Morocco, a top fertilizer producer, could hold a key to the world's food supply.Morocco has a large fertilizer industry with huge production capacity and international reach. It is one of the world's top four fertilizer exporters following Russia, China and Canada.Morocco has distinct advantage in the production of phosphorus fertilizers. It possesses over 70% of the world's phosphate rock reserves, from which the phosphorus used in fertilizers is derived. And this makes Morocco a gatekeeper of global food supply chains because all food crops require the element phosphorus to grow. Indeed, so does all plant life. Unlike other finite resources, such as fossil fuels, there is no alternative to phosphorus.Morocco plans to produce an additional 8.2 million tons of phosphorus fertilizer by 2026. Currently production is at about 12 million tons.