Magnesium Difficency?

[razzapiggy]

What ya think? It's not really effecting alot of the plants, but the leaves that are effected are in the middle of the plant, not at the top which has me a bit confused.

I have recently added a bunch of fans so I thought the few that were effected was possibly wind burn, but a few more have shown up with a few odd signs...

Had a friend say it looked like mold, I personally don't think that's the case at all.

Using SuperNatural Bloom
pH 5.7-6.0
Medium SunShine#4

They are three weeks into bloom. I will post a few bud shots later on too. They look pretty healthy other than this.

razzapiggy Reviewed by razzapiggy on 09-30-2007. Magnesium Difficency? What ya think? It's not really effecting alot of the plants, but the leaves that are effected are in the middle of the plant, not at the top which has me a bit confused. I have recently added a bunch of fans so I thought the few that were effected was possibly wind burn, but a few more have shown up with a few odd signs... Had a friend say it looked like mold, I personally don't think that's the case at all. Using SuperNatural Bloom pH 5.7-6.0 Medium SunShine#4 Rating: 5

[razzapiggy]

P.S I have a small small small touch of nute burn, just a tiny bit of yellowing around the edges of a few plants...but this is something different. Any opinions welcome.

[amstron]

I doubt its mold. It could be pottasium deficiency as the yellowing seems to be moving from the leaves edges in. Could be magnesium...often in magnesium defficiency the leaf edges curl upwards. If it was a nitrogen deficiency, I'd expect the lower leaves to be yellowing. Have a look at the FAQ's, theres loads of info there

[razzapiggy]

Someone on another site said it looks like nute burn. Why would so few of the plants be effected if it was indeed nute burn? I have looked at the FAQ and various sick plant ID sites, and narrowed the things down it could be. Asking for the opinion of a few vets.

[ProGroWannabe]

I wish I could help, but at least me posting will bump your thread up. I'm trying to learn deficiencies and symptoms right now too. Good Luck!

[razzapiggy]

Is it nute burn?

[stinkyattic]

No, your pH is way too low and you are locked out. Flush with pH 7 to bring it up to the 6.5-6.8 range and give a final flush with a complete fert. I see primarily the symptoms of Ca lockout but that isn't the only thing you have going on there.

[Opie Yutts]

dirt PH: 6.8
hydro PH: 5.5

[razzapiggy]

How am I way too low on my Ph? I thought Soil-Less growing mediums like it around 5.5? Stinky... I did give them nothing but water for a few feedings but I can still seeing a bit of the browning and yellowing...not a ton. What should I do?

[Opie Yutts]

How am I way too low on my Ph? I thought Soil-Less growing mediums like it around 5.5? Stinky... I did give them nothing but water for a few feedings but I can still seeing a bit of the browning and yellowing...not a ton. What should I do?

Your PH is too high.
Using SuperNatural Bloom
pH 5.7-6.0
Medium SunShine#4

5.5 is what you want, but watch out, plants don't like PH fluctuations either. Change slowly.