Cryogenic defoliation

Details Cryogenic defoliation Cryogenic defoliation

1979-11-16

1982-04-06

Bagwill, Robert E.

Plant husbandry

Material distributor with plant manipulating, cultivating or...

47 143, 56 1, A01G 100

Patent

active

043229107

ABSTRACT:
In the agriculture of various crops, required weeding or defoliation is commonly achieved by the application of chemicals or by flaming. Health and environmental hazards limit the number of chemicals which can be used. Chemicals are slow acting and can be prematurely washed away by rain. Flaming requires careful control and in many cases is impractical. Cryogenic defoliation carried out by spraying an inert liquefied gas such as nitrogen presents no health and environmental hazards and is not impaired by subsequent rain.

REFERENCES:
patent: 2290942 (1942-07-01), Clary et al.
patent: 3263439 (1966-08-01), Ross
patent: 3341970 (1967-09-01), Bailey
patent: 3472004 (1969-10-01), Erby et al.

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