Data/hora: 08/06/2024 03:40:41

Biblioteca(s): 	Embrapa Instrumentação.	
Data corrente: 	27/01/2006	
Data da última atualização: 	27/01/2006	
Autoria: 	ROSA, A. H.; SIMÕES, M. L.; OLIVEIRA, L. C. de; ROCHA, J. C.; MARTIN NETO, L.; MILORI, D. M. B. P.	
Título: 	Multimethod study of the degree of humidification of humic substances extrated from different tropical soil profiles in Brazil's Amazonian region.	
Ano de publicação: 	0	
Fonte/Imprenta: 	Geoderma: an international journal of soil science, Amsterdam, v. 127, n. 1-2, p. 1-10, July 2005. Disponível em: http://elsevier.com/locate/geoderma. Acesso em: 09 jan. 2006.	
Idioma: 	Inglês	
Conteúdo: 	This work consisted of determining the degree of humification of humic substances (HS) extracted from six different Amazonian soils collected from flooded and unflooded regions at different depths (0-10, 10-20, 20-40, and 60 cm). The humic substances were extracted according to procedures recommended by the International Humic Substances Society and characterized using elemental analysis, electron paramagnetic resonance (EPR), and fluorescence spectroscopy.	
Palavras-Chave: 	Amazonian region; Elemental analysis; Fluorescence spectroscopy; Semiquinone-type free radicals; Soils.	
Thesaurus Nal: 	humic substances.	
Categoria do assunto: 	--	
Registro original: 	Embrapa Instrumentação (CNPDIA)	
Exemplares: 	CNPDIA - (9343-1) - UPC - SP - -- - PROCI-05.00095 -  - 2005.00095 - DIS