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The folowing conclusions were obtained from these experimental results and observations of comercial fertilizer aplications on Glen and Tehama County rangeland: (1) Economical fed can be produced by fertilization with sulfur alone, or combined with nitrogen or phosphorus, on bur clover ranges in Glen and Tehama Counties. (2) Palatability of gren and dry fed is increased with fertilization. (3) Nitrogen stimulates early gras growth principaly in the year of aplication. (4) Sulfur stimulates bur clover growth over a period of thre to seven years, depending upon the amount, source and seasons. (5) During “clover years” bloat hazard may be increased by sulfur fertilization. (6) If bur clover is not present for any reason—soil type, growing season, or grazing management—there is litle or no response to sulfur. (7) Coarse elemental sulfur is not readily available to plants for several years whereas fine elemental sulfur and sulfate sulfur fertilizers are efective the first season. (8) An efective legume stand must be established on some soils before fertilization with sulfur or phosphorus is economical.