Kush Killington
Well-Known Member
well im stumped. After 3 weeks of a slow slow yellowing creeping up my plants ive decided to try to inlist yalls help.
Yellowing
- Thread starter Kush Killington
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Kush Killington
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Kush Killington
Well-Known Member
Only my big plants are doing this. They are 6 weeks and 2ft tall (topped a few times too)
Im thinking root bound.
Soil ph is 6.7
I fed at 6.3-6.9
Using RO water
I have raised nutes, lowered nutes, flushed, and jus yesterday repotted into 1g smart pots (from 1g normal pots). They were suppose to be moms but got big so i took a bunch of clones and was gonna flower them but they're health is only declining. Pics don do justice. They are very light green compared to their clones. Clones are uber healthy and have been recieving the same nutes..
It looks like it cud be MG def in reverse (veins yellow first and work out to edges).
Or a N def.
Leaves eventually turn completely yellow, shrivel a little and fall off.
Sir KK
Im thinking root bound.
Soil ph is 6.7
I fed at 6.3-6.9
Using RO water
I have raised nutes, lowered nutes, flushed, and jus yesterday repotted into 1g smart pots (from 1g normal pots). They were suppose to be moms but got big so i took a bunch of clones and was gonna flower them but they're health is only declining. Pics don do justice. They are very light green compared to their clones. Clones are uber healthy and have been recieving the same nutes..
It looks like it cud be MG def in reverse (veins yellow first and work out to edges).
Or a N def.
Leaves eventually turn completely yellow, shrivel a little and fall off.
Sir KK
Sire Killem All
Well-Known Member
N def. Water ph @6. R u using a digital ph meter or dye?... soil ph is high also.
Sire Killem All
Well-Known Member
Clones i imagine are alot smaller so gonna need alot less nutes
TheChemist77
Well-Known Member
looks like your a couple weeks into flower huh?? plants look good overall, yellowing leaves in flower can be a bunch of things,not enough light getting to them, not enough nitrogen in ur bloom fert, or the plant is taking in nutrients from its own leaves, or the leaves have already served their purpose and are going to continue to yellow, get brittle and fall off...normally i would say to flush them a few times to get out any salt or nutrient build up then resume to your nutrients,,,or maybe you need diferent nutrients..often plants start yellowing after put in flower because of the nutrient change, they went from getting high nitrogen fert ilizers to low nitrogen and higher pk values,, its like a shock tthe system..
BustinScales510
Well-Known Member
Id agree with rootbound. 6 weeks is a long time for vegging in 1 gallon.
Kush Killington
Well-Known Member
@Chemist - Plants arent in flower. I veg using the 12-1 (glr) light cycle. Plants are on the edge of flowering at all times.
@Bustin - yeah rootbound was next on my list. As i said i just repotted them yesterday. I cut off about an inch from the bottom of their root balls and replanted into gal smart pots. Smart pots are wider then what i had to they shud have lots of root space. They all looked pot bound too. To early to say if that was the overall cause thou.
Sir KK
@Bustin - yeah rootbound was next on my list. As i said i just repotted them yesterday. I cut off about an inch from the bottom of their root balls and replanted into gal smart pots. Smart pots are wider then what i had to they shud have lots of root space. They all looked pot bound too. To early to say if that was the overall cause thou.
Sir KK
Kush Killington
Well-Known Member
Im using a ph meter. At first i didnt ph. Nutes mixed up to 4.5. Plants flourished. At the time my soil ph run off was like 5.9.
Added some lime to my soil and started to ph up to atleast 6.3 AFTER plants started to yellow.
This was also after i tried raising nutes.
Im using Nature's Nectar (N, P, K), GO Calmag, earth juice microblast, protekt, and epsom salts. Earth juice ph up.
Water with aerated Super Plant tonic/roots organic trinity (bubbled for 24hrs) once a week.
Plants are recieving ~155ppms or N when fed
Feeding at 600ppms.
Sir KK
TheChemist77
Well-Known Member
my mistake!! anyways now that u have transplanted them to bigger bucket it may take a week for growth to go back to normal..hope it all works out
Kush Killington
Well-Known Member
Thanks! Guess i shudve waited b4 makin this thread fo them to atleast recovery past the transplant.
Sir KK
TheChemist77
Well-Known Member
never heard of the 12/1 light cycle,,hows that work?? 12 light 1 dark,,how u get that on a 24 hour timer??
JohnySmith1
Well-Known Member
Leaves yellowing from the centre (not from the tips) iron deficiency. Very rare but happens. You need to buy some micro nutrients
Kush Killington
Well-Known Member
Plants veg 12on, 5.5off, 1on, 5.5 off.
The one hr of light in the middle of darkness keeps them from flowering. But since they get so much darkness, they're itchin to flower. All my plants look like they're flowering lol.
Sir KK
Kush Killington
Well-Known Member
Iron huh? That wud be a first in my book. Well my nute mix is custom made. Must be missing iron from somewhere. Maybe jus need more microblast. I got azomite too but...yeah slow process for micros to eat rock. Cud make a tea outta it. Hmm...
Sir KK
JohnySmith1
Well-Known Member
If you using organic nutrients, I would go for chemical. Plant uptake chemical nuts much more efficiently, Ionic nutrients with formulex + liquid silicon is the simplest once to use and they doing a great job and cal/mag(magic plant), Problem with organic nutrients is always a big risk of fungi, mould etc. Plant does not grow as fast because it always has to wait for nutrient availability. with chem nutrients you just need to water it with ph adjusted water with out any nuts for the last two week before harvest, and buds will taste just as good as organic and it will be way more potent.
In your situation I would flush your plants with ph adjusted water, until run-off PPM is the same as your water, BTW use tap water as it has micro nutrients, such as calcium and magnesium ions, iron, boron and chlorine that is also important for plant at certain concentration.
Cold tap water is normally about 16C degrees, oxygenate water with air pump until water temp gets to 20C, that will ensure that your water is saturated with dissolved oxygen, it will reduce risk of over watering as well as it will evaporate most of the chlorine, and the chlorine that is left will be beneficial to your pant. Than check your water PPM, and adjust it to 200PPM with cal/mag, add 5ml/10L of liquid silicon, than add your Ionic nuts at about half of the recommended dose. Recommended dose is 7ml/L. You will need to add 2 ml/L of IONIC grow and same amount of bloom, adjust Ph to 6.5, when plant recover, use full recommended dose, hope that helps.
TheChemist77
Well-Known Member
couldnt that light sced cause hermies?
rob333
Well-Known Member
looks like some of my plants that had lockout when did u flush last ??
Kush Killington
Well-Known Member
Hm, in my experience no. But since ive only used this lighting on 3 crops, my perspective is limited.
I can say this thou. Its much easier to cool, less electricity spent on ac and lights, and growth has not been effected.
Sir KK