Method and apparatus for supplementing the feed solution of hydr

Details Method and apparatus for supplementing the feed solution of hydr Method and apparatus for supplementing the feed solution of hydr

1988-09-27

1990-08-07

Scherbel, David A.

Plant husbandry

Water culture, apparatus or method

Nutrient recirculation system

47 101, A01G 3102

Patent

active

049456768

ABSTRACT:
A hydroculture has a feed solution tank 11 from which feed solution is supplied to the plant roots by capillary action or pump action. Feed tubes 12 of a hydrophobic microporous material which is water vapor permeable but not water permeable are laid in this feed solution tank 11, and salt water having a substantially elevated temperature relative to the feed solution is led through the feed tube 12. In this way the used-up feed solution is replaced by desalinated water.

REFERENCES:
patent: 2788316 (1957-04-01), Bjorksten
patent: 2807912 (1957-10-01), Bjorksten
patent: 3461606 (1969-08-01), Caloia
patent: 3528251 (1970-09-01), Falk
patent: 4057933 (1977-11-01), Enyeart
patent: 4182357 (1980-01-01), Ornstein
patent: 4572706 (1986-02-01), Tsuruta
patent: 4698135 (1987-10-01), Raab

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