Plant husbandry – Receptacle for growing medium – Irrigator
Patent
1989-09-12
1992-04-28
Raduazo, Henry E.
Plant husbandry
Receptacle for growing medium
Irrigator
47 59, A01G 2500
Patent
active
051076217
ABSTRACT:
A hydroponic planter includes an outer container and an inner liner. The liner includes a central inverted cup-shaped reservoir for a liquid nutrient solution. The outer wall of the liner includes slots extending substantially above the height of the reservoir, to provide aeration of the roots of plants growing in the planter. A combined light and liquid level indicator determines the minimum amount of light in which the planter can be placed, shows when to add nutrient solution to the planter, and indicates when too little, sufficient or too much nutrient solution has been added. The light/liquid level monitor includes three light-transmitting rods of different lengths extending between the outer container and the liner; one extends to the bottom of the liner, another to below the top of the reservoir, and the third to near the top of the reservoir. The rods have flat upper indicating surfaces and conical ends so that the indicating surface becomes dark in appearance when the conical end is immersed in liquid.
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Dictionary Definitions From "The Condensed Chemical Dictionary" 5th edition .COPYRGT. Reinhold 1956.
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