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2 years ago
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Indoor
Room Type
Defoliation
weeks 5-7
LST
weeks 5-7, 9
Soil
Grow medium
Perlite
Grow medium
Peat
Grow medium
Grow Conditions
Week 9
Flowering
99.06
cm
inch
Height
18 hrs
Light Schedule
14+ conditions after
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Commented by
Dudditzou812 Dudditzou812
2 years ago
I'm getting quite a few yellowing leaves with brown spots. they eventually become crispy in the brown areas, and wilt where yellow. I'm thinking cal mag deficiency but for the time being I am not adding any nutes. they are all root bound so I gave them complete drenchings. pH before 6.9/runoff 5.9. tds 500 before/1200 runoff.
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Grow Questions
Dudditzou812
Dudditzou812started grow question 2 years ago
On one of my gg#4, the leaves are dark green and appear solid color under the grow light. When I take a picture, the leaves have yellowish spots on them. This plant has had identical care as the other 4. What could cause these spots?
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Leaves. Other
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CRiSPrGrow
CRiSPrGrowanswered grow question 2 years ago
hey there Dudditzou, sometimes that happens because the camera capture wave forms that get mixed up under the spectrum of the LEDs. it's good news though because you just caught the start of a magnesium deficiency and probably a P excess. the P excess is what will cause the yellowing towards the center of the plant and the magnesium deficiency is what will cause the yellowing on the sides of the leafs. Try adding potassium to even out your NPK ratio as well as adding calmag or just reducing your light cycle which is the root cause of these problems. Hope this helps ! 🚀
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Hashy
Hashyanswered grow question 2 years ago
There doesn't seem to be anything I can see wrong. I would be tempted to lower the PH closer to 6.5 as ph 7.0 is a little high. I know its recommended Ph 6 to 7 but I find above 6.5 locks out some vital nutrient.
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HerbalEdu
HerbalEduanswered grow question 2 years ago
From the photos in your diary i don't see anything to worry about. Happy growing
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Kilbarrack
Kilbarrackweek 7
They look a little droopy. Be careful you don't over water. Otherwise looking good
Dudditzou812
Dudditzou812
@Kilbarrack, thanks for the advice. I cut back and let them dry to 3" deep and the drooping leaves perked up. They are root bound below 3" even though they're in 5 gal pots so it runs off pretty quickly.
Kynareth
Kynarethweek 3
good luck with your grow
JOE_S_GARDEN
JOE_S_GARDENweek 3
Good luck with your grow mate. 🤓🌾🌱🤓
LoganatorDude
LoganatorDudeweek 9
Sometimes, those random brown crispy spots could be a manganese deficiency. I have noticed that typically most nutrients don’t have adequate levels to correct a manganese deficiency. Manganese uptake is reduced above a pH of 6.5 and severely reduced above pH of 7. On top of that manganese is a weird one that gets overlooked most of the time. However correcting a manganese deficiency is easier said than done, and in this stage it’s very possible it’s not a manganese deficiency, but just exhibiting symptoms similar. Shouldn’t be an issue. If you’re adding a lot of enzymes, manganese deficiency is more likely to come up. It can always be misdiagnosed as well, very possible it is nothing to do with manganese. I have had similar issues in the past only earlier during vegetative growth where there was a lot of time to correct the problem, and I have had no success until I later found out that it was indeed a manganese deficiency and I was adding way too much enzymes every time I watered. I have noticed there is always a decent potential for a false diagnoses, that’s why it really helps to keep track of what I have been putting in the water and the history of things so I can better narrow down my answer. Correcting a deficiency at this stage can be easier said than done without creating more issues. If you have something with a little manganese and not too much of other stuff it might not hurt. At the same time overfeeding your plant could cause a lot more problems. Anyways Happy Growing buddy! They’re looking good!