Interactions at the Soil Colloid Gisela By combining measurements made from

By combining measurements made from hydrologic instruments with geophysical methods

initiatives to increase market share

namely: time varying parametric modeling

MACINTOSH MARY OSTLERE University of Oxford

Interactions at the Soil Colloid Gisela By combining measurements made fromAbout 20 years ago the emphasis in soil chemistry research switched from studies of problems related to scarcities of plant nutrients to those arising from soil pollutants. The new problems have come about because of the excessive uses of fertilizers, the inputs from farm and industrial wastes, the widespread applications of anthropogenie xenobiotic chemicals, and the deterioration of soil structure resulting from certain modern agriculture practises.