Belarus potash exports, 18% of global supply, were also cut off in January due to US sanctions. This will force their dependence on Russia, with a Belarusian port on Russian soil, and for now they are struggling to export any of it.

https://www.spglobal.com/marketintelligence/en/news-insights...

https://www.bloomberg.com/news/articles/2022-02-17/belarus-p...

Here's some perspective on current fertilizer prices: https://blogs.worldbank.org/opendata/fertilizer-prices-expec...