NASA NTRS · 19940000654
Root-Contact/Pressure-Plate Assembly For Hydroponic System
Abstract
Hydroponic system includes growth channels equipped with rootcontact/pressure-plate assemblies. Pump and associated plumbing circulate nutrient liquid from reservoir, along bottom of growth channels, and back to reservoir. Root-contact/pressure-plate assembly in each growth channel stimulates growth of roots by applying mild contact pressure. Flat plate and plate connectors, together constitute pressure plate, free to move upward to accommodate growth of roots. System used for growing sweetpotatoes and possibly other tuber and root crops.
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Morris, Carlton E., Loretan, Philip A., Bonsi, Conrad K., Hill, Walter A.. 1994-11-01. Root-Contact/Pressure-Plate Assembly For Hydroponic System. https://ntrs.nasa.gov/citations/19940000654
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