Formas de potássio e estabelecimento de nível crítico para alguns solos do estado de Minas Gerais
II: Potencial de potássio e potássio trocável
Palavras-chave:
potássio trocável, potencial de potássio, crescimento vegetal, solos minerais, disponibilidade de potássioResumo
This is the second in a series of papers dealing with the forms of potassium in selected soils from the State of Minas Gerais, Brazil. The objetives was to study the potential and exchangeable forms of potassium and their relationship to available potassium and relative growth. In this study, the potential and exchangeable potassium were extracted using a 0.01 M calcium chloride solution and a 1 N (ph 7) ammonium acetate solution.
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