I been doing that for years, don't expect good hay right off but I bale it all, my beef grow just as well on that wild hay as they did when I bought the good stuff, maybe they waste more, I don't care. I also use the mulch stuff for bedding, I run it through an old straw chopper so it doesn't mat up like long hay and it makes great bedding. Turn, till and seed whatever you can afford per year and before you know it you will have decent fields.