Registro Completo |
Biblioteca(s): |
Embrapa Cerrados. |
Data corrente: |
12/01/1999 |
Data da última atualização: |
29/06/2007 |
Autoria: |
KLAUSNER, S. D.; SUHET, A. R.; DUXBURY, J. M. |
Título: |
Estimating nitrogen mineralization in a "cerrado" dark-red latosol by laboratory incubation, and the effect of soil sample disturbance. |
Ano de publicação: |
1990 |
Fonte/Imprenta: |
Pesquisa Agropecuaria Brasileira, Brasilia, v.25, n.4, p.617-623, 1990. |
Idioma: |
Inglês |
Conteúdo: |
Four dark-red latosols (Haplustox) were sampled at or near the "Centro de Pesquisa Agropecuaria dos Cerrados- CPAC - (Cerrados Agricultural Research Center), in Planaltina, DF, Brazil. A laboratory soil incubation study, at 35C and 0.25 bar water tension, was conducted to evaluate the effect of soil disturbance on N mineralization and to determine the suitability of an incubation procedure for estimating N mineralization in the field. Mineralization rates ranged from ranged 1,2 to 8,8 kg N ha wk over a twelve-week period. The data suggested that as long as is some degree soil aggregation, soil disturbance had no effect on mineralization. The amount of N mineralized during the incubation period in the laboratory showed a low a correlation with the N mineralization in the field. |
Palavras-Chave: |
Dark-red latosol; Latossolo vermelho-escruro. |
Thesagro: |
Cerrado; Mineralização; Nitrogênio; Solo. |
Thesaurus Nal: |
Ferralsols; mineralization; nitrogen; soil. |
Categoria do assunto: |
-- |
Marc: |
LEADER 01564naa a2200265 a 4500 001 1544509 005 2007-06-29 008 1990 bl --- 0-- u #d 100 1 $aKLAUSNER, S. D. 245 $aEstimating nitrogen mineralization in a "cerrado" dark-red latosol by laboratory incubation, and the effect of soil sample disturbance. 260 $c1990 520 $aFour dark-red latosols (Haplustox) were sampled at or near the "Centro de Pesquisa Agropecuaria dos Cerrados- CPAC - (Cerrados Agricultural Research Center), in Planaltina, DF, Brazil. A laboratory soil incubation study, at 35C and 0.25 bar water tension, was conducted to evaluate the effect of soil disturbance on N mineralization and to determine the suitability of an incubation procedure for estimating N mineralization in the field. Mineralization rates ranged from ranged 1,2 to 8,8 kg N ha wk over a twelve-week period. The data suggested that as long as is some degree soil aggregation, soil disturbance had no effect on mineralization. The amount of N mineralized during the incubation period in the laboratory showed a low a correlation with the N mineralization in the field. 650 $aFerralsols 650 $amineralization 650 $anitrogen 650 $asoil 650 $aCerrado 650 $aMineralização 650 $aNitrogênio 650 $aSolo 653 $aDark-red latosol 653 $aLatossolo vermelho-escruro 700 1 $aSUHET, A. R. 700 1 $aDUXBURY, J. M. 773 $tPesquisa Agropecuaria Brasileira, Brasilia$gv.25, n.4, p.617-623, 1990.
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Registro original: |
Embrapa Cerrados (CPAC) |
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