Purple City Genetics Gush mints

FlowerPower88

FlowerPower88

Well-Known Member
nxsov180db said:
Am leaf seration burns can be VPD related. the leaves sweat out the sides a causes the burn, same idea as tip burn from too much nutes.
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I keep it pretty well in or so slightly out of the range that it wouldn’t be that, but I do appreciate that input, that’s what I’m looking for, things I hadn’t thought of.
My temp is between 84-88f and humidity stays around 55-60%, four fans at multi levels, and an inline fan pulling to the outside from the top.
 
N

nxsov180db

Well-Known Member
I just read again that you were using jacks ultraviolet? That stuff has about twice as much P as the plants can handle.. Im not sure what they're thinking still on the old train of thought that a massive amount of P will give budsites smh. I talked to them about that before but they didn't seem to get it, idk.. Anyway I think you had luck with the ultraviolet before because after you stopped using it you were only feeding a small about of P, now you've been adding MKP instead of K-Sulfate which is making the toxicity show.. You were already at toxic levels, very toxic with the ultraviolet, but because you only use it for a couple weeks and then move onto a mix with low P you never notice.. If you use ultraviolet at the recommended dose its about twice as much P as weed can handle.
 
FlowerPower88

FlowerPower88

Well-Known Member
nxsov180db said:
I just read again that you were using jacks ultraviolet? That stuff has about twice as much P as the plants can handle.. Im not sure what they're thinking still on the old train of thought that a massive amount of P will give budsites smh. I talked to them about that before but they didn't seem to get it, idk.. Anyway I think you had luck with the ultraviolet before because after you stopped using it you were only feeding a small about of P, now you've been adding MKP instead of K-Sulfate which is making the toxicity show.. You were already at toxic levels, very toxic with the ultraviolet, but because you only use it for a couple weeks and then move onto a mix with low P you never notice.. If you use ultraviolet at the recommended dose its about twice as much P as weed can handle.
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Thank you, yeah I bought a shit ton on sale :wall: a little over a year ago. I think I should probably switch to their regular 10-30-20 bloom for a week or 2 and ditch the ultraviolet.
 
FlowerPower88

FlowerPower88

Well-Known Member
Week 7 over and it’s only gotten worse, as is keeping with the trend, which is leading me to think it isn’t the UV, as I never have problems with them until 2-3 weeks after the last dose of ultraviolet. I broke down and sent a tissue sample out to Logan labs this morning, and should hear back by Friday what they have too much of and what they are lacking. I think I over did the MKP, I was up to 8.5-9g per 5 gallons of water, so I cut that all the way to 6 this week and it’s gotten nothing but worse. I think potassium toxicity is locking out magnesium, but I don’t really know, it seems like K excess/deficiency and mag lockout are all slightly similar. :wall: View attachment IMG_0387.jpegIMG_0388.jpegIMG_0389.jpeg
 
secretmicrogrow420

secretmicrogrow420

Well-Known Member
FlowerPower88 said:
Week 7 over and it’s only gotten worse, as is keeping with the trend, which is leading me to think it isn’t the UV, as I never have problems with them until 2-3 weeks after the last dose of ultraviolet. I broke down and sent a tissue sample out to Logan labs this morning, and should hear back by Friday what they have too much of and what they are lacking. I think I over did the MKP, I was up to 8.5-9g per 5 gallons of water, so I cut that all the way to 6 this week and it’s gotten nothing but worse. I think potassium toxicity is locking out magnesium, but I don’t really know, it seems like K excess/deficiency and mag lockout are all slightly similar. :wall: View attachment 5365862View attachment 5365863View attachment 5365864
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are you in coco coir? i am in coco week 8 of flower and my plants seem too have a nutrient deficiency like its very minor but my leaves are starting too have little spots on them, i am moving onto rockwool next grow and im pretty excited about it <3 :3
sorry your having problems man :(
 
FlowerPower88

FlowerPower88

Well-Known Member
secretmicrogrow420 said:
are you in coco coir? i am in coco week 8 of flower and my plants seem too have a nutrient deficiency like its very minor but my leaves are starting too have little spots on them, i am moving onto rockwool next grow and im pretty excited about it <3 :3
sorry your having problems man :(
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Yes I’m in coco, I’ve been interested in rockwool, but have always been under the impression that running sterile is more important in rockwool and I was working on this organic synthetic fusion nutrient recipe…but shit went south in the back end of 2023 and hopefully I get it sorted out by spring, I want fire again!
 
