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Chart indicating sharp increases in labor productivity-from rising efficiency due to the use of farm machinery, pesticides, fuel, and fertilizers as well as technological improvements in plant breeding and animal husbandry years 1948 to 2000

Chart indicating sharp increases in labor productivity?from rising efficiency due to the use of farm machinery, pesticides, fuel, and fertilizers as well as technological improvements in plant breeding and animal husbandry years 1948 to 2000

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