What is wrong with my peppers?

Question

My peppers are not growing. The leaves are yellow with brown spots.
The leaves are falling off and the plants are not growing.
Mostly the bell peppers. The jalapeño poppers don’t seem to be affected yet.

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Answer 1

This article will help you.

https://www.gardeningknowhow.com/edible/vegetables/pepper/pepper-yellow-leaves.htm