Data/hora: 05/06/2024 05:23:06

Biblioteca(s): 	Embrapa Soja.	
Data corrente: 	14/07/1992	
Data da última atualização: 	14/07/1992	
Autoria: 	IGUE, K.; FUENTES, R.	
Afiliação: 	IICA, Turrialba.	
Título: 	Retencion y solubilizacion de 32P en suelos acidos de regiones tropicales.	
Ano de publicação: 	1971	
Fonte/Imprenta: 	Turrialba, v.24, n.4, p.429-434, 1971.	
Idioma: 	Espanhol	
Conteúdo: 	The solubility of P retained by two acid soils of tropical regions was studied. Total amount of P retained from a solution of 100 ppm of P was higher for Cervantes soil (Vitrandept) as compared to Colorado soil (Distropept). Fractionation studies indicated the predominance of Al-P in both soils, but there was predominance of Ca-P over Fe-P in the case of Cervantes. Desorption carried out with different extractants indicated that Cervantes released more P in Bray and Mehlich extracts as compared to Colorado soil. In the case of NH4Cl and resin more P was released from Colorado soil than from Cervantes. In the case of an andosol such as Cervantes the dissolution of amorphous materials by acid extractants brigs together a higher dissolution of P. Fractionation ofP after successive desorption indicated differential dissolution of different P fractions retained initially by the soil. - The authors.	
Palavras-Chave: 	Regiao tropical; Torrid zone.	
Thesagro: 	Acidez; Solo Ácido.	
Thesaurus Nal: 	acid soils; tropical soils.	
Categoria do assunto: 	--	
Registro original: 	Embrapa Soja (CNPSO)	
Exemplares: 	CNPSO - (13834-1) - ADD - SP - -- - 9606 -  - 9606 - DIS