Mother Earth News / Barbara Pleasant / August/September 2012
Success with storage crops hinges on finding methods that convince the crops that they are enjoying a natural period of dormancy in unusually comfortable conditions. This typically involves slowing physiology by controlling respiration (usually by lowering temperature) and/or providing moisture so crisp root vegetables sense they are still in the ground. Some staple storage crops, such as garlic, onions and shallots, need dry conditions to support prolonged dormancy.
Most storage crops need to be cured to enhance their storage potential. During the curing process, potatoes and sweet potatoes heal over small wounds to the skin, garlic and onions form a dry seal over the openings at their necks, and dry beans and grain corn let go of excess moisture that could otherwise cause them to rot. Harvesting, curing and storage requirements vary with each crop — see the charts in How to Harvest, Cure and Store 20 Storage Crops for full details. In my experience, harvesting and curing vegetables properly leads to much more flexibility when it comes to long-term storage conditions.
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