Sky-high fertilizer prices have farmers worldwide scaling back its use and reducing the amount of land they're planting, in fallout from the Ukraine-Russia conflict that has some agricultural industry veterans warning of food shortages.

Western sanctions on Russia, a major exporter of potash, ammonia, urea and other soil nutrients, have disrupted shipments of those key inputs around the globe. Fertilizer is key to keeping corn, soy, rice and wheat yields high. Growers are scrambling to adjust.

The pivot can be seen in agricultural powerhouse Brazil, where some farmers are applying less fertilizer to their corn, and some federal legislators are pushing to open protected indigenous lands for the mining of potash. In Zimbabwe and Kenya, small farmers are reverting to using manure to nourish their crops. In Canada, one canola farmer has already stockpiled fertilizer for the 2023 season in anticipation of even higher prices ahead.