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I have black spots and burnt edges on a couple lea...
m0useanswered grow question 3 years ago
Some of the tips in the plant have a downward point to them, that is reminiscent of to much nitrogen. But only some of the new growth have it so that's a good thing. To much Nitrogen can lock out calcium.
The spots do look like a calcium and magnesium deficiency, so it could be to it need more or its locked out.
The ratio or concentration of that brand of calmg is 3.2%Ca to 1.2%Mg, ruffly 3:1, ideal is 2:1 its feeding recommendations are 2.5-5ml but can not find out if that's per L or Gal to compare it your grow.
Have you monitored the run off PPM?
Maybe all the right amount of nutrients are going in but there is to much salt buildup cause lock out.
If your PPM is 100+ higher then what it is going in you need to do a flush.
Good Luck and Happy Growing.
m0useanswered grow question 3 years ago
Ok so first things first,
Fix the PH and then work your way back from there.
If its still having issues with feed you can manage it better knowing the other stuff is corrected.
Good Luck
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Organomananswered grow question 3 years ago
One spot is not the end of the world, no plant will ever have 100% perfect leaves, 100% of the time.
Definite burning though from too much feeding, half strength is usually plenty strong enough.
I would also be dropping the baking soda (too alkaline) and reducing the application of hydroguard to once evey 14 days.
Remember too, what is now showing in the leaves is what occurred in the substrate 10-14 days ago, so expect a delay in what you are giving to when you see results, but upping the cal/mag/iron won't hurt, especially in a soil-less grow.
Cheers, Organoman.
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Ezzjaybruhanswered grow question 3 years ago
If you’re in soilless you needa get that pH down
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skeeteranswered grow question 3 years ago
Yes, I am using Maxi Bloom I forgot to update the nutrient schedule. I am monitoring PPM and PH runoff. I'm targeting a 6.5 pH runoff, and my runoff PPM has been 20% higher than what I've been feeding.
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Ezzjaybruhanswered grow question 3 years ago
It does look like excess nutes to me.. are you still running maxigro tho in flower? You need something with less N
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