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Dietary shifts driving up phosphorus use
Date:1/17/2013

based on annual country-by-country diet composition data from the Food and Agriculture Organization. They calculated the total amount of phosphorus applied to food crops for humans and animals by using fertilizer-application rates available through the International Fertilizer Association, among other sources. The authors also examined the statistical relationship between economic development and phosphorus-footprint values, and developed scenarios to consider the relative importance of diet changes.

"It is really remarkable how much influence changes in diet have had on our demand for this very limited resource," Bennett says. "As research in this area proceeds, it would also be interesting to learn how much of the phosphorus used in food production is able to be recycled and how much is currently reused. Food waste and human waste generally aren't reused today, but can be a valuable resource if turned into fertilizer or compost for use on nearby agricultural fields."


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Contact: Chris Chipello
christopher.chipello@mcgill.ca
514-398-4201
McGill University
Source:Eurekalert

Page: 1 2

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