Impacts of elevated atmospheric CO2 on nutrient content of important food crops

<p>This dataset contains detailed cultivation conditions and nutrient concentrations of over 1000 samples of the edible portions of 41 cultivars of six major crop species grown between 1998-2010 across three continents at ambient and elevated atmospheric CO2 concentrations. Elevated atmospheric CO2 concentrations were achieved by free-air CO2 enrichment, which allows experimental manipulation of atmospheric composition under otherwise normal field conditions.</p>