Yield Gap Analysis: Implications for Research and Policy

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Select reference weather stations (RWS) with greatest maize area density within 100-km buffers, with minimum overlap, until >50% of U.S maize area is covered. Weight Yp estimates <strong>for</strong> each RWS buffer by maize area density to estimate national Yp. Total area within buffers account <strong>for</strong> 52% of USA RF maize production
Appropriate crop simulation model (validated against yields that approach Yp)
Page 1 and 2: Yield Gap Analysis: Implications fo
Page 3 and 4: • Will business as usual meet pro
Page 5 and 6: Urban-industrial expansion onto pri
Page 7 and 8: Global Average Maize Yield (kg ha -
Page 9 and 10: Decreasing water supply in all majo
Page 11 and 12: From NCGA website, 8 May 2008: http
Page 13 and 14: Clearing virgin rain forest in Braz
Page 15 and 16: N fertilizer rate (kg N ha -1 ) NUE
Page 17 and 18: Ecological Intensification • How
Page 19 and 20: Crop Sci. 50:1882-1890 (2010) Genet
Page 21 and 22: Yield CO 2 Solar radiation Temperat
Page 23 and 24: Interactions between plant nutrient
Page 25 and 26: Developing a transparent, robust, r
Page 27: Rank of NOAA weather stations by de
Page 31 and 32: NOAA weather stations with +20 yrs
Page 33 and 34: Major rice cropping systems in Chin
Page 35 and 36: Wheat area density (green) and refe
Page 37 and 38: How high can average farm yields go
Page 39: Need for Yield Potential--Yield Gap

Yield Gap Analysis: Implications for Research and Policy

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