The aeroponic system is probably the most high-tech type of hydroponic
gardening. Like the N.F.T. system the growing medium is primarily air.
The roots hang in the air and are
misted with nutrient
mistings are usually done every few minutes. Because the roots are
exposed to the air like the N.F.T. system, the roots will dry out
rapidly if the misting cycles are interrupted.
A timer controls the nutrient pump much like other types of hydroponic
systems, except the aeroponic system needs a short cycle timer that
runs the pump for a few seconds every couple of minutes.
Hydroponic systems like this simple A frame designs make great use of a
small space. Because of using the vertical height, rather than a
horizontal flat design you can produce more yields with the same square
footage. As you can see this Hydroponic system is
constructed with two flat panels with holes cut into it for the plants
to rest in. These panels just lean against the A frame that sits above
a trough that holds the nutrient solution.
Inside there is
a nutrient delivery system simply made from PVC piping (like the kind
used for the sprinklers in your yard) with emitters that spray the root
system of the plants. The nutrients then drip back down into the trough
again where it is pumped back through the PVC piping to the root
systems again. You can find everything you need to build a Hydroponic
System like this at local home improvement stores, and for much less
money than you would spend to buy a pre-made system. Another advantage
of building Your own Hydroponic system is that you can customize it to
your needs as well as size.