Welcome to NGA, @ram64navy94
I have to disagree about not keeping an asparagus bed weeded; although your plants may survive, they will not produce as well as they should. The weeds use nutrients from the soil that the asparagus should be getting, and can totally choke out the crowns -- as well as providing cover for asparagus beetles.
Here's a link to an article in the Learning Library about growing asparagus, which mentions the use of salt but does not recommend it because the salt stays in the soil and eventually there will be more than the asparagus can tolerate. https://garden.org/learn/artic...
The key really is diligence in weeding, and using a mulch around the plants can be very helpful in reducing the number of weeds as well.