Recent Trends in Closing the Yield Gap of Major Global Crops

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Approaches to yield gaps.

Simulation

Field trial

Analog climate

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Approaches to yield gaps. Simulation Field trial Analog climate

Data sources •Yield and area data for year 2000 from Monfredaet al. 1 • FAO Data used for interannual variation •WORLDCLIM climate (static). 1 Monfreda, C., et al. (2008), Farming the planet: 2. Geographic distribution of crop areas, yields, physiological types and net primary production in the year 2000, Global Biogeochem. Cycles, 22, GB1022, doi:10.1029/2007/GB002947

Page 1 and 2: Recent Trends in Closing the Yield
Page 3: Outline •Data sources •Potentia
Page 7 and 8: Apply this method for all bins
Page 9 and 10: Fractional yield gap
Page 11 and 12: How to extend to other years •Ass
Page 13: Yield gap trends
Page 18: Thank you James Gerber jsgerber@umn

Recent Trends in Closing the Yield Gap of Major Global Crops

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