Hello, I have some yellowing on one of my plants leaves and am not sure what it is she's deficient in. I am growing in 5 gallon fabric pots, in each one I used roots organic potting soil with about 1.25 lb of nature's living soil + 10 tbsp dolomite lime, 10 tbsp oyster shell flour, and 5 tbsp gypsum. I water using bottled spring water, the pH is just below 7 when I've tested it, about 6.8. Using ac infinity evo6 with the AI controller, so it tracks my temp and rh. Temp is around 70-75 degrees f, humidity is about 55-60%. The plant with the yellowing is my biggest plant, no signs of stunted growth. I am about 3 weeks into flower (from when I switched to 12/12). I am growing seeds from humboldt seed company, the plant in question is the big one in the back it is pineapple muffin, as is the front left plant. The other one is chicken n' wafflez (front right). I am using the self watering bases but still top water once a weekish. The yellowing has been going on since veg, added some bat guano during veg thinking it was a nitrogen issue. Doesn't seem to be exclusive to old or new growth. Did some lst to keep the canopy even, really digging these bud trainer bud clips. Anyway, I've looked at various charts and pictures of different deficiencies and can't seem to nail down which one it would be, thanks for any help!
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Might check you PH going in for a few days. Looks like classic cal/mag lacking with Iron also. Turning the corner to mid stage flower. It's pulling more from the leaves because there isn't enough in the medium and the leaves are closer. One thing at a time and watch. Nice garden. -
Looks like it could be a cal/mag issue since it's been around since veg. Your soil has some good stuff, but it might not be breaking down fast enough. Bottled water sometimes doesn’t have much magnesium, so a little cal-mag might help. Maybe check runoff pH too, just to be sure things are in range. Plants still look good though!Comment
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Testing run off is for guageing fertilizer build up in soil. PH will be slightly eratic at best. A soil slurry test is needed to get accurate readings on soil mediums.Comment
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With the self watering bases does the soil ever get a chance to dry out or is it always soggy down the bottom?Comment
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Not to be a grow nazi but your not in flower at the flip, its usually a week or more after that when you see signs of flowers to tell you your plant is in flower. When do plants growing outside flip? LOL. The downside of estimating the time in flower based on the flip will usually put your harvest calander off by 2 or more weeks. Plants dont have calenders and breeders lieComment
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Thanks for all the responses! I will try some cal-mag. Interesting, hadnt heard that about the self watering bases, i fill them and then when the pots feel light to lift i refill them, so i guess they dry out in-between watering. I didn't think they'd work as well as they do, I was surprised. As far as flowering times I guess I should have been more specific, while I changed the lights to 12/12 on 6/6 it was 6/14 that I noticed the first signs of flowering, so I'm a little over 2 weeks in i guess, ha ha. Thanks again!Comment
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