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This article in SSSAJ

  1. Vol. 52 No. 4, p. 1188-1191
    Received: Jan 29, 1987

    * Corresponding author(s):


Soil Aggregate Instability Index and Statistical Determination of Oscillation Time in Water

  1. S. Valmis ,
  2. P. Kerkides and
  3. S. Aggelides
  1. Agricultural Univ. of Athes, 75 Iera Odos, Boanikos, Athens 11855, Greece
    Soil Science Inst. of Athens, Greece



A new method for classifying soils on the basis of aggregate stability is presented. The method, based on the concept of an instability index β is simple, quick, and gives reliable results comparable to those obtained with the laborious more commonly used methods. The optimum time of oscillation for the determination of the instability index, β was determined by statistically analyzing data for nine soils. According to this analysis, β is a reliable index of the relative aggregate water-stability when oscillation times of at least 4 min are used.

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