First grow outdoors - help in leaves disease diagnostic

[Growbabba]

Hey guys ? This is my first normal grow outdoors(did only autoflower up till now)
I grow in the Middle East.
The plant was seeded on May 12th and was graduitly moved into 30l airpot and started LSTing the plant.
Since this is my first time LSTing I did not secure the stem and now it's pretty bent , but that's ok.

Lately , after I took some clones from it(4 in general) , I started having problems with some of my fan leaves , to me it looks like a potassium deficiency , but I am not sure.
Here are some pics , please help a fellow grower out
http://tinypic.com/r/2bxw1t/8
http://tinypic.com/r/2exv5uq/8
http://tinypic.com/r/16l0ayu/8
http://tinypic.com/r/15pr6l1/8
http://tinypic.com/r/2hdyuxh/8

 

[Growbabba]

A little detail I forgot to mention , I have been feeding the plant with Bio-Grow and Unblananced tap water. from now on I will use PH balanced water only.

A friend of mine who is a grower for quite some time told me(after seeing the pics ofcourse) that it is most likely overfeeding than a potassium deficiency , and he recommended i flushed the plant with PH balanced water untill the drops coming from the pot are clear. I did so. I was wondering what is looks to you guys as I think its a deficiency , but my friend who has more expreience than from me thinks its overfeeding...

 

[Growbabba]

Here are the pics on a regular post , couldn't find a way to edit my old one.

 

[grow nerd]

Nice toes.

 

[CoastalKind]

I don't think that's nutrient burn. You see how it's turning yellow and then the yellow part gets old and just dies and turns brown and crispy later, on the older fan leaves, but the new growth tips seem to have some vigor? That's a deficiency. I think your diagnoses is pretty spot on about potassium, I have sand for soil where I live and get this problem in my pumpkins and squash when i don't amend the soil. You need to rectify it or the plants will struggle when they try to set fruit, whatever the fruits may be. I wouldn't worry too much about the ph of your water when growing in soil. It is strange though because i just looked up the nutrient composition of bio-thrive grow from general hydro and at 4-3-3 and all those micro nutes your plants should be doing better. The only thing that pops out at me that cannabis needs a lot of that isn't in that stuff is calcium. If you have flushed your medium already I would feed them again with a light feeding of your bio-thrive grow and some calcium too, wait a couple of days and call me in the morning.

 

[Growbabba]

Hey CoastalKind and thanks for the comment.
I have flushed the pot yesterday using 50l of ph balanced PH water(i know it's not enough but I didn't want to overdo it since the plant is so young)
As you said , I also thought it was a deficiency , and the sympotms you're describing seems about right.. some of the new growth is showing the same signs(turning yello gets old and dies)
I am pretty lost here , since the pot is still wet from flushing it , how am i supposed to feed it without it being too concentrated? (I won't want to add alot of water)
The NPK ratio on the Bio Bizz Grow is 4-3-6 so I really don't see a reason for a potassium deficiency...
I took some pictures today , ill get them from my phone and post them here.

 

[SirStynkalot]

I think your experienced friend called it. He was thinking it was lockout. Causes deficiencies and toxicities depending on what's locking out what and why. It's usually a good guess with untested tap water.

When it comes to feeding less is usually better. I use about 1/2 strength going by the back of most bottles and feed to 10% runoff every time.

 

[Dreambig]

What kind of soil are you using?

 

[CoastalKind]

I was just looking up bio bizz grow on the internet and I couldn't find a pdf of there label so that I know exactly what is in it. So this company instantly loses credit with me for that. I don't know what micro nutrients are in the bio bizz grow or what concentration they occur at. I would just use the bio bizz grow at the recommended rate, which is probably something like 1 tablespoon per gallon once a week to every other week in soil. Always dilute the proper amount of your fertilizer into the proper amount of water. This requires measuring but it isn't rocket science. Get a calcium magnesium supplement too or maybe some sea kelp extract to help take care of the micro nutrients since i have no idea if bio bizz has magnesium or calcium in it after looking on the internet, which is ridiculous to me that they don't have that information readily available., I know I won't ever buy there product. Just go buy a bag of composted chicken manure for 5$ and put a half inch of that shit on the top of the soil once a week until it starts to bloom if you ask me my personal opinion, that will provide it with some nice organic nutrients. Also Epsom salt at a rate of 1 tablespoon per gallon sprayed on the leaves with a mister in the early morning is an old gardeners trick for healthier growth. It provides sulfur and magnesium directly to the leaves for fast uptake of the nutrients.

