Evaluating the Sulfur Status of Soils by Plant and Soil Tests

Abstract
Several methods for evaluating the sulfur status of soils were compared. Among chemical procedures used, water and phosphate extractions gave the best agreement with sulfur A values and total sulfur uptake by alfalfa from Nebraska soils. Water was an inefficient extractant of sulfate from a Hawaiian Latosol. Calcium phosphate solution was a more convenient extractant than KH2PO4 for both Nebraska and Hawaii soils.
Funding Information
  • Sulphur Institute