TY - JOUR AU - Hopmans, Jan W. AU - MacIntyre, Jim AU - Southard, Randal J. TI - Water quality and subsurface soil variabilities affect infiItration JF - California Agriculture JO - Calif Agr Y1 - 1990/05/01 VL - 44 IS - 3 SP - 10 EP - 12 PB - University of California Agriculture and Nature Resources SN - 0008-0845 UR - http://www.ucanr.edu/sites/calagjournal/archive/?article=ca.v044n03p10 AB - Variations in the soil's chemical or physical structure may affect its ability to absorb water. By adding sodium to irrigation water, researchers decreased infiltration during subsequent irrigations. In addition, the thickness and character of soil layers may obscure infiltration effects of tillage and water quality.