This is nitrogen deficiency right?

Age of plants? Medium they’re in and any feeding you have done.
I'll admit I don't know exactly the age of the plant so I'm goin to take a guess here, there around 4-5 weeks. The medium is coconut fibers. Not sure what you mean by feeding, could you elaborate for me. I'm new to growing and this form. Apologies for my ignorance
 

hotrodharley

Well-Known Member
I'll admit I don't know exactly the age of the plant so I'm goin to take a guess here, there around 4-5 weeks. The medium is coconut fibers. Not sure what you mean by feeding, could you elaborate for me. I'm new to growing and this form. Apologies for my ignorance
Did you soak the coco and rinse it well before using it? If not that’s your explanation. It’s heavy in sodium. Sodium displaces potassium.
 

hotrodharley

Well-Known Member
Did you soak the coco and rinse it well before using it? If not that’s your explanation. It’s heavy in sodium. Sodium displaces potassium.
Personally I’d transplant into something that is not more than 30% coco. For multiple reasons. Rinse coco well. Some pretreat by resoaking in cal mag at 2 ml/gallon of water. But at least rinse really well. Even if it says you don’t have to!
 

Stealthstyle

Well-Known Member
use perlite instead. I used to use perlite when i first started growing in 1996, i never had any issues besides a few white flies.
When i switched to coco i would get all these deficiencies. So im back with perlite. if they are monster trees they could fall over though as perlite is too light.
 

TessaMaria

Well-Known Member
use perlite instead. I used to use perlite when i first started growing in 1996, i never had any issues besides a few white flies.
When i switched to coco i would get all these deficiencies. So im back with perlite. if they are monster trees they could fall over though as perlite is too light.
Do you mean that you use only perlite? It soinds very interesting, what is the process?
Thanks
 

Stealthstyle

Well-Known Member
Buy a bag or two of perlite, poor it into a pot, put in seedling and jiffy pellet in the middle i only ever use 12 liter pots, 50 liter pots seem to allow the plant to topple over
 

lusidghost

Well-Known Member
Just flush it with a bunch of PH'd water. A PPM meter would be helpful if you have one. Then during the next watering start off a little low in the nutrients and work them back up to a normal level over the next few days.
 
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