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Registro Completo |
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Biblioteca(s): |
Embrapa Gado de Corte. |
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Data corrente: |
11/01/2000 |
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Data da última atualização: |
15/01/2014 |
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Autoria: |
CARVALHO, M. M. de. |
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Título: |
A comparative study of the responses of six stylosanthes species toacid soil factors with particular reference to aluminium. |
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Ano de publicação: |
1978 |
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Fonte/Imprenta: |
Queensland: University of Queensland, 1978. |
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Páginas: |
298p. |
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Idioma: |
Português |
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Notas: |
Tese Doutorado. |
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Conteúdo: |
The present investigation was conducted to examine the comparative ability of six Stylosanthes species to tolerate acid soil infertility factors with particular reference to aluminium. Initially, a pot experiment was conducted to identify those factors limiting the growth of Stylosanthes in three acid soils from south east Queensland. All six species responded positively to lime application in the three soils, while responses to phosphate application varied with soils, species and lime rates. Lowest dry matter yield in the unlimed soils was associated with solution aluminium concentration in the saturation extract ranging from 37 to 55 uM. Maximum growth of all species occurred when the solution aluminium concentrations were reduced to the range 17 to 22 uM by the highest lime rates, which reduced the aluminium saturation of the effective CEC to less than 5 percent in all three soils. The growth response to lime was attributed to the alleviation of alluminium toxicity. Subsequent experiments conducted using sand culture that aluminium could restrict the growth of Stylosanthes species both through effects on host plant growth and on the development of an effective legume - Rhizobium symbiosis. However, plant growth was shown to be considerably more tolerant to aluminium toxicity when supplied with adequate combined nitrogen than when dependent on symbiotic nitrogen fixation. The greater sensitivity to aluminium toxicity of plants dependent on symbiotic nitrogen fixation was shown to be due to the greater... MenosThe present investigation was conducted to examine the comparative ability of six Stylosanthes species to tolerate acid soil infertility factors with particular reference to aluminium. Initially, a pot experiment was conducted to identify those factors limiting the growth of Stylosanthes in three acid soils from south east Queensland. All six species responded positively to lime application in the three soils, while responses to phosphate application varied with soils, species and lime rates. Lowest dry matter yield in the unlimed soils was associated with solution aluminium concentration in the saturation extract ranging from 37 to 55 uM. Maximum growth of all species occurred when the solution aluminium concentrations were reduced to the range 17 to 22 uM by the highest lime rates, which reduced the aluminium saturation of the effective CEC to less than 5 percent in all three soils. The growth response to lime was attributed to the alleviation of alluminium toxicity. Subsequent experiments conducted using sand culture that aluminium could restrict the growth of Stylosanthes species both through effects on host plant growth and on the development of an effective legume - Rhizobium symbiosis. However, plant growth was shown to be considerably more tolerant to aluminium toxicity when supplied with adequate combined nitrogen than when dependent on symbiotic nitrogen fixation. The greater sensitivity to aluminium toxicity of plants dependent on symbiotic nitrogen fixation was s... Mostrar Tudo |
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Palavras-Chave: |
Aluminium; Fertilizacao; Fertilization. |
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Thesagro: |
Agronomia; Solo. |
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Thesaurus Nal: |
agronomy; soil; Stylosanthes. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02166nam a2200229 a 4500
001 1322209
005 2014-01-15
008 1978 bl uuuu m 00u1 u #d
100 1 $aCARVALHO, M. M. de
245 $aA comparative study of the responses of six stylosanthes species toacid soil factors with particular reference to aluminium.
260 $aQueensland: University of Queensland$c1978
300 $a298p.
500 $aTese Doutorado.
