Abstract
The present study was undertaken to determine the general nutrient requirements of the sweetpotato since field, fertilizer tests have yielded a variety of responses with different fertilizer treatments. Sweetpotatoes usually respond to small applications of nitrogen fertilizers but excessive fertility often results in too much vine growth and few storage roots. The study to be reported was conducted on the influence of three or more concentrations of the following chemicals upon vine growth, storage root production, and chemical composition of the sweetpotato plant: NaNo3, NaH2P04, CaCl2, MgS04, KC1, KC1 plus NaCl, K2SO* and H3B03. Data are presented in the present paper on the relationships between mineral nutrition and (1) storage root and vine weight; (2) general appearance of the leaf blades, storage roots, and fibrous roots; (3) mineral composition of the leaf blades, petioles, stems, storage roots and vines ; and (4) carbohydrate composition of the leaf blades.
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