Moderation in all things...lol! I don't use their feeding chart, and I don't believe in force feeding plants. I'm making my solution by ppm. I'm using 100 ppms cal/mag
( just lowered it from my normal 120-150 in RO water ) and about 600 ppms of Megacrop. My medium is recycled soil. I PH my solution to 6.5 I think my formula seems to be right on the money from the looks of my plants. I'll step it up a bit, if they look like they need it, I doubt they will.
600 ppms of mega in 5 gallons of water is about 1 1/2 tbsp, plus a little bit more, maybe a 1/4 teaspoon.