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Soil Science Society of America Journal Abstract -

A Low Abrasion Crusher for Preparation of Air-Dried Soils for Element Extraction


This article in SSSAJ

  1. Vol. 53 No. 5, p. 1589-1591
    Received: July 19, 1988

    * Corresponding author(s):
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  1. C. G. Kowalenko  and
  2. B. S. Scobie
  1. Agriculture Canada Res. Stn., P.O. Box 1000, Agassiz, British Columbia, Canada, V0M 1A0
    Engineering and Statistical Research Centre, Research Branch, Agriculture Canada, Ottawa, Ontario, Canada, K1A 0C6



A crusher was developed for mechanizing the preparation of air-dried soil samples for nutrient extraction including metals. The crusher simulated manual crushing of samples with a rolling pin. All surfaces contacting the soil were plastic and the crusher could be thoroughly cleaned, minimizing the risk of sample contamination. Readily available materials were used to achieve low fabrication costs. The crusher used two rollers, rotating in opposite directions and the crushed sample was further processed by a vibrating plastic sieve. The pressure between the rollers was adjustable. The prototype crushed and sieved samples from a variety of soil types faster and with less effort than manually with a rolling pin. The conceptual approach offers a consistent and reproducible mechanized process of soil sample preparation for multiple element extraction purposes.

Contribution no. 376 from Agassiz Res. Stn. and no. C-023 from Engineering and Statistical Research Centre.

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