Plant husbandry – Process
Patent
1982-05-25
1984-03-20
Eickholt, E. H.
Plant husbandry
Process
47 62, 239407, A01B 7900, A01G 3100
Patent
active
044372647
ABSTRACT:
The method of supplying nutrient liquid to a plant growing system comprising a series of many planters that are essentially alike and that are disposed at a common level, the system including a supply line extending from a supply point to the planters in succession, including the steps of first supplying a first nutrient liquid to the supply line at the supply point under pressure so that the planters receive nutrient liquid to progressively lower levels in relation to their distances from the supply point due to attenuation of pressure along the supply line, interrupting the supply of liquid for equalizing the levels of liquid in the planters, thereafter supplying a second nutrient liquid different from the first at the supply point so that the planters receive such second nutrient liquid to progressively lower levels in relation to their distances from the supply point, and interrupting the supply of the second liquid for equalizing the levels of liquid in the planters, thereby to develop a range of different nutrient liquids in the successive planters.
REFERENCES:
patent: 2062755 (1936-12-01), Lyons et al.
patent: 3660933 (1972-05-01), Wong, Jr.
patent: 4245433 (1981-01-01), Sjostedt et al.
patent: 4300311 (1981-11-01), Marchant
patent: 4324069 (1982-04-01), Flagg
patent: 4334386 (1982-06-01), Burcombe et al.
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