Plant husbandry – Water culture – apparatus or method – Cultivating chamber
Patent
1976-03-18
1977-11-15
Crowder, Clifford D.
Plant husbandry
Water culture, apparatus or method
Cultivating chamber
47 16, 47 62, 47 58, A01G 3102
Patent
active
040579301
ABSTRACT:
The apparatus includes a seed supporting screen mounted a predetermined distance above a water reservoir in which an aerator grid is immersed to provide a circulating flow of moisture droplets and moisture laden air around and through the screen to provide a maximum supply of the nitrogen in ordinary air to the seed roots exposed to the moisture laden air. The air coming up from the grid agitates and aerates a surface layer of the water supply. A regulatable preset thermostatically controlled heater is provided. The seed support screen is mounted in predetermined spaced relation above the level of the water in the reservoir below the screen. The method disclosed includes maintaining the water at a desired temperature while air is forced through the aerator grid introducing an even distribution of air bubbles into the water. The bubbles rise to the surface and break to thus continuously bathe the seed with an abundant supply of moisture droplets and moisture laden air for substantially accelerating growth.
REFERENCES:
patent: 1350229 (1920-08-01), Lee
patent: 2138188 (1938-11-01), Morley
patent: 2198150 (1940-04-01), Barnhart
patent: 2334232 (1943-11-01), Wells
patent: 2592976 (1952-04-01), Thomas
patent: 3305968 (1967-02-01), Dosedla et al.
patent: 3660933 (1972-05-01), Wong, Jr.
patent: 3759223 (1973-09-01), D'Andrea
"Influence of Continuous Aeration upon the Growth of Tomato Plants in Solution Cultures" Clark, et al., Soil Science vol. 34, 1932.
Bratlie Steven A.
Crowder Clifford D.
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