我国杂粮资源丰富，总产量约占主粮的l／3。可是，目前农村大部分杂粮单纯用于饲喂禽，既不科学，经济效益又低。不少农户杂粮大量积压，难以消化，导致糜烂浪费。据专家估算，我国每年浪费的杂粮在500万吨以上。杂粮营养丰富，不少杂粮所含的蛋白质、维生素均高于主粮，有的还 China’s miscellaneous grains are rich in resources, and the total output accounts for about 1/3 of the staple food. However, at present, most of the coarse grains in rural areas are simply used for feeding poultry, which is neither scientific nor economical. Many peasant households have a large backlog of miscellaneous grains, which is difficult to digest, leading to erosion and waste. According to experts’ estimates, China wastes more than 5 million tons of grains every year. Miscellaneous grains are rich in nutrients, many of them contain more protein and vitamins than staple foods, and some also contain