Data/hora: 03/06/2024 17:53:59

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: | --
Registro original: | Embrapa Cerrados (CPAC)
Exemplares: | CPAC - (1594-1) - UPC - SP - -- - CRI4854 -  - CRI4854 - DIS