Skyrocketing prices for anhydrous ammonia and other nitrogen fertilizer products are putting farmers in Iowa and around the Midwest in a severe bind as they plan for 2022 planting season, according to agricultural economists.

The average price of anhydrous ammonia last week surged to more than $900 per ton for the first time since 2008, according to a survey by DTN. Anecdotal reports around Iowa showed quotes for the key input at well above $1,000 per ton. Price hikes are similar for other nitrogen fertilizer products, such as ...