Irrigations were delivered by LEPA and subsurface drip irrigation (SDI) systems to cotton grown in 1995, 1996, and 1997 at the Texas Agricultural Experiment Station at Halfway, TX. The LEPA treatments were irrigated on 1, 2, and 3-day intervals while all SDI treatments were irrigated daily. Irrigation timing and amounts were determined from a protocol which compared calculated field water content to a target soil water content with the target water content providing a controlled decrease in soil water from peak bloom to the end of the growing season. Irrigation quantities were also restricted to maximum irrigation delivery rates of 0.1, 0.2, or 0.3 in./day. Detail profile wetting was monitored during preplant irrigations to evaluate seed germination in SDI and LEPA plots.