Resumen de Potasio asimilable y mineralogía de arcillas en fluvisoles calcáricos del Sector Meridional de la Vega Alta del Segura (Murcia)

Purificación Linares Moreno, Purificación Marín Sanleandro, L.J. Alías

• Available potassium content and clay mineralogical composition of calcaric fluvisols from a part of the Segura flooding plain (SE. Spain) are studied. Soils are low in available potassium and illite is their main clay component. There is a good correlation (p < 0.001) available potassium-illite content for the C horizons, while the long-continued anthropic practices seem to affect seriously soil potassium dynamics, in the Ap horizons.