Foliar Feed or top-dressing for Salt damaged trees

[Tallgrass]

Apologies if there is already a thread on this. I've searched for 20 mins and can't find one and don't have a lot of spare time at work.

 

Can anyone recommend any foliar feed by name or other treatments to simply give a relatively young tree with severe salt damage a boost/extra nutrients?

 

I've also heard of this sugar/solution flushing. Considered a volcanic rock dust application, or simply a basic blood and bone application too.

 

We're going to do all the usual things like covering the base of the tree in winter, reminding operatives about salt/run-off/snow piling etc.

 

But if anyone has any basic info on a treatment, or past experience - it would help greatly to advise my colleagues.

 

Many thanks