Buckwheat is the important food crops and cash crops,and it also has a high nutritional value,being rich in bioflavonoids and other bioactive components and having the dual effect of nutrition and health. It is not only a honey crop,but also a traditional export commodity in china. Its unique nutritional composition,functional value and role of agricultural production play an important role to meet the current needs of people. Buckwheat has become the focus of attention,as the research of its medici...