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Registro Completo |
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Biblioteca(s): |
Embrapa Pantanal. |
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Data corrente: |
03/02/1997 |
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Data da última atualização: |
03/04/2017 |
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Autoria: |
WEST, A. W.; ROSS, D. J.; COWLING, J. C. |
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Título: |
Changes in microbial C, N, P and ATP contents, numbers and respiration on storage of soil. |
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Ano de publicação: |
1986 |
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Fonte/Imprenta: |
Soil Biology and Biochesmitry, v.18, n.2, p.141-148, 1986. |
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Idioma: |
Inglês |
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Conteúdo: |
The effects of a 7-day incubation (at 25C and 50% of water-holding capacity, -0.001 MPa) of two soils, from under grazed pastures of high and low P status, on microbial C, N, P and ATP contents, numbers and respiration were investigated with samples collected in summer and winter. Incubation prior to analysis (i.e. storage or pre-incubation) resulted in a significant (P < 0.05) alteration in most of the properties measured; seasonal effects were often marked with the two soils generally behaving similarly. Microbial numbers and respiration increased during prior incubation of summer samples, but generally decreased in winter samples. Pre-incubation resulted in a decrease in biomass C, as estimated by the chloroform fumigation procedure, but an increase in ATP content. Changes in mineral-N flush and biomass P were smaller and less consistent. Many of the properties measured were still changing after 7 days incubation. |
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Palavras-Chave: |
Respiration. |
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Thesagro: |
Biomassa; Respiração; Solo. |
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Thesaurus Nal: |
biomass; soil. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01509naa a2200217 a 4500
001 1790449
005 2017-04-03
008 1986 bl --- 0-- u #d
100 1 $aWEST, A. W.
245 $aChanges in microbial C, N, P and ATP contents, numbers and respiration on storage of soil.
260 $c1986
520 $aThe effects of a 7-day incubation (at 25C and 50% of water-holding capacity, -0.001 MPa) of two soils, from under grazed pastures of high and low P status, on microbial C, N, P and ATP contents, numbers and respiration were investigated with samples collected in summer and winter. Incubation prior to analysis (i.e. storage or pre-incubation) resulted in a significant (P < 0.05) alteration in most of the properties measured; seasonal effects were often marked with the two soils generally behaving similarly. Microbial numbers and respiration increased during prior incubation of summer samples, but generally decreased in winter samples. Pre-incubation resulted in a decrease in biomass C, as estimated by the chloroform fumigation procedure, but an increase in ATP content. Changes in mineral-N flush and biomass P were smaller and less consistent. Many of the properties measured were still changing after 7 days incubation.
650 $abiomass
650 $asoil
650 $aBiomassa
650 $aRespiração
650 $aSolo
653 $aRespiration
700 1 $aROSS, D. J.
700 1 $aCOWLING, J. C.
773 $tSoil Biology and Biochesmitry$gv.18, n.2, p.141-148, 1986.
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Registro original: |
Embrapa Pantanal (CPAP) |
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