Water, Sun, Minerals and Nutrients
This is what is required for plants to grow. The tormato will help you feed your plants down at the root level, keeping the leaves dry and decreasing the instance of diseases. Simply drill some holes in the stake end of the Tormato (on the loops face) and another hole above ground at whatever height is comfortable and make it large enough to put your nutrients of choice into. I use an organic Alfalfa/Corn/Molassas brew that stinks to high heaven, but I suppose you could put whatever you feel your plants might need.