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16
May
2014
Arkansas Corn and Grain Sorghum Weekly Update – May 16, 2014
Author: Kevin Lawson, Program Associate - Corn & Grain Sorghum Verification

Corn and Grain Sorghum Research Verification – Kevin Lawson (Corn & GS Verification Coordinator)

Rain was the big story of this week.  The fields got anywhere from 2.75 to 3.75 inches of rain.  Jefferson and Chicot Counties were scouted before the rain came through.  Fields are starting to turn around and look better.

County

Hybrid

Growth Stage

Weekly Rain

Comments

———-Corn———-

Arkansas DKC64-69 VT3P

V5

3.70

Herbicide is working well, and the field is taking up the sidedress fertilizer.  (Scouted May 15)
Clay DKC64-83 VT3P

VE

3.30

Field emerged on May 15.  (Scouted May 15)
Jefferson DKC62-08 SS

V4

1.00

Recommended atrazine plus glyphosate for weeds. (Scouted May 12)
Lee DKC66-87 VT2P

V5

3.30

Applied 250 lbs of Urea (115 units N).  (Scouted May 14)
Lonoke Armor 1330

V5

2.75

Recommended 100 lbs of ammonium sulfate + 180 lbs of Urea (104 units N).  Also recommended 1.5 qts atrazine, 1.3 pts of Dual + crop oil.  (Scouted May 15)
Mississippi Pioneer 2089YHR     Field was too wet to get to and scout this week.
St Francis Terral 26BHR50

V5

2.70

Field is awaiting fertilizer.  (Scouted May 15)
White Armor 1550PRO

V5

3.40

Recommended 3.6 pts of Halex GT plus 1.5 qts of atrazine.  (Scouted May 15)

———–Grain Sorghum———-

Chicot Dyna-Gro 765B

V5

1.25

Final plant stand is 78,500 plants per acre.  (Scouted May 12)
Prairie Pioneer 84P80

V4

3.75

Final plant stand is 67,000 plants per acre.  Recommended 1.5 qts of atrazine plus oil. (Scouted May 16)

 

Southeast Arkansas Update – Wes Kirkpatrick (Desha County) & Kevin Norton (Ashley County)

Many fields have leaf burn from fertilizer applications. Following Wednesday’s rainfall, the corn should really start growing. Some zinc deficiencies are showing up in a few fields.  The corn in Ashley County is really starting to take off.

Central Arkansas Update – Brent Griffin & Michael Paskewitz (Prairie County)

The corn and weeds responded quickly to the 80+degree days. Producers were only able to work in the field for 1 day this week as rainfall and wind prevented herbicide applications to both corn and grain sorghum. Corn fields not treated with some type of herbicide are becoming quite grown up in weeds. Aerial applications of nitrogen occurred Monday for corn and grain sorghum before rainfall. Flooding in the White and Cache river bottoms has put an extended delay on grain sorghum planting.

Northeast Arkansas Update – Herb Ginn (Lawrence County) & Branon Thiesse (Craighead County)

Craighead- The county received 2-3 inches of rain out of the storm system that moved through on Sunday night and Monday. We were very fortunate as surrounding counties received much greater amounts. There was very little evidence of hail damage, although the weather service reported some may have fallen with this system. Flooded fields near drainage ditches and streams are causing problems with crops that are already emerged. Some fields are completely under water and some just on the ends. Depending on how rapidly the water recedes will determine crop damage. Warmer drier weather for the next 10 days will be a welcomed.   They should be able to get back in the fields sometime this weekend.

Lawrence – Rain, rain, and more rain has been the story for this week with close to 1.5 inches having accumulated by Wednesday morning in Walnut Ridge. More rain is predicted in the forecast along with much cooler temperatures for the next few days.

River Valley Update – Kevin VanPelt (Conway County) & Hank Chaney (Faulkner County)

We’ve had 6 days of rain and unseasonably cool temperatures. The fields are saturated with water standing in some. Needless to say, but the conditions this last week have not been favorable for growing corn. It doesn’t look like any more rain in the immediate forecast, but we need the heat units turned back up!

Heat Units

The beginning of this week was great for heat units, but the end of the week was terrible.  We went form accumulating above 25 heat units a day to accumulating 3 to 5!  That is a huge difference and it shows up in the week totals.  Although I feel like I have been saying this all year, hopefully we will be getting back up to the 30 year averages soon.

 Region of the state(city)

Heat Units Accumulated May 9 – May 16

30 Year Average Heat Units May 9 – May 16

Total Heat Units Since March 9

30 Year Average Heat Units Since March 9

Southeast Arkansas(McGehee, AR)

132

145

897

942

Central Arkansas (Des Arc, AR)

112

142

775

837

Northeast Arkansas (Jonesboro, AR)

115

124

758

738

River Valley (Morrilton, AR)

117

123

849

771


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