mg/sulfur ?

Don pinky · #1 (**permalink**) 09-13-2009, 05:08 AM

day time temp - 75 f
night 65 f

Sativa blue dream
1 1/2 months old from clone

1. She started showing very light green new growth starting from the base of the steam progressing to the tips.

2. There were also a few rust colored spots on the lower fan leafs - none on the new growth. - this lead me to believe it was a mg deficiency.

3. The outer edges around the newer leafs are a darker green , but most of the leaf is a light yellow/green color, a lot of discoloring is going on.

Picture 2 is what i'm worried about...it seemed like a mg deficiency but even after a cal/mg/iron supplement she seems not not be getting better.

I dont think she has been overfed but could this be because of a lockout? soil tester read around 6.5 but it is a piece of crap.

i dont want this to progress much longer any help would be greatly appreciated!!

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TexarkanaTim · #2 (**permalink**) 09-14-2009, 08:14 AM

Deficiencies of the major elements, (N,P, and K) will start at the bottom of the plant and work upwards. Micro-element deficiencies usually show at the area of new growth/shoots. I would flush the plant with clean water, let it dry out for a couple of days, and start adding nutes back at 1/3 or 1/2 strength. You should see improvement within a week or so. And be careful about over-watering. Make sure the soil is dry down about 2" inside the pot before watering.

Don pinky · #3 (**permalink**) 09-15-2009, 12:12 AM

I'm aware of the immobile/mobile nutrients and what growth area it effects.
I did flush about a week ago and no signs of it getting better.
I'm just stummped because i cant find any pics/ anywhere where people have this problem..Thats why im thinking a nutrient burn, but im really not sure

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#1 (permalink) 09-13-2009, 05:08 AM
Don pinky Registered User Join Date: Aug 2009 Posts: 11	mg/sulfur ? day time temp - 75 f night 65 f Sativa blue dream 1 1/2 months old from clone 1. She started showing very light green new growth starting from the base of the steam progressing to the tips. 2. There were also a few rust colored spots on the lower fan leafs - none on the new growth. - this lead me to believe it was a mg deficiency. 3. The outer edges around the newer leafs are a darker green , but most of the leaf is a light yellow/green color, a lot of discoloring is going on. Picture 2 is what i'm worried about...it seemed like a mg deficiency but even after a cal/mg/iron supplement she seems not not be getting better. I dont think she has been overfed but could this be because of a lockout? soil tester read around 6.5 but it is a piece of crap. i dont want this to progress much longer any help would be greatly appreciated!! [/img] [

#2 (permalink) 09-14-2009, 08:14 AM
TexarkanaTim Outlaw by Choice Join Date: Aug 2008 Location: FarNorCal Posts: 1,802	Re: mg/sulfur ? Deficiencies of the major elements, (N,P, and K) will start at the bottom of the plant and work upwards. Micro-element deficiencies usually show at the area of new growth/shoots. I would flush the plant with clean water, let it dry out for a couple of days, and start adding nutes back at 1/3 or 1/2 strength. You should see improvement within a week or so. And be careful about over-watering. Make sure the soil is dry down about 2" inside the pot before watering.

#3 (permalink) 09-15-2009, 12:12 AM
Don pinky Registered User Join Date: Aug 2009 Posts: 11	Re: mg/sulfur ? I'm aware of the immobile/mobile nutrients and what growth area it effects. I did flush about a week ago and no signs of it getting better. I'm just stummped because i cant find any pics/ anywhere where people have this problem..Thats why im thinking a nutrient burn, but im really not sure Last edited by Don pinky; 09-15-2009 at 12:23 AM.

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