Remember that in every instance, the pots should be placed on the mats and watered thoroughly to establish capillarity between the mat and the medium in the pot. It has been found tliat lighter root media give better results on capillary mats. Good aeration is essential. At the same time, a bit of soil (10-15%) added to a peat-lite or bark mix will improve water relations and consumer satisfaction. With your New England water, this method of irrigation should be used more widely.
Source: • Connecticut Greenhouse Newsletter #117