The Northwest District in Iowa led all districts in 2017 with 2.10 million tons of corn silage produced, according to estimates released by the USDA, National Agricultural Statistics Service. This accounted for 30 percent of the State total production. The Northeast District produced 1.83 million tons of silage, representing 26 percent of the State total.
The highest silage yields were recorded in the Northwest District, where yields averaged 23.5 tons per acre. The East Central and Northeast districts rounded out the top 3 yielding districts with 22.5 and 22.0 tons per acre, respectively.