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Crop Science Abstract -

A Low-Cost System for Circulating Nutrient Solutions in Pot Studies1


This article in CS

  1. Vol. 20 No. 1, p. 110-112
    Received: June 26, 1978

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  1. A. B. Guevarra,
  2. Y. Kitamura,
  3. A. S. Whitney and
  4. K. G. Cassman2



A simple, inexpensive nutrient solution circulation system was developed which could be duplicated in developing countries. The airlift perfusion principle was employed to continuously recirculate nutrient solution within individual pots containing porous medium. The system has proven to be very satisfactory for N studies including an 15N experiment and an evaluation of the transfer of legume-fixed N to a grass growing in a separate pot.

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