Why does organic farming have lower yields?
The Genetic Literacy Project compared 2014 survey data from organic growers with overall agricultural yield statistics for that year on a crop by crop, state by state basis. The picture that emerges is clear–organic yields are mostly lower. To have raised all U.S. crops as organic in 2014 would have required farming of one hundred nine million more acres of land. That is an area equivalent to all the parkland and wildland areas in the lower 48 states or 1.8 times as much as all the urban land in the nation. As of 2014 the reported acreage of organic cropland only represented 0.44 percent of the total, but if organic were to expand significantly, its lower land-use-efficiency would become problematic. This is one of several reasons to question the assertion that organic farming is better for the environment.
Read more at the Genetic Literacy Project