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White Widow Auto - Double the Trouble

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5 years ago
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5
Grow Conditions
Week 7
Flowering
101.6
cm
inch
Height
18 hrs
Light Schedule
11+ conditions after
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Nutrients
ml/l
ml/gal
tsp/gal
2+ nutrients after
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Commented by
Sublime374 Sublime374
5 years ago
I'm probably going to forget more than half of the things I wanted to write down, but here goes. Confirmed the problem I've been seeing is a pH problem with the soil. It's too acidic and I have no idea why. I tried to flush the soil with alkaline water but after about 250 drops of pH up and 15 or so gallons of highly alkaline water through plant 6's pot, the run off stayed low and never changed. So I found out about pulverized dolomite lime, top dressed a tablespoon of that per gallon of soil and now I just get to wait. It's supposed to take two weeks to correct the soil pH and there's really nothing else I can do at this point. Now I understand why people say newbies shouldn't grow autoflowers. If this was a photoperiod in the veg cycle I could have corrected all of this before going into flower, but now I've got to take what I get. Major lesson learned. I thought soil pH was dependent on the pH of the water going in. Now I realize the pH of the water going in has absolutely zero effect on the soil. Going forward I'm going to top dress some powdered lime on every pot and redress it about once every 4 weeks. It shouldn't take the soil over 7.0 even if I do too much. If I start to see a phosphorous deficiency without a cal/mag problem then I'll know I did too much and I'll just wait and let the soil become more acidic since that's what Ocean Forest seems to do for me. I'm also going to stop wasting time pHing water or nutrient solution because the soil will bring it down on its own. I'm really looking forward to being done with this grow and getting going on a new one with a clean slate knowing what I know now. I really feel like I'm wasting my time with the current plants because of the acidic soil so hopefully something changes. Every day, every plant just seems to get worse. I added the lime on 1/5 (day 47) so fingers crossed I see some signs of improvement by 1/19, but it may be too late by then.
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MisterPandaBear
MisterPandaBearweek 14
Can you highlight the equipment you used for these results?
Sublime374
Sublime374
@MisterPandaBear, Light used was an HLG 550 3000k V2. Tent was a 4x4 Gorilla Grow Tent. Exhaust Fan/Can was a 6-inch Vivosun package on Amazon. Main air circulating fan in the tent was a Honeywell Quiet Set. That's all of the equipment I can really think of that matters.
Buddha2
Buddha2week 14
Congratulations! Looking yummy ๐Ÿ‘Œ
Mr_Weeds_Autos
Mr_Weeds_Autosweek 12
both plants are looking great, almost ready for harvest, great job growmie.
Denzul
Denzulweek 11
Some lovely colors on that lady. Fantastic work. Beautiful purple color starting to come in nicely. Keep doing what your doing and best of luck the rest of the way growmie
raptor65
raptor65week 1
Good luck with your grow mate๐Ÿ‘, looks to be coming along just fine ๐Ÿ‘Œ๐Ÿ‘Š, all the best for your future harvest ๐Ÿ˜‰๐Ÿ˜Ž
Master_weeda
Master_weedaweek 1
Second like for weedawan ๐Ÿ˜‰ Good luck for your grow ๐ŸŒฑ
Master_weeda
Master_weedaweek 1
May the force be with you ๐Ÿ’ช
Sublime374
Sublime374week 8
Just wanted to add that I got the opinions of some growers I respect and they have diagnosed the problem as too much calcium. Lesson learned for next grow. I'm not going to supplement calcium in any form until I see an actual deficiency that isn't caused by lockout, which I may or may not be able to recognize, but I'm willing to try ;)
Sublime374
Sublime374week 6
I'm posting this on day 43. I watered a few plants tonight and did the same nutes for all of them, but used 10 drops of pH down in one gallon, and no pH down or up in the others. All gallons used had the same pH (6.5) when I measured them with a digital meter. I then went and tried the pH test kit that's done with drops of test solution that came with my pH down/up kit. That also shows the water is at 6.5. I tested run off for pH. The gallon that got the 10 drops of pH down produced 5.9 run off. Liquid test confirmed it was very close 6.0. The other gallons produced 6.1 run off and liquid test was a tiny bit greener meaning the pH was slightly higher. I think I'm going to flush with some straight up plain old water that hasn't been pHed and see if I can get the soil to be less acidic. I think I finally understand what's happening with the multiple deficiencies and I'm hoping that things haven't reached the point of no return yet. Is it normal for tap water pH to fluctuate?