Mag. def or Nute burn?

S

SOURD777

Active Member
Please dont flame as this is my first real grow.
My plants been doing fine in vegging but always 3~5 weeks into flowering i start getting this happen to some of my plants.

Mostly kush family turns all messed up and AK48 and the Jock Horror does pretty good.

Any advice would be lovely.!:bigjoint:

PROBLEM SICK PLANTS






NOT SICK PLANTS



RESULT FIRST JOCK NOT SICK HARVEST 9-10 WEEKS CLONE FROM TOPPING PART

 
BuddhaBud

BuddhaBud

Well-Known Member
not really an expert, but that looks like a magnesium deficiency to me - "Lower leaves yellow and may even turn white while veins remain dark green. Blades die and curl upward" - thats what the chart i use said at least
do you flush your plants, or ever use half strength nutes? it could be a lockout of mg from too much of something else
maybe start with watering with only water, no nutes, and add some source of magnesium
 
BuddhaBud

BuddhaBud

Well-Known Member
actually now that i look again, and your other strains dont experience this, so well if u treat them all the same with the nutes then its probably not a nute burn, just magnesium deficiency
still, in case its because of a lockout start watering with just water until you see new healthy growth
is the current growth stunted at all?
:peace:
 
S

SOURD777

Active Member
Growth isnt stunted and i flushed the worse plant and watering only water for the rest.
The growth is still there but as days go it turns all good.

I recently harvested a G13 which had same problems but harvested at the advertised 8 weeks and it was really potent but buds werent HUGE like expected.
 
BuddhaBud

BuddhaBud

Well-Known Member
i would say just make sure to use half-strength nutes every so often in the future, and this may prevent whatever buildup is causing the lockout - or, a nute type switch
what nutes are you using now, what npk ratio?
 
S

SOURD777

Active Member
Using only beatie blooms for mid flowering rite now.

I normally use veg nutes fox trio and have no problems.
Than i use open seseme for first 2~3 weeks than change to only beastie blooms for 2~3 more weeks than cha ching for last few weeks and 10 days flush with only water.
 
supertank

supertank

Active Member
SOURD777 said:
Using only beatie blooms for mid flowering rite now.

I normally use veg nutes fox trio and have no problems.
Than i use open seseme for first 2~3 weeks than change to only beastie blooms for 2~3 more weeks than cha ching for last few weeks and 10 days flush with only water.
Click to expand...


ar you growing in coco?
super:leaf:
 
indyman

indyman

Active Member
I grow kush and i'm in week 2 of flr on this grow and my shit looks great,and i just use mex bat gauno to veg and i use 1 week into flowering and then i will use fox farms tiger bloom week 2 and every other water till 7-10 days before i harv and never have that prob.
 
supertank

supertank

Active Member
depending on soil some with coco fiber in them are deceving the coco holds a shit load of water / nuts and can waterlog ezy. despite what others say.
i use a mix that has coco and only give them 1.1/2 lt evry 2 days. im in 10 lt buckits
also that much water stops o2 at the roots bringing rot and burnt leaves.
super
 
whatapothead

whatapothead

Well-Known Member
its not overwatering.... you would have seen big time drooping before this comes on.

i am having the same issues in hydro and i'm leaning toward mag lockout .... i was running too high of ppm.

first i would flush them with straight ph'd water and then i would get some cal mag and give a dose of that or go to walmart and get epsom salts grind it up at 1 tablespoon per gallon

remove dead parts of leaves and then watch to see if it continues to spread.
 
S

SOURD777

Active Member
flushed today and giving only water now.

How come my tapoff water is in the 200ppm? With nothing in it and sitting put for 2 days.
 
whatapothead

whatapothead

Well-Known Member
no its ok for the plants it has things in it the plant needs... if you have an RO unit that brings ppm to nero 0 then you need to add a micro nute to the water so the plant gets them still.
 
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