Hasn’t gotten drier has it with the warmth? That’ll lower humidity and cause them to drink more.
It might just be sensitive to N. If no intense air movement your light may be a bit strong for that phenotype. Each plant is unique unless it’s a clone..
Ah Kk, was wondering cause if it was really dry you can up the humidity to make them transpire less.
I’d try lowering the amount of wind on them and reduce feed and monitor!
To be honest it’s not a bad N tox. Just slightly over her limit. I wouldn’t do anything too drastic and just watch new growth to see if it gets worse/stops. Still got some flowering left to sort it out!
How is the humidity in the tent?
There are salts in organic nutrients. It’s just they need to be broken down by microbes before being available. Salt based feeds are immediately available!
I’m not a no till expert but you may need to research on how to get excess nutrients/salts out of your soil
Have you used the soil multiple times? Looks like salts are accumulating. A sign is that the leaves curl like that instead of being flat.
You might be a bit enthusiastic with your feeding habits
Is the other plant a clone or different strain? Each will have their limits for N tox.
Luckily N is the easiest to solve as it’s very soluble and can be washed out or not given so it uses up what’s in the media
Any strong air movement on the tops? That’ll cause increased transpiration and cause local N tox.
Leaves don’t become flat ime just need to watch the rest of the sugar leaves to see if they are still curling
Hmm. It’s a tricky one from those pics. You got any pics before it spread so much?
Brunt crispy tips like that is excess P usually.
Do you need calmag for your water source?
Well I use it cause I need to.
If I moved house to hard water I would not use it unless the plants asked for it!
Then if they showed signs of a cal/maf deficiency I’d start at 0.5ml per 1L and work my way up to 1ml if needs be.
It’s best to give less not more with plants
It’s a great calmag as it has a complete trace element profile too!
It really depends on your water source. I have soft water (38ppm) and need to use 0.5ml per 1L until early flower then 1ml per 1L until last 2 weeks of flowering.
Have you had any issues in the past with calcium or magnesium?
Must be fairly dry to run photoperiods if they start to flower in September?
In Scotland here and the humidity is the biggest threat to any harvest. I’ve had best luck with purple strains for mold resistance
1. Open tent
2. Bend down
3. Place hands on pot
4. Lift pot
5. Feel pot
6. Tilt pot
7. Feel bottom of pot for moisture
If it’s heavy then it’s water logged. I know it’s a taboo but those cheap moisture meters do give an accurate moisture reading. They can help you get a gist of what’s going...