Kaltura Share to Google Classroom Dr. Coclanis describes why rice declined as a “cash crop” in South Carolina, in favor of other exports. Grades: 6 7 8 9 10 11 12 Subjects: Social StudiesEconomics and Personal Finance Collection: African American HistorySlavery in South CarolinaExplore South CarolinaAgricultureFood & Drinks Series: South Carolina Public RadioWalter Edgar's JournalConversations on South Carolina: The State and the New Nation, 1783-1828 - The Importance of Cotton