Click on “Download PDF” for the PDF version or on the title for the HTML version.

If you are not an ASABE member or if your employer has not arranged for access to the full-text, Click here for options.

The goal of this research was to determine the level of deficit irrigation that provided the highest economic return for cotton. Drip tape was used to create nine deficit irrigation treatments compared to a rainfed control in a RCB design. Irrigation was initiated at square, bloom, and post-bloom by opening manual valves on the drip lines while irrigation levels were created by different drip tapes that supplied 3.8, 2.5, and 1.3 cm per week. Irrigation amounts were reduced if rainfall supplied the required water. Delta Pine 143 & Phytogen 375 were used on a Memphis silt loam soil at the West Tennessee Research and Education Center, Jackson, TN.