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Submitted by: Larry

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Hydroponics in a lake is an interesting concept; one that I want to try out someday...all I need is the lake. Theoretically it should work with the right approach but I don't think floating pieces of styrofoam would work very well. First of all, wave action on the styrofoam would slowly break the styrofoam into pieces not to mention that a storm would probably topple the little rafts. Second, there would be little to no nutrients available for the plants. But what you are describing will work and has been done before by the Aztecs with their chinampas. These were floating stick rafts on which were placed a layer of soil with plants. Eventually the plant roots would hang down into the lake to absorb any and all nutrients it could find - mostly from saturated soil dripping nutrient down from the soil layer on the raft. So if you could modify your design to include sturdier rafts and place a layer of soil on top that you replenish now and then...I do not see how it could fail.

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