Soc. The top 11 cornyields by state of 2018 were: The top 11 cornyields by state of 2017 were: The top 11 cornyields by state of 2016 were: The top 11 cornyields by state of 2015 were: The top 11 cornyields by state of 2014 were: The top 11 cornyields by state of 2013 were: The top 11 cornyields by state of 2012 were: The top 11 cornyields by state of 2011 were: The top 11 cornyields by state of 2010 were: The top 11 cornyields by state of 2009 were: The top 11 cornyields by state of 2008 were: The top 11 cornyields by state of 2007 were: The top 11 cornyields by state of 2006 were: The top 11 cornyields by state of 2005 were: The top 11 cornyields by state of 2004 were: The top 11 cornyields by state of 2003 were: The top 11 cornyields by state of 2002 were: The top 11 cornyields by state of 2001 were: The top 11 cornyields by state of 2000 were: CropProphet is an “ag weather” based corn and soybean yield/production forecasting system. The Technology Trend – many types of technology are improving yields for both soybeans and corn. Within a very few years, the national yield statistics indicated that the first "miracle" of corn grain yield improvement had occurred. CropProphet is a crop yield and forecasting system. Rather, these traits simply protect the inherent yield potential of modern hybrids while potentially reducing farmers' reliance on chemical pesticides. 2012. The causes of year-to-year crop and soybean yield variations at the state and national level are: Follow this link if you are interested in state soybean yield per acre rankings. For example, our corn yield forecast is based on a model of bushels of corn yield per harvested acre. 33(4):338-347. 1). Amazingly, the historical data indicate there was no appreciable change in productivity during that entire time period (Fig. Conversely, the greatest single positive departure from trend yield occurred in 1906 when the corn crop that year yielded 23% higher than expected trend yield.
equal opportunity university. Data derived from annual USDA-NASS Crop Production Reports. 1. The Great Drought of 2012 certainly resulted in dramatic and historic reductions in corn grain yield relative to trend yield (-22%), but the greatest negative departure from trend yield actually occurred more than 100 years earlier during the Great Drought of 1901 (-30%). Corn grain yields in the U.S. have steadily increased since the late 1930's. © 1995 However, significant changes in the trend line itself (i.e., the slope of the line) are usually caused by significant changes in the adoption of farming technologies (e.g, hybrids, pest control, soil management, mechanization, precision ag. Earth Interactions (American Meteorological Society) 9:1-9. https://doi.org/10.1175/EI098.1 [URL accessed Apr 2020], Schnitkey, Gary. The average corn yields for counties and areas in Iowa are included in this file. American farmers grew open-pollinated corn varieties until the rapid adoption of hybrid corn began in the late 1930's. State College, PA 16803. if (yr!=1995) Fig. Some Economic Aspects of the Heat and Drought of July, 1901, in the United States. The variations around the upward trend in the data the charts below are caused by weather conditions during the US growing season. technologies). Suite 229 The GOOD NEWS is that corn grain yields in the U.S. have been steadily increasing since the 1950's at almost 2 bushels per acre per year. Annual percentage departures from historical U.S. corn trend yields since 1866. The general upward slope of the line is the technology trend. Left or right arrow on your keypad will cycle through the popup images. Averages from 2010 through 2019 are included in the tables and graphs. Irwin, Scott and Darrel Good. Request a trial of CropProphet to get daily updated forecasts of United States crop production, including corn and soybeans. The corn yield technology trend – many types of technology are improving yields corn.

For example, starting in May and finishing in November, CropProphet forecasts US national average corn yield each year. 2. 2), primarily in response to variability in growing conditions year to year (weather, pests). 1).

The second "miracle" of corn grain yield improvement began in the mid-1950's in response to continued improvements in genetic yield potential and stress tolerance plus increased adoption of N fertilizer, chemical pesticides, and agricultural mechanization (Fig. United States Dept. The graphic below shows the 2019 corn yield by state. The historical yield data for corn in the U.S. illustrate the positive impact of improved crop genetics and crop production technologies. farmdoc daily (2):21, Department of Agricultural and Consumer Economics, University of Illinois at Urbana-Champaign. 1). American farmers grew open-pollinated corn varieties until the rapid adoption of hybrid corn began in the late 1930’s. An analysis of state average corn yield history data provided by the USDA NASS indicates there are two causes of corn yield (in bushel per acre) variations at the regional level in the United States. Geog. 1 that the advent and adoption of transgenic hybrid traits beginning in the mid-1990's has not resulted in yields unusually higher than the long-term yield trend. Trend Line Trivia: Historical trend lines can be a useful way to visualize changes over time. The causes of year-to-year corn production variation at the state and national level are: Iowa’s maximum corn production achieved is 2740.5 Mb which occurred in 2016, Illinois’s maximum corn production achieved is 2350 Mb which occurred in 2014, Indiana’s maximum corn production achieved is 1084.76 Mb which occurred in 2014, Nebraska’s maximum corn production achieved is 1785.6 Mb which occurred in 2018, Ohio’s maximum corn production achieved is 650.76 Mb which occurred in 2013, Minnesota’s maximum corn production achieved is 1544 Mb which occurred in 2016.

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