Wow Gee, thank you for making the effort! I really appreciate that.
In my last grow I top dressed... I wonder how long the goodies in the essential blend take to be released if watered in from a top-dress.
This time I had the spent soil from the last grow, some fresh unused soil from the same bag and I was a bit short so I added some well used potting soil in which I had been growing chard (which uses up nitrogen right?) Then I added some essential blend and mixed it all up before putting it in the pots. The cloth pots are
20 Ls each.
(Then I added the extras that I have listed on that feeding chart.)
How long after the introduction of the offending substance would it take for a nitrogen toxicity to present in such a soil? That might make it easier to narrow down.