Wouldn't that be simply mixing some Osmocote Plus (or comparable) into the medium and then just watering the plant when it gets thirsty, lol?
Good luck with your grow; I hope you do well. I don't see much in the way Dyna-Gro usage any more. IDK if it's just because there are so many different nutrient brands these days or if folks just get turned off by all the GMO seed Dyna-Gro sells. But "back in the day" their nutrients worked, so I suppose they still do.
I hadn't browsed around their website in a while, so I thought I'd take a look. I notice they use pictures of cannabis plants on their website now (and some of their packaging), lol, and mention it in some of their product descriptions. I always kind of figured that was about all people grew with it, anyway, but I might be mistaken.
I did notice that they "give away" their sample pack, the customer just has to pay a "nominal" shipping and handling charge of $30. Six little eight-ounce bottles... That must take a lot of handling apparently (or maybe they hand-deliver it, lol?).
You don't use the bloom component during flowering at all? Do you use any kind of "P-K" supplement at all, or something else that allows you to start cutting the nitrogen late in flower? Apologies if you've already discussed this. I just saw the thread title and started reading initially because I was wondering if you were using some sort of dry time- / controlled-release fertilizer for your nutrients, and haven't read your entire thread as of yet.
Anyway, best of luck with your grow!