Fig. 6. Water infiltration rate during 3-h simulated rainstorms on three consecutive days on the Dooley fine sandy loam (Exp. 1). Tillage treatments were: (i) subsoiling with a paratill and secondary tillage with a disk (SSplus), (ii) subsoiling with a paratill (SS), and (iii) not subsoiled (NoSS). Least significant differences are shown for Days 1 and 2 at 0.5-h intervals where P 0.05. Infiltration rates were significantly different between SS and SSplus for all times 0.5 h (ANOVA, P 0.05) during Day 3.