGA, S.; CHALK, P. M.; ALVES, B. J. R. Nitrogen loss (NH3, N2O) patterns in bench-scale composting. In: SIMPÓSIO INTERNACIONAL SOBRE GERENCIAMENTO DE RESÍDUOS AGROPECUÁRIOS E AGROINDUSTRIAIS, 4., 2015, Rio de Janeiro. Anais... Brasília, DF: Embrapa, 2015.| Biblioteca(s): Embrapa Solos. |
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| 188. | | FERREIRA, E.; SCHOFIELD, H.; URQUIAGA, S.; ALVES, B. J. R.; BODDEY, R. M. Perdas potenciais de nitrogênio através das fezes e da urina do gado bovino no Brasil. Revista Científica do Centro Universitário de Barra Mansa - UBM, Barra Mansa, v. 4, n. 8, p. 4-15, 2002.| Biblioteca(s): Embrapa Agrobiologia. |
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| 190. | | MATOS, T. S.; NASCIMENTO, E. C.; JANTALIA, C. P.; ALVES, B.; URQUIAGA, S. Produção de massa seca e acúmulo de N total em brachiaria decumbens pela aplicação de ureia comercial e granulada com arenito zeolítico com e sem aplicação de calagem. In: CONGRESSO BRASILEIRO DE CIÊNCIA DO SOLO, 33., 2011, Uberlândia. Solos nos biomas brasileiros: sustentabilidade e mudanças climáticas: anais. [Uberlândia]: SBCS: UFU, ICIAG, 2011.| Biblioteca(s): Embrapa Agrobiologia. |
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| 191. | | MATOS, T. S.; NASCIMENTO, E. C.; URQUIAGA, S.; ALVES, B.; JANTALIA, C. P. Produção de massa seca e acúmulo de N total em brachiaria decumberns pela a aplicação de ureia comercial e granulada com arenito zeolítico com e sem aplicação de calagem. In: CONGRESSO BRASILEIRO DE CIÊNCIA DO SOLO, 33., 2011, Uberlândia. Solos nos biomas brasileiros: sustentabilidade e mudanças climáticas: anais. [Uberlândia]: SBCS: UFU, ICIAG, 2011.| Biblioteca(s): Embrapa Agrobiologia. |
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| 192. | | LENGRUBER, J. A.; JANTALIA, C. P.; URQUIAGA, S.; BODDEY, R. M.; ALVES, B. J. R. Produção de óxido nitroso derivado da urina bovina em pastagem de braquiária. 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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| 193. | | PERIN, A.; SANTOS, R. H. S.; URQUIAGA, S.; GUERRA, J. G. M.; CECON, P. R. Produção de fitomassa, acúmulo de nutrientes e fixação biológica de nitrogênio por adubos verdes em cultivo isolado e consorciado. Pesquisa Agropecuária Brasileira, Brasília, DF, v. 39, n. 1, p. 35-40, jan. 2004 Título em inglês: Phytomass yield, nutrients accumulation and biological nitrogen fixation by single and associated green manures.| Biblioteca(s): Embrapa Unidades Centrais. |
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| 195. | | SILVA, J. A.; SCHULTZ, N.; ALVES, B. J. R.; BODDEY, R. M.; URQUIAGA, S. Potencial produtivo de cana-de-açúcar sem adubação nitrogenada em estudo de longo prazo. In: CONGRESSO BRASILEIRO DE CIÊNCIA DO SOLO, 33., 2011, Uberlândia. Solos nos biomas brasileiros: sustentabilidade e mudanças climáticas: anais. [Uberlândia]: SBCS: UFU, ICIAG, 2011.| Biblioteca(s): Embrapa Agrobiologia. |
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| 196. | | SILVA, J. A.; SCHULTZ, N.; URQUIAGA, S.; ALVES, B. J. R.; BODDEY, R. M. Potencial produtivo de cana-de-açúcar sem adubação nitrogenada em estudo de longo prazo. In: CONGRESSO BRASILEIRO DE CIÊNCIA DO SOLO, 33., 2011, Uberlândia. Solos nos biomas brasileiros: sustentabilidade e mudanças climáticas: anais. [Uberlândia]: SBCS: UFU, ICIAG, 2011.| Biblioteca(s): Embrapa Agrobiologia. |
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| 199. | | INACIO, C. de T.; MAGALHÃES, A. M. T.; SOUZA, P. O.; CHALK, P. M.; URQUIAGA, S. The relative isotopic abundance (delta13C, delta15N) during composting of agricultural wastes in relation to compost quality and feedstock. Isotopes in Environmental and Health Studies, v. 54, n. 2, p. 185-195, 2018.| Biblioteca(s): Embrapa Agrobiologia; Embrapa Solos. |
