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Manganese deficiency?
Nugget_head88started grow question 1d ago
There are small brown spots and some yellowing, I'm using calmag with every watering as my tap water is 0.1ec but I think perhaps she's getting too much iron, which is causing a manganese deficiency.
Seems to be slow moving.
Any advise is greatly appreciated.
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m0useanswered grow question 17h ago
Not seeing issues with Ca but some with Mg. How much are you feeding them?? giving CaMg is normally not a massive issue, unless its to little or way to much.
Might need to revisit your feeding program and confirm its getting enough of it.
Other sources of Mg for plants can be epsom salts. Hits S and Mg without the added Ca.
https://420life.com/wp-content/uploads/2021/10/Marijuana-Leaf-Deficiency-Chart-scaled.jpg
Also might be good to start a diary an then its will add some depth to the question.
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John_Krameranswered grow question 20h ago
Ca excess (pbly i didn't lisen to me before so... whatever)
Fe excess has different symptoms
keep using CalMag like others tell u to and very soon u'll ruin ur plant _=
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Ratleanswered grow question 20h ago
Where did it start, top or towards bottom of plant? Are all her growing conditions in check? Can't always go straight to nutrient problem. Could be soil issue. The brown tip in one pic could be several things, PH, nute burn, nute deficiency. Appears Nitrogen deficiency, leaves will curl upward, not the tip but the edges. Calcium will start towards top of plant, new growth, and Magnesium at bottom older leaves, leaves will curl downward. Pic of whole plant would be helpfull. She needs full spectrum of nutrients her whole grow so make sure your fertilizer has both Macro and Micro nutes.
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