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Registro Completo |
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Biblioteca(s): |
Embrapa Pecuária Sudeste. |
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Data corrente: |
09/11/1995 |
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Data da última atualização: |
28/06/2023 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Autoria: |
FREITAS, A. R. de; GUIDONI, A. L. |
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Afiliação: |
ALFREDO RIBEIRO DE FREITAS, CPPSE; ANTONIO LOURENCO GUIDONI, CPACT. |
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Título: |
O efeito do desbalanceamento de sexo na parcela em experimento com aves. |
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Ano de publicação: |
1986 |
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Fonte/Imprenta: |
In: REUNIÃO ANUAL DA SOCIEDADE BRASILEIRA DE ZOOTECNIA, 23., 1986, Campo Grande. Anais... Campo Grande: SBZ, 1986. |
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Páginas: |
p. 422. |
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Idioma: |
Português |
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Palavras-Chave: |
Ave; Desbalanceamento de sexo. |
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Thesagro: |
Abate; Idade. |
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Thesaurus Nal: |
age. |
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Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/42485/1/OK-EfeitoDesbalanceamentoSexo.pdf
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Marc: |
LEADER 00579nam a2200181 a 4500
001 1042485
005 2023-06-28
008 1986 bl uuuu u00u1 u #d
100 1 $aFREITAS, A. R. de
245 $aO efeito do desbalanceamento de sexo na parcela em experimento com aves.$h[electronic resource]
260 $aIn: REUNIÃO ANUAL DA SOCIEDADE BRASILEIRA DE ZOOTECNIA, 23., 1986, Campo Grande. Anais... Campo Grande: SBZ$c1986
300 $ap. 422.
650 $aage
650 $aAbate
650 $aIdade
653 $aAve
653 $aDesbalanceamento de sexo
700 1 $aGUIDONI, A. L.
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Registro original: |
Embrapa Pecuária Sudeste (CPPSE) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Cerrados. Para informações adicionais entre em contato com cpac.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Cerrados; Embrapa Soja. |
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Data corrente: |
03/05/2001 |
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Data da última atualização: |
24/04/2024 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
Internacional - A |
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Autoria: |
VARGAS, M. A. T.; MENDES, I. de C.; HUNGRIA, M. |
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Afiliação: |
MILTON ALEXANDRE TEIXEIRA VARGAS, BIOAGRI; IEDA DE CARVALHO MENDES, CPAC; MARIANGELA HUNGRIA DA CUNHA, CNPSO. |
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Título: |
Response of field-grown bean (Phaseolus vulgaris L.) to Rhizobium inoculation and nitrogen fertilization in two Cerrados soils. |
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Ano de publicação: |
2000 |
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Fonte/Imprenta: |
Biology and Fertility of Soils, Heidelberger, v. 32, p. 228-233, 2000. |
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ISSN: |
0178-2762 |
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Idioma: |
Inglês |
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Conteúdo: |
Most soils sown with field beans (Phaseolus vulgares L.) contain indigenous rhizobia which might interfere with the establishment of inoculated strains. As a consequence, the benefits of bean inoculation are usually questioned, and the use of N fertilizer is gradually becoming a common practice. The present study had the objective of evaluating the effectiveness of inoculation and N fertilization in field soil with (site 1) and without (site 2) a previous bean-cropping history. At site 1, which had a rhizobial population of 7x10 (2 elevado ao quadrado) cells g (-1) soil, inoculation had no effect on nodulation or yield, whereas at site 2 (<10 cells g (-1) soil) inoculation incresead nodulation, nodule occupancy by the inoculated strain and grain yield. N fertilizer decreased nodulation at both sites, but increased grain yield at site 1 but not at site 2, indicating that the response to inoculation and N fertilization depends on the cropping history. When bean was cultivated for the first time, indigenous populations of rhizobia were low and high yields were accomplished solely with seed inoculation, with no further response to N fertilizer. In contrast, previous cultivation of bean increases soil rhizobia, preventing nodule formation by inoculated strains, and N fertilizer may be necessary for maximum yields. A significant interaction effect between N fertilizer and inoculation was