Data/hora: 25/05/2024 09:39:50

Biblioteca(s): 	Embrapa Instrumentação; Embrapa Semiárido.	
Data corrente: 	22/12/1999	
Data da última atualização: 	31/07/2009	
Autoria: 	MACCARTHY, P.; CLAPP, C. E.; MALCOLM, R. L.; BLOOM, P. R. (ed.).	
Afiliação: 	Colorado School of Mines; USAD-ARS, University of Minnesota; U.S. Geological Survey, Water Resources Division; University of Minnesota.	
Título: 	Humic substances in soil and crop sciences: selected readings.	
Ano de publicação: 	1990	
Fonte/Imprenta: 	Madison: American Society of Agronomy, 1990.	
Páginas: 	281 p.	
ISBN: 	0-89118-104-0	
Idioma: 	Inglês	
Notas: 	Proceedings of a Symposium cosponsored by the International Humic Substances Society, Chicago, Illinois, 2 December 1985.	
Conteúdo: 	Conversion factors for SI and non-SI units; An introduction to soil humic substances; Variations between humic substances isolated from soils, stream waters, and groundwaters as revealed by 13C-NMR spectroscopy; Synthesis and degradation of natural and synthetic humic material in soil; Selected methods for the characterization of soil humic substances; Nitrogen in humic substances as related to soil fertility; Roles of organic matter, minerals, and moisture in sorption of nonionic compounds and pesticides by soil; Effects of humic substances on plant growth; Ecological aspects of soil organic matter in tropical land use; Humic and fulvic acid fractions from sewage sludges and sludge-amended soils; Application of nuclear magnetic resonance spectroscopy to whole soils; Humic substances in soil and crop sciences: an overview.	
Palavras-Chave: 	Acido humico; Congresses; Congresso; Cultura; Eventos; Proceedings.	
Thesagro: 	Húmus; Matéria Orgânica; Planta; Solo.	
Thesaurus Nal: 	crops; soil.	
Categoria do assunto: 	--	
Registro original: 	Embrapa Instrumentação (CNPDIA)	
Exemplares: 	CNPDIA - (4926-1) - ADD - PC - -- - 631.417 - M123h - 1993.00120 - DIS
CPATSA - (25249-1) - ADD - PC - PP - 631.417 - M123h - 2002.00260 - DIS