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| 200. | | ALVES, B. J. R.; TORRES, E.; URQUIAGA, S.; BODDEY, R. M.; ZOTARELLI, L. Resposta da cultura do milho a abudacao verde com tremoco, em sistema de rotacao de culturas sob plantio direto e convencional. In: CONGRESSO BRASILEIRO DE CIENCIA DO SOLO, 28., 2001, Londrina. Ciencia do solo: fator de produtividade e competitividade com sustentabilidade. Londrina: Sociedade Brasileira de Ciencia do Solo, 2001. p.255.| Biblioteca(s): Embrapa Soja. |
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Registro Completo
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Biblioteca(s): |
Embrapa Agrobiologia. |
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Data corrente: |
09/08/2004 |
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Data da última atualização: |
09/08/2004 |
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Autoria: |
OKITO, A.; ALVES, B. J. R.; URQUIAGA, S.; BODDEY, R. M. |
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Título: |
Isotopic fractionation during N2 fixation by four tropical legumes. |
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Ano de publicação: |
2004 |
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Fonte/Imprenta: |
Soil Biology & Biochemistry, Oxford, v. 36, p. 1179-1190, 2004. |
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Idioma: |
Inglês |
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Conteúdo: |
To quantify the contribution of biological nitrogen fixation (BNF) to legume crops using the 15N natural abundance, it is necessary to determine the 15N abundance of the N derived from BNF-the B value. In this study, we used a technique b where by both legume and non-N²-fixing reference plants were grown under the same conditions in two similar soil, one artificially labelled with 15N, and the other not. the proportion of n derived from BNF (% Ndfa) was determined from the plants grown in the 15N-labelled soil and it was assumed that the %Ndfa values of the legumes grow in the soil were the same, hence the B value of the legume could be calculated. The legume used were velvet neam (Mucuna pruriens), sunnhemp (Crotalaria juncea), groundnut (Arachis hypogaea) and (glycine max) inoculated, or not, with different strains of rhizobium. The values of % Ndfa were allover 89%, and all the legume grown in unlabelled soil showed negative alpha 15N values even though the plant-available n in this soil was found approximately + 6.0%. The B values for the shoot tissue (Bs) were calculated and ranged from approximately - 1.4% for inoculated sunnhemp and groudnut to - 2.4 and - 4.5% for soybeam inoculated with bradyhizobium japonicum strain CPAC 7 bradyhizobium alkanil 29W, rspectively. The B (Bwp) values for the whole plants roots, nodules and the original seed n were still significantly different detween the soybeam plants inoculated with CPAC 7 (- 1.33%) and 29W (- 2.25%). In a parallet experiment conducted in monoxenic culture using the soybeam variety and Bradyhizobium strain, the plants accumulated less N from BNF and the values were less negative, but still significantly different for soybean inoculated with the two different Bradyhizobium strains. The results suggest that the technique utilized in this study ti determine B with legume plants grown in soil in the poen air, yields B values that are more appropriate for use under field conditions. MenosTo quantify the contribution of biological nitrogen fixation (BNF) to legume crops using the 15N natural abundance, it is necessary to determine the 15N abundance of the N derived from BNF-the B value. In this study, we used a technique b where by both legume and non-N²-fixing reference plants were grown under the same conditions in two similar soil, one artificially labelled with 15N, and the other not. the proportion of n derived from BNF (% Ndfa) was determined from the plants grown in the 15N-labelled soil and it was assumed that the %Ndfa values of the legumes grow in the soil were the same, hence the B value of the legume could be calculated. The legume