Of the cereals, the corn crop is the most important in Iowa. The acreage devoted to this crop in 1897, according to Mr Sage1, amounted to 8,043,390. The average yield was 39 bushels per acre; total product, 313,692,210 bushels, having a market value of $43,916,904. Oats rank second, the re having been 5,825,000 acres with a total yield of 73,450,000 bushels, having a market value of $8,814,000. Wheat ranks third, with a total acreage of 751,708, total yield 10,398,785 bushels, with a value of $6,027 853.
Pammel, L. H.
"Weeds of corn fields.,"
Bulletin: Vol. 4
, Article 1.
Available at: https://lib.dr.iastate.edu/bulletin/vol4/iss39/1