Help!!! Got 6 plants from friend!!!! Bottom Leaves Yellowing

[edelephant]

Hi All,

I got these six plants from a friend. He had them in a Styrofoam cup for a month and they were looking scrawny. Ive had them for two weeks now under a 400 W MH and transplanted them to bigger pots with 50/50 promix/perlite mix. I am using the full line of Advanced Nutrient Organic Nutes. The first two weeks I fed once a week with the Nutes at around 75% strength. Daytime Temps are from 77 to 78.9 degrees and Night time temps are 75 farenheit. Humidity stays constant around 58%.

Only two of the six are giving me any problems and I cant seem to get what these two need. They are all the same genetics (some sort of NL variety). Here are some pictures.

First Plant






Second Plant








Hope that gives a detailed description.

Thanks for the assistance.

 

[stealthpackage]

I'm not the utmost authority on this, but that looks quite a lot like a Nitrogen deficiency. I just wanted to throw in my change, but you should wait for other opinions before you do anything.

 

[Ganja Guerrilla]

mag. def.

get some cal mag or 1 tablespoon epsom salts to 1 gal of water and flush

 

[edelephant]

58 views and only 2 posts?


Can anybody help me out with some feedback?!?!?!??

 

[dizzy44]

Im almost positive its nute burn on those two..As for that check out the thread below


http://www.icmag.com/ic/showthread.php?t=11688

 

[Verite]

You have ph issues and nute problems. You wont solve your nute problems until you get your ph in control.

 

[edelephant]

Thats what I thought Verite,

I checked both pH's in various locations in the pot and they all dial in exactly at 7.0....I think I am having problems because these are unknown plants to me and have NO clue what Nute regimen to put them on. I might have to flush them for a few days and go 25% Nute regimen.

How does this sound????



Another odd thing is that the other plants dealt fine with the same nute regimen....I think my friend might not know what he is talking about...

 

[Litz_C]

better hope for nute problem, few week ago i got one plant extractly looks like that.

And few day later the problem haven't solve and discover the stern was disconnect to the root and died for couple days.

hope it a nute problem...

 

[Verite]

Sounds like your using one of those bi-metal probe things for ph testing and they really dont work as accurate as you need them to. 7.0 is still a bit high. You should be shooting for 6.2-6.5

I would avoid feeding them and let them dry the medium its in since it looks a little on the water heavy side and the roots cant traverse wet soil as well as moist soil.

 

[Closet Funk]

Those plants need some food. I see maybe N and Mg and maybe K deficiencies, but like Verite said if you have a messed up PH there is no point in feeding.

 

[Max21]

PH is directly linked to feeding, plants don't absord nutrients as easily at 7.0 as at 6.2..
About the problem related to this thread, I see some overwatering going on,
probably due to the big size of the containers, as compared to the plants size...
Grower, you should let your plants drink before watering again, especially in those relatively big containers...
They're probably fucked up already, since overwatering is most often deadly to our beloved plants...

 

[edelephant]

What is the easiest way to lower the pH of my soil already in the container? I know I could use lemon juice mixed with water but was wondering if this would be a permanent solution to my soil pH problems????? The person I talked to didn't put dolomite lime in the soil mix and I think this is where the problem began...

 

[Max21]

dolomite lime is a great ingredient ;
as you know, it buffers pH about 6.5-7.0, which is perfect ;
You may use some pH Down (like phosphoric acid "PH-" by Bio Nova) to mix with your water and get 6.0 water... If your plants
Lemon juice is not recommended, since it contains many other ingredient that may be harfull.. Citric acid, when isolated and prepared by a fertilizer brand (Hesi, I guess) may be used as a pH down product, it doesn't release phosphorous.

apart from that, whe you water, wait until the container weighs like a feather, to be sure your plants are thursty before you water again.. As someone said in aniother thread, "Dry is better than wet", for cannabis.
Good luck

 

[sproutco]

I checked both pH's in various locations in the pot and they all dial in exactly at 7.0....

Ph in soilless mix should be 5.6 to 6.2 After adding ferts to your water, you should adjust the ph by adding an acid or base. In your case, you will probably be adding an acid. You can check the links in my signature on how to test ph and possible acids to use.

 

[AlwaysLearning]

Hello, I am sorry to hear you are having these problems. By looking at the pictures first, I noticed that those plants looked very similar to a strain I have, NL#5XHaze. Your leaf petals are thinner so you have a more hazier variety. your plants have 2 major problems. 1, NL prefers more soil to perlite, your 50/50 mix is a bit much, I would have 75%dirt. There may be some ph problems, but look at the purple stem. To some degree this is a trait of the NL, but in this case it is Phosphorous deficiencey, I would correct that because it will help with roots. One final thought on what you could also add to the soil is some worm castings. The texture is similar to dirt, and it provides small amounts of food. Oh yes also those seem to have too much water, wait until they dry almost to the point of wilting to water again. I hope this is helpful

-Always Learning

 

[dre86]

mag. def.

get some cal mag or 1 tablespoon epsom salts to 1 gal of water and flush

Yep the yellow tips but inner green leaves look magnesium defficient.....check pH / EC of the soil. And I would stop ferting for a while. Good luck!