Tariffs, Supply Constraints, and Falling Crop Prices Put U.S. Fertiliser Market Under Strain

23rd July 2025 A detailed analysis by Argus Media, supported by reporting from sector commentators Calder Jett, Sneha Kumar, Chris Mullins, and Taylor Zavala, highlights the growing pressures on the U.S. fertiliser market as the autumn application season approaches. Insights shared during the recent Southwestern Fertilizer Conference in Nashville have drawn attention to several critical challenges currently affecting the market: 🔻 The Argus Fertilizer Affordability Index has dropped sharply to 0.71 — significantly below the benchmark of 1, and its lowest level since April 2022.🚢 A 10% import tariff introduced in April is tightening offshore supply at a time when the U.S. market is heavily reliant on imports to satisfy domestic demand.🌽 Expectations of a bumper corn crop are putting further strain on inventories while simultaneously driving down corn futures, reducing affordability for growers.🛑 Many wholesalers and retailers are opting to delay their autumn fertiliser purchases to avoid high upfront costs and storage challenges — with phosphates and potash particularly affected. The outlook remains uncertain. By 1 August, additional and potentially higher duties may be imposed on fertiliser imports from Algeria, the EU, Tunisia, Brunei, and Indonesia — countries which together accounted for more than 13% of U.S. fertiliser imports last year. This added layer of complexity is especially significant in the nitrogen segment, where supplies remain limited due to low global inventories and continuing geopolitical disruptions. With coverage also featured in World Fertilizer Magazine, this story is expected to remain a major talking point across the industry in the coming weeks.