Presenter Information

S Suzuki, Kobe University

Publication Date

1997

Description

The objective of this study was to clarify that the root exudates of Italian ryegrass (Lolium multiflorum Lam.) expand the basal spacing of hydroxy potassium vermiculite (K-Vt) in the rhizosphere model with a clay-agar system, and to discuss that the action of the root exudates is regarded as a biosignal to release potassium ions from the interlayers of vermiculite clays.

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Potassium Release from Clays by Biosignal of Grass Root Exudates

The objective of this study was to clarify that the root exudates of Italian ryegrass (Lolium multiflorum Lam.) expand the basal spacing of hydroxy potassium vermiculite (K-Vt) in the rhizosphere model with a clay-agar system, and to discuss that the action of the root exudates is regarded as a biosignal to release potassium ions from the interlayers of vermiculite clays.