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. 2015 Mar 11;6(2):103–133. doi: 10.1080/21645698.2015.1025193
Country Area of trait (‘000 ha) Average ai use GM crop (kg/ha) Average ai use if conventional (kg/ha) Average field EIQ/ha GM crop Average field EIQ/ha if conventional Aggregate change in ai use (‘000 kg) Aggregate change in field EIQ/ha units (millions)
US glyphosate tolerant 203 1.16 1.06 17.7 22.9 +20 −1.1
US glufosinate tolerant 194 0.44 1.06 8.8 22.9 −122 −2.7
Canada glyphosate tolerant 3,891 1.16 1.06 17.7 22.9 +371 −20.0
Canada glufosinate tolerant 3,555 0.44 1.06 8.8 22.9 −2,227 −50.1
Australia glyphosate tolerant 222 0.52 14 7.3 22.3 −117 −1.6