Charting 150 Years Of Corn, Wheat, & Soy Yields In America
America can grow three-times as much corn from a single acre of land as it can wheat and soy. This is the story of how corn became king in America.
To understand how this happened, Visual Capitalst’s Pallavi Rao visualizes the yields (measured in bushels per acre) for all three crops over the last century.
Data for this graphic is sourced from the National Agricultural Statistics Service, maintained by the U.S. Department of Agriculture.
The Corny American Love Story
In 2023, America produced 500 million metric tons of corn, a figure so astoundingly large, it compares to the weight of 7,000 Great Pyramids of Gaza. And all of that corn was grown on 92 million acres of land—an area bigger than Malaysia.
But America’s colossal corn-producing prowess didn’t always exist, as seen in the yield data from 1866.
| Year | Corn Yield | Wheat Yield | Soybean Yield |
|---|---|---|---|
| 1866 | 24.3 | 11.0 | N/A |
| 1867 | 24.7 | 12.6 | N/A |
| 1868 | 26.2 | 12.9 | N/A |
| 1869 | 21.8 | 13.7 | N/A |
| 1870 | 29.3 | 12.1 | N/A |
| 1871 | 27.2 | 12.2 | N/A |
| 1872 | 29.4 | 11.8 | N/A |
| 1873 | 22.9 | 12.9 | N/A |
| 1874 | 22.2 | 13.0 | N/A |
| 1875 | 27.7 | 11.1 | N/A |
| 1876 | 26.7 | 10.9 | N/A |
| 1877 | 25.8 | 14.1 | N/A |
| 1878 | 26.2 | 13.5 | N/A |
| 1879 | 28.2 | 13.0 | N/A |
| 1880 | 27.3 | 13.2 | N/A |
| 1881 | 19.8 | 11.0 | N/A |
| 1882 | 26.5 | 15.1 | N/A |
| 1883 | 24.2 | 12.3 | N/A |
| 1884 | 28.3 | 14.8 | N/A |
| 1885 | 28.6 | 11.4 | N/A |
| 1886 | 24.1 | 14.1 | N/A |
| 1887 | 21.9 | 13.3 | N/A |
| 1888 | 29.1 | 12.1 | N/A |
| 1889 | 29.5 | 14.0 | N/A |
| 1890 | 22.1 | 12.2 | N/A |
| 1891 | 29.6 | 16.5 | N/A |
| 1892 | 24.7 | 14.2 | N/A |
| 1893 | 23.8 | 12.4 | N/A |
| 1894 | 20.2 | 13.5 | N/A |
| 1895 | 28.0 | 13.9 | N/A |
| 1896 | 30.0 | 12.8 | N/A |
| 1897 | 25.4 | 14.0 | N/A |
| 1898 | 26.8 | 15.2 | N/A |
| 1899 | 28.0 | 12.5 | N/A |
| 1900 | 28.1 | 12.2 | N/A |
| 1901 | 18.2 | 15.0 | N/A |
| 1902 | 28.5 | 14.9 | N/A |
| 1903 | 26.9 | 13.7 | N/A |
| 1904 | 28.2 | 12.9 | N/A |
| 1905 | 30.9 | 15.2 | N/A |
| 1906 | 31.7 | 16.0 | N/A |
| 1907 | 27.2 | 14.2 | N/A |
| 1908 | 26.9 | 14.3 | N/A |
| 1909 | 26.1 | 15.5 | N/A |
| 1910 | 27.9 | 13.7 | N/A |
| 1911 | 24.4 | 12.4 | N/A |
| 1912 | 29.1 | 15.1 | N/A |
| 1913 | 22.7 | 14.4 | N/A |
| 1914 | 25.8 | 16.1 | N/A |
| 1915 | 28.1 | 16.7 | N/A |
| 1916 | 24.1 | 11.9 | N/A |
| 1917 | 26.2 | 13.2 | N/A |
| 1918 | 23.9 | 14.8 | N/A |
| 1919 | 26.8 | 12.9 | N/A |
| 1920 | 29.9 | 13.5 | N/A |
| 1921 | 27.8 | 12.7 | N/A |
| 1922 | 26.3 | 13.8 | N/A |
| 1923 | 27.8 | 13.3 | N/A |
| 1924 | 22.1 | 16.0 | 11.0 |
| 1925 | 27.4 | 12.8 | 11.7 |
| 1926 | 25.7 | 14.7 | 11.2 |
| 1927 | 26.4 | 14.7 | 12.2 |
| 1928 | 26.3 | 15.4 | 13.6 |
| 1929 | 25.7 | 13.0 | 13.3 |
| 1930 | 20.5 | 14.2 | 13.0 |
| 1931 | 24.5 | 16.3 | 15.1 |
| 1932 | 26.5 | 13.1 | 15.1 |
| 1933 | 22.8 | 11.2 | 12.9 |
| 1934 | 18.7 | 12.1 | 14.9 |
| 1935 | 24.2 | 12.2 | 16.8 |
| 1936 | 18.6 | 12.8 | 14.3 |
