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This article in AJ

  1. Vol. 50 No. 3, p. 148-151
    Received: July 20, 1957

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Yield, Potassium Content and Root Distribution of Alfalfa and Bromegrass Grown Under Three Levels of Applied Potash in the Greenhouse1

  1. K. Lawton and
  2. Milo B. Tesar2



In greenhouse trials, significant increases in yield and K absorption of alfalfa and bromegrass were obtained as applied K increased. Yield response to fertilizer K was less marked with soil containing more available soil K. Total production of bromegrass was half that of alfalfa, but the quantities of K removed were about equal. The change in several extractable fractions of soil K was directly related to the root distribution pattern of the forage.

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