TY - JOUR AU - Hagan, Robert M. TI - Water-soil-plant relations: Soil moisture-plant growth relations are influenced by many factors including soil type, plant root systems and weather JF - California Agriculture JO - Calif Agr Y1 - 1957/04/01 VL - 11 IS - 4 SP - 9 EP - 12 PB - University of California Agriculture and Nature Resources SN - 0008-0845 UR - http://www.ucanr.edu/sites/calagjournal/archive/?article=ca.v011n04p9 AB - With irrigation—and where necessary, with drainage—the farmer can exercise greater control over soil moisture than over any of the other soil physical factors.