土豆原产于南美洲的秘鲁安第斯山区和智利沿海地区,迄今已有一千多年的栽培历史,近百年才传入我国。在我国,土豆的名称很多,如洋芋、山药蛋等。土豆学名叫马铃薯,与玉米、小麦、水稻、燕麦并称为当今世界五大粮食作物。外国一些食品专家认为,土豆的维生素C含量相当于胡萝卜的两倍,白菜的三倍,西红柿的四倍,是“十全十美的食 Potatoes native to the Peruvian Andes and the coastal areas of Chile in South America have so far been cultivated for more than a thousand years and have not been introduced into our country until nearly a century ago. In our country, many names of potatoes, such as potato, yam egg. Potato science called potato, and corn, wheat, rice, oats and known as the world’s five major food crops. Some foreign food experts believe that the potato vitamin C content equivalent to twice the carrots, cabbage three times, four times the tomatoes, is "perfect food