See that is an interesting tidbit that would have not come to light without this thread
I was told that topdressing takes place "in between rounds" i.e. after a completed flowering run, you remove the spent plant and plant in a new one and THEN you topdress, the idea being that you give back to the soil what the just removed plant had taken out of it.
Meaning you add all the nutrients you initially had in your soil mix, just more concentrated (without being mixed into additional soil).
And here we have h.h. saying he already starts topdressing in veg and just does micro doses, a little here and there and continues to do so all throughout the growth cycle.
This, to me, is an interesting proposition!
I have long felt that the former method leaves some things to be desired. I couldn't come to a conclusion yet because I had the buckwheat hull issues to eliminate first but I would imagine that my plants will be a bit hungry for nutrients in mid flower the latest and that the effects will be worse once I go into round 2 with the soil, even after topdressing all nutrients. That was just my experience in the past (although, like I said, buckwheat hulls ...).
I have since broken my head over how to counter this and previously had some success and considered continuing with aerated compost teas with EWC, kelp and krill (crab) meal.
Now instead of brewing ACTs every other week during flower and chalking up sickly plants in veg to being root bound, it might be smart for me to at least try h.h.'s method and simply top dress small amounts all throughout the plant's lifecycle.
I will definitely give this a try at least, provided I didn't misunderstand anything.
Another thing I believe to have noticed:
I have considerably upped (as in doubled - actually stopped measuring recently) the nutrient amendments in my soil mix from what was originally written in the "recipe". And have had no ill effects so far. On the contrary, I feel like my plants are happier for longer so far. Although something is definitely still off... Some plants do considerably worse than others and I always wondered if they just got less nutrient rich soil in their pots from me not mixing it enough or something ...
Or these plants are just phenos who require more feed/can use it ...
So I am developing a doubt about "overfeeding" the soil so easily. It seems like the soil, even in 5 gal pots, can balance out a lot of "overfertilising" and that it seems quite hard to actually burn the plants from too many nutrients in organic soil. In the past, as advised for beginners, I erred on the side of "too little" but now am tending more to err on the side of "too much"...
I mean Subcools "supersoil" and other recipes, definitely err on the side of "too much". I just went with coot's recipe and that one advices erring on the side of "too little" for sure.
Also: with h.h.'s method, I could adjust the nutrient amounts for individual plants. The one yellowing earlier from the bottom than the rest? Hit it with some more EWC on top for more N... etc.
I like this, will give it a try.