Yellowing/Browning Problem from tips (Organically grown)

[merrblah]

Here's what i know:

- 4 weeks into 12/12
- Grown in organic soil bed, problem is only effecting one strain, all other plants in same bed are fine, showing no problems.
- Watered with 48hr bubbled tap water, 6.0 pH
- temps at 79F at canopy, good air circulation
- plants are SCROGGed but stress does not seem to be a factor.
- 4 teas applied over lifespan, teas brewed with guano and worm castings
- soil mix [promix, perlite, blood meal, bone meal, dolamite lime, worm castings]
- additives: liquid karma, hygrozyme, maxicrop kelp, molasses

- THey have recieved nothing but water for the last week.
- I just added Cal.Mg tonight AFTER photos were taken.










PLease let me know what's going on with my girls. More grow pics/info at "Blueberry/Grimace Organic SCROG" link below. Thank you.

-meeerrrrrrrr

 

[Dman619]

It looks like a mag. def. to me, I think the cal/mag will help. If not then it is something else, are the plants that are like this near each other in the bed?

 

[MEDUSA]

UP Ph to 6.5-6.6 in soil if you are just watering. 6 seems a tad low for flowering. The orange splotches are a dead give away. Small rust spots are cal/mag. Your P, Ca, Mg is not being absorbed by plant at 6.0.

MED/USA

 

[merrblah]

Dman619 - the plants are all about 6-8" apart in the bed. strains are scattered throughout and only one strain is being effected.

MEDUSA - So I'm lookin to water with 6.5 pH?

I checked on them last night and the problem is not spreading. I think the CalMg helped out, but I will try watering tonight with a slightly higher pH. Thank you for all of the help and speedy responses. I think my girls are going to make it.

- merrrrr!!!

 

[stinkyattic]

Doesn't look like Mg def but DOES look like Cal def. Sounds like your strain is a Ca hog; otherwise it looks healthy.
You should be fine now that you have dosed with calmag. BTW your water pH is indeed a bit low. And the bubbling doesn't do much- it won't remove the chloramine. You need a charcoal filter for that.