This subseries contains records and maps related to soil formation and classification, management, physics and structure, salinity and alkalinity, conservation and erosion, and chemistry.

This subseries contains records and maps related to soil formation and classification, management, physics and structure, salinity and alkalinity, conservation and erosion, and chemistry.

This subseries contains records and maps related to soil formation and classification, management, physics and structure, salinity and alkalinity, conservation and erosion, and chemistry.

This subseries consists of pamphlets, publications, newsletters, photos, trial reports, data, newspaper clippings, policies, and lectures related to sweet potatoes. Topics included are integrated pest management, seed program, sweet potato farming, sweet potato soil, Sweet Potato Council, Sweet Potato Convention, Nematode resistant, russet crack, harvesting, and North Carolina Sweet Potatoes.