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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

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