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Abstract

 

This article in AJ

  1. Vol. 54 No. 5, p. 450-453
     
    Received: Dec 30, 1961


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doi:10.2134/agronj1962.00021962005400050023x

Potassium Fertilization of Intensively Manage Grasses under Humid Tropical Conditions1

  1. José Vicente-Chandler,
  2. Robert W. Pearson,
  3. Fernando Abruña and
  4. Servando Silva2

Synopsis

Synopsis

Grass yields responded strongly to yearly applications of up to 400 pounds of K per acre and at a slower rate to even higher applications. With 800 pounds of K, exchangeable soil K content was maintained and two-thirds of the applied K was recovered in the forage. At the 1600-pound rate, recovery in the forage was reduced but exchangeable soil K content was increased. K content of the forage increased with rates and with yields.

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