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This article in SSSAJ

  1. Vol. 49 No. 6, p. 1576-1578
    Received: Nov 13, 1984
    Accepted: July 5, 1985

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Increases in Extractable Ions in Infertile Aquults Caused by Sample Preparation1

  1. F. S. Gilliam and
  2. D. D. Richter2



Effects of sample preparation on dilute acid-extractable ions were measured for paired unground field-fresh and ground air-dried soil samples taken from three depths at two sites in the coastal flatwoods of South Carolina. Concentrations of most extractable ions for the two preparation methods correlated closely. However, grinding and air-drying increased extractable NO-3 concentrations by 6 to 10 times, NH+4 and PO3-4 2 to 3 times, and base cations up to 2.5 times. Ion releases from grinding and drying soils in the laboratory are related to soil organic matter and to field changes in soil moisture depletion.

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