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This article in AJ

  1. Vol. 55 No. 3, p. 247-250
     
    Received: Aug 22, 1962
    Published: May, 1963


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doi:10.2134/agronj1963.00021962005500030012x

Chemical Composition of Kentucky Bluegrass (Poa pratensis) as a Function of Applied Nitrogen, Phosphorus, and Potassium1

  1. William M. Walker and
  2. John Pesek2

Synopsis

Synopsis

The mean percentages of N, P, and K in clippings were determined and expressed as functions of the applied fertilizer by multiple regression methods. The coefficients of determination for the 3 functions were all above 0.97, indicating that quadratic functions with linear ✕ linear interactions served to express the relationships well.

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