Go go n chill

Go go n chill

Well-Known Member
FlowerPower88 said:
Week 7 over and it’s only gotten worse, as is keeping with the trend, which is leading me to think it isn’t the UV, as I never have problems with them until 2-3 weeks after the last dose of ultraviolet. I broke down and sent a tissue sample out to Logan labs this morning, and should hear back by Friday what they have too much of and what they are lacking. I think I over did the MKP, I was up to 8.5-9g per 5 gallons of water, so I cut that all the way to 6 this week and it’s gotten nothing but worse. I think potassium toxicity is locking out magnesium, but I don’t really know, it seems like K excess/deficiency and mag lockout are all slightly similar. :wall: View attachment 5365862View attachment 5365863View attachment 5365864
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7th week of a 9 week flower cycle? I hate having issues that never get resolved. Good luck, I hope it works out for you
 
FlowerPower88

FlowerPower88

Well-Known Member
Go go n chill said:
7th week of a 9 week flower cycle? I hate having issues that never get resolved. Good luck, I hope it works out for you
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Well hopefully in a day or two I have some answers, I think I’m going to keep the 12-4-16 for veg but switch to the 3-2-1 for flower, but we’ll see what the lab results say, maybe it will encourage me to stick with this base.
 
Go go n chill

Go go n chill

Well-Known Member
FlowerPower88 said:
Well hopefully in a day or two I have some answers, I think I’m going to keep the 12-4-16 for veg but switch to the 3-2-1 for flower, but we’ll see what the lab results say, maybe it will encourage me to stick with this base.
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Well a 3-2-1 still isn’t a correct ratio for flower, atleast that’s what people say. I try to have a plethora of different nutrients on hand to throw at my plants.
Calibrate your ph meter is something I always do.
 
FlowerPower88

FlowerPower88

Well-Known Member
Got my test results back and it seems like potassium is a bit high as I suspected, and boron is through the roof which explains most of my symptoms, but not why there’s so much boron in the first place.IMG_0458.jpeg
so I emailed the guys over at jacks with the results and he sent me back this handy dandy chart, and to remove any bias from it, they have the survey ranges for the plant, then their lab ranges that they have tested healthy plants, then they have the ranges from the literature and lastly the deficiency threshold, for each macro and micro. They even have what the nutrient controls or affects in the plant! IMG_0465.png
So Brett from JR Peters said that the high boron and potassium definitely explain my issues, and he said the lower calcium numbers may explain the excess of Boron.
 
FlowerPower88

FlowerPower88

Well-Known Member
Pretty sure I figured it out. I used one of my sprayers this spring/summer to apply solubor, and didn’t use it again until I noticed some spider mite spots around week 4/5, so I sprayed, 3 days in 7, a light alcohol/surfactant mixture, not realizing the borrow was in there, quite heavily as I was preparing 12 yards of soil when I used it months before. So I’ve cleaned out all my sprayers and watering cans.
 
FlowerPower88

FlowerPower88

Well-Known Member
Here she is after week 8 whipped like a used up horse, but still gonna smoke good, definitely damaged yield, no real plumpness to the nugs like usual.IMG_0492.jpegIMG_0493.jpeg
And in case anyone wants to know what severe boron toxicity looks like, refer them here:IMG_0494.jpeg
Clean your sprayers and vessels out and be consistent :wall:
 
FlowerPower88

FlowerPower88

Well-Known Member
This was on Monday on day 70. View attachment IMG_0658.jpegIMG_0657.jpeg
I harvested the next day at 10pm on Tuesday, I let it go dark and cold from Monday at 4am til Tuesday at 10pm, I’m not a believer in the whole dark period at the end thing, but why not, they smell better in the dark. These plants were purple, they were resinous, but the size was def. Not there this time, I can only suspect having 10x the ampunt of necessary boron through the life of the plant has an effect. :wall:
 
FlowerPower88

FlowerPower88

Well-Known Member
Well I got pretty much exactly a lb off my 4x4. Not a loss by any means, but this plant can easily do 2 in that space, so, I’ve just got to take it as a lesson and get better. But a lb of this should ease my sorrows:IMG_0849.jpeg
 
Snowback

Snowback

Well-Known Member
I respect that you post the good and the bad. Like you wrote, this could be helpful in that it gives readers a visual example of boron issues.
 
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