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Leaf problems
Notacrimeyostarted grow question 3 years ago
Hello,
my plants been manifesting these symptoms all over the leafs (last 2 days). While flushing the 30L coco pots, ph runoff was 6.10, ppm 350-400. Veg day 42. Analyzing my behavior I wasn't watering with 20% runoff, for technical reasons.
Now I will. What deficiency is this?
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Leaves. Color - Dark-brown
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TheCannaBritanswered grow question 3 years ago
Looks like cal-mag to me bud, happens with coco. I double dose with calmag in coco
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Manollo420answered grow question 3 years ago
Most deficiencies are a result of overwatering. When you overwater the fragile roothairs start to rot resulting in them not being able to take up nutrients anymore. Even when you dump in kilograms of Potassium, the plant will still show signs of Potassium deficiency.
This is very tricky as you can imagine. Preventing is the way to succes.
Not sure if this is also the case with coco, i only on grew soil sofar.
GL anyways!
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Jaegermeisteranswered grow question 3 years ago
It looks like Potassium deficiency.
Some growers like to flush their grow medium to ensure they are not dealing with other issues, such as overfeeding which can interfere with Potassium uptake. Chicken manure as a top dressing to your grow medium can help, as can a Potassium rich nutrient feed or foliar feed. Organic seaweed is particularly useful as a foliar feed.
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