Subsoiling at a 45° angle has been a recommended practice since the mid-70's on most Delta cotton soils. This practice has been shown to break up hard pans and allow deeper wetting of the soil profile with winter rainfall. Producer's are now focusing their attention to in-row subsoiling, because new subsoiler designs have the shank extending through the soil at an angle, reducing soil surface disturbance and allowing the subsoiler to run in the row direction, without the shank passing directly through the drill. Irrigation acreage has also expanded since the early 80's, both with center pivot systems and with furrow systems, and will continue to expand with the occurrence of drought years. Irrigation is truly supplemental and represents a type of insurance against yield uncertainty during dryer-than-normal years, with our variable rainfall.