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


, : 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

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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Park S.K.; Kim K.Y.; Lee E.H., 1990: Use of underground water to lower the solution temperature in hot summer season hydroponics. Utilization of underground water was attempted to lower the solution temperature in hydroponics of cucumber (Cucumis sativus L.) cv. Gyousarichongjang in the hot summer season. Cucumbers were grown for 6 months (Mar. 20 to Sep. 20, 1989) in full s...

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