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This article in SSSAJ

  1. Vol. 42 No. 4, p. 657-659
     
    Received: Aug 15, 1977
    Published: July, 1978


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doi:10.2136/sssaj1978.03615995004200040024x

Water Relations of Fritted Clay1

  1. C. H. M. van Bavel,
  2. R. Lascano and
  3. D. R. Wilson2

Abstract

Abstract

Experiments and calculations were performed to characterize the water relations of fritted clay, a material which has been found suitable for growing experimental plants. Its dry bulk density is 0.67 kg/liter, particle density 2.50 kg/liter, total porosity 0.73, and saturated hydraulic conductivity 9.5 × 10−4 m/sec. The desorption relation was measured and the unsaturated hydraulic conductivity as a function of water content was calculated. Much water drains from the saturated material by gravity. After drainage from commonly used containers, the material holds 0.31 by volume of plant-available water, and has an air-filled porosity of 0.28. Its water relations are excellent for plant growth purposes.

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