Canadian fertiliser giant Shell plans to extend its nitrogen fertiliser production in North America due to higher prices , according to CEO Chuck Magro . China 's closure of coal - fired power plants and the rising cost of natural gas in Europe have curbed production outside of the North American market , leading to higher prices . WINNIPEG, Manitoba, Nov 6 Nutrien is the world 's largest producer of potash and the second largest producer of nitrogen dioxide .
Canadian fertiliser giant Shell plans to extend its nitrogen fertiliser production in North America due to higher prices , according to CEO Chuck Magro . China 's closure of coal - fired power plants and the rising cost of natural gas in Europe have curbed production outside of the North American market , leading to higher prices . Nutrien is the world 's largest producer of potash and the second largest producer of nitrogen dioxide .