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Soil Science Society of America Journal Abstract -

Effect of Drying on Volcanic Ash Soils in Chile1


This article in SSSAJ

  1. Vol. 29 No. 4, p. 481-482
    Received: Sept 25, 1964
    Accepted: Mar 26, 1965

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  1. E. B. Schalscha,
  2. C. Gonzalez,
  3. I. Vergara,
  4. G. Galindo and
  5. A. Schatz
  1. University of Chile, Santiago, Chile



Air drying produces significant irreversible changes in volcanic ash soils. Air-dried samples with clay texture in the field appear to have sandy texture according to laboratory analyses. Air-drying also markedly affects cation-exchange capacity, soluble P, and soluble Fe. The nature and extent of changes in the latter two properties vary with different methods of analysis. Air-drying decreases the pH slightly. These results show that mechanical and chemical analyses of volcanic ash soils more accurately indicate field conditions when samples contain moisture at field capacity.

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