I perhaps missed it, but is there an advantage to front loading fertz other than convenience?
had worked it out that it's a little more stable throughout the weeks if you zoom out on the accumulation graph.
The nutrient accumulation graph for typical dosing shows a pretty big dip right after a 50% water change. For those of us who practice EI in spirit at least. And rightly so because we just halved the nutrient level. And then as the days go by and you dose, it gets back up to the water change level where it gets halved again.
But Gregg came up with a zany idea that doesn't seem so zany now. He asked why not just dump in the weeks worth right at the lowest point and let the plants figure out what they want to consume and we halve the leftover instead? Of course, this only would work if a nutrient doesn't break down in a day like fe gluconate. If you front dosed that, then it'd all be wasted by the next day. I think that was the basis of why micros are dosed daily or at least every other day. So to expand on my question, since @Maryland Guppy
figured out fe dtpa is seemingly stable -- maybe even up to 7 days, I'm wondering about the other micros that we dose. If they, too, are stable enough, then why not give them the macro treatment?
Try it out for yourself on the nutrient accumulation calculator on rotalabutterfly. Any number ought to work. Use 5ppm dose every 2 days with a water change of 50% on the 7th day. Draw it out to 120 days. You get peaks and troughs of 40 and 25. Now change the frequency to 7 days and increase the dose to 15 to compensate for the 3 doses. A rock solid line at 30. Of course this is no plant consumption. But even if u add in any reasonable plant consumption number, the peaks and troughs are less with front loading.
More stable, more available in the beginning of the week, and BEST of all, easier! Dump it at the beginning of the week and forget about it!
But yea, I'll concede that I do it out of laziness, and in the grand scheme of things, quite possibly the plants don't care at all, but since you asked nicely..