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	Provedor de dados R.C. Suelo Nutr. Veg. (1) Autor Jara,Alejandra A (1) Mora,María de la Luz (1) Pigna,Massimo (1) Violante,Antonio (1) Palavra-chave Adsorption (1) Andisol (1) Malate (1) Mineralogical composition (1) Phosphate (1) Sulfate (1) Mais... Tipo do documento Journal article (1) Ano 2007 (1) País Chile (1) Idioma Inglês (1)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 1 Primeira ... 1 ... Última Effect Of pH, Phosphate and/or Malate on Sulfate Sorption on Andisols R.C. Suelo Nutr. Veg. Pigna,Massimo; Jara,Alejandra A; Mora,María de la Luz; Violante,Antonio. The sulfate sorption was studied on Andisols with variable mineralogical composition and low organic matter content in presence and absence of phosphate or malate ligands at different pH. Crystalline clay mineralogy was similar for all the studied samples, except for the 2C horizon of the pedon 2, which did not show crystalline minerals. The soil samples showed content of allophane ranging from 16% to 42%. The sulfate adsorption decreased when descending the first 3 horizons (A1, 2A2 and 3Bw1) of the pedon 1. This behavior was attributed to the decreasing organic carbon content. At different pH sulfate sorption was drastically decreased by increasing the pH from 4.0 to 7.0, precisely by 80% for sample 5 to 100% for sample 1. Experiments on the competitive... Tipo: Journal article Palavras-chave: Sulfate; Adsorption; Andisol; Mineralogical composition; Phosphate; Malate. Ano: 2007 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-27912007000100005 Registros recuperados: 1 Primeira ... 1 ... Última

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