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Patches/ yellow spots

Bilboi1
Bilboi1started grow question 4 years ago
Hi everyone. Iv got 2 autoflower plants my wedding cake one is completely normal. And my purple punch is like this. Both been given exactly the same feeds and nutrients since seeds was cracked. But cant work out why one has it, when my wedding cake dosent. Cheers everyone
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Leaves. Color - Yellow
Plant. Other
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JUNGLE_B4RNS
JUNGLE_B4RNSanswered grow question 4 years ago
It’s a Calcium deficiency. You might be somewhere past middle flowering and less than 4 weeks from harvest. Control the EC level of the drain to make sure it isn’t too high. The absorption can be curbed by a high level of ammonium, potassium, magnesium and/or sodium in the root environment.
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Igrowneil
Igrowneilanswered grow question 4 years ago
Looks like to much N , lay off the cal mag it's got N PRESENT and your In flower , your plant uses very little N during flowering so any added N at this point will pretty much keep being toxic. Don't add any N , grow nutes or calmag for at least 10 days the plant might need a few extra days as any sick days you don't count or overeating etc. Keep giving P-K
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Bilboi1
Bilboi1answered grow question 4 years ago
Both had calmag in case of low nuts but not fixed it and only on the one plant in same tent
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