| 1937 | 28.9 | 13.6 | 17.9 |
| 1938 | 27.8 | 13.3 | 20.4 |
| 1939 | 29.9 | 14.1 | 20.9 |
| 1940 | 28.9 | 15.3 | 16.2 |
| 1941 | 31.2 | 16.8 | 18.2 |
| 1942 | 35.4 | 19.5 | 19.0 |
| 1943 | 32.6 | 16.4 | 18.3 |
| 1944 | 33.0 | 17.7 | 18.8 |
| 1945 | 33.1 | 17.0 | 18.0 |
| 1946 | 37.2 | 17.2 | 20.5 |
| 1947 | 28.6 | 18.2 | 16.3 |
| 1948 | 43.0 | 17.9 | 21.3 |
| 1949 | 38.2 | 14.5 | 22.3 |
| 1950 | 38.2 | 16.5 | 21.7 |
| 1951 | 36.9 | 16.0 | 20.8 |
| 1952 | 41.8 | 18.4 | 20.7 |
| 1953 | 40.7 | 17.3 | 18.2 |
| 1954 | 39.4 | 18.1 | 20.0 |
| 1955 | 42.0 | 19.8 | 20.1 |
| 1956 | 47.4 | 20.2 | 21.8 |
| 1957 | 48.3 | 21.8 | 23.2 |
| 1958 | 52.8 | 27.5 | 24.2 |
| 1959 | 53.1 | 21.6 | 23.5 |
| 1960 | 54.7 | 26.1 | 23.5 |
| 1961 | 62.4 | 23.9 | 25.1 |
| 1962 | 64.7 | 25.0 | 24.2 |
| 1963 | 67.9 | 25.2 | 24.4 |
| 1964 | 62.9 | 25.8 | 22.8 |
| 1965 | 74.1 | 26.5 | 24.5 |
| 1966 | 73.1 | 26.3 | 25.4 |
| 1967 | 80.1 | 25.8 | 24.5 |
| 1968 | 79.5 | 28.4 | 26.7 |
| 1969 | 85.9 | 30.6 | 27.4 |
| 1970 | 72.4 | 31.0 | 26.7 |
| 1971 | 88.1 | 33.9 | 27.5 |
| 1972 | 97.0 | 32.7 | 27.8 |
| 1973 | 91.3 | 31.6 | 27.8 |
| 1974 | 71.9 | 27.3 | 23.7 |
| 1975 | 86.4 | 30.6 | 28.9 |
| 1976 | 88.0 | 30.3 | 26.1 |
| 1977 | 90.8 | 30.7 | 30.6 |
| 1978 | 101.0 | 31.4 | 29.4 |
| 1979 | 109.5 | 34.2 | 32.1 |
| 1980 | 91.0 | 33.5 | 26.5 |
| 1981 | 108.9 | 34.5 | 30.1 |
| 1982 | 113.2 | 35.5 | 31.5 |
| 1983 | 81.1 | 39.4 | 26.2 |
| 1984 | 106.7 | 38.8 | 28.1 |
| 1985 | 118.0 | 37.5 | 34.1 |
| 1986 | 119.4 | 34.4 | 33.3 |
| 1987 | 119.8 | 37.7 | 33.9 |
| 1988 | 84.6 | 34.1 | 27.0 |
| 1989 | 116.3 | 32.7 | 32.3 |
| 1990 | 118.5 | 39.5 | 34.1 |
| 1991 | 108.6 | 34.3 | 34.2 |
| 1992 | 131.5 | 39.3 | 37.6 |
| 1993 | 100.7 | 38.2 | 32.6 |
| 1994 | 138.6 | 37.6 | 41.4 |
| 1995 | 113.5 | 35.8 | 35.3 |
| 1996 | 127.1 | 36.3 | 37.6 |
| 1997 | 126.7 | 39.5 | 38.9 |
| 1998 | 134.4 | 43.2 | 38.9 |
| 1999 | 133.8 | 42.7 | 36.6 |
| 2000 | 136.9 | 42.0 | 38.1 |
| 2001 | 138.2 | 40.2 | 39.6 |
| 2002 | 129.3 | 35.0 | 38.0 |
| 2003 | 142.2 | 44.2 | 33.9 |
| 2004 | 160.3 | 43.2 | 42.2 |
| 2005 | 147.9 | 42.0 | 43.1 |
| 2006 | 149.1 | 38.6 | 42.9 |
| 2007 | 150.7 | 40.2 | 41.7 |
| 2008 | 153.3 | 44.8 | 39.7 |
| 2009 | 164.4 | 44.3 | 44.0 |
| 2010 | 152.6 | 46.1 | 43.5 |
| 2011 | 146.8 | 43.6 | 42.0 |
| 2012 | 123.1 | 46.2 | 40.0 |
| 2013 | 158.1 | 47.1 | 44.0 |
| 2014 | 171.0 | 43.7 | 47.5 |
| 2015 | 168.4 | 43.6 | 48.0 |
| 2016 | 174.6 | 52.7 | 51.9 |
| 2017 | 176.6 | 46.4 | 49.3 |
| 2018 | 176.4 | 47.6 | 50.6 |
| 2019 | 167.5 | 51.6 | 47.4 |
| 2020 | 171.4 | 49.7 | 51.0 |
| 2021 | 176.7 | 44.5 | 51.7 |
| 2022 | 173.4 | 46.5 | 49.6 |
| 2023 | 177.3 | 48.6 | 50.6 |
In fact, for the first half of the 20th century, yields remained range-bound between 20–30 bushels per acre.
Then, there were two miracles. First, the introduction of a drought-resistant variety of the crop (1940s). Then, the introduction of fertilizer, pesticides, and mechanized agriculture (1950s).
Since then, corn yields have climbed at a rate of roughly 1.9 bushel/acre, per year.
