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Agricultural production increases, per commodity 1965-2008

Year: 2009 Author: Hugo Ahlenius, UNEP/GRID-Arendal
The use of fertilizers accounts for approximately 50% of the yield increase, and greater irrigation for another substantial part (FAO, 2003). Current FAO projections in food demand suggest that cereal demand will increase by almost 50% towards 2050 (FAO, 2003; 2006). This can either be obtained by increasing yields, continued expansion of cropland by conversion of natural habitats, or by optimizing food or feed energy efficiency from production to consumption.
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