"future-participation-in-the-conservation-reserve-program-in-north-dakota" . "Future participation in the conservation reserve program in North Dakota "^^ . . "21" . "203-214" . "2011"^^ . . . _:genid1 . _:genid1 . _:genid1 . _:genid1 . _:genid1 . _:genid2 . _:genid2 . _:genid2 . _:genid2 . _:genid2 . _:genid3 . _:genid3 . _:genid3 . _:genid3 . _:genid3 . . . . .