U.S. agricultural productivity is strong now, but the future is uncertain
Along with the population, U.S. agricultural output has more than doubled since 1948, says a USDA report. "With little growth in total input use (0.07 percent per year) during that period, the extraordinary performance of the U.S. farm sector was driven mainly by productivity growth, at an annual rate of 1.42 percent," according to the report.