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plant yellowing only on one side

hish

New member
What s wrong??

It started yellowing after I flushed and added nutes
 

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_Dude

Member
Just speculating here because my knowledge of deficiencies is zero (I feed my plants Lucas formula at 1100-1200 PPM and they stay green so what do I care?).

Is the yellowing starting closer to the light? If so you might be burning/bleaching her. If it's something to do with nutes, I'd think you'd see the problem spreading throughout the plant. If it stays where the light is most intense, it's probably burn/bleach.

On second look it seems like there's a specific pattern to the yellowing, rather than an overall effect? If so then that's obviously a nute thing, not light.

I had three plants start yellowing on me recently. At first I thought it was burn/bleach, but as time passed it became obvious that it was these three plants only, and I realized they were the only ones that weren't in net pots. They were root-bound and starving so I transplanted them and hopefully they'll bounce all the way back by harvest time.

Good luck.
 

hish

New member
Hey Dude

I was thinking it might be that and you might have confirmed it because it s the side that directly to the light but there s always 30cm from the closest leaves... and the temp 30cm straight down from the bulb is around 26°C max

Anyway, will it heal if it s light burn what can I do at this stage (4weeks into flower)?
 

_Dude

Member
On second look it seems like there's a specific pattern to the yellowing, rather than an overall effect? If so then that's obviously a nute thing, not light.
I didn't express myself well there. What I meant was, a specific pattern on the leaves, like banding. That's obviously nute def. But I couldn't tell from the pic if that was the case, or my eyes playing tricks.

Yeah if it's closer to the light and it doesn't eventually spread throughout the plant, it's your light. Back it off a bit. Every inch makes a difference, so keep careful track of where you put it, for future reference.
 

_Dude

Member
Oh, and if you give me those numbers in Imperial format (metric is Greek to me), and tell me a bit about your light (watts, if it has a hood and if so, if it's air-cooled), I can maybe give you a better recommendation.
 

_Dude

Member
Or, you might try rotating your plant, since you only have the one (guessing?) and it wouldn't cost you much labor. I'd be more specific about a rotation regimen but I've never gotten into that.
 

_Dude

Member
Damn, that's odd. I veg under 400w MHs and put them closer than 1'. I suppose it's different in flower, never used 400w lamps for anything besides veg. Maybe you should read up on turning your plant. Wild guess, I'd start with turning 180 degrees halfway through flower period each day.
 

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