520 $aThe present investigation was conducted to examine the comparative ability of six Stylosanthes species to tolerate acid soil infertility factors with particular reference to aluminium. Initially, a pot experiment was conducted to identify those factors limiting the growth of Stylosanthes in three acid soils from south east Queensland. All six species responded positively to lime application in the three soils, while responses to phosphate application varied with soils, species and lime rates. Lowest dry matter yield in the unlimed soils was associated with solution aluminium concentration in the saturation extract ranging from 37 to 55 uM. Maximum growth of all species occurred when the solution aluminium concentrations were reduced to the range 17 to 22 uM by the highest lime rates, which reduced the aluminium saturation of the effective CEC to less than 5 percent in all three soils. The growth response to lime was attributed to the alleviation of alluminium toxicity. Subsequent experiments conducted using sand culture that aluminium could restrict the growth of Stylosanthes species both through effects on host plant growth and on the development of an effective legume - Rhizobium symbiosis. However, plant growth was shown to be considerably more tolerant to aluminium toxicity when supplied with adequate combined nitrogen than when dependent on symbiotic nitrogen fixation. The greater sensitivity to aluminium toxicity of plants dependent on symbiotic nitrogen fixation was shown to be due to the greater...
650 $aagronomy
650 $asoil
650 $aStylosanthes
650 $aAgronomia
650 $aSolo
653 $aAluminium
653 $aFertilizacao
653 $aFertilization
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Registro original: |
Embrapa Gado de Corte (CNPGC) |
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Registro Completo
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Biblioteca(s): |
Embrapa Gado de Leite. |
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Data corrente: |
14/02/2013 |
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Data da última atualização: |
18/03/2024 |
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Tipo da produção científica: |
Artigo em Anais de Congresso |
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Autoria: |
PEREIRA, L. G. R.; MOREIRA, E. DE A.; REIS, L. G.; NEVES, A. L. A.; SANTOS, R. D. dos; TABOSA, J. N.; RODRIGUES, J. A. S.; MACHADO, F. S.; OLIVEIRA, B. S.; CAMPOS, M. M.; MOREIRA, T. S. |
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Afiliação: |
LUIZ GUSTAVO RIBEIRO PEREIRA, CNPGL; ELLEN DE A. MOREIRA, UFJF; LARISSA GOMES REIS, UFJF; ANDRE LUIS ALVES NEVES, CNPGL; RAFAEL DANTAS DOS SANTOS, CPATSA; JOSE NILDO TABOSA, EPEPA; JOSE AVELINO SANTOS RODRIGUES, CNPMS; FERNANDA SAMARINI MACHADO, CNPGL; BRENA S. OLIVEIRA, UFSC; MARIANA MAGALHAES CAMPOS, CNPGL; TAINÁ SILVESTRE MOREIRA, DTI/JF. |
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Título: |
Produtividade, caracteristicas agronomicas de cinco genótipos de sorgo. |
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Ano de publicação: |
2012 |
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Fonte/Imprenta: |
In: CONGRESSO NACIONAL DE MILHO E SORGO, 29., 2012, Águas de Lindóia. Diversidade e inovação na era dos transgênicos: resumos expandidos. Campinas: Instituto Agronômico; Sete Lagoas: Associação Brasileira de Milho e Sorgo, 2012. |
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Idioma: |
Português |
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Palavras-Chave: |
Semi-arido. |
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Thesagro: |
Forragem; Nutrição; Ruminante; Silagem. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/949277/1/Produtividade-caracteristicas-agronomicas-de-cinco-genotipos-de-sorgo.pdf
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Marc: |
LEADER 00967nam a2200277 a 4500
001 1949277
005 2024-03-18
008 2012 bl uuuu u00u1 u #d
100 1 $aPEREIRA, L. G. R.
245 $aProdutividade, caracteristicas agronomicas de cinco genótipos de sorgo.$h[electronic resource]
260 $aIn: CONGRESSO NACIONAL DE MILHO E SORGO, 29., 2012, Águas de Lindóia. Diversidade e inovação na era dos transgênicos: resumos expandidos. Campinas: Instituto Agronômico; Sete Lagoas: Associação Brasileira de Milho e Sorgo$c2012
650 $aForragem
650 $aNutrição
650 $aRuminante
650 $aSilagem
653 $aSemi-arido
700 1 $aMOREIRA, E. DE A.
700 1 $aREIS, L. G.
700 1 $aNEVES, A. L. A.
700 1 $aSANTOS, R. D. dos
700 1 $aTABOSA, J. N.
700 1 $aRODRIGUES, J. A. S.
700 1 $aMACHADO, F. S.
700 1 $aOLIVEIRA, B. S.
700 1 $aCAMPOS, M. M.
700 1 $aMOREIRA, T. S.
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