For saving space and soil, this method also has several
other benefits, including no soil-borne diseases, no
weeds to pull and no soil to till, run-of-the-mill side
benefits of soil-less gardening.

Do not use ...

Do not use the nutrient solution more than two weeks. If the solution is used for longer periods, it will probably build up salts or fertilizer residues that will damage the plants.

Seedlings or rooted cuttings may be used in this system. The aggregate material should be flooded and the solution drained off before planting. This will leave a well-packed, moist seedbed.

Hydroponics Guide

Seeds may be planted directly in the aggregate material. Do not plant too deep. Flood or sprinkle the tank with water frequently to prevent the aggregate material from drying out at the surface. If this happens, small seedlings may die. A few days after the seedlings have germinated, start using nutrient solution.

The safest way to get the plants established is by transplanting the seedlings from a germination bed. The seed should be germinated in a medium that is free of soil. Soil on the roots may cause them to rot, and may also cause trouble by getting into the nutrient solution.


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