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COMPARISON OF LEACHING AND FIXATION OF POTASSIUM AND RUBIDIUM IN SOILS USING THE ISOTOPES K42 AND Rb86

Journal Article · · Soil Science (U.S.)
In an experiment with soil columns, the leaching of rubidium and that of potassium were compared by adding equivalent amounts of KCl and RbCl to the top of the columns, followed by leaching with water corresponding to about a 110-mm rainfall. The distribution of rubidium and that of potassium were determined by tracer methods with the isotopes Rb/sup 86/ and K/sup 42/. There was no loss-of rubidium or potassium in medium heavy clay, but the rubidium was more concentrated in the upper part of the columns than was potassium. This was found also to be true in sand, though here both elements had moved further down than in the clay soil. The leaching loss of potassium in the two experiments was about twice that of rubidium. In fixation experiments it was found that rubidium was fixed more strongly than potassium. (auth)
Research Organization:
Norwegian Coll. of Agriculture, Vollebekk
Sponsoring Organization:
USDOE
NSA Number:
NSA-14-015516
OSTI ID:
4156435
Journal Information:
Soil Science (U.S.), Journal Name: Soil Science (U.S.) Vol. Vol: 88; ISSN SOSCA
Country of Publication:
Country unknown/Code not available
Language:
English