tied up asparagus

I was asked about how I "tired up" my asparagus. Here's a picture. A couple wood posts and some string around the edge of the patch. As I look at other asparagus patches, they seem to stand up better on their own than mine. Mine flops over onto the broccoli. Maybe because its young (3 years old). This does the trick. I'll remember to bring some fertilizer to it tomorrow. And I suppose it could use a couple inches of compost layered on top. Please let me know any advice for growing asparagus.