TY - JOUR AU - Sposito, Garrison TI - How to manage “soil quality” key question for farmers and scientists JF - California Agriculture JO - Calif Agr Y1 - 2003/04/01 VL - 57 IS - 2 SP - 34 EP - 34 PB - University of California Agriculture and Nature Resources SN - 0008-0845 UR - http://www.ucanr.edu/sites/calagjournal/archive/?article=ca.v057n02p34 AB -