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This article in AJ

  1. Vol. 74 No. 1, p. 147-148
    Received: Sept 19, 1980



A Heat Exchanger for Soil Temperature Control of Potted Plants1

  1. D. C. Robacker,
  2. P. K. Flottum and
  3. E. H. Erickson2



A heat exchanger that regulates soil temperature of individually potted plants is described. The device is a water jacket into which a single pot is inserted such that drainage of the potted plant is not restricted. Heat exchange occurs between the soil of the plant and water which circulates through the water jacket. In experiments, heat exchangers connected in series maintained soil temperature within 3 C of a desired value. Advantages and disadvantages of this method of soil temperature regulation are discussed.

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