Plant husbandry – Water culture – apparatus or method – Nutrient recirculation system
Patent
1988-12-14
1993-02-09
Scherbel, David A.
Plant husbandry
Water culture, apparatus or method
Nutrient recirculation system
A01G 3100
Patent
active
051844206
ABSTRACT:
A computer controlled system for delivering of a fertilizing water stream to crop beds and varying the nutrient content of the water stream to customize it for each crop bed. The nutrient feed system utilizes injection pumps with pre-set dose volumes and a computer control which permits the pumps to be stroked at different frequencies based on the flow of a water stream to accurately control the nutrients injected and to permit accurate switching from injecting nutrients of one pre-set menu to those of another pre-set menu.
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Hort.Science, vol. 23 (5) Oct. 1988-Computerized Individual-nutrient Fertilizer Injector: The System-W. Bauerle et al.
Plant, Cell and Environment (1987) 10, 375-381; "A Microcomputer-Controlled System for the Automatic Measurement and Maintenance of Ion Activities in Nutrient Solutions During Their Absorption by Intact Plants in Hydroponic Facilities"; A. D. M. Glass et al.
Biosensors 1 (1985) 369-397; "The Development of Sensors for Hydroponics" W. J. Albery et al.
Labbate Eric M.
Liburdi Nicola
Papadopoulos Athanasios P.
Labbate Climate Control System Inc.
Scherbel David A.
Van Patten Michele A.
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