ABSTRACT
The soil solution plays a dominant role in the uptake of nutrients by plants, has direct impacts
on other soil-living organisms, and under certain conditions it is the vector for the migration
of dissolved and suspended materials through soils. We are defining the soil solution as the
liquid phase of the soil present in the field. This definition precludes all methods in which
salt solutions, or water, are added to a soil sample in the laboratory to simulate soil solutions
as these procedures may be more accurately defined as soil extractions.