Midflower problems

darkliight

darkliight

Member
Hello everyone! It has been awhile since I have posted, but that doesn't mean I haven't been busy.

Currently, I am growing 2 plants (Power Kush & Skunk #1) under a 400W MH/HPS lamp, in a 4' x 4' x 7' tent. The average temperature in the tent is 78F, and the average humidity is 30% (although I noticed today it had dipped down below 25%)

I am in Week 3 of flowering (Week 12 overall) and I am having some issues mainly with my Power Kush, which I will address first.

My soil composition is a mixture of FFOF and coco coir for added water retainment (about 80/20) in 6 gallon containers. I just transferred the plants recently from their 4 gallon homes to larger 6 gallon ones, and flushed the soil because I began to notice some slight yellowing starting. I use standard FF nutrients except diluted, 1 tsp/gal of both Tiger Bloom and Big Bloom.

Power Kush Symptoms: Yellowing and brown spotting on middle leaves starting at the tips and spreading. It seems to be moving up toward newer growth. It is currently affecting fan leaves about 5-6 internodes down from the top of the cola. Also I am getting some yellowing on some undergrowth as well.

Power Kush Pictures:

1130121421a.jpg Leaf #1 1130121421.jpg Leaf #2 1130121410.jpg Leaf #31130121410a.jpg Overhead view 1130121412.jpg Full view




​
As far as the issues that are afflicting my Skunk #1, I think it may be caused by low humidity, but I'll share a picture with you guys and get your opinions.

Skunk #1 Picture:

1130121420.jpg Strange malady​
 
darkliight

darkliight

Member
Also, my pH levels are:

Power Kush: 6.7

Skunk #1: 6.9

Also, the dark color of the Skunk leaf also makes me think about N overdose.

Thanks for your help guys!
 
darkliight

darkliight

Member
Kinda disappointed, RUI.

Almost 100 views and no one has any opinion on the PK issue? If anyone needs any more info on the plants let me know.
 
darkliight

darkliight

Member
I have not. Is there a specific pH level that the plant should be in during flowering? I assumed 6.3 - 6.8 was optimal.
 
indikat

indikat

Well-Known Member
the pH is optimal as you say. Do you have any thoughts as to why the N levels are so high? everything else seems good with temps etc
 
THC&STDs4All

THC&STDs4All

Active Member
idk man, FFoF is really rich and your leaves have an abundance of N. '
possibly you had slight burn and the flush just released more nutes.
Someone told me with FFoF I should water heavy but not very often - letting the soil complete dry out before rewatering.
Is it possible that you plants dont need any nutes yet and your just adding wood to the fire. let it dry out. as far the humidity, ive woken up to my humidity at 16% during flowering (humidifier ran out of water) and not had my leaves look like that. 30% is fine.
have your leaves touched the light?
did you put dolomite lime in the soil?
FFoF contains no Ca or Mg however Tiger Bloom does have Mg. I always throw a little bit of epsom salts in every water, not a lot just have a teaspoon or something. only more if i see a need for it.
 
darkliight

darkliight

Member
After a lot of research, and lot of leaf comparisons, I believe that I am experiencing a Cal-Mag deficiency. The affected leaves are not veining when chlorosis starts which points me towards a magnesium def. I attribute the browning to the calcium def. Also, the stems show a deep red/purple color which is indicative of a Cal-Mag deficiency.

Thanks for all of your help guys, I will treat with CalMag tomorrow and will update on their status.
 
inhaleindica

inhaleindica

Well-Known Member
darkliight said:
Hello everyone! It has been awhile since I have posted, but that doesn't mean I haven't been busy.

Currently, I am growing 2 plants (Power Kush & Skunk #1) under a 400W MH/HPS lamp, in a 4' x 4' x 7' tent. The average temperature in the tent is 78F, and the average humidity is 30% (although I noticed today it had dipped down below 25%)

I am in Week 3 of flowering (Week 12 overall) and I am having some issues mainly with my Power Kush, which I will address first.

My soil composition is a mixture of FFOF and coco coir for added water retainment (about 80/20) in 6 gallon containers. I just transferred the plants recently from their 4 gallon homes to larger 6 gallon ones, and flushed the soil because I began to notice some slight yellowing starting. I use standard FF nutrients except diluted, 1 tsp/gal of both Tiger Bloom and Big Bloom.

Power Kush Symptoms: Yellowing and brown spotting on middle leaves starting at the tips and spreading. It seems to be moving up toward newer growth. It is currently affecting fan leaves about 5-6 internodes down from the top of the cola. Also I am getting some yellowing on some undergrowth as well.

Power Kush Pictures:

View attachment 2425627 Leaf #1 View attachment 2425628 Leaf #2 View attachment 2425629 Leaf #3View attachment 2425630 Overhead view View attachment 2425635 Full view




​
As far as the issues that are afflicting my Skunk #1, I think it may be caused by low humidity, but I'll share a picture with you guys and get your opinions.

Skunk #1 Picture:

View attachment 2425634 Strange malady​
Click to expand...
You have potassium deficiency. Reduce the N slightly, only slightly. Add more potassium and a bit more cal-mag
 
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