How thoughtful of you to be such a good soil steward. The good thing about salt is that it can be rinsed away, so I would at least try to swirl it out of the area that most likely got saturated with saline. Put it in a bucket, add water, swish and and strain?

Plenty of water washing through the soil will dissolve the salts, and you shouldn't have problems unless you grow salt sensitive plants. I would work in a generous helping of compost to help the soil's ability to handle moisture.

You probably won't see many earthworms in that bed this year, but otherwise it will probably be fine. Only a century ago, people routinely salted their gardens to get rid of earthworms!

Here is a link that might be useful: my website

Here's a website if it's any help.

Here is a link that might be useful: salt tolerance

Aha! Finally a good time/place to suggest gypsum.

Mix a goodly amount of gypsum into the soil. Then water very thoroughly now and then. (Or let the rain do it; that is, if you have rain.)

There are several of the reactive metal ions that need to be in balance with each other. Those include sodium, magnesium, potassium, and calcium. We don't know where you live or what salt is out of balance so suggesting to add one or another to rebalance the soil would be pure guesswork. My first choice would be to spread the "salt" soil you have now around and hope for the best. If you don't get the best, then you might want to test the soil for salt balance. The only soil test lab I know of that does a test like that routinely is the Texas Plant and Soil Lab. They specialize in reclaiming salted soils from well drilling.

Here is a link that might be useful: Texas Plant and Soil Labs

I read somewhere a while back that beets are planted in soils with high salts to pull the salt out of the soil.

Does anyone have more information about this?