TY - JOUR AU - Turrell, F. M. AU - Chervenak, M. B. TI - Sulfur burn in citrus: Radioactive sulfur used in studies to distinguish between fruit-contained and applied sulfur JF - California Agriculture JO - Calif Agr Y1 - 1949/06/01 VL - 3 IS - 6 SP - 4 EP - 14 PB - University of California Agriculture and Nature Resources SN - 0008-0845 UR - http://www.ucanr.edu/sites/calagjournal/archive/?article=ca.v003n06p4 AB - Radioactive sulfur tracers and a Geiger counter were used at the Riverside Experiment Station in investigations made to learn how sulfur burns citrus fruits—so sulfur could be safened.