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Sulfur Supply of Soils and Crop Yields in the Southeastern United States¹

ABSTRACT

The sulfur level of soils from the no-sulfur plots of 21 field experiments was estimated by three chemical methods using soil from the 0 to 12-inch depth. The three methods were significantly correlated with percentage yield
(R = 0.60) while the simple correlations with percentage yield were r = 0.55 for acetate-soluble sulfate, r = 0.59 for bicarbonate-extractable sulfur, and r = 0.44 for reserve + SO₄-sulfur.

¹ Presented before the Agronomy Section, Association of Southern Agricultural Workers, Jacksonville, Fla., Feb. 5, 1962.

² Formerly Soil Scientists, Soil and Water Conservation Research Division, ARS, USDA, State College, Miss., and Beltsville, Md. Presently Associate Agronomist, South Carolina Agr. Exp. Sta. and Assistant to the Manager of Agricultural and Chemical Development, Tennessee Valley Authority, Wilson Dam, Ala., respectively.

Received for publication May 11, 1962. Accepted for publication September 19, 1962.