Resumo
Variable values of aluminum extracted with lN solutions of the reagent were observed. It was shown that the problem was related to some buffering of the solutions, probably due to presence of potassium carbonate, which precipitated aluminum. Acidifying and boiling of the solutions of potassium chloride minimized this problem.
NOTAS
Influência da origem do cloreto de potássio utilizado em extrações de amostras de solos, nos resultados de alumínio trocável1
Influence of the source of potassium chloride on values of extracted aluminum
H. Cantarella; A. R. Dechen2; B. Van Raij
Seção de Fertilidade do Solo, Instituto Agronômico, IAC
SUMMARY
Variable values of aluminum extracted with lN solutions of the reagent were observed. It was shown that the problem was related to some buffering of the solutions, probably due to presence of potassium carbonate, which precipitated aluminum. Acidifying and boiling of the solutions of potassium chloride minimized this problem.
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Recebido para publicação a 22 de agosto de 1980.
Referências bibliográficas
Datas de Publicação
-
Publicação nesta coleção
21 Dez 2007 -
Data do Fascículo
1981
Histórico
-
Recebido
22 Ago 1980