Hydroponics & Tomatoes

James Marek jmarek at raider.rhs.brevard.k12.fl.us
Thu Sep 28 12:55:54 EST 1995

        Hello, my name is Kelly Shiels and I am a science research
student at Rockledge High School. This year I am doing a project on
Hydroponics and using them to grow tomatoes. Any information you could
give me on geoponics would also be appreciated. I need to know what kind
of soil is best for use, and I also need to know what kind of solution I
should use. I have Knopp's solution, and I have Sach's solution.
        Knopps is:
                Potassium Nitrate-19g
                Magnesium sulfate-0.25g
                Potassium Phosphate-0.12g
                Potassium Chloride-0.12g
                Ferrous Chloride-traces

        Then I have Sach's solution:
                Distilled water-1,000mL
                Potassium Nitrate-1g
                Sodium Chloride-1g
                calcium sulfate-0.5g
                Magnesium sulfate-0.5g
                Superphosphate-0.5g (Failry pulverized)
                ferrous chloride

        I also have a solution that was just titled Modern Hydroponic
                Magnesium sulfate-0.78g/L
                calcium phosphate-0.4g/L
                potassium nitrate-0.77g/L
                calcium sulfate-1.43 g/L
                I am not sure which of these solutions is the best to
use, and any information you could give me on this topic would be greatly

      Kelly Shiels

More information about the Plantbio mailing list