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02
May
2014
Arkansas Corn and Grain Sorghum Weekly Update – May 2, 2014
Author: Kevin Lawson, Program Associate - Corn & Grain Sorghum Verification

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

The first field that I got to visit this week was in Clay County.  The rain gauge read 6.5 inches of rain from the April 27 storm.  As we entered the field, there was a little bed erosion, but nothing that couldn’t be taken care of with some row middle plowing.  The problem came when we reached the middle of the field.  The heavy rains had rushed across the field totally destroying the beds and flattening the emerged corn.  The seed and roots were completely exposed and it was impossible to fix this part of the field.  The worst of the damage was over half of the field.  After some discussion, we decided to replant the field.  The other verification fields were in much better shape, but the cold weather was slowing growth.  Next week we will begin to look at timing sidedress nitrogen and herbicide applications with the next chance of rain.

County

Hybrid

Growth Stage Weekly Rain

Comments

———-Corn———-

Arkansas

DKC64-69 VT3P

V1

1.70 in

Field emerged on April 27.  Final plant stand is 34,000 plants per acre.  (Scouted May 1)
Clay

 6.50 in

Excessive rain ran across the field destroying the stand.  Decided to replant the field. (Scouted April 29)
Jefferson DKC62-08 SS

V1

0.70 in

Field emerged on April 25. (Scouted April 30)
Lee DKC66-87 VT2P

V2

2.50 in

Field emerged on April 25. Final plant stand is 31,500 plants per acre. (Scouted April 30)
Lonoke

Armor 1330

V2

1.25 in

Final plant stand is 33,500 plants per acre. (Scouted May 1)
Mississippi Pioneer 2089YHR

V2

1.45 in

Field emerged on April 22.  (Scouted May 1)
St Francis Terral 26BHR50

V2

3.50 in

Final plant stand is 36,500 plants per acre. (Scouted April 30)
White Armor 1550PRO

V3

1.45 in

Final plant stand is 31,000 plants per acre. (Scouted April 30)

———–Grain Sorghum———-

Chicot Dyna-Gro 765B

0.20 in

Field is starting to emerge.  Stand counts will be taken next week.
Prairie Pioneer 84P80

1.45 in

Field should emerge this weekend.(Scouted April 30)

 

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

Corn is really starting to grow due to warmer weather.  Nitrogen fertilizer is being applied as well as herbicides.   We are near 100% complete in terms of planting corn.

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

Field work came to a stop last Sunday with 1 to 2 inches of rainfall. Growers were attempting to get back into corn fields to resume herbicide applications with some nitrogen being applied. Sorghum planting is at a standstill due to river flooding. Corn planting is at 95% complete and sorghum at 35% complete.

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

Lawrence County – Like many areas of the state we received plenty of rain.  In Walnut Ridge we received close to 4 inches, but in other parts of the county close to 7 inches fell.  Many corn fields had large portions of them under water.  Lots of water all around, but no place for it to go as rivers and ditches were overflowing. At least the weather forecast is not calling for rain in the next few days and I hope this will help in getting our overabundance of water under control.

Craighead County – We 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.  Producers should be able to get back in the fields sometime this weekend.

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

Most producers are waiting to get back in the field.  All of the corn fields have been seeded. Some producers will begin sidedressing nitrogen next week. Preemergence and post emergence herbicide applications are providing excellent weed control. Cool wet weather has made zinc deficiency symptoms more evident. Foliar zinc applications will be applied in combination with post emergence herbicide applications.

Heat Units

The cold front that came through middle of the week after the storms really dropped the temperatures.  We began the week with highs in the 80’s but finished the week with highs in upper 50’s to low 60’s. As a result, this week all parts of the state are below the 30 year average temperatures for the same week.  Verification fields are taking about 250 heat units to get to V2.

Region of the state(city)

Heat Units Accumulated April 25 – May 2 30 Year Average Heat Units April 25 – May 2 Total Heat Units Since March 9

30 Year Average Heat Units Since March 9

Southeast Arkansas (McGehee, AR)

101

124 603

660

Central Arkansas (Des Arc, AR)

90

114 515

568

Northeast Arkansas (Jonesboro, AR)

83

96 483

504

River Valley (Morrilton, AR)

92

96 582

538


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