I've heard of people experimenting with low levels of fertilizers (stuff in the sticky up top) especially when it comes to a lot of Neps and a huge greenhouse.
I was wondering if any of you have tried using Worm Castings? I've been reading into organic fertilizing and they get a lot of good feedback. One of the good things about worm castings from what I read is that they don't even burn the most delicate of roots.
Anyways I ordered a 30lb bag for some of the produce I'm growing and I think I'll run a few experiments. From what I've read there's 2 ways to apply it. 1) Add a thin layer on top and water overhead, the nutrients will go to the roots. 2) Boil some water and make a "tea" out of it and foliar feed/water with it. Looking at the NPK values for worm castings they are really low.