Definitely a localized deficiency.
In your previous example, the plant was basically shutting itself down due to semi-toxic levels of salts. That doesn't get you the "same results" at the end of the day. It gets you a less healthy plant, albeit perhaps productive nonetheless.
To play devil's advocate, it could be true due to higher photon output with LED vs HPS of the same wattage, therefore the plant could potentially use a higher EC, if all other factors were also already at optimum.
Most people can't taste subtle differences in general at all. A small % of the population can smell/taste much better than everyone else. People with big noses.
Hahahaha. Ive always wondered if im a super taster, i can usually taste things others dont notice.
This reminded me. I ordered a syringe to pull solution out of my rockwool to check the EC. The mailman just dropped it off about an hour ago, so I'll try it this evening. Thanks for the recommendation. (I'm pretty sure it was you, although I may be mistaken.)
extension.psu.edu
He's indicated that he needs to run more than DOUBLE the EC under LED. EC is exponential so 1.0 EC - 1.4 EC to 3.0 EC under LED wouldn't make up for any increase in photon output. He didn't say it was runs from the same clone, so if it wasn't the whole argument is invalid anyways.
Not really, below semi toxic it altered roots to accept more so the opposite of what your saying.
Maximum EC is dependent on multiple factors. In a high transpiration system 2.4 EC could burn the plants up and 1.2 EC could lead to deficiencies. It's also dependant on PPFD and CO2 supplementation.
No, EC is linear. E.g. add double the salt, the EC doubles
it's also that HPS increases leaf temps so they transpire more
Thanks for the correction, as @Kassiopeija pointed out it was pH that I was thinking of.
Think your deliberately missing my point whilst I'm agreeing with yours.
You're right, that is too extreme. I didn't look at the details. I could see going from 1.4 EC to 2.0 EC though.