Planting alfalfa generally yields 1,200-1,500 pounds of hay per mu (annual output). Alfalfa has tenacious vitality. In addition to being used to feed livestock, it can also be used for soil and water protection, sand prevention and sand fixation, slope protection and greening of mountainous areas. In addition, it can also be used as greening and landscape on saline-alkali and barren lands. Use grass seeds.