In this episode, Dr. Aaron Wilson provides a weather update for this time of the season. Access the video here: https://www.youtube.com/watch?v=JhRV84MKUaM You can also read more from Aaron in this week’s newsletter article titled "Wildfire Smoke and Scattered Storms Share the Mid-Summer Skies over Ohio.”
Field Progress Updates
Good progress has been achieved by our two crops and across all three research locations. The Western location has corn ranging from the V6 (6 collared leaves) to R1 (silking) stages, with the largest growing degree day (GDD) accumulation among the three sites, anywhere between 712 and 1803 GDDs this season. Soybeans at this location are between V2 (2 trifoliates) and R3 (beginning pod), with the earliest planting dates already well past the beginning of reproductive stages (Table 1).
In the Wooster location, corn first planting reached the VT (tassel) stage, and the last planting date was still at the V7 stage. Soybeans’ first planting date in Wooster was also at the R3 stage, whereas the latter two planting dates remained in vegetative stages, V4-V7 (Table 1). In the Northwest location, corn stages ranged from V6 to R1, while soybeans ranged from V3 to R3 (Table 1). The Wooster and Northwest locations both received good precipitation in the last period (July 6 – July 19), 2.74 and 1.69 inches, respectively, with virtually no rain for Western.
|
Location |
Precipitation, Inches |
2-inch soil Temperature |
Air Temperature (July 6 – July 19) |
Planting dates |
GDDs (Cumulative) |
Corn Growth Stage |
Soybean Growth Stage |
|
Western, Clark County |
0.00 |
Min: 75.3°F Max: 87.6°F Mean: 81.02°F |
Min: 64.8°F Max: 95.6°F Mean: 77.7°F |
April 10 April 27 May 15 June 3 June 24 |
1802.7 1586.2 1472.5 1168.8 711.9 |
R1 VT V15 V13 V6 |
R3 R3 R2 V7 V2 |
|
Wooster, Wayne County |
2.74 |
Min: 73.4°F Max: 79.9°F Mean:76.5 °F |
Min:58.9 °F Max:90.4 °F Mean: 74.4°F |
April 13 May 4 May 15 June 1 June 16 |
1485.6 1310.1 1265.7 1049.4 755 |
VT V15 V14 V11 V7 |
R3 R2 R1 V7 V4 |
|
Northwest, |
1.69 |
Min: 70.9°F Max: 87.3°F Mean:77.7 °F |
Min: 56.9°F Max:93.3 °F Mean: 76.4°F |
April 13 May 18 May 29 June 8 June 19 |
1654.9 1368.2 1205 1025.3 775.9 |
R1 V12 V11 V10 V6
|
R3 R2 V9 V7 V3 |
Field conditions in the next few weeks, especially adequate temperatures, precipitation, and low pest pressure, will be critical to provide the conditions needed for sustained crop growth and development, good pollination, and good grain/seed development in both crops. Continue following ‘Battle for the Belt 2.0’ this season to learn more and get further updates! You can find the full video playlist of Battle for the Belt on the Ohio State Agronomy YouTube channel.