TY - JOUR AU - Grimes, D. W. AU - Miller, R. J. AU - Schweers, V. H. AU - Smith, R. B. AU - Wiley, P. L. TI - Soil strength modification of root development and soil water extraction JF - California Agriculture JO - Calif Agr Y1 - 1972/11/01 VL - 26 IS - 11 SP - 12 EP - 14 PB - University of California Agriculture and Nature Resources SN - 0008-0845 UR - http://www.ucanr.edu/sites/calagjournal/archive/?article=ca.v026n11p12 AB - The root development of cotton (tap root system) and corn (fibrous root system) in field studies was greatly restricted on a high-strength Hanford sandy loam, compared with that on a low-strength Panoche clay loam. The high strength of the Hanford soil prevented significant root development below two feet, with the result that as much as 80% of extraction of soil water was from the surface foot of soil only.