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This article in AJ

  1. Vol. 56 No. 6, p. 575-576
    Received: Mar 25, 1964



Effect of Aerationand Mechanical Impedance on the Root Development of Alfalfa, Sugar Beets and Tomatoes1

  1. T. W. Scott and
  2. A. E. Erickson2



A greenhouse experiment was conducted to determine the edects of soil oxygen on root development when plants were grown with soil layers of bulk density 1.90 at 4 inches below the surface. The tap root of alfalfa penetrated the dense layer. Fibrous roots branching from the tap root were greater in amount in the dense layer where calcium peroxide was used as a source of oxygen. Tomato and sugar beet roots responded similarly to the peroxide in the dense layers.

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