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N Deficiency??

I

Illsstep

For the most part, these jalapeño plants are growing well, flowering, and setting fruit. But the lower leaves have been progressively yellowing.

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New growth is green and healthy looking.

They are being grown indoors, under a 315 watt ceramic metal halide that is on 16 hours/day.

The soil mixture is a fast-draining mix that is primarily bark-based (overwatering seems unlikely because of this).

They are being fertilized every three to five days with 1 tsp/gal of Foliage-Pro.

Temperatures stay between 70 and 75 degrees, and relative humidity is maintained between 50% and 60%.

Any ideas? Are these guys just very heavy feeders?
 
There is a lot of reflected light, though. 4 plants in a 3'x3' with Orca film on the walls. They aren't getting quite as much direct light as the upper canopy, but they are really not shaded.
 
juanitos said:
lower leaves will drop off as canopy gets bigger and shades them. they don't get much light and most nutrients are sent to the top of the plant.
Click to expand...
 
 
+1^.
 
The plant will shed what it no longer needs.

 
 
Illsstep said:
There is a lot of reflected light, though. 4 plants in a 3'x3' with Orca film on the walls. They aren't getting quite as much direct light as the upper canopy, but they are really not shaded.
Click to expand...
you can try bumping up to 2tsp/gal and see if that helps...
 
Thank you for all the responses! I will try upping the fertilizer, and if that doesn't help, I will just accept it as normal leaf drop.
 
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