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Fullmeltalchemist started grow question 3 years ago
Am I correct in diagnosing this as Calcium deficiency in the Black Sugar? I gave a basic compost tea yesterday. What else can I do to ensure she makes it through harvest?
Week 12
Leaves. Color - Mottling
Stick answered grow question 3 years ago
Hi @NullHypothesis! You are right, it looks like a Calcium deficiency. The weird thing is that this deficiency only shows up onto new leaves, whereas you seem to be having issues with old leaves. Now the big question is: what could have led to this situation? Have you been giving some extra cal+mag during the growth? Your pH looks fine, are you using RO water? Could it be a potassium abuse, making the rootzone unable to handle calcium intakes anymore? You can add some cal-mag or epsom-salt into your next feedings, it's probably a bit late because the deficiency has been there for a while, but it worth a try, Happy growing :facepunch:
Mrs_Larimar answered grow question 3 years ago
agree, and you got the right mixture to fix it.. happy growing
OutForReal answered grow question 3 years ago
Hello ! Yes the rust spots and the light green colour between dark veins makes me conclude the same thing. Your compost tea is a good idea only if it provide enough Cal or it will be like a regular feeding. Maybe some bone meal coup be a good idea to get rid of it if you wanna keep it organic or lime ( I don't know if lime is organic ). I hope it will help you :grin::v::skin-tone-3: