Small square balers guys. Who Added preservative applicator

In tuff times without many options when there is a need to put preservative on hay.

What brand and how fancy of a setup did you use?

What brand of chemical do you use?

I sell most of my hay to horse people so have to be careful on what is used.

I would use if moisture is in the rang 18% to 22%


Thanks

Small square balers guys. Who Added preservative applicator