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Rice Research Verification Program update for May 23, 2016
Author: Ron Baker, Rice Research Verification Program Coordinator

By Ralph Mazzanti and Ron Baker, Rice Research Verification Coordinators

South Arkansas: Cool temperatures and slow growth has been the topic of discussion this past couple of weeks.  Five of the nine South Arkansas fields have gone to flood.  Phillips County was the last field planted and received .9” of rain for germination.  Lee County should be close to a healthy 4 leaf stage and ready for flood this week.  The Monroe County field has been slow to grow off due to Command and cool weather and required another post-emergence herbicide application prior to permanent flood.  The Ashley County field is waiting on levees and to be seeded yet patties are at 4-5 leaf stage.  The Jefferson and Lincoln County row water fields are progressing slowly due to cool temperatures even with pre-flood N under them.  The Chicot County hybrid field is the most challenging with rice seed not geminated yet to rice at 1, 2 and 3 leaf stages.  Stand counts are from 1.4 to 2.2 plants ft2.  Flushing again was recommended since rain was missed this past week.

North Arkansas: The Randolph County field has lost its residual herbicide due to river overflow that submerged the field a few days before receding.  This has also hindered emergence on the bottom 10 acres of the field where water stood the longest.  Fortunately, the rest of the field is now emerging to a good stand.  Residual herbicides continue holding well in all other fields. The field injured by herbicide drift in Mississippi County is responding well to warmer weather but needs a few more days of growth before flood-up. The one in Clay County has been slower to recover and needs a full week of warmer weather to regain normal growth and color.  The Conway County field has received its N-STaR pre-flood N application and is now under permanent flood.  Cross and Jackson fields have also reached the early tillering stage and should go to flood this week. White County is emerging well and an optimal stand is expected.

For field-specific information please see the linked table (pdf).

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