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Arkansas Rice Verification Update: N-STaR* Recs Show Shifting Needs

Owen Taylor
By Ralph Mazzanti, Extension Rice Research Verification Coordinator, South Arkansas May 17, 2012 08:09

Rice Research Verification Program Update

May 14, 2012

Several Rice Research Verification fields are going to flood this week.  Arkansas 1, Chicot 1 and Chicot 2 are now being flooded.  Much needed postemergence herbicides are being applied on some fields.  The N-STaR* nitrogen rates have been determined.  Several fields have reduced N rates while a few have a slight increase.  The purpose for N-STaR* is to get the RIGHT N rate for the field.

        
         

 County

 

Variety

 N-STaR*

Total

(lbs N/A)

 

Stage

 

General Information


Arkansas 1         

CL XL 745

100

Early Tiller

The field has been flushed twice.  Herbicide recommendation:  Clearpath (.5 lb/acre) plus Permit Plus (.75 oz/acre) plus (1%) crop oil.  Apply urea (155 lbs/acre) and flood.
Arkansas 2

Roy J

155

Early Tiller

Recommendation:  Superwham (4 qts/acre) plus Facet (.5 lb/acre) plus Aim (1oz/acre).  Apply urea (205 lbs/acre) and flood.
Arkansas 3

CL 151

140

2-3

leaf

Ammonium sulfate has been applied (100 lbs/acre) the field has been flushed.  The field received .6 inch rain.  Recommendation:  Clearpath (.5 lb/acre) plus Permit Plus (.75 oz/acre) plus (1% crop oil).
Chicot 1

CL 151

60

Early Tiller

Recommendation:  Facet (.25 lb/acre) plus Newpath (6 oz/acre) plus crop oil (1%).  Apply urea nitrogen (130 lbs/acre) and flood.
Chicot 2

CL 111

100

Early Tiller

Recommendation:  Facet (.5 lb/acre) plus Permit (1oz/acre).  Apply Preflood nitrogen and turn on well for permanent flood.
Clark

Francis

110

1-2

leaf

Command herbicide is holding grass so far.  No recommendation this week.
Desha 

CL XL 745

95

Spiking-1 leaf

The field has been planted and is now emerging. Stand counts indicate 1 plant/ft2.  Should have more next week.
Jefferson

XP 753

120

2-3

leaf

Ammonium sulfate (100 lbs/acre) has been applied and the field has been flushed.  Rainfall after flushing was 1.4 inches received on 7 May.    Recommendation:  Propanil (4 qts/acre) plus Permit Plus (.75 oz/acre) plus Aim (1 oz/acre).
Lincoln

XP 753

120

1-2

leaf

Postemergence herbicides applied:  Facet (.5 lb/acre) plus Propanil (4 qts/acre) plus Permit Plus (.75 oz/acre).  Some rice burn has occurred but should be ok by next week.
Lee

Roy J

165

Early Tiller

Herbicide recommendation:  Facet (.67 lb/acre) plus Aim (1 oz/acre) plus crop oil (1%).  Apply preflood nitrogen and flood.
Phillips

CL XL 745

155

2-3

leaf

Ammonium sulfate (100 lbs/acre) has been applied and the field has been flushed.  The field received 1.5 inches rain on 7 May.  Herbicide recommendation will be decided this week.

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Owen Taylor
By Ralph Mazzanti, Extension Rice Research Verification Coordinator, South Arkansas May 17, 2012 08:09