Plants and most things adapt well to a range, vs fest of famine.
Plants use a certain set of enzyme that take up nutrients with a certain concentration range, say 1-5ppm of NO3, another set at 20-30ppm and so on..........or with CO2, they have plenty of Rubisco to scavenge every bit of CO2 when there's hardly any around, but if we add it at 30ppm, they need much less to do far more growth.
This biochemical machinery takes time to adapt to these concentrations.
Put another way, our bodies do the same thing.
If you where fed once a week say 14000 calories, vs 2000 calories per day, you'd adapt much better, be much happier with the daily rate.
Total would still be the same, but you'd be hurting near the end of the week.
I ran out of food on a long solo backpacking trip in the sierras, no food for 3 days (damn bears got my food). I adapted well after the second day, but it took time and I was not feeling too well. Needed salt mostly(which I had and rationed out).
It takes a week or two for plants to adapt, and in some cases, 4-8 weeks.
So changing things around is not good for them.
It confuses them basically, daily vs 2-3 times a week is okay, below 2x a week unless there is not much light etc, you ought to dose more often.
Now if you use mineralized soil or worm castings, or ADA AS, now you have a buffer, a source that is long term for all nutrients. So you can do a little of both using the sediment + water column, so then 2-3 week really does well, or even 1x a week if you have lower light. You can still do it daily and dose frequently etc, this will reduce the depletion of the sediment nutrients.
Regards,
Tom Barr