Deficiency problem NEED HELP!

cassafrass

New Member
what ya guys think!? I look at the picture and it looks maybe like a phosphorous def.? Can't really tell was hoping for some help! it is from the older leaves and inside the plant leaves. Ph around 6.5 ... also I waster like this ... only water .... then next water is...... water+organic molasses .... then .... water+feed (Jacks classic, half recommend)... repeat ... also use filtered tap water
 

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az2000

Well-Known Member
Looks like normal cannibalizing of lower leaves going into the last act. The last picture (of the whole plant) looks ok, but hard to tell due to the color balance. Can you take that photo again under natural light?
 

*BUDS

Well-Known Member
Its ok but you wont want too much more yellowing and leaf loss. Causes- Crap soil ,nutes or allowing the pot to dry too much between waterings also not watering until runoff can give the plant salt burn.
 

az2000

Well-Known Member
I also thought that could be it, but it seems to becoming a little out of hand so I thought I'd ask... thanks again for your help .. here ya go
They look great. I see some yellow spots on the higher leaves. Have they been there awhile? Can't tell if that's ca or mg def. Doesn't look as round/spot as ca, but not as spread out as mg. (I'd say they look like water spots at a younger age which concentrated the light and burned the leaves.). If those few spots aren't new, I wouldn't worry about them.

I agree to some extent with @*BUDS . The die off around the bottom looks a little different than what I normally see. Mine's usually a slow and general fade like N def. Yours look a little blotchy which caused you to think P def, Mn def, etc. After I posted last night I thought about how the beginnings of salt buildup in the soil might cause what is an expected die-off of lower leaves to look like a variety of deficiencies. (Salt build up causes nute lockout and looks like underfeeding.).

What is the ppm of your runoff (and the scale of your ppm meter? If you don't know the scale, what is the brand?). You probably don't have to worry about it unless those spots on the upper leaves are new.

You could always water twice as much with half-strength nutes (compared to what you normally feed), get a lot of runoff. Wouldn't hurt to do that if you don't have salt buildup, and if you are getting salt buildup it will help.
 

cassafrass

New Member
Ppm is either 112 or 120 don't remember and don't remember brand name either (not home). I will do a good flush because you might be right about the salt build up. I think they will be OK they only have a week or 2 left, just really trying to figure out what to add to next grow so this prob. Doesn't happen again. this was a cheap soil so BUDS might be right ... think next grow I'm go with happy frog and add some bone meal and dolomite lime.
 

az2000

Well-Known Member
just really trying to figure out what to add to next grow so this prob. Doesn't happen again.
I wouldn't call it a problem, they look good. If salt buildup is involved, that's just a matter of feeding less next time (or watering for more runoff). Not a reason to change soil (expensive soil doesn't necessarily mean better). If you watch your runoff ph and ppm next time you'll see the trend toward acidification and higher ppm. (Once you dial in a soil/nute combination you don't need to waste your time monitoring runoff. But, it's real useful while dialing it in.).

You could add sidelighting if you think it has something to do with lower leaves not getting light. I like sidelighting. Turns air buds into real buds. But, you'll still get fan leaves dying off at that stage of life.
 

old shol4evr

Well-Known Member
you all are right ,but i think at this point buy looking at those buds from a distance that it close to being done and i would just use water till the end
 
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