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Germinating plants on a sponge

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Old 12-30-2009, 05:20 PM
RenettaHogan RenettaHogan is offline
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Join Date: Apr 2009
Location: Silver City, NM
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Default Germinating plants on a sponge

I'm getting ready to start a hydroponic unit with 6 classes of elementary students. Since funds are tight, is it possible to use sponges soaked in nutrient for the germination phase or is there an even cheaper way? Can I also use 20-20-20 or 20-15-20 fertilizer that contains micronutrients but add a little more epsom salt and calcium nitrate to the mix?

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Old 12-30-2009, 06:10 PM
Amigatec Amigatec is offline
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Join Date: Dec 2009
Location: Oklahoma
Posts: 152

Peat pellets work good and they are cheap enough. I don't use any nutes until the plants are up and growing, and then at 1/4 to 1/3 strength.

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