Corn and Grain Sorghum Research Verification – Kevin Lawson (Corn & GS Verification Coordinator)
Irrigation started on the majority of the corn verification fields this week. Irrigation is critical over the next couple of weeks as pollination will be starting soon.
|
County |
Hybrid |
Growth Stage |
Weekly Rain |
Comments |
|
———-Corn———- |
||||
| Arkansas | DKC64-69 VT3P |
V19 |
0.00 |
Field was being prepared to irrigate. (Scouted June 19) |
| Clay | DKC64-83 VT3P |
V7 |
0.40 |
Recommended irrigation on June 21. (Scouted June 17) |
| Jefferson | DKC62-08 SS |
V17 |
0.70 |
Field was irrigated on June 16. Recommended irrigation on June 24. (Scouted June 16) |
| Lee | DKC66-87 VT2P |
V18 |
0.45 |
Applied 100 lbs of Urea (46 units N) on June 13. Field was irrigated on June 18. Recommended irrigation on June 24. (Scouted June 18) |
| Lonoke | Armor 1330 |
VT |
0.00 |
Field was irrigated on June 18. Recommended irrigation on June 25. (Scouted June 19) |
| Mississippi | Pioneer 2089YHR |
V17 |
0.00 |
Applied 100 lbs of Urea (46 units N) on June 14. Field was irrigated on June 17. Recommended irrigation on June 21. (Scouted June 17) |
| St Francis | Terral 26BHR50 |
VT |
0.75 |
Applied 100 lbs of Urea (46 units N) on June 18. Recommended irrigation. (Scouted June 19) |
| White | Armor 1550PRO |
V17 |
0.00 |
Field was irrigated on June 17. Recommended irrigation on June 23. (Scouted June 18) |
|
———–Grain Sorghum———- |
||||
| Chicot | Dyna-Gro 765B |
V14 |
2.30 |
Field is still progressing well. (Scouted June 16) |
| Prairie | Pioneer 84P80 |
V14 |
0.00 |
Field is still progressing well. (Scouted June 19) |
Average CRVP Growth and Development vs. 2014 CRVP.
|
Corn Stages |
5 Year Avg CRVP Days to Stages |
2014 Avg CRVP Days to Stages |
5 Year Avg CRVP Height (in) |
2014 Avg CRVP Height (in) |
Avg CRVP Heat Units (2012 – 2013) |
Avg CRVP Heat Units 2014 |
| Planting |
0 |
0 | 0 | 0 | — |
— |
| VE |
10 |
10 | 0 | 0 | 145 |
150 |
| V2 |
18 |
17 | 3 | 2 | 251 |
266 |
| V4 |
28 |
26 | 6 | 5 | 425 |
463 |
| V6 |
37 |
36 | 12 | 12 | 612 |
633 |
| V8 |
45 |
43 | 22 | 18 | 791 |
766 |
| V10 |
51 |
48 | 36 | 34 | 922 |
905 |
| V12 |
56 |
53 | 52 | 49 | 1036 |
1046 |
| V14 |
61 |
58 | 67 | 61 | 1155 |
1167 |
| V16 |
65 |
63 | 82 | 73 | 1256 |
1281 |
| R1 |
72 |
106 |
1452 |
|||
| R2 |
78 |
115 |
1615 |
|||
| R3 |
84 |
115 |
1811 |
|||
| R4 |
91 |
115 |
2005 |
|||
| R5 |
98 |
115 |
2199 |
|||
| R6 |
122 |
115 |
2919 |
|||
| Harvest |
145 |
115 |
— |
— |
Southeast Arkansas Update – Wes Kirkpatrick (Desha County) & Kevin Norton (Ashley County)
Most corn has tasseled with some brown silk. Some irrigation has recommenced on sandy soils following the rains of last week.
Central Arkansas Update – Brent Griffin (Prairie County)
Prairie County growers were busy laying out poly pipe and beginning irrigation. A majority of the crop has received the pre-tassel application of urea. Many fields are still showing the effects of recent heavy rain and wind damage.
Northeast Arkansas Update – Herb Ginn (Lawrence County) & Branon Thiesse (Craighead County)
Craighead County- Boy, what a difference a week makes. We have progressed from excess water a week ago to rolling out the poly pipe and beginning to irrigate. Corn is in or has entered the maximum water use stage. Early planted fields are beginning to tassel and silk, while others are receiving their pre-tassel nitrogen applications. Fields affected by strong winds two weeks ago where the plants were not broken have uprighted themselves nicely. Most of the damaged corn seemed to be centered around the Lake City area in Eastern Craighead County.
Lawrence County – Last week we were worried about too much rain, and this week poly pipe has been rolled out and corn is being watered. The majority of our corn has tasseled and several fields are showing silks. The remaining corn is very close to tasseling. Grain sorghum in the county is at various growth stages between V8 and close to boot.
River Valley Update – Kevin VanPelt (Conway County) & Hank Chaney (Faulkner County)
Everything is looking good in the River Valley. Most of the crop is tasseling and producers have started irrigation.
Heat Units
Heat units were back up this week closer to the 30 year average.
|
Region of the state(city) |
Heat Units Accumulated June 14 – June 20 |
30 Year Average Heat Units June 14 – June 20 |
Total Heat Units Since March 9 |
30 Year Average Heat Units Since March 9 |
| Southeast Arkansas (McGehee, AR) |
202 |
199 |
1,808 |
1,849 |
| Central Arkansas (Des Arc, AR) |
193 |
198 |
1,626 |
1,732 |
| Northeast Arkansas (Jonesboro, AR) |
194 |
185 |
1,610 |
1,559 |
| River Valley (Morrilton, AR) |
197 |
182 |
1,710 |
1,578 |
