农业是人类进入文明时代的基础,无论是东半球还是西半球,一切古代文明都是以发达的农业生产为先决条件的。在长期的农业生产活动中,印第安人培育出了许多农作物,这些作物不仅孕育了印第安人的古代文明,而且对世界农业的发展也具有重大影响。在今日世界的粮食作物中,小麦、水稻和玉米是三大支柱。其中,玉米是由 Agriculture is the basis for mankind to enter the age of civilization. Whether it is the Eastern Hemisphere or the Western Hemisphere, all ancient civilizations are based on advanced agricultural production. In long-term agricultural production activities, Indians have cultivated many crops that not only gave birth to the ancient civilizations of the Indians, but also had a major impact on the development of the world’s agriculture. In today’s world food crops, wheat, rice and corn are the three pillars. Among them, corn is made of