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Potassium deficiency?
GODSGIFT_2005_JMstarted grow question 4y ago
Can someone pls. confirm that this is a potassium deficiency? I’m in the 6th week flower
I was very low on ppm feeding
It’s effecting the upper leaves mostly
Using LED 150w marshydro
It’s an organic grow.
Please let me know Thanks!
Solved
Feeding. Deficiences
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InspireMeanswered grow question 4y ago
Hi mate, the spots suggest more of a calcium deficiency to mem but like you say your ppm is on the lower side. If it were me I'd up the feed and add cal mag (more if you're already adding.) But be careful as cal mag contains N so make sure to limit the N in your other products by looking at the NPK values.
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