Relaciones Q/I de potasio en suelos de la Isla de Tenerife (IV)

Abstract

Potassium labile pool of three soil groups of Tenerife Island in measured by succesive reductions in the activity ratio ($K/$bCa + Mg) of the equilibrium solution. There is no marked difference in potassium labile pools between the three soil types. Exchangeable potassium values (NH4Ac) are always higher than potassium labile pools in the group of Andosols. In this group, the intesity values, (ARK$), are highh compared with the potassium labile pools.