Do these ideas apply to plants?
Are there imbalances that can reduce nutrient uptake?
Do certain nutrients interact in ways that make them unavailable?
Is it possible to overdose certain nutrients?
Does it even matter in any measurable way?
IMO Yes for all 5 questions.
EI method was designed as non-limiting.
Chelated iron choice depends on one's pH level.
User amounts may vary relative to plant density.
This topic provides great debate, everywhere.
Is all of the debate fact or fiction? I've tried to sort it out and failed.
20 or so spreadsheets of dosing recipes from others and myself.
Scientific study is not really aimed @ aquatic plants either.
Experiment with your tank and water parameters.
Everyone's source water and tank is different.
Find what grows your plants best, avoid stupid mistakes, and most of all remember you can't grow everything.
Some plants will fail it happens to all of us.