Evaluating Various Soil Moisture Sensor Thresholds in Cotton in South Carolina

Cotton was irrigated using overhead irrigation in South Carolina. Irrigation timing was determined by soil moisture sensor thresholds maintained the entire season at 25, 50 and 75% maximum allowable depletion at three depths. Root cores were also obtained at 5-leaf and full bloom where a root analyzer and software program quantified plant roots by irrigation treatment, replication, and within the row and row middle.