RESULTS AND DISCUSSION Plots were planted in a timely manner each year of the trial, although planting was delayed in 2012 until May 15 due to wet conditions (Table 1). The hybrid DKC 48- 37, which has resistance to European corn borer, corn rootworm and glyphosate, was planted each year. Figures 1 & 2 show the planters used at each site. When setting planting populations, care was taken to reach target populations as closely as possible but settings were also selected so that populations could be matched as closely as possible between row spacings.
The growing season in 2010 started out warm but a hard freeze was experienced May 9th. By August, temperatures were warmer than average, and overall moisture was adequate throughout the growing season. In 2011, the season started slightly cooler than average, but extreme heat was experienced in early June, and July was hot and humid. Both sites also experienced hail in 2011 (Welcome on 7/5/11 and Wilmont on 7/10/11). Damage appeared uniform across the plot at Wilmont, and likely had minimal impact on yield at either site. Little precipitation was received in the fall from August on in 2011. In 2012, precipitation was above average in May, but drought conditions followed for the rest of the growing season, with the Welcome site being under an “Extreme Drought” by the latter part of the season