Am I looking at a burn or deficiency?

shmoop

shmoop

Active Member
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Abusive Og, 1 month into flowering using super soil. 1 or two of the leaves on most of the plants look like this. What normal? Burnt? Deficient? The rest of the plant seems to be healthy, but the older fan leaves are starting to do this.
 

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K, Ill pull one out of the room. Cant get a good picture in the flower room with the hps lights
 
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K, here is one of them. That might be the best I can do, Im taking the pictures on my laptop camera.
Also, these plants went straight to flower, no veg, so thats why its not real bushy
 
more info: When mixing the super soil, I only used 1 bag of soil instead of the 8 the recipe calls for. So I had to sorta wing it on some of the quantities of the ingredients. I tried to put in too little rather than too much so I hope this is a deficiency
 
Another thing. Some of the plants are a real nice shade of green, with strong stems and nice thick white flowers. Some of them are lighter green and the flowers are not as vibrant, almost yellowish with some hairs even starting to turn red or brown already. The difference in smell between the two are big. Nice sweet smell from the nice green vibrant plants and, Im afraid to say it, a sort of mildewy smell from the lighter ones.
At first I thought this was due to lack of light as the greener ones all seemed to be the ones right under the lamp. But switching them around had no effect.

More info: The space above the canopy stays around 85 degrees and about 78 down at the pots. I have fans in there blowing air around.
Im worried my intake is weak, and that maybe my air turnover is bad or something. I have a 4" 177 cfm inline fan cooling 2 lights and also acting as the intake in a 10x11x8' room. I dont know how big of a deal the air turnover is, I have heard mixed opinions.
 
They are in super soil, although when the problem started I thought it was a deficiency so I fed them about 700 ppm of 1/3 grow big and 2/3 tiger bloom. Didn't seem to help or hurt. but the problem continues on
 
1 more thing, for people who know a lot about super soil. I think I may not have wet it down well enough when cooking, so the ingredients may not have activated(which usually takes a month) when I cooked it. So is it possible that the plant is only just now receiving the nutrients from the super soil and burning?
 
I try and keep my water as close to 6.2 as I can. I have tested the water runoff and I think that was at like 6.3 or something. Although that was a while ago I could try it again
 
There is already epsom salt in there.. definitely not that much though, are you sure? per gallon of water or soil? do you top dress or dissolve in water?
 
shmoop said:
There is already epsom salt in there.. definitely not that much though, are you sure? per gallon of water or soil? do you top dress or dissolve in water?
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dissolve that epsom with your water next time you water them, works faster then top dressing the soil.. get into the habbit of scratching in some epsom when you mix your soil so its already established once your plants need em
 
Yeah thats actually the one thing I forgot to get when I first mixed the soil. I top dressed a little in later, like 1/4 tsp per plant(1 gallon pots) maybe that wasn't enough though?
Are you guys pretty sure about the magnesium deficiency?

And if so, should I wait till they need to be watered again, or give them the epsom salt immediately?
 
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