PPK Theory
Introducing “Hydraulic Redistribution”.
In the beginning of this thread with plant or ppk #1, I maintained a strict “no top watering” policy after
the first two weeks and I grew a decent plant. It produced 7 1/8 oz of dry bud. I guess I just wanted to
see if I could do it with this new device. With each successive plant, however, I began top watering
various amounts and frequencies to see if it would have a profound effect upon growth. What I found was
that a small amount of top watering produced a better plant. The first plant had the lowest yield of any
ppk to date. All subsequent plants have yielded more. What I found was that a very small amount of
water applied several times a week to the top of the medium improved growth. I am not talking about
enough water to supply the plant, but just enough to moisten the top. The plants were still getting the
bulk (90% plus) of their water from sub-irrigation.
I had no clear explanation of why this was occurring, only that it was. I also wondered about the necessity
of continuing this practice throughout the life of the plant. I have continued it to date at all stages of
growth just because I didn't understand the mechanism.
I now think I know why and for how long.