Using jacks on a flowering schedule of 4,2,1 in autopots. Also add mono potassium phosphate at 1.5 per gallon. Flipped lights to flower august 14th. Should be about a month or so from harvest. I haven’t been in the tents as much as I’d like and peaked in today and noticed some issues. Ppms at 1100 going in. Ph 5.8-6.0. All equipment is blue lab and am recalibrating the ph meter as I write this. Anyone feel free to advise what these girls are not liking or need more of? I’ll tag a few to get this started.
What are your runoff numbers looking like? Are you in soil or coco? Soil PH should be 6.3-7.0, so I’d get that up alittle bit. I will add that sometimes in late flower, the leaves do start to change as the plant is nearing the end of life.
Shootings from hip on this, but maybe too much phosphate. I just don’t really know what a toxicity condition like that should look like. I have gone 3/2 ratio with jacks and added small amounts of mkp, but only for a short period of time.
Im thinking that feed is a bit much for autopots. To be clear i do not use them but without any form of runoff i bet u got some buildup in the coco. Why i painfully top feed my coco. I believe i read alot of autopot guys reduce the feed a tiny bit bc of. Just a thought.
If it were me i would remove from autopot and top feed flush with half strength jacks untill numbers are good, then run a gallon of full strength through each, let dry out and reintroduce to the auto pot. Im not a expert on autopots but would be what i would do.
I would take it out of the Autopot and get some runoff numbers. Shots of the whole plant? That looks like a pretty large old leaf, and super healthy otherwise, might just be time where she’s cannibalizing?
I can’t imagine a calmag deficiency at 4,2,1. I would be slightly more worried about magnesium toxicity as there is mag in the partA which you’ve you upped and continue to add Epsom. I have been running the 4,2 ratio also, but I barely add more Epsom. Not that my last grow is winning any awards
Did not find a fix.
I am now Back to 3 weeks in flower and noticed white spots on leaves. Currently running jacks 4,2,1 and 1.5 of mono potassium phosphate. Ph is good, using autopots. Doing my 21 day trim now. Any ideas what’s causing the white or little yellowish dots?
