How many times a day did they water or “flush” the pots during the flushing period?
And How much water did they run through the pots while “flushing them” during the flushing period?
What was the pot size?
And what was the frequency and volume of fertigation , nutrient solution during the feeding period?
Did they taper the nutrients down with the unflushed group towards the end of flower?
Did they use dryback at all during fertigation or did they keep the coco pots completely saturated the whole time?
Did they use dryback during the flush or did they keep the pots completely saturated the whole time?
These are important variables IMO and without this information the results of this study are somewhat vague.
Looking at the yellowed leaves on the “unflushed” leaf pic, it looks like they achieved a bit of a fade with the unflushed group, and the 14 day flush group had brown leaves!!
From this study I can’t conclude much about “ “flushing” since they apparently didn’t even say the volume of water used.
However it looks like the unflushed group had a nice fade so what I got from this study is that a nice yellow fade is important for flavor, but don’t overdo it with too much “flushing” to the point that the leaves turn completely brown...
..that’s what I got from this “study”