University of Vermont Scientist Eric Roy in Brazil (IMAGE)

University of Vermont

University of Vermont Scientist Eric Roy in Brazil

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"In some parts of the tropics, for every ton of phosphorus harvested in food, you have to donate one ton to the soil," said Eric Roy, a scientist at the University of Vermont who led a new study published in the journal Nature Plants. "We call that the phosphorus tax." Here he is shown in cropland in Mato Grosso, Brazil, July 2015.

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Eric Roy

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