[Eric Dobbe]

Thanks for your comprehensive reply Mark. Tissue tests I did on some yellowing oats showed I had the usual suspects of mg and mn deficiency, but also had low calcium. I have applied a foliar to address this now, so will see what happens. I like your comment about the importance of getting calcium addressed in the soil rather the plant. I am seeing some good pH soils still low in available Ca, so still a bit to unpack there with biology!

Bring on Spring!