The national average corn yield in 2010 is projected to be 147.2 bu./acre, a decrease of 7% from the U.S. corn yield of 152.8 bu. in 2010. The 2011 U.S. corn yield compares to other recent average corn yields of 164.7 bu. in 2009, 153.9 bu. in 2008, and 150.7 bu. in 2007. The average corn yield in Minnesota in 2011 is estimated to be 156 bu./acre, which is down 12% from the record yield of 177 bu./acre in 2010. The projected 2011 Minnesota corn yield is also well below other recent state average corn yields of 174 bu. in 2009 and 164 bu. in 2008, but above the 146 bu. in 2007. Iowa had an estimated corn yield of 172 bu./acre in 2011, up from an average yield of bu. in 2010, and below the 182-bu. average yield in 2009. The average 2011 corn yields in other major corn-production states were Nebraska at 160 bu., Illinois at 157 bu. and Indiana at 146 bu.
The estimated U.S. average soybean yield in 2011 is 41.5 bu./acre, well below the 2010 U.S. soybean average yield of 43.5 bu., and the U.S. record soybean yield of 44.0 bu. in 2009. The projected 2011 average U.S. soybean yield is higher than the average soybean yield of 39.7 bu. in 2008, and similar to the 41.7 bu. in 2007. The estimated average soybean yield in Minnesota for 2011 is 38.5 bu., 14% below the state record soybean yield of 45 bu./acre, set in 2010 and 2005. The 2011 soybean yield in Minnesota was also below other recent soybean yields of 40.0 bu./acre in 2009, and 42.5 bu. in 2007, but slightly above the 38.0 bu. in 2008. The average soybean yield for 2011 in Iowa was estimated at 50.5 bu./acre, which was just below the 2010 and 2009 average yield level of 51 bu. Estimated average 2011 soybean yields in other major production states were Nebraska at 53.5 bu., Illinois at 47.0 bu. and Indiana at 45.0 bu.
Editor’s note: Kent Thiesse is a former University of Minnesota Extension educator and now is Vice President of MinnStar Bank, Lake Crystal, MN. You can contact him at 507-726-2137 or via e-mail at firstname.lastname@example.org.