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EMBARGO UNTIL 23H01 GMT - TO GO WITH AFP STORY BY VERONIQUE... News PhotoAgriculture,Biology,Botany,Chemistry,Close-up,Fertilizer,France,Horizontal,Illustration,Illustration Technique,Meurthe et Moselle,Nitrogen,Research,Science,Science and Technology,WorkingPhotographer Collection: AFP 2012 AFPEMBARGO UNTIL 23H01 GMT - TO GO WITH AFP STORY BY VERONIQUE MARTINACHE - A researcher works with nitrogen at the INRA Nancy (National Institute of Agronomic Research) on November 27, 2012 in Champenoux. AFP PHOTO / JEAN-CHRISTOPHE VERHAEGEN (Photo credit should read JEAN-CHRISTOPHE VERHAEGEN/AFP/Getty Images)