Yost/Sorenson Corn Plot

This plot is north and west of Wheaton. Early frost hit this field pretty hard and obviously affected the 100 day corn hybrids. Planted at 34,500/acre.

Pioneer P8906am1        131.9 bu/a     16.7%     52.7#
Pioneer P9188amx        144.0 bu/a     17.2%     52.2#
Pioneer P9305am          126.9 bu/a     19.8%     52.5#
Pioneer P9366amx        130.6 bu/a     18.4%     52.3#
DeKalb DKC43-48       146.4 bu/a     18.4%     52.9#
Pioneer P9675amx        149.2 bu/a     19.7%     53.6#
Pioneer P9526amxt       149.4 bu/a     19.6%     53.5#
Pioneer P9538amxt       144.7 bu/a     18.9%     51.6#
Pioneer P9644amx        128.4 bu/a     21.2%     53.5#
DeKalb DKC46-20       131.9 bu/a     18.6%     53.3#
Pioneer P9703amx        152.9 bu/a     21.2%     52.1#
Pioneer P9917amx        148.2 bu/a     20.6%     54.6#
Pioneer P9834amx        144.4 bu/a     21.9%     50.1#
Pioneer 9834/9917mix  148.6 bu/a    20.0%      51.8#
DeKalb DKC48-12        134.9 bu/a    19.9%     51.6#
Pioneer P0193amx         112.9 bu/a    24.3%     49.2#
Pioneer P0157amx         130.1 bu/a    24.4%     52.7#
DeKalb DKC50-84        127.2 bu/a    21.0%     52.0#
Inotech 97 day                135.6 bu/a    18.6%     50.1#

The highest yielder was a new Pioneer 97 day hybrid P9703amx at 152.9 bu/a. By the yields you can tell this field had a rough go of it with either early season rain or late season frost. The Pioneer P9188amx in red above is a new 91 day that clearly is better than our old 90 day hybrids. It stands well with god drydown. The other thing that stuck out in the plot was the test weight on the P9917amx along with a pretty dry moisture for a 99 day corn. This year P9917amx is acting more like a 95-96 day corn. We also mixed P9917 with P9834, a low test weight and wet hybrid from Pioneer and you'll notice that in this plot, the P9917's test weight and moisture tended to drag the whole mix towards a better result.