I hadn't used gypsum before in my soil mixes so read up on it a bit recently.
It's recommended only for top dressing and gently watered in...pre-mixing appears to be a no no in many cases as it stuffs the soils ability to drain...not an issue when adding later..takes a while to take effect as the cal needs to unbind, not immediately available I read....
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For sure , that’s the plan and I have tried dolomite. I’ve moved away from it and have been testing crab meal with a thought to try gypsum, as my symptoms may show cal deficiency as one problem( and Cal is immobile ). My soils PH is generally right on 6.6-6.8.
As you’ve said in the past it’s also a balance of everything, with light intensity especially with powerful LEDs, which I have. You got the nutes bang on and add more light, bam! You got a deficiency.
So I continue to focus mostly on the basics water, light intensity, and environment. Only tinkering lightly with amendments beyond my pre-made amendment pack between runs. IMO most folks get too complicated and make it worse.
Generally only EWC, crab meal for Cal, insect frazz (also on hold for now as it’s in my amendment pack already and I’m not sure more N is helping)
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Thx Bluey, Im always interested to hear other growers thoughts. I’m really not sure at this point.
I seem to have this problem regularly in my grows. There is lots of green down below and all the symptoms seem to be light stress but treating for light stress never seems to fix it. I do constantly grow different strains and go between autos and photos so that does complicate the issues. Last grow I had that Acapulco Gold 8” from the light and it loved it, but usually at 16” I show signs of light stress. I do check both PPFD and DLI is in range and even low in an effort to fix it. It’s tricky in living soil as you don’t have as much control. Luckily the buds keep coming out nice and my jars are always full, so I’ll just keep working at it till I get it
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Most of what I'm seeing looks pretty good. Nice big fat buds.
You've got lots of nice green canopy below those buds too. Lots of pigment change or loss above a healthy canopy but only on the buds.
Doesn't look like light stress as the buds aren't showing that to me. Could it be strain related or maybe an immobile nute deficiency? PK?
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Final weight on 6 single colas in 1 gallon pots. 65.5g
As I said they aren't dense because of foxtailing but so sticky they don't even fall into the bottom catch on my grinder.
Beautiful, terpy goodness lol.
And the beat goes on. Every 2 weeks.
Waiting for my tax return. I see an auto water system and control system incoming.
RSO was only run through coffee filters. Still a full spectrum, decarboxylated product.
"Little Jack Horner,
Sat in a corner, eating his Christmas pie.
He put in his thumb,
And pulled out a plum,
And said HOLY SHIT AM I HIGH!"
-George CarlinLast edited by FurnaceBoi; 03-11-2025, 04:42 PM.
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