Business Editor Nathan Anderson stood at the top of a pasture steep enough to be a ski slope.???Two years ago this was bluegrass and dandelions,??? he said, as a group visitors looked over green bunches of big and little bluestem, Indiangrass and sideoats gramma. ???I didn???t do anything other than take the cattle off for two years and burn it this spring.???It was one of the last stops on a tour