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SWEET POTATOES More than just a holiday food. © Jack D. Osman, Ph.D. Towson University
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The sweetpotato is both a nutritious and delicious vegetable that deserves to be a regular serving in the American diet. ©Jack D. Osman, 2002
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Some are down-right ugly! Georgia Jet - 1.5 pounds ©Jack D. Osman, 2002
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Some are just BIG! 3.5 pounds! ©Jack D. Osman, 2002
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Others are HUGE! ©Jack D. Osman, 2002
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Little Know Facts Sweetpotatoes are not yams. Yams are tubers native to Africa, have limited nutrition, are long with dry flesh, and take about 350 days to grow. ©Jack D. Osman, 2002
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Little Know Facts Sweetpotatoes are part of the morning glory family. (Look at the leaves.) ©Jack D. Osman, 2002
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Little Know Facts Sweetpotatoes are really storage roots (not tubers). They propagate through “slip” production, are native to South America, and can be harvested in 90 to 120 days. ©Jack D. Osman, 2002
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Little Know Facts Sweetpotatoes rank as the 5 th most important crop for developing countries. World annual production: 133 million tons. China grows 85% of the world production. USA produces about 1% of the world crop. North Carolina is the leading US producer. ©Jack D. Osman, 2002
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Little Know Facts Sweetpotatoes are nutritious! An orange-flesh sweetpotato contains a two day supply of Vitamin A, 40%+ of Vitamin C, nearly 10% of iron needs. Sweetpotatoes are one of the only low- fat sources of Vitamin E, and they have more dietary fiber than oatmeal. ©Jack D. Osman, 2002
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Little Know Facts Sweetpotatoes may fight cancer. The “A.C.E.” vitamins are known as the anti- oxidant set and play a role in cancer prevention. Dietary fiber is another important sweetpotato - anti-cancer link. Additional phytochemicals found in sweetpotatoes (in purple sweetpotato varieties) may also be an anti-cancer advantage. ©Jack D. Osman, 2002
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Sweetpotatoes are easy to grow. ©Jack D. Osman, 2002
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Slip Production and Planting ©Jack D. Osman, 2002
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Back Porch Slip Production ©Jack D. Osman, 2002
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Planting Slips For northern growers - plant slips under black plastic. ©Jack D. Osman, 2002
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Ninety days till harvest! ©Jack D. Osman, 2002
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Curing Sweetpotatoes Immediately following harvest, sweetpotatoes need to be “cured.” Curing protects the root during storage. Sweetpotatoes need to be cured at 85 degrees, 85% humidity for 5 to 7 days. Once cured, store sweetpotato roots at about 60 degrees. Do not store below 55 degrees. This will produce a “chill injury factor,” resulting in a hard core &/or rapid spoilage. ©Jack D. Osman, 2002
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Even if the sweetpotato were to get damaged in harvest, it has a remarkable capacity to heal itself during the curing process. ©Jack D. Osman, 2002
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