What's the best foliar fert for alfalfa?

Black Label Zn, Lokomotive and Radiate! Boron also depending on what your K:B ratio is.

Brandt Smart Trio and Brandt Smart K-B

Alfalfa Blend

Eden Solutions

Asheville, NC

https://www.greenbook.net/helena-agri-enterprises-llc/tracite-foliar-20-20-20

I apply Nourish Vitals and Inhabit boost. Have been seeing a difference in alfalfa quality and tonage compared to the neighbors.