Comparing Water Uptake Patterns in Subsurface Drip and Overhead Irrigated Cotton Systems

As part of a long-term no-till cotton study, soil water uptake patterns and other agronomic system parameters were evaluated under two contrasting irrigation systems.  Replicated trials were conducted that compared subsurface drip and overhead sprinkler systems irrigated with similar frequencies and volumes.   System productivity, pest management, plant fertility and crop growth characteristics were compared during the two year effort. Differences in soil water uptake patterns, insect and weed populations and nutritional status were observed whereas other crop performance parameters were found to be similar in the two systems. The paper works to identify irrigation system and agronomic management issues that may affect cotton productivity and crop management  by growers choosing to apply efficient irrigation practices in no-till cotton.