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Abstract
The growth rate for year for U.S. agricultural productivity through the year 2025 may decline if the past trend of support for research and extension extends into the future. However, with increased support for research and extension, three major emerging technologies--photosynthesis enhancement, bioregulators, and twinning beef cattle--may be developed and adopted by farmers before the turn of the century. Adoption of these emerging technologies will shift productivity growth to a higher growth curve. It was projected under these circumstances that the growth rate through the year 2025 may equal the historical rate.