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Soil Preparation and Sampling Techniques for Studying Ion Movement¹

ABSTRACT

Techniques are described for preparing and sampling soil columns and undisturbed soil peds used for ion movement studies. These methods utilize a block of paraffin wax-petrolatum jelly mixture to hold soil peds or to provide a cylindrical cavity for a soil column. A microtome and holder apparatus capable of holding the wax blocks containing the soil is used for precision slicing at increments of 0.5 mm or more.

¹ Contribution from the Soils & Fertilizer Research Branch, Division of Agricultural Development, Tennessee Valley Authority, Muscle Shoals, Ala.

² Research Chemist (Soils) and Research Soil Scientist, respectively, Soils & Fertilizer Research Branch, Div. of Agr. Devel., TVA, Muscle Shoals, Ala. 35660.

Received for publication December 17, 1968. Accepted for publication February 10, 1969.