Have one plant that’s most affected by this, others only have slight yellow tips(similar to minor bite burn) but healthy otherwise and growth is still fast. ec is stable at 1.2 and oh stable at 5.7-5.9 in DWC. Only the upper leaves have the yellowing edges and nothing underneath.
Anyone diagnose this
- Thread starter Marcorfl
- Start date
dwc420letsgo
Well-Known Member
Potassium deficiency. I’d try raising ec a bit if ph is in range.
beefninja97
Active Member
either too much calmag or too much P locking out K
That's low K (potassium).
The yellowing / burning on the edges (margins) of the leaves is the distinctive giveaway.
Consider adding 1/4 to 1/2 teaspoon of potash (K20) per gallon until the problem resolves. Watch for improvement on the new growth, as the leaves that are already damaged are unlikely to recover.
Good luck.
The yellowing / burning on the edges (margins) of the leaves is the distinctive giveaway.
Consider adding 1/4 to 1/2 teaspoon of potash (K20) per gallon until the problem resolves. Watch for improvement on the new growth, as the leaves that are already damaged are unlikely to recover.
Good luck.
Dwc