Abstract
The effect of soil texture, CaC03, and temperature was studied on K fixation in the Kotli, the Pindorian and the Wazirabad soil series. These series were fine, medium and coarse textured, respectively. They were made calcareous by adding powdered CaC03 . K was applied @ 0, 50, 100 mg K Kg-1 soil as K2S04· K fixation increased with increasing clay and CaC03 content and also with increasing amount of K applied. The effect of temperature, though was inconsistent but maximum K fixation was observed when 12% CaC03 and 100 mg K kg" were added and temperature was maintained at 60°C.
