The world’s largest fertilizer users are the United States, China, India, Russia, and Brazil, according to The Fertilizer Institute. Nitrogen: The United States is the world’s third-largest nitrogen producer after China and India. The United States has the capacity to produce nearly 14.5 million metric tons of ammonia. It both imports and exports nitrogen, but is a net importer. Russia is the world’s largest exporter, using fertilizer to raise foreign currency. Phosphate: The United States is the world’s largest producer of phosphate fertilizer because of its large areas of phosphate rock reserves. It exports between 55 and 60 percent of […]