红薯秧蔓顶端的10～15厘米及嫩叶、叶柄合称茎尖。现在大多数地区将红薯秧风干用来做饲料,产品附加值不高。随着科学技术的发展,茎尖的营养价值与良好的保健作用越来越受到人们的重视。红薯嫩尖含有丰富的蛋白质、胡萝卜素、维生素、铁和钙质。据中国预防医学科学院的检测,茎尖和芹菜、甘蓝、菠菜、白菜、油菜、韭菜、黄瓜、南瓜、冬瓜、莴 Top of sweet potato seedling vine 10 to 15 cm and young leaves, petioles collectively known as the tip of the stem. Now most areas will be dried sweet potato seedling feed, the added value of the product is not high. With the development of science and technology, the nutritional value of stem tips and good health effects have drawn more and more attention. Sweet potato tender tip is rich in protein, carotene, vitamins, iron and calcium. According to the Chinese Academy of Preventive Medicine test, the tip and celery, cabbage, spinach, cabbage, rape, leek, cucumber, pumpkin, melon, lettuce