Alfalfa is the earliest cultivated forage grass in the world, with high protein content, and is also called "the king of forage grass". Alfalfa is a perennial herb of Leguminosae, which produces 6000-8000 kilograms of fresh grass every year in A Mu, with strong drought resistance and cold tolerance.

2. Winter pasture 70 ryegrass

Dongmu 70-year-old Lolium perenne is a very high-quality forage variety, which has many advantages compared with ordinary Lolium perenne. Especially in the aspect of cold tolerance, it has been well improved, and it will not freeze to death even in winter. It is a very popular forage species in northern China. It is rich in nutritional value, contains a variety of trace elements, and has a good role in promoting the growth of animals. When planting, the cost is relatively low, and it can be harvested about three or four times a year, and it can achieve very good benefits when harvesting.