1.小杂粮分布与生产。小杂粮的种类很多，分布地域广泛，在世界各地都有分布。栽培面积较大的小杂粮有荞麦、燕麦、大麦、糜子、绿豆、小豆、豌豆和蚕豆等。中国地处温带和亚热带地域，又是作物起源中心，不但小杂粮种类多，而且占有的份额大（表1）。其中荞麦、糜子的面积和产 1. Small grains distribution and production. Small variety of small grains, widely distributed in all parts of the world are distributed. Cultivars larger grains are buckwheat, oats, barley, millet, mung beans, adzuki beans, peas and beans and so on. China is located in temperate and subtropical regions, and is also the center of crop origin. Not only is there a large variety of small cereals but also a large share (Table 1). Which buckwheat, millet area and production