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This article in AJ

  1. Vol. 56 No. 6, p. 545-548
    Received: Apr 13, 1964



Soil Temperature Effects on Phosphorus Availability1

  1. J. F. Power,
  2. D. L. Grunes,
  3. G. A. Reichman and
  4. W. O. Willis2



Incubation temperatures above 59° F. reduced water- and NaHCO3-soluble P concentrations in P fertilized soils, but had no effect over the 45 to 80° F. temperature range on P solubilities in non-phosphated soils. Growth and P uptake by barley grown on similar cropped soils were closely associated with soluble P concentrations in the uncropped, incubated soils. At soil temperatures above 59° F., barley growth increased with increased NaHCOs-soluble P concentrations, even at concentrations greatly exceeding 16 ppm.

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