Annual and perennial clovers provide nitrogen, increase forage yield and extend the grazing season, says Don Ball, Auburn University Extension forage specialist, in a video interview with Forrest Laws on behalf of Hay & Forage Grower. At the recent Sunbelt Ag Expo, Ball told of an Auburn study comparing stocker cattle production among  37 forage systems; legumes, including clovers, provided high forage quality and improved animal performance