Russia is a leading producer and exporter of wheat, corn