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Abstract

 

This article in AJ

  1. Vol. 51 No. 7, p. 403-406
     

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doi:10.2134/agronj1959.00021962005100070012x

Estimation of Available Soil Potassium from Plant Analyses1

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

Synopsis

Synopsis

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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