
Cracked tubers can still be used. Just pare out any damaged areas before cooking. (Ward Upham)
K-State Research and Extension Horticulture Newsletter |
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![]() Gardeners harvesting sweet potatoes may notice come that have cracks. These are known as growth cracks are usually caused by rains or heavy irrigation after a period of dry weather. The sweet potatoes can develop and hard skin during dry weather which then cracks when there is a rapid uptake of water. However, high levels of nitrogen fertilization can also result in the tubers cracking as it can also lead to rapid growth. Cracked tubers can still be used. Just pare out any damaged areas before cooking. (Ward Upham)
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![]() Sweet potatoes should be harvested no later than the first fall freeze because cold temperatures can damage the sensitive roots. However, you may want to harvest earlier if you prefer a smaller sweet potato. Test dig a hill to see if they are the size you want. Sweet potatoes should be cured after being dug. The digging process often damages the tender skin, and curing helps these small wounds heal. Place the roots in a warm, humid location for 5 to 10 days immediately after digging. A location with a temperature around 85 to 90 degrees is ideal. A space heater can be used to heat a small room or other area. Raise the humidity by placing moist towels in the room. The curing process not only heals wounds but also helps convert starches to sugars. This process improves the texture and flavor of the roots. Sweet potatoes should be stored above 55 degrees. Storage at temperatures below that injures the roots, shortens storage life and gives them an off flavor. (Ward Upham) Video of the Week: |
AuthorsWard Upham runs the Horticulture Response Center in the Department of Horticulture and Natural Resources at Kansas State University. Other contributors include K-State Extension Specialists. Archives
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