Growth of plants

Details Growth of plants Growth of plants

1976-04-08

1977-03-22

Bagwill, Robert E.

Plant husbandry

Greenhouse, apparatus or method

55385R, 428178, 52 2, 52 86, 47 29, A01G 900

Patent

active

040128679

ABSTRACT:
A greenhouse cloche etc comprising an outer light transmitting wall relatively impermeable to carbon dioxide and an inner light transmitting wall relatively permeable to carbon dioxide and gas admitting means for introducing carbon dioxide gas into the space between the inner and outer walls.

REFERENCES:
patent: 2782794 (1957-02-01), White
patent: 2910994 (1959-11-01), Joy
patent: 3389510 (1968-06-01), Stock
patent: 3741631 (1973-06-01), Laing
patent: 3769763 (1973-11-01), Kwake

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