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Registro Completo |
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Biblioteca(s): |
Embrapa Pantanal. |
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Data corrente: |
24/04/1996 |
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Data da última atualização: |
24/04/1996 |
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Autoria: |
CHARYULU, P. B. B. N.; RAO, V. R. |
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Título: |
Influence of various soil factors on nitrogen fixation by Azospirillum spp. |
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Ano de publicação: |
1980 |
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Fonte/Imprenta: |
Soil Biology and Biochemistry, v.12, n.4, p.343-346, 1980. |
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Idioma: |
Inglês |
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Conteúdo: |
The influence of soil pH, redox potential and added organic matter on N2-fixation by Azos- pirillum was studied. Application of rice straw to alluvial, laterite and acid-sulphate Pokkali soils under submerged conditions enhanced the population of N2-fixing Azospirillum spp. An acid-sulphate saline soil of extremely low pH (3.2) harboured Azospirillum spp with ap- preciable N2-fixing activity Enrichment cultures originating from soils with low pH (<4.0) possessed lower N2-fixing activity compared to cultures from soils with higher pH values (upto 6.6) Azospirillum cultures from soils that had undergone waterlogging showed lower N2-fixing activity than cultures isolated from soils submerged for a few days. A relationship was shown between the in vitro N2-fixing activity of Azospirillum cultures and the redox status of the soil samples; activity was high when the soil redox potential was between -50 to -150 mV. The results show that the N2-fixing activity of Azospirillum cultuires is gover- ned by fluctuations in soil redox potential, pH and organic matter. |
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Palavras-Chave: |
Azospirillum spp. |
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Thesagro: |
Fixação de Nitrogênio; Fósforo; Matéria Orgânica; Solo. |
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Thesaurus Nal: |
nitrogen fixation; organic matter; phosphorus; soil. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01733naa a2200241 a 4500
001 1788264
005 1996-04-24
008 1980 bl --- 0-- u #d
100 1 $aCHARYULU, P. B. B. N.
245 $aInfluence of various soil factors on nitrogen fixation by Azospirillum spp.
260 $c1980
520 $aThe influence of soil pH, redox potential and added organic matter on N2-fixation by Azos- pirillum was studied. Application of rice straw to alluvial, laterite and acid-sulphate Pokkali soils under submerged conditions enhanced the population of N2-fixing Azospirillum spp. An acid-sulphate saline soil of extremely low pH (3.2) harboured Azospirillum spp with ap- preciable N2-fixing activity Enrichment cultures originating from soils with low pH (<4.0) possessed lower N2-fixing activity compared to cultures from soils with higher pH values (upto 6.6) Azospirillum cultures from soils that had undergone waterlogging showed lower N2-fixing activity than cultures isolated from soils submerged for a few days. A relationship was shown between the in vitro N2-fixing activity of Azospirillum cultures and the redox status of the soil samples; activity was high when the soil redox potential was between -50 to -150 mV. The results show that the N2-fixing activity of Azospirillum cultuires is gover- ned by fluctuations in soil redox potential, pH and organic matter.
650 $anitrogen fixation
650 $aorganic matter
650 $aphosphorus
650 $asoil
650 $aFixação de Nitrogênio
650 $aFósforo
650 $aMatéria Orgânica
650 $aSolo
653 $aAzospirillum spp
700 1 $aRAO, V. R.
773 $tSoil Biology and Biochemistry$gv.12, n.4, p.343-346, 1980.
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Registro original: |
Embrapa Pantanal (CPAP) |
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Registro Completo
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Biblioteca(s): |
Embrapa Pantanal. |
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Data corrente: |
19/02/2015 |
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Data da última atualização: |
02/04/2019 |
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Tipo da produção científica: |
Folder/Folheto/Cartilha |
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Autoria: |
SANTOS, S. A.; COMASTRI FILHO, J. A.; JULIANO, R. S.; CRISPIM, S. M. A. |
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Afiliação: |
SANDRA APARECIDA SANTOS, CPAP; JOSE ANIBAL COMASTRI FILHO, CPAP; RAQUEL SOARES JULIANO, CPAP; SANDRA MARA ARAUJO CRISPIM, CPAP. |
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Título: |
"Cara inchada" em cavalos no Pantanal - como resolver o problema? |
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Ano de publicação: |
2014 |
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Fonte/Imprenta: |
Corumbá: Embrapa Pantanal, 2014. |
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Páginas: |
2 p. |
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Idioma: |
Português |
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Notas: |
Folder. |
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Palavras-Chave: |
Equinos; Hiperparatireoidismo Nutricional Secundário; Osteodistrofia Fibrosa. |
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Thesagro: |
Doença; Oxalato. |
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Categoria do assunto: |
H Saúde e Patologia |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/118125/1/FOL180.pdf
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Marc: |
LEADER 00626nam a2200217 a 4500
001 2008935
005 2019-04-02
008 2014 bl uuuu u0uu1 u #d
100 1 $aSANTOS, S. A.
245 $a"Cara inchada" em cavalos no Pantanal - como resolver o problema?$h[electronic resource]
260 $aCorumbá: Embrapa Pantanal$c2014
300 $a2 p.
500 $aFolder.
650 $aDoença
650 $aOxalato
653 $aEquinos
653 $aHiperparatireoidismo Nutricional Secundário
653 $aOsteodistrofia Fibrosa
700 1 $aCOMASTRI FILHO, J. A.
700 1 $aJULIANO, R. S.
700 1 $aCRISPIM, S. M. A.
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