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Cant stop N deficiency

PersasH
PersasHstarted grow question 3 years ago
Im not being able to stop the yellowing of lower leaves going up. Lowere leaves are diying and the next level is yellowing. A couple of days ago i fed it with N ti stop it but does not seem to work. PH in runoff read 5.9 with 6.5 input water ph. Any ideas on how to stop it?
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Week 5
Leaves. Dropping off
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PricklyPete
PricklyPeteanswered grow question 3 years ago
Since you're in flower and it's pulling mobile nutes up from the lower leaves, I'd guess you need more bloom nutes. P + K + Mg much more than Nitrogen. A 5.9 pH runoff could be locking out some of the nutes too, I'm thinking Mg specifically (which prefers at least 6.0 or 6.5+). I suggest you try feeding it with a higher pH water to get the runoff into the correct range, and see if that helps.
ChitownCannaChica
ChitownCannaChicaanswered grow question 3 years ago
Hi, it’s an auto! Defoliate and feed some good old water for now. Autos seem to like less food.
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rhodes68
rhodes68answered grow question 3 years ago
Need to list full nuet schedule and what you have done to this point as if they are not taking up N then something may be wrong at roots
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