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The use of underground water to lower the solution temperature for hydroponics during the hot summer season

Research Reports of the Rural Development Administration, Horticulture 32(3): 12-15

The use of underground water to lower the solution temperature for hydroponics during the hot summer season

In cucumber Gyousarichongjang grown in Hoagland and Arnon solution during the period 20 Mar.-20 Sep. 1989, the temperature of the nutrient solution was decreased by underground water flowing at 2.5 litres/minute from 10.00 to 18.00 h through polyethylene tubes 25 mm in diameter, with walls 0.1 or 1 mm thick, placed in the root bed or in the solution reservoir, or with free flowing water beneath the root bed.

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Accession: 002530683

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