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29
Jun
2014
Rice research verification program update – June 27, 2014
Author: Ralph Mazzanti, Rice Research Verification Coordinator

South Arkansas: The Rice Research Verification fields have progressed very well this past week.  Two fields are at early tiller stage while eight fields are at ½” or beyond internode elongation.  With heat, humidity, overcast clouds and rain, conditions are very favorable for disease.  Sheath blight has been detected but no upward movement at this time.  Some rice water weevil (RWW) scarring was observed but is minimal.  No fall armyworms or rice blast has been detected in the RRVP fields at this time.

 

County

 

Variety

 

Seeding:

Date

Method

Rate

Treatment

Emergence

Density

 

Stage

General Information & Application

(Rates listed per acre)

 

Southern Counties                                             
Arkansas

      

CL XL745 4-14-14

Drill

19 lbs/acre

CruiserMaxx Rice

4-15-14

5 plants ft2

½” IE 1st post application

Clearpath 0.5 lb + Prowl H2O 2.1 pt + COC 1 pt

Apply 100 lbs ammonium sulfate applied 5/2. (received 1.8” rainfall after application)

2nd post application (preflood)

Newpath 4 oz + Permit Plus 0.75 oz + COC 1 qt applied 5/23.

Applied 225 lbs urea plus NBPT according to N-STaR 5/24 and established a permanent flood. The field is clean and progressing well.

Total rainfall since planting 9”.

Chicot XL753 4-23-14

Drill

24 lbs/acre

CruiserMaxx

Rice

5-3-14

6 plants ft2

 

½” IE Herbicides recommended after planting:

Roundup PowerMax 1 qt + Command 12.8 oz + League 3.2 oz (received 3.6” rainfall from planting to preflood [30 days] for continued activation).

1st post application:

Facet 0.5 lb + 1 oz Permit + 3.2 oz League applied 5/22.

Apply 270 lbs urea with NBPT according to N-STaR and 100 lbs DAP according to soil test. Established a permanent flood 5/23.

Rainfall total since planting 12.75”.

Desha XL753 5-6-14

Drill

23 lbs/acre

CruiserMaxx

Rice

5-22-14

6 plants ft2

Early-Tiller Applied Roundup Power Maxx 26 oz +1 oz Sharpen +1% MSO at planting.

1st post recommendation:

Command 1 pt + Facet 0.5 lb applied 5/25.

Apply 100 lbs ammonium sulfate 5/26.

2cd post recommendation:

Permit Plus .75 oz + COC 1pt 6/13.

Apply 200 lbs urea + NBPT and establish permanent flood. The permanent flood was delayed due to underground irrigation pipe installation.

The field received 8.65” of rain since planting.

Jefferson LaKast 5-25-14

Drill

65 lbs/acre

CruiserMaxx Rice

6-4-14

Early-Tiller Herbicides recommended at planting:

Command 1 pt + Touchdown 30 oz 5/25.

Applied 130 lbs K according to soil test + 100 lbs DAP 6/14.

1st post recommendation:

Sharpen 1 oz plus 1 qt propanil 6/20.

Applied 260 lbs urea + NBPT according to N-STaR and apply permanent flood 6/20. Scum was prevalent after flooding but the recent rains have reduced the problem.

Total rainfall amount 6.1”.

Lee Roy J 4-18-14

Drill

65 lbs/acre

CruiserMaxx Rice

4-29-14

16 plants ft2

1/2” IE Applied Command 12.8 oz at planting.

1st post recommendation:
Propanil 4 qts + Facet 0.66 lb + Permit 1 oz applied 5/14.

No pre-flood herbicide recommendation warranted: Applied 170 lbs Urea fertilizer + NBPT according to N-STaR 5/28 and flood.

Mid-season 100 lbs urea was applied 6/24.

Rainfall amount since planting 12.2”.

Lincoln CL XL745 5-7-14

Drill

28 lbs/acre

CruiserMaxx

Rice

5-21-14

7 plants ft2

Mid-Tiller Due to weather no pre-emergence herbicides were applied.

1st post recommendation:   Applied Facet 0.5 lb + Command 12.8 oz + Superwham 3 qts applied 5/23.

100 lbs ammonium sulfate +

150 lbs DAP applied 6/6.

2cd post recommendation: Permit Plus .75 oz 6/17.

Apply 240 lbs urea + NBPT according to N-STaR and establish permanent flood.

Rainfall amount 6.8” since planting.

Lonoke CL151 5-6-14

Drill

65 lbs/acre

CruiserMaxx Rice + Zinc

5-19-14

16 plants ft2

Mid-Tiller Recommendation at planting:

Roundup 1 qt + Command 1 pt

1st post recommendation:

Newpath 4 oz + RiceBeaux 2.5 qts + Command 8 oz 5/27.

Applied 100 lbs DAP 5/28.

2cd post recommendation:

Clearpath .5 lb + Propanil 2 qts 6/10.

Apply 200 lbs urea + NBPT according to N-STaR and establish permanent flood 6/17.

The field received a rainfall total of 7.1” since planting.

Prairie Roy J 4-17-14

Water-Seeded

115 lbs/acre

No Treatment

4-29-14

30 plants ft2

½” IE Burndown and pre-emergence herbicides for Cattails in a no-till overwintered continual flooded field. Recommendation:

3 qt Roundup Power Maxx + 1 oz Sharpen + 1 pt MSO applied at planting.

Due to flooding in the wildlife refuge the field has had a permanent flood all year.

Applied urea 100 lbs 5/27.

Applied urea 100 lbs + DAP 100 lbs 6/3.

Applied Rebel EX 20 oz + 1 qt COC 6/18.

Applied 100 lbs urea 6/19.

St Francis Mermentau 4-11-14

Drill

78 lbs/acre

CruiserMaxx Rice

4-29-14

27 plants ft2

Mid-Tiller Recommendation at planting.

Roundup 1 qt + Command 12.8 oz + League 3.2 oz –

Herbicides were continually activated by rainfall totaling 5.1” and provided excellent weed control for 45 days.

1st post recommendation:

Facet 0.33 lb + League 3.2 oz + 1 qt crop oil applied 5/28. Apply 270 lbs urea fertilizer + NBPT according to N-STaR and establish permanent flood 5/29.

Few pigweeds are now dying from the flood.

The field has received 10.25” rainfall since planting.

Monroe Roy J 5-8-14

Drill

90 lbs/acre

Apron Maxx

5-18-14

17 plants ft2

Mid-Tiller Recommendation at 3 leaf stage:

Superwham 3 qts + League 3.2 oz + COC 1 pt applied 5/23.

Applied 100 lbs DAP according to soil test 5/8.

2cd post recommendation:

Facet .33 lb + League 3.2 oz + crop oil 1 pt.

Apply 190 lbs urea + NBPT and establish permanent flood.

Total rainfall since planting 11.3”.


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