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What kind of deficiency? What should I do? By the way, they're autos.

romi27
romi27started grow question 3 years ago
What kind of deficiency do I have going on here? I gave a good dose of calmag last night. The first signs were the dark spots on the leaves. Been feeding ff bloom nutes every other day, 1/4 to 1/2 strength. started from the bottom. Leaves turn yellow and then dry up.
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Week 6
Leaves. Color - Yellow
Leaves. Color - Dark-brown
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Chow_13
Chow_13answered grow question 3 years ago
Looks like toxicity to me, Way to many nutrients causing nutrient lockout.. I would skip the next few feedings and use just water. First sign is the leaf tips start to burn. After that you start seeing both toxicity's and deficiencies because the roots are getting burnt and are unable to absorb nutrients correctly. It will take a few weeks to clear up as you are feeding nutrients and have her in a super soil.
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BluesGrow
BluesGrowanswered grow question 3 years ago
Trying to stay away from the nutrients a little and water with a compost tea for veg or flowering depending what stage you're in. Less is more whether it be water or nutrients. Found cannabis to be very Brazilian with a strong recovery capability. Mr Canucks Grove has a good compost tea and I use it every other week
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Christo
Christoanswered grow question 3 years ago
Add much more calmag. Feed twice a week in between waterings. Not every other day and raise your light a touch
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jeffrey420
jeffrey420
yellow leaf, brown spots deficiencyCan you guys help me identify this deficiency??
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