By Ralph Mazzanti and Ron Baker, Rice Research Verification Program Coordinators
South Arkansas: The southern fields are moving fast with several fields approaching the late boot to heading stage. The Lee and Phillips County fields are approaching 1/2” internode elongation. A welcome rain was recorded with 2.4” in Desha and Phillips Co. and 1.4” in Monroe Co. Any rainfall at this time will help fields struggling to maintain an adequate flood. The irrigation well at Lee Co. has continually struggled to maintain an adequate flood. The field is yellowing and another well has been diverted to help maintain a minimum flood. A decision on the amount of nitrogen loss will be made next week. Disease pressure continues to be low but intense scouting will continue next week.
North Arkansas: All fields are progressing rapidly, especially Conway Co. which has received its late boot application of urea and is heading several days ahead of the DD50 prediction. Scattered thundershowers have given relief to some fields but dry conditions are making it more difficult to maintain the flood in most. Lawrence Co. received a corrective urea application after showing early signs of nitrogen depletion in the field. Cross Co. also received a corrective urea application on 25 acres (about 1/5 of the field). Disease pressure remains very light with no recommendations for treatment at this point. Sweeping for rice stink bugs will increasingly become a major focus of field evaluations for the next several weeks as more fields hit their 75% panicle emergence.
For field-specific information, click the linked pdf below: