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Agronomy Journal Abstract -

Estimation of Available Soil Potassium from Plant Analyses1


This article in AJ

  1. Vol. 51 No. 7, p. 403-406

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  1. M. W. Phillips and
  2. S. A. Barber2



Results from greenhouse and field experiments indicate that total potassium uptake is a more precise measurement of available soil potassium than is the percent potassium in the whole plant or in the sixth leaf. Total uptake of potassium varied less with variations in nitrogen, phosphate and plant weight than did percent composition.

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