N is a highly mobile element. Yellowing from lack of N occurs from the bottom up.
I second cep's suggestion And would add a soil ec meter...maybe you need to get those microbes working a little harder...but measure first and know.
Is it old coot mix or new bagged mix?
I second cep's suggestion And would add a soil ec meter...maybe you need to get those microbes working a little harder...but measure first and know.
Is it old coot mix or new bagged mix?