Jowar, Bajra and Ragi are three important millets. . Ragi: Ragi is very rich in iron, calcium, and other micro nutrients and roughage. It is a crop of dry regions and grows well on red, black, sandy, loamy and shallow black soils. Karnataka is the largest producer followed by Tamil Nadu. . Jowar: It is a rain fed crop mostly grown in the moist areas which hardly needs irrigation. Maharashtra is the largest producer followed by Karnataka, Andhra Pradesh and Madhya Pradesh. . Bajra: It grows well on sandy soils and shallow black soil. Rajasthan is the largest producer of bajra followed by Uttar Pradesh, Maharashtra, Gujarat and Haryana.