TY - JOUR AU - Brown, A. L. AU - Krantz, B. A. TI - Widespread zinc deficiency in California soils JF - California Agriculture JO - Calif Agr Y1 - 1960/06/01 VL - 14 IS - 6 SP - 8 EP - 9 PB - University of California Agriculture and Nature Resources SN - 0008-0845 UR - http://www.ucanr.edu/sites/calagjournal/archive/?article=ca.v014n06p8b AB - Zinc deficiency has been common in citrus and other tree fruits in California for many years. More recently, it has been observed in annual field and vegetable crops. A study was set up to delineate the extent of zinc deficiency in California, and to develop means of predicting where it might occur.