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This article in JEQ

  1. Vol. 8 No. 1, p. 130-132
     
    Received: Apr 24, 1978


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doi:10.2134/jeq1979.00472425000800010028x

Prediction of Algal-Available Phosphorus in Runoff Suspensions1

  1. P. J. Huettl,
  2. R. C. Wendt and
  3. R. B. Corey2

Abstract

Abstract

Methods for estimating the potential availability of sediment-P forms are desirable for better assessment of the impact of runoff waters on surface water quality. The P sorbed by resin-affixed hydroxy-aluminum equilibrating with simulated sediment suspensions was evaluated for use as a routine means of estimating relative availability of P. A highly significant relationship (r = 0.98**, n = 5) was found between availability estimated by resin extraction and that determined by bioassay. For the soils tested, resin-extractable P averaged 98% of that found to be available to algae by bioassay.

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