Título:	Estimating nitrogen mineralization in a "cerrado" dark-red latosol by laboratory incubation, and the effect of soil sample disturbance.
Autoria:	KLAUSNER, S. D. SUHET, A. R. DUXBURY, J. M.
Afiliação:	ALLERT ROSA SUHET, CPAC.
Ano de publicação:	1990
Referência:	Pesquisa Agropecuária Brasileira, Brasília, v. 25, n. 4, p. 617-623, abr. 1990.
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.
Thesagro:	Cerrado Mineralização Nitrogênio Solo Latossolo Vermelho Escuro
NAL Thesaurus:	Ferralsols mineralization nitrogen soil
Palavras-chave:	Dark-red latosol
Tipo do material:	Artigo de periódico
Acesso:	openAccess
Aparece nas coleções:	Artigo em periódico indexado (CPAC)