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What is this deficiency with DWC, GH Trio, flower day 19
cheetobreathstarted grow question 4 years ago
I'm in about day 19 of flower and a deficiency just showed itself in the last day or so. It's in the last 3 photos of week 3 of flower in my journal. Any ideas on what it is and how I could mitigate the problem? Grow has been essentially flawless up to this point, thanks!!
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TheBudWhispereranswered grow question 4 years ago
Ur update intel is solid - if this is only presenting on a couple leaves than I wouldn’t up the calmag at all. If ur ph flux is only running low day by day than it could just be the imbalance with what the plant is taking in vs. What’s leftover in the res. She’ll be drinking a lot in week 3 of flower. Don’t change a thing and definitely give er a snip👍. Beauty knuckle on that bitch👌👍
BigDaddyKanswered grow question 4 years ago
Check the ph - it’s too much pk/calmag - I get it all the time less is more 👍 loving the grow ☝️
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Stonerdanswered grow question 4 years ago
This does indeed look like a Calcium (Ca) deficiency! with tips and margins developing yellow and brown irregular spots from bottom-mid to top of the plant.
This is probably the results of the low pH in the reservoir! low pH (acidic) in the solution or medium inhibits nutrient uptake such as Calcium.
Try stabilizing the pH and checking daily for improvement, if the problem persists try increasing the Calcium fertilization by about 30-50%.
Btw the top leaves curling and folding upwards are clear signs of light/radiation stress, you might want to increase distance from lamp to plant by about 5cm to stop it from getting worse.
Hope this helps! Good luck and happy growing :)
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