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03
May
2012
Corn and Grain Sorghum Research Verification Program Weekly Update – April 30, 2012
Author: Kevin Lawson, Program Associate - Corn & Grain Sorghum Verification

Corn – All of the fields except for Lawrence/Randolph have received a sidedress fertilizer application.  Weed control was also going on this past week.  Fields received anywhere from 0.65 inches of rain in Prairie County to no rain in Clay County.  Most of the fields look good, but the cold weather has really slowed down the growth.  Low 40’s were very common a couple of days in a row on all the fields, with highs on those days only getting into the high 60’s.  All the fields could use another rain.  When weed control, and fertilization are done on the fields, I am recommending that producers go ahead and get power units in place and pull polypipe.  The lack of rain combined with the high winds is drying fields very quickly and producers need to be ready to irrigate on a moment’s notice.  With bean and cotton planting going on it will be better to have everything in place to start irrigation.

Grain Sorghum – The grain sorghum fields are taking the cold weather a little harder than the corn.  They are just sitting there needing the warmth to really get kicked off.  The non irrigated field in St Francis County got fertilizer and weed control, and now just needs some good rains.  The Desha County field finally come out of the purpling but then got a pretty good shot of Gramoxone and really needs some help to recover.

April 30, 2012 CGSRVP Weekly Update
 Corn
CountyHybrid StageHeightGeneral Information
ArkansasTerral REV 28HR20V46 inField received 3.6 pts of Halex GT plus 1.5 qts of Atrazine on April 18. 290 lbs of Urea (133 units N) was applied by air on April 19. Field then received 0.50 inches of rain on April 20.
ClayPioneer P2088HRV34 inApplied approximately 50 gallons of 32% on April 20. Field is still clean so will scout again next week for weed control.
DeshaDeKalb DKC 66-96V57 inField received 0.60 inches of rain on April 20. Recommended Dual, Atrazine plus Glyphosate for weed control.
DrewDeKalb DKC 64-69V47 inApplied 0.75 qts of Atrazine plus 25 oz of Touchdown on April 19 by air. Recommended applying Urea. Field received 0.40 inches of rain on April 20.
Lawrence/
Randolph
Pioneer 2088HRV34 inField is finally emerging in areas where the soil moisture didn’t allow for germination. Plant stands averaged 32,800 plants per acre. Recommended applying 275 lbs of Urea (127 units N) before next rain chances. Field received 0.20 inches of rain on April 20.
PoinsettArmor 1262DPROV46 inApplied 3.6 pts of Halex GT plus 1.5 qts of Atrazine on April 19. 275 lbs of Urea (125 units N) was applied on April 20. The field received 0.25 inches of rain on April 20. Recommended to prepare polypipe for irrigation.
PrairieDeKalb DKC 64-69V58 inApplied 1.5 qts of Atrazine plus 1.5 qts of glyphosate on April 26. The field received 0.65 inches of rain on April 20. Recommended to prepare power unit and polypipe for irrigation.
 Grain Sorghum
DeshaPioneer 84G62V44 inField received a heavy drift of gramoxone on April 17. The plants were brown by April 20, but the new leaves were green in the whorl. On April 24, two new green leaves had emerged and the field looked better. Recommended to go ahead and apply 150 lbs of Urea (69 units N) and 100 lbs of Ammonium Sulfate (21 units N). Field received 0.40 inches of rain on April 20.
St FrancisPioneer
83G66
V43.5 inApplied 240 lbs of Urea (110 units N) on April 19. Field received 0.40 inches of rain on April 20. Applied 1.3 qts of Atrazine plus oil on April 24.


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