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Country-level, growing season average P/PET Country-level yield. 1. Determine the relationship between yield and P/PET. Yield model. 2. Use gridded growing season P/PET to estimate yield in each grid cell. Gridded yield data.
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Country-level, growing season average P/PET Country-level yield 1. Determine the relationship between yield and P/PET. Yield model 2. Use gridded growing season P/PET to estimate yield in each grid cell. Gridded yield data 3. Use published CFE estimates for major staple crops to estimate yield enhancement in each grid cell, and sum all cells for a country to estimate production. Country-level production with a 100 ppm increase in [CO2]