How do commercial vegetable growers view this issue of wet versus dry ?
They try not to fall prey to marketing gimics! Typically growers perform leach tests to determine how well a product hydrates, how quickly it drains, and then how rapidly it re-hydrates. They look at the rooting profile under both low and high light conditions to ensure that the rockwool product is compatible with their irrigation strategy. And last, but not least, they grow a crop on it!
