Corn and Soy yield increase since 1961
In 1961, the world average yield for Corn (Maize) was 19,423 hg/ha and in 2010 it was 51,946 hg/ha. This is an increase of 167.45%, or 2.67 fold. In 1961, the world average yield for Soybeans was 11,286 hg/ha and in 2010 it was 25,839 hg/ha. This is an increase of 128.95%, or 2.29 fold.
Source : “Production. Crops: World + (Total): Maize: Yield.” FAOSTAT. The yield in 1961 was 19,423 hg/ha; in 2010, it was 51,946 hg/ha. Food and Agriculture Organization of the United Nations (FAO). http://faostat.fao.org/site/567/DesktopDefault.aspx?PageID=567#ancor. Accessed 9/25/2012. Source : “Production. Crops: World + (Total): Soybeans: Yield.” FAOSTAT. The yield in 1961 was 11,286 hg/ha; in 2010, it was 25,839 hg/ha. Food and Agriculture Organization of the United Nations (FAO). http://faostat.fao.org/site/567/DesktopDefault.aspx?PageID=567#ancor. Accessed 9/25/2012. [verified 4/18/14]