Why Are Corn Yields So Much Higher Than Soy and Wheat?
Corn has a high energy density which directly translates into more food per acre. It’s also better at turning sunlight into biomass, meaning it grows faster. Both of these qualities make it the preferred crop to sow.
Compared to soybean (mostly animal feed and export to Asia) and wheat (mostly for humans), it’s also a far more versatile grain.
All of this means it attracts significant investment for varied uses: in animal feed, biofuel production, and the creation of high-fructose corn syrup. This investment helps fund research into the continuous improvement of corn yields.
Despite lower yields compared to corn, the U.S. is still a major wheat producer. Check out Breaking Down Global Wheat Production, by Country, to see where it ranks.
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Commercial fertilizer, yes but there are ways around it. If you take away from the soil you must replace it. The most important part of the equation is data and how it has been used to change corn varieties to improve production. It is not all genetically modified. Breeding plants is no different than animals, or people. Good genetics are passed, bad are skipped, modern technology speeds up the process, but they can and do add genes to some crops-but not all across the board. The difference is in conventional or traited (GMO). Most varieties are available in both, the GMO has genes that prevent herbicides from killing it. Modern weed control with chemicals is a huge part. A weedy corn row will produce 50-70% less yield than without, a lot has changed in the last 30 years.
Grow organic, cultivate rows, wash away topsoil… everything has a negative. There is no standard with organic, I would bet half of the organic corn is GMO and traited with genes for chemicals, and sprayed with chemicals-because it is worth more, and who is checking?
Producers will always try to find an edge or some way to either get ahead or stay profitable. The downside- if you do not stay profitable you get to sell everything and do something else, or get pushed out by those that will.
There is only so much room for niche markets, most of the world does not care who supplies what they need, only the cheapest source. Only to be replaced when another one is found. It is getting better but there is only so much room for people who care, and it only matters when people make enough money to afford a choice.
As an organic gardener and farmer for well over fifty years, I concur with and applaud your astute observations.
Not alone in agriculture, we face seemingly insurmountable complexity in every aspect of life. Pick any issue which risks or promotes the destruction of all in all, and whatever remedies one proposes are stymied by the sheer inertia of the totality, and by human greed, lust for power, and base stupidity.
This is why civilizations and empires fail. Inevitable and intractable chaos signals the Turning.