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11
Apr
2014
Arkansas Corn and Grain Sorghum Weekly Update – April 11, 2014
Author: Kevin Lawson, Program Associate - Corn & Grain Sorghum Verification

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

The second of eight anticipated corn verification fields was planted on Saturday April 5 in White County.  The field is 40 acres and planted with Armor 1550PRO at 34,000 seeds per acre.  I visited the field on April 10 and the seed had just germinated.  Between April 5 and April 10, the field had accumulated 39 heat units.  At these temperatures I estimate it will emerge in around 10 days.  The first field we planted, in Clay County, has also germinated.  As of April 8 it had accumulated around 56 heat units, so it is about a week off from emergence.  I am hoping we miss this rain this weekend and get the rest of the fields planted.

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

Corn that has been planted is starting to emerge.  Heavy amounts of rain earlier this week have kept producers out of the fields this week.  If it doesn’t rain this weekend, producers can be back in the field around Monday.  About 70% of the corn acres in Ashley County have been planted and about 50-70% in Desha County.  As it gets later in the year, some producers are starting to discuss about switching over from corn to soybeans.

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

Approximately 25% of corn acres have been planted.  Corn that was planted two weeks ago has emerged but is slightly uneven.  The southern half of the county is very wet, but we hope to resume field work on Saturday.  Scattered fields from Hickory Plains to Des Arc are being planted today (Thursday April 10). No grain sorghum has been planted at this time.

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

We still have about 20% of the corn planted.  Acres that were planted several weeks ago are just now spiking.  Rice is just spiking as well.  Unfortunately most fields are far too wet to do anything with.  We may be able to get back into the fields Monday if no further precipitation occurs.  Fields that usually dry quicker than others are still too wet for corn planting to start again.  Hopefully the warm temperatures will hold to aid in germination and dry the soil.  The Lawrence County hybrid corn plot has had to be pushed back again due to wet field conditions.

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

The first corn planted two weeks ago emerged this week, but some rain over the weekend slowed planting down. Everyone should finish up by this weekend though. We’ve finally had a string of warmer days this week and with overnight lows predicted to only be in the 60’s by the end of the week, we expect to see everything up and going by next weekend.

Heat Units

A cold start to the week brought down accumulated heat units for the week.  We started with about 3 heat units per day but ended up the week with some temperatures in the high 70’s and low 80’s, which gave us approximately  15 heat units.  Put it all together though and we really took a dip from the 30 year average for this same week.   This cool weather is making for slow emergence and slow growth.

 

Region of the state(city)

Heat Units Accumulated April 5–April 11

30 Year Average Heat Units April 5– April 11

Total Heat Units Since March 9

30 Year Average Heat Units Since March 9

Southeast Arkansas(McGehee, AR)

55

83

306

330

Central Arkansas         (Des Arc, AR)

61

71

250

269

Northeast Arkansas(Jonesboro, AR)

54

67

224

251

River Valley    (Morrilton, AR)

68

72

309

279


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