used were velvet neam (Mucuna pruriens), sunnhemp (Crotalaria juncea), groundnut (Arachis hypogaea) and (glycine max) inoculated, or not, with different strains of rhizobium. The values of % Ndfa were allover 89%, and all the legume grown in unlabelled soil showed negative alpha 15N values even though the plant-available n in this soil was found approximately + 6.0%. The B values for the shoot tissue (Bs) were calculated and ranged from approximately - 1.4% for inoculated sunnhemp and groudnut to - 2.4 and - 4.5% for soybeam inoculated with bradyhizobium japonicum strain CPAC 7 bradyhizobium alkanil 29W, rspectively. The B (Bwp) values for the whole plants roots, nodules and the original seed n were still significantly different detween the soybeam plants inoculated with CPAC 7 (- 1.33%) and 29W (- 2.25%). In a paralle... Mostrar Tudo |
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Palavras-Chave: |
Biological nitrogen fixation; BNF; FBN; Fixação biológica de nitrogênio; Groundnut. |
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Thesagro: |
Amendoim; Arachis Hypogaea; Crotalária Juncea; Glycine Max; Soja. |
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Thesaurus NAL: |
Mucuna pruriens; soybeans. |
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Categoria do assunto: |
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Marc: |
LEADER 02776naa a2200301 a 4500
001 1626283
005 2004-08-09
008 2004 bl --- 0-- u #d
100 1 $aOKITO, A.
245 $aIsotopic fractionation during N2 fixation by four tropical legumes.
260 $c2004
520 $aTo quantify the contribution of biological nitrogen fixation (BNF) to legume crops using the 15N natural abundance, it is necessary to determine the 15N abundance of the N derived from BNF-the B value. In this study, we used a technique b where by both legume and non-N²-fixing reference plants were grown under the same conditions in two similar soil, one artificially labelled with 15N, and the other not. the proportion of n derived from BNF (% Ndfa) was determined from the plants grown in the 15N-labelled soil and it was assumed that the %Ndfa values of the legumes grow in the soil were the same, hence the B value of the legume could be calculated. The legume used were velvet neam (Mucuna pruriens), sunnhemp (Crotalaria juncea), groundnut (Arachis hypogaea) and (glycine max) inoculated, or not, with different strains of rhizobium. The values of % Ndfa were allover 89%, and all the legume grown in unlabelled soil showed negative alpha 15N values even though the plant-available n in this soil was found approximately + 6.0%. The B values for the shoot tissue (Bs) were calculated and ranged from approximately - 1.4% for inoculated sunnhemp and groudnut to - 2.4 and - 4.5% for soybeam inoculated with bradyhizobium japonicum strain CPAC 7 bradyhizobium alkanil 29W, rspectively. The B (Bwp) values for the whole plants roots, nodules and the original seed n were still significantly different detween the soybeam plants inoculated with CPAC 7 (- 1.33%) and 29W (- 2.25%). In a parallet experiment conducted in monoxenic culture using the soybeam variety and Bradyhizobium strain, the plants accumulated less N from BNF and the values were less negative, but still significantly different for soybean inoculated with the two different Bradyhizobium strains. The results suggest that the technique utilized in this study ti determine B with legume plants grown in soil in the poen air, yields B values that are more appropriate for use under field conditions.
650 $aMucuna pruriens
650 $asoybeans
650 $aAmendoim
650 $aArachis Hypogaea
650 $aCrotalária Juncea
650 $aGlycine Max
650 $aSoja
653 $aBiological nitrogen fixation
653 $aBNF
653 $aFBN
653 $aFixação biológica de nitrogênio
653 $aGroundnut
700 1 $aALVES, B. J. R.
700 1 $aURQUIAGA, S.
700 1 $aBODDEY, R. M.
773 $tSoil Biology & Biochemistry, Oxford$gv. 36, p. 1179-1190, 2004.
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