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So at day 55 I'm noticing that some of my lea...
NarwhalUpstarted grow question 5 years ago
So at day 55 I'm noticing that some of my leaf tips are looking a bit burnt and some rust colored spots are showing up on the leaves. I read that this might a deficiency of cal or mag or a ph issue. Just wondering if any one could help my diagnose this issue and try to fix it.
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motaman311answered grow question 5 years ago
Calcium is best absorbed by the roots in the 6.2 - 7.0 pH range, but calcium specifically tends to be best absorbed above 6.2. You could use a Cal-Mag supplement or add calcium organically. Dolomite lime works or egg shells. Crush some eggshells to powder and boil for 20 min to an hour. The cooled water should have enough dissolved calcium in it to feed the plants then you can sprinkle the powdered eggshell on the soil and gently work it in.
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