Formas de potássio e estabelecimento de nível crítico para alguns solos do estado de Minas Gerais
III - Potássio não trocável
Palavras-chave:
potássio não trocável, ácido sulfúrico, nível crítico, crescimento vegetal, potássio disponívelResumo
The objective of this study was to obtain data regarding the non-exchangeable form of potassium and to study the relationships between this data and the potential, exchangea- ble and available forms of potassium. The critical levels for the various extractants was also determined. Twenty different soils were used for the study consistin, of nine red-yellow podzolic, six dark red latosols, four Ted-yellow latosols and one hydromorfic.
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