| http://www.w3.org/ns/prov#value | - ???They will tolerate a wide range of soil conditions, but produce the best quality tubers in loose soils amended with sand and organic matter such as compost,??? said Nelson. ???Fertilizers should contain low levels of nitrogen and high levels of phosphorus to encourage tuber formation. ???Beauregard??? and ???Georgia Jet??? are two cultivars commonly grown in Illinois and elsewhere in the United
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