I started from your nute tutorial, then did a literature search to see what was available to build on that.Yes that is exactly correct. Yes I used the wrong Part B number in the chart. Stoner move.
I convert the elemental weight into EC because most growers associate PPM with EC and they can more easily follow a feed schedule based on it. Of course you are in a group that understands the science expressed in weight.
Yes I am working in a broad spectrum for target nutrient values because I did not have the means to do otherwise when I started and I am still limited by the inputs I am willing to acquire. I am incredibly lazy in the long run. Did I mention Cheap.
I am not familiar with the study your refer to but have read many with different NPK ratios and good results. I am basing mine on my personal observation adjusting within known starting parameters as I go. I am getting very close now. My goal is to grow 6 plants to completion with as little $ as possible with the same characteristics as those plants grown in TLS done in hydroponics consistently. It sounds simple but it is not. Genetics is a wild card that is always in play.
I would be honored to pull up a chair and watch another scientific salt approach if you don't mind. I am never afraid to learn new things.
My targets are based on the articles in this thread:
It's impressive how scarce the academic research is up until recently - but I guess that's what you get from years of prohibition.
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Their results are based on only one or two strains of photos - so not sure how useful they will be for general autos. I can only test them so much going two plants at a time, but someone's gotta try 'em.
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Side note: The US NIH (National Institute of Health) has a really good open-access database of journal articles (link here), and a good number of cannabis articles show up there.