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Soil Science Society of America Journal Abstract -

Role of Humic Carrier Substances in DDT Movement through Forest Soil1

 

This article in SSSAJ

  1. Vol. 35 No. 1, p. 145-147
     
    Received: July 6, 1970
    Accepted: Oct 5, 1970


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doi:10.2136/sssaj1971.03615995003500010041x
  1. T. M. Ballard2

Abstract

Abstract

In DDT-treated forest floor columns, over 30 times as much DDT was recovered by leaching with water when urea was added to disperse the humic acids. Using similar treatment and analysis, alundum tension lysimeters in soil 2 cm below the forest floor yielded no detectable levels of DDT. In DDT-treated humic extracts, 91% of added o,p'-DDT was recovered in humic acids and 9% in fulvic acids plus water.

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