New Grower Hugo's Backyard!

[Hugo]

Thank you JM!! Will do indeed!

Caught some spots on leaf at 3rd node (this is fairly normal no? Or is it other thing completely different?):

 

[Hugo]

Oh I did allready! I find this post extremely important and I get back to it several times when I have a doubt. I also use Jorge Cervantes "Horticulture Marijuana Medicinal Indoor/Outdoor Growers Bible" that I find extreme value in.
I'm a lil newb so I'm not as confident to identify the problems and solutions, mostly theoretical you know

you should have a read through this when you get the time... will really help you recognize and diagnose issues... :
https://www.autoflower.org/f7/basic-deficiencies-list-11.html

 

[JM]

yeah that looks like part of the potassium / phosphorus / magnesium def.... should be ok.... early stages... good catch... :thumbs: :clap:

 

[Hugo]

Thank you JM! On point!

I'm such a newb!!

I was doing my mix and corrected the pH to 6.0 before adding ingredients.
Then I added Biobloom, Bio heaven and Fulvic and Humic acids.
Now the pH is between 4.0 or 5.0 DUHHH!

Now I'm aerating the mix and waiting the pH to rise!!! DUHHH!!

 

[JM]

lol... it takes a little gettin used to sometimes...

no worries mate... you'll dial in... :smokebuds:

 

[Hugo]

I guess

Just ordered my electronic ph meter from ozone for the good price of £13,49. So that is that!

Today the symptoms had reached both the leafs at the second node. I also noticed something I had seen a few weeks ago and never bothered: this redening of the main stem (pic bellow). Is this normal in some species or is it a symptom aswell?



How long till I can see a difference? Will the stem regain a green colour?

Thank you all !

 

[JM]

stem color is no big deal some strins go full red or purple or whatever... leaves usually indicate health.... should show recover on NEW leaves in a day or 2 or even 3 or 4....

 

[Hugo]

Things are escalating.

Tip burn reaches 3rd node leafs now and is starting to burn the blades at 2nd node leafs.
At 1st node leafs things escalated so that I was forced to remove one of those old leafs. Some discoloring to pale green happening there aswell.

New shoots are healthy though JM!

I discarded the tip burning as nute burn because of burn colour. Now not so more. Since N is present in ureic form with FertiActyl GZ, thus having a slow realease (FertiActyl is supposed to last for 2 weeks between every feed) I'm thinking it might be that. Not sure.

I don't know how to flush if that's what I'm supposed to do. How many Liters should I use for 30l pot? Is tap water with hose (ph7.8 to 8.5) directly on pot ok? Should I restablish some micro or macro nutes after flush and how to do it?

 

[JM]

ph adjust your tap water (vinegar for down or ph down if you have it... figure about 5ml per gallon to go down 1 ph roughly... )

then flush 2-3 X the pot volume... so 30L x 2 = 60L of water.....

then run a normal strength feed after or even a hair weak as there may still be some residual...

bottom one looks good... is that the same plant?

if you were to flush with that high ph water you'd cause a lockout and further issues... juft FYI

 

[Hugo]

Yes it is.

That is alot of water!

Just learned there's different symptoms for nitrogen toxicity if it's in ammonium different than regular N toxicity:

Toxicity symptoms (ammonium): Roots turn brown and appear unhealthy, with necrotic root tips; plant growth is decreased; necrotic lesions occur on stems and leaves; vascular browning often occurs in stems and roots; severe chlorosis and stunting of new leaves are symptoms on some plants.

So, although I haven't found it yet, there must also be some different symptoms for ureic toxicity.