Mangel in der vegetativen Phase
GanjaGartenZwergstarted grow question 3y ago
My plants in Coco Perlite always have a deficiency at the beginning that I can't explain.
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Leaves. Color - Yellow
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SkunkleDamoanswered grow question 3y ago
You may need to pre treat Coco. I found that Canna Coco was ok but when I switched to plagron I encountered this. You really should run some calmag and a light base nutrient solution through before planting.
Coco is high in potassium and sodium which needs rinsing away. The cation exchange also then 'steals' cal ium and magnesium.
When growing in Coco calmag is necessary and should be given all way through till after wk 5 when you can clear use. Keep in mind tho that calmag usually always has nitrogen in it. I've seen 0:0:0 but it's usually 2:0:0 up to 6:0:0
Terp1answered grow question 3y ago
That's a magnesium deficiency.
Give more CalMag and make a foliar spray with Epsom salt to combat the symptoms immediately.
3L water - 1g Epsom salt / that's basically magnesium sulfate, and spray it on the plants for 2-3 consecutive days in the evening.
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