TY - JOUR AU - Lilleland, Omund AU - Uriu, K. TI - Nutritional needs of fruit trees indicated by leaf analysis JF - California Agriculture JO - Calif Agr Y1 - 1960/11/01 VL - 14 IS - 11 SP - 12 EP - 12 PB - University of California Agriculture and Nature Resources SN - 0008-0845 UR - http://www.ucanr.edu/sites/calagjournal/archive/?article=ca.v014n11p12 AB - Deficiencies and excesses of essential elements occur in various California orchards. A major research project is aimed at detecting those faults and restoring the fruit trees to healthy and profitable condition.