• Sulfur Needs of Spanish Clover and the Relation of Sulfur to Other Nutrients as Diagnosed by Plant Analysis

      Hylton, L. O.; Cornelius, D. R.; Ulrich, A. (Society for Range Management, 1968-05-01)
      Sulfur needs of Spanish clover, Lotus purshianus (Benth.) Clements and Clements, were determined by plant analysis in a nutrient solution study. Top growth was affected more than root growth by changes in S supply. Protein synthesis in the shoots was affected little by S deficiency. Sulfate-S was better than organic-S or total-S to diagnose the S status of the plant adequately. The critical sulfate-S concentration for growth of the plant is about 100 ppm, dry basis, in the middle stem section of the shoots.