Yellowing of new growth on seedlings 9 days old please help

T

tttttt

Active Member
They are fine, when it gets stressed and goes yellow, that shit will always be there. the new growth looks healthy so relax and roll one up
 
S

supersuby

Active Member
Update......
For those of you who may have had similar problems or run into this down, 2 days ago i decided to dim the ballast on my 400 watt MH light to 50%, and i changed some venting around to help raise humidity because humidity was lower then i though when the lights are on. RH was as low as 20%. So dimming the ballast and changing the vent i lowered temps from around 80-82 degrees with lights on, down to 75 degrees. Humidity went from 20% to 25% with lights on up to 60% now. And Temps drop to 65 degrees and humidity stays almost exactly the same with lights off :)
I must say things are looking alot better and i am very positive about things now!
I will post some pics.....
Thanks for all your help, hopefully i can help others at some point too.....
 
S

supersuby

Active Member
I made on big mixture so the recipe in the start of the thread was all mixed at once then divided into the pots they are in now plus i had a bit left over.
Thanks MAPS84, glad you think they are looking better as well and i will take a few more pics in a couple days and keep everyone posted :)
Thanks again everyone!
 
S

supersuby

Active Member
Here is another update with pics..... they are looking a bit worse again now but they are still growing so thats good. After taking the pics i transplanted into 3 gal buckets because there are roots growing out of the bottom and have been for several days. Not alot, but enough to make me think they need bigger pots. Question: should they be watered right after transplanting? The soil is pretty moist so i figured they would be ok for a bit. Anyways, let me know what you think about how they look now and anything i could try to improve the situation. Also not sure if i mentioned this but all the pics i have posted are just the one plant..... the others are doing better but have some slight yellowing also.
Thanks!SANY0020.jpgSANY0016.jpgSANY0018.jpg
 
maps84

maps84

Well-Known Member
They're growing now, keep the watering steady, when repotting make sure to lime the soil as well, damaged leaves will keep looking so, so what you care is that the newer growth doesn't show the same symptoms.
 
S

supersuby

Active Member
The soil mixture is about 1/5 perlite, 4/5 Fox Farm Ocean Forest, and then 1TBS of garden lime for each gallon of the mixture. I think they needed to be transplanted for a bit now and i'm hoping they will take off in the new soil with way more room for their roots :) I will post pics again in a few days and get your input and go from there. For now they will be just getting water and i will see how it goes.....
Thanks!
 
S

supersuby

Active Member
I just want add a quick update...... the plant's new growth is still very yellow and almost white. It is also growing narrow leaves. I will post a few pics tonight i got a few things to do today so i wont have time till later. In the mean time if anyone has some input i am all ears!
Thanks
 
maps84

maps84

Well-Known Member
Ok that's a confirmed Fe deficiency, it's caused by over watering, pests nematodes, not enough drainage, like not enough perlite. High ph, Soils with low iron, high Phosphorus levels, too much Zinc, manganese or copper. Foliar feeding with rusty water is a good idea, also Any Chemical/Organic nutrients that have potassium in them will fix a Iron deficiency. Other supplements that have Iron in them are: Iron chelates, Ferric oxide, Ferrous oxide, Ferrous sulfate, all of these are fast absorption.
 
S

supersuby

Active Member
I was gonna try foliar feeding with epsom salt tonight after lights out..... but i do have chelated iron from the last attempt when i had the same problem. What ya think.... Epsom or chelated iron? Was gonna try on just the one plant since its the worst.
Also i have neem really good about not over watering this time around since i thought that may have been one of my issues last time. Using Fox Farm Ocean Forest i didn't think i would have as many problems. Anyways let me know and i will try which ever you suggest and see if it helps.
Thanks a ton man this is stressing me out!
 
S

supersuby

Active Member
i tried foliar feeding one plant with water mixed with epsom salt and one plant with water mixed with less then quarter strength chelated iron last night. Neither of the plants looks much better but if i had to choose i would say the on e with iron looks less pale. I will do this for a couple more days and post results. So if it is Iron Def then how do i go about correcting?
Thanks
 
D

DRGREENTHUMB!

Member
SYMPTOMS
N
P
K
Ca
S
Mg
Fe
Mn
B
Mb
Zn
Cu
Over Fert.
Yellow Upper Leaves
No
No
No
No
Yes
No
Yes
No
No
No
No
No
No
Yellow Middle Leaves
No
No
No
No
No
No
No
No
No
Yes
No
No
No
Yellow Lower Leaves
Yes
Yes
Yes
No
No
Yes
No
No
No
No
No
No
No
Red Stems
Yes
Yes
Yes
No
No
Yes
No
No
No
No
No
No
No
Necrosis
No
No
Yes
No
No
Yes
No
Yes
Yes
No
No
Yes
No
Spots
No
No
No
No
No
No
No
Yes
No
No
No
No
No
Growing Shoots Die
No
No
No
No
No
No
No
No
Yes
No
No
No
No
White Leaf Tips
No
No
No
No
No
Yes
No
No
No
No
Yes
No
No
Stunted Growth
Yes
Yes
No
Yes
No
No
No
No
No
No
No
No
No
Deformed New Growth
No
Yes
No
No
No
No
No
No
No
No
No
No
No
Yellow Tips
No
No
No
No
No
No
No
No
No
No
No
No
Yes
Twisted Growth
No
No
No
No
No
No
No
No
Yes
No
No
No
No
 
S

supersuby

Active Member
Thanks for the chart DRGREENTHUMB..... It does appear as though the foliar feeding with Iron is helping a bit. But how do i go about finding the source of the problem and correcting it?? I have been reading the 2 books i have cover to cover and researching on this forum for a month now and can figure this out. If you where in my situation what would you do to correct this?
Thanks!
 
S

supersuby

Active Member
So if this is a PH problem of the soil how do i correct? I thought adding lime was suppose to help the soil "Buffer" the PH of the water used. I have been PHing the water to 6.7 to 6.8 regardless of the fact i added lime this time but i am having the same problem. If i lower the water PH will that help lower the soil PH? I have to do something and i don't know what. For now i will continue to foliar feed with the chelated iron added to the water but i don't believe this is a long term solution. Anyone with some ideas please let me know what ya think.
 
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