Plant husbandry – Water culture – apparatus or method
Patent
1989-08-02
1990-05-22
Hafer, Robert A.
Plant husbandry
Water culture, apparatus or method
47 61, 47 64, A01G 3100
Patent
active
049265849
ABSTRACT:
A method for hydroponics comprises submerging the lower region of a bulb and its hair roots for a selected period of time and for another selected period of time, lifting the bulb out of the water to expose to air the lower region of the bulb and an upper portion only for the hair roots of the bulb.
An aquatic float comprises a vessel having a floatable coaster in juxtaposition thereto, means temporarily securing the coaster to the vessel and a seed or bulb bed means disposed at least at one end of the vessel, the seedbed means including a plurality of passages through the walls of the vessel.
REFERENCES:
patent: 1775831 (1930-09-01), Salisbury
patent: 2531562 (1950-11-01), Eve
patent: 2930162 (1960-03-01), Mulford
patent: 3927491 (1975-12-01), Farnsworth
patent: 4292761 (1981-10-01), Krave
patent: 4382348 (1983-05-01), Kitsu et al.
patent: 4607454 (1986-08-01), Koike
Hafer Robert A.
Sam Charles H.
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