大叶紫花苜蓿属豆科类多年生草本作物,根系发达,富含根瘤菌,具有良好的固氮作用,是改良土壤、培肥地力、轮作倒茬的首选作物。因其产量高、营养丰富,长期以来主要作为动物的优质饲草来利用,素有饲草之王的美称。近年来,随着人们物质生活水平的不断提高,人们的饮食结构日趋多元化,开始 Large-leaf alfalfa is a perennial leguminous herb crop, developed root system, rich in rhizobia, has a good role in nitrogen fixation, is to improve the soil, fertility, crop rotation crop preferred crops. Because of its high yield, nutrient-rich, has long been mainly used as animal forage quality, known as the king of forage reputation. In recent years, with the continuous improvement of people’s material life, people’s diet has become increasingly diversified and started