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Abstract

 

This article in AJ

  1. Vol. 54 No. 5, p. 393-395
     
    Received: Dec 18, 1961


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doi:10.2134/agronj1962.00021962005400050007x

Effects of Four Amendments on Soil Physical and on Yield and Quality of Putting Greens1

  1. R. R. Smalley,
  2. W. L. Pritchett and
  3. L. C. Hammond2

Synopsis

Synopsis

Peat and vermiculite increased penetrability. Hydraulic conductivity was increased by fired clay and decreased by vermiculite and colloidal phosphate. Fired day and peat increased noncapillary pore space while vermiculite and colloidal phosphate produced a decrease. Grass yield and quality were increased by vermiculite and cotloidal phosphate treatments. Turf yield and quality decreased with an increase in hydraulic conductivity and in the force required to penetrate the soil. Bulk density was not a satisfactory index of grassproducing ability of soil mixtures.

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