15 years ago I planted my asparagus near a plum tree sapling. That sapling has grown into a tree that is now shading my asparagus and production is sparse, so time for a new bed in a new location. Boogie helped, of course.
I purchased 15 two year Jersey Giant crowns, an all male variety for better production, and dug a trench in full sun. Then I added a good amount of well rotted chicken manure, placed the roots 18" apart and watered them in. Asparagus is a heavy feeder and likes lots of compost. I covered the crowns with 6" of soil and watered again. Now the planting directions call for 3" to 4" deep plantings, but I have found that here in this climate planting the crowns deeper is more successful.
If all goes well I'll have a small crop to harvest next spring.
I intend to try and transplant the old stock in hopes of salvaging some of those crowns too.