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Deficiency or toxicity?

BrannabisTHC
BrannabisTHCstarted grow question 2 years ago
Hey growers! Do you know if the discoloration caused by toxicities, PH fluctuations or deficiencies?
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Leaves. Color - Yellow
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LoveGrowWeed
LoveGrowWeedanswered grow question 2 years ago
It looks like magnesium. But maybe you have the wrong PH, because of this block of elements. Do you have a PH meter? https://www.wietforum.nl/uploads/monthly_2018_10/marijuana-deficiency-chart-jorge-cervantes.thumb.jpg.43e1bbec1925b6fc1e203a4807c496d5.jpg And as colleagues below advised. It is better to rinse the earth / coconut, adjust the PH. And only then water with fertilizers.
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Ezzjaybruh
Ezzjaybruhanswered grow question 2 years ago
Could be any of those.. this is a symptom. There could be many causes that create that symptom. That’s why maintaining a diary and attaching said diary is extremely helpful. What medium you in? What are you feeding? What pH is going in ? What pH is coming out from runoff? What EC is going in ? What EC is coming out? Etc etc etc
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Coopmc
Coopmcanswered grow question 2 years ago
I follow a flush with Sensuzime to clean root mass and provide light nutrients to hold plant over till feeding
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Coopmc
Coopmcanswered grow question 2 years ago
https://growace.com/blogs/learning-center/how-to-fix-nutrient-lockout
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Coopmc
Coopmcanswered grow question 2 years ago
Either way same fix good flush followed buy proper feed will remove excess nuts and it relive nutrient lock up and help root mass drainage
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