Plant husbandry – Frost preventing
Patent
1983-07-01
1988-08-16
Hafer, Robert A.
Plant husbandry
Frost preventing
47 27, 47 31, A01G 1300, A47G 708
Patent
active
047634405
ABSTRACT:
A system and method for protecting a ground plot of foliage plants or the like from freezing contemplates a series of ground-level sprinklers throughout the plot and a shade cloth covering of the type having uniformly dispersed openings therein. Elevated sprinklers are provided above the shade cloth and ground-level sprinklers. During periods of freezing ambient temperatures, water is sprinkled through the elevated sprinklers whereby the water freezes in the openings of the covering and holds heat released during operation of the ground-level sprinklers under the covering. When the water droplets freeze into a thin sheet of ice on the covering, the ground-level sprinklers are turned on.
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Hafer Robert A.
Muir D. N.
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