detected for serogroup distribution only at site 2, with N fertilizer decreasing nodule occupancy by the inoculated strain and increasing the occurence of indigenous strains. Consequently, although no benefits were obtained by the combination of inoculation and N fertilizer, this practice may be feasible with the selection of appropriate N-tolerant strains from the indigenous rhizobial population. MenosMost soils sown with field beans (Phaseolus vulgares L.) contain indigenous rhizobia which might interfere with the establishment of inoculated strains. As a consequence, the benefits of bean inoculation are usually questioned, and the use of N fertilizer is gradually becoming a common practice. The present study had the objective of evaluating the effectiveness of inoculation and N fertilization in field soil with (site 1) and without (site 2) a previous bean-cropping history. At site 1, which had a rhizobial population of 7x10 (2 elevado ao quadrado) cells g (-1) soil, inoculation had no effect on nodulation or yield, whereas at site 2 (<10 cells g (-1) soil) inoculation incresead nodulation, nodule occupancy by the inoculated strain and grain yield. N fertilizer decreased nodulation at both sites, but increased grain yield at site 1 but not at site 2, indicating that the response to inoculation and N fertilization depends on the cropping history. When bean was cultivated for the first time, indigenous populations of rhizobia were low and high yields were accomplished solely with seed inoculation, with no further response to N fertilizer. In contrast, previous cultivation of bean increases soil rhizobia, preventing nodule formation by inoculated strains, and N fertilizer may be necessary for maximum yields. A significant interaction effect between N fertilizer and inoculation was detected for serogroup distribution only at site 2, with N fertilizer decreasing nodule occupa... Mostrar Tudo |
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Palavras-Chave: |
Bean; Nitrogen fertilizer. |
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Thesagro: |
Cerrado; Feijão; Fertilizante Nitrogenado; Inoculação; Phaseolus Vulgaris; Rhizobium; Solo. |
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Thesaurus NAL: |
inoculation methods; soil. |
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Categoria do assunto: |
--
X Pesquisa, Tecnologia e Engenharia |
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Marc: |
LEADER 02655naa a2200289 a 4500
001 1546798
005 2024-04-24
008 2000 bl uuuu u00u1 u #d
022 $a0178-2762
100 1 $aVARGAS, M. A. T.
245 $aResponse of field-grown bean (Phaseolus vulgaris L.) to Rhizobium inoculation and nitrogen fertilization in two Cerrados soils.$h[electronic resource]
260 $c2000
520 $aMost soils sown with field beans (Phaseolus vulgares L.) contain indigenous rhizobia which might interfere with the establishment of inoculated strains. As a consequence, the benefits of bean inoculation are usually questioned, and the use of N fertilizer is gradually becoming a common practice. The present study had the objective of evaluating the effectiveness of inoculation and N fertilization in field soil with (site 1) and without (site 2) a previous bean-cropping history. At site 1, which had a rhizobial population of 7x10 (2 elevado ao quadrado) cells g (-1) soil, inoculation had no effect on nodulation or yield, whereas at site 2 (<10 cells g (-1) soil) inoculation incresead nodulation, nodule occupancy by the inoculated strain and grain yield. N fertilizer decreased nodulation at both sites, but increased grain yield at site 1 but not at site 2, indicating that the response to inoculation and N fertilization depends on the cropping history. When bean was cultivated for the first time, indigenous populations of rhizobia were low and high yields were accomplished solely with seed inoculation, with no further response to N fertilizer. In contrast, previous cultivation of bean increases soil rhizobia, preventing nodule formation by inoculated strains, and N fertilizer may be necessary for maximum yields. A significant interaction effect between N fertilizer and inoculation was detected for serogroup distribution only at site 2, with N fertilizer decreasing nodule occupancy by the inoculated strain and increasing the occurence of indigenous strains. Consequently, although no benefits were obtained by the combination of inoculation and N fertilizer, this practice may be feasible with the selection of appropriate N-tolerant strains from the indigenous rhizobial population.
650 $ainoculation methods
650 $asoil
650 $aCerrado
650 $aFeijão
650 $aFertilizante Nitrogenado
650 $aInoculação
650 $aPhaseolus Vulgaris
650 $aRhizobium
650 $aSolo
653 $aBean
653 $aNitrogen fertilizer
700 1 $aMENDES, I. de C.
700 1 $aHUNGRIA, M.
773 $tBiology and Fertility of Soils, Heidelberger$gv. 32, p. 228-233, 2000.
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