Is this N deficiency??It's spreading quick

[FrostyTheDopeman]

Hey I have a problem this morning. I woke up to find leaves looking like this...View attachment 167905View attachment 167906View attachment 167907

they looked fine yesterday! can anyone advise on how to rectify if not N deficiency.
Help much appreciated!!

 

[Red eyed c]

Hey mate iv moved this post to the infirmary :smokebuds: could you give some info please bud,how old are the plants,what you feeding,how much you feeding,your ph etc

 

[FrostyTheDopeman]

thanks amigo!
its about 3-4 weeks old. it was fed once about a week ago with v light N feed about 5% ratio to water. it has only had water since. it was looking fine last night and just appeared on lower leaves this morning and is moving up pretty quick

 

[Red eyed c]

I'd say shes probably hungry for some N mate,the grow nutes will provide that.give her a feed next time you water bud :group:

 

[FrostyTheDopeman]

Thanks for the help guys!
One more question i have some potassium nitrate i use for smoke bombs is that good for feeding?

 

[InHumboldt]

Farmers go through it by the tons. Depends on the KNO3 it may have contaminates and not be usable for fertilizer-but generally the stuff used in explosives are a redirect from agriculture fertilizer.

 

[FrostyTheDopeman]

Farmers go through it by the tons. Depends on the KNO3 it may have contaminates and not be usable for fertilizer-but generally the stuff used in explosives are a redirect from agriculture fertilizer.

hey i have checked out my KNO3 and it is from a plant food company so its good. how much should i be using approx per litre?thanks