All growers out there need to be aware of these marvels of pot technology.
The Air Pot
IMO, an essential piece of kit for the budding horticulturalist.
I use 7 litre pots. I generally squeeze 5-6 ounces dry from that. A friend who has an abundance of light and digitally controlled temps has managed 12 ounces from one!
I used to use 15 litre 'normal' pots, and didn't achieve anywhere near the same yield.
Why? Because of the air.
The way these work is that like normal pots, roots grow to the outside edge from the middle (or tap root). With a normal pot, the roots will basically wrap themselves around the perimeter of the pot, potentially becoming root-bound if you don't keep a close eye on them.
The air pot has the 'teets' that you can see which are open to the air. Basically the root grows out to the edge, is forced through the teet, and is 'air pruned' when it's exposed. This causes the root internally to branch out, filling the pot inside almost entirely. I've never been root-bound in one of these. Other obvious advantages is fresh air to the root-zone, constantly.
You'll probably need to keep a closer eye on your temps down low, so the roots don't get cold-shocked or anything.
But these are highly recommended
