Method and apparatus for controlling plant growth with artificia

Details Method and apparatus for controlling plant growth with artificia Method and apparatus for controlling plant growth with artificia

1991-12-02

1993-12-14

Britts, Ramon S.

Plant husbandry

Miscellaneous

Modified earth's surface, e.g., sod, turf, reinforced

47DIG6, A01C 100

Patent

active

052690938

ABSTRACT:
Disclosed are a method and an apparatus for controlling the plant growth with artificial light in plant factories, atria, etc. The stem extension and the leaf/stem dry weight ratio can be controlled artificially by the ratio of the additional far-red irradiation (700-800 nm) to the photosynthetically active radiation (PAR 400-700 nm). In a chamber for cultivating plants, an artificial lighting source, having 3-band fluoscent lamps for PAR and far-red fluoscent lamps for far-red radiation, is employed.

REFERENCES:
patent: 4060933 (1977-12-01), Kadkade
patent: 4146993 (1979-04-01), Freeman, Sr.
patent: 4749916 (1988-06-01), Yamazaki et al.
patent: 4761913 (1988-08-01), Henningsson et al.
patent: 4788793 (1988-12-01), Kadkade
patent: 4952443 (1990-08-01), Gravesse
patent: 5012609 (1991-05-01), Ignatius et al.
patent: 5058316 (1991-10-01), Watari

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