As I continue to look at cover crop farming and reading how manure is used for part of the fertility I think of weed seeds in the manure.

Are those who apply cattle manure concerned about weed seed ?

Is all manure first composted to help kill some of the weed seed ?

Is poultry litter prefered or only used by some because of the weed free product ?

Is cattle mature and weed seed combination just he price to be paid for cover crop farming and increased soil health ?

Closest feedlot, Mid America, charges $1 to $0 /ton.   Monday will get cost for hauling, spreading and fertility content/ ton.       Normal to get cattle manure for free ? 

Feed lot is 26 miles away.  Currently ground not frozen, no application possible. 

What am I not thinking/looking at about cattle manure ?