The University of Wisconsin corn hybrid trials are a good indicator of the type of year experienced by farmers around the state. These trials tend to be planted early and harvested at optimal times, so they are are a good estimate of potential yields at various locations over an entire growing season (see map).
Grain yields were above the 10-year average at 9 of 12 locations (Table 1). Yield was below the 10-year average at Arlington, Hancock and Valders. For example, at Arlington during the 10-year period between 2001 to 2010, a total of 1988 hybrids were tested with an average yield of 216 bu/A. At Arlington during 2011, 150 hybrids averaged 194 bu/A. The 2011 yield was 10% below the previous 10-year average. The highest yielding locations were Janesville and Lancaster at 230 and 231 bu/A averaged over 150 hybrids. The lowest yielding location was Valders at 151 bu/A averaged over 144 hybrids tested. The location with the greatest increase was Spooner, which yielded 17% above the 10-year average.
Table 1. Grain summary of locations in the 2011 Wisconsin corn performance trials. Yield is in bushels per Acre at 15.5% moisture.
Silage yields were above the 10-year average for 8 of 9 sites (Table 2). For example at Arlington during the period between 2001 and 2010, a total of 642 hybrids produced an average yield of 9.6 T/A. In 2011, 62 hybrids produced an average yield of 9.2 T/A. This was a 4% decrease over the previous 10-year average. The highest yielding location was Galesville at 9.9 T/A. The location with the greatest increase was Coleman with an 18% increase over the previous 10-year average.
Table 2. Silage summary of locations in the 2011 Wisconsin corn performance trials. Yield is in Tons dry matter per Acre.