DEFRA has not funded research specifically to look in overall terms at the relative efficiency, in terms of land use, of producing organic and non-organic crops. However, the following DEFRA-funded projects involve some element of comparison between organic and conventional farming:
OFO 145/301—Testing the sustainability of stockless arable organic farming on a fertile soil
OF0165—Factors influencing biodiversity within organic and conventional systems of arable farming
OFO 319/OFO 326—Sustainable organic hill and upland farming—A collaborative case study approach
OFO 370—Farm practice and soil health
OFO 189/OFO 190/OFO 373—Economics of organic farming
Further information on these projects can be found on the research pages of the DEFRA website.