 

[Growbabba]

Hey thanks for all the comments guys.
I forgot to mention , I am growing in coco\perlite mix from my local hydro store.
After flushing I fed the plant today with 1\2 the bio grow (0.5ml\liter) and also added some alg-a-mic from Bio-Bizz which is seaweed(so i was told) and is supposed to help the plant absorb the nutrient better.
I water the plant every 3 days or so , it's been 3 days since i flushed , the plant seems to be recovering as the new growth is growing again..
Just a few minutes ago i watered and fed it using 5l of PH balanced water.

Any tips?
Will upload pictures of the entire grow later , from seed to whatever it is today haha

 

[Growbabba]

So I have made this nice little pic with all the stages of my plant.. you can see that from day 27 or so I began having problems , and now (day 34) I am hoping it'll all be ok.


I am growing a strain called K-Train from greenhouse seeds. it is my first time growing it , any thoughts or comments on this specific strain?

here's the pic for your refrence

 

[Growbabba]

There it is uploaded to a different server , cause it doesn't seem to work..

 

[Dreambig]

The coco/perlite mix you're growing in can be tricky if you're not using coco specific nutes. It's most likely calcium/ magnesium being locked out.
With coco mixes it's important to remember to get runoff even otherwise you get salt build up in the pot also you have to supplement a calcium source.
There's soil recipes in the organic thread that would make your life a whole lot easier for your next grows I would check it out if I were you.

 

[CoastalKind]

The coco/perlite mix you're growing in can be tricky if you're not using coco specific nutes. It's most likely calcium/ magnesium being locked out.
With coco mixes it's important to remember to get runoff even otherwise you get salt build up in the pot also you have to supplement a calcium source.
There's soil recipes in the organic thread that would make your life a whole lot easier for your next grows I would check it out if I were you.

This is good advice, next time grow in some soil, it's more forgiving. But you are where you are now so...There is are at least a few good calcium/magnesium liquid supplements out there. You could use them as a foliar spray during vegging to over come both calcium and magnesium deficiencies or just give it to the roots. Don't underestimate the benefits of foliar spraying those magnesium supplements. The kelp should have some magnesium in it but that doesn't take care of the calcium. Good luck!

 

[ssq.talker]

little nutes burning imao

 

[Mr Jay]

Ph lockout, along with coco induced cal-mag def. I don't see ANY nute burning there. I do see phos def.

 

[Growbabba]

Hey guys
It's been three days and I was away for the weekend , the plant loved the weather heat and humidity!(it was really hot here the past few days)
It just exploded and began growing like crazy , im gonna have to LST it again tomorrow. I really do think that the problem was unbalanced PH , that's what caused all the deficincies and what now. plant looking real good now.
I have 2 more question
1) should I take the dry leaves off? most of them are pretty cracky and very dry , and i think the plant is drying them out even more.. should i just trim them off?

2)Has anyone has expreince with outdoor grow in the middle east area?
When should I expect harvest? june 21st was just now so... is it gonna start flowering soon? should i keep LSTing or just let it grow tall?

 

[Growbabba]

Here is the plant now. do you think i should continue LSTing or just let it go to height? Because I didn't secure the stem at the begining I am afraif that there will be problem with airflow if i keep tieing the plant down and not let it go to height. Any suggestions?

 

[Growbabba]

Hey guys , a quick update
plant looks like this today :

I removed some of the old and dry foilage and LSTed it , that's why it looks thiner.

I still think I have a problem because the leaves look like this:

Any help guys..?

 

[CoastalKind]

Feed more. Did you ever hit them with any cal mag or epsom salt? They look they they need more food without burning them. Fuck that coco medium man, looks like a finicky pain in the ass way to grow. You need potassium and magnesium from what I can see and that means you probably need more of everything.