According to
current culture and there chart nutrients taper off after week 6 and 7 as you can see.these people make the nutrients that goes into there systems so I have to say they know something I dont.there chart shows the heaviest feeding during weeks 6 and 7 which is right where I'm at,than start to drop EC so this may just be a under current thing.
If this was one or 2 runs gnome than I might agree with you on a bad batch or mistakes made cause it happens and we all make them but this has been my experience for every grow I've done in UC that after week 6 my ppm will start to rise in the buckets indicating I have to lower it gradually cause the plants are not absorbing micronutrients in the system.
These are healthy plants with perfect ph,roots are good,everything else is in check.
The only thing I questioned was
calmag being to high and maybe the plants not having a need for it,as I've never changed the ratio of
calmag towards the end and it adds alot of ec to the res.
Might be worth adding less
calmag after week 5 to see if it makes any difference.
But the chart they made is for a reason.they are still saying ec should drop the last 3 weeks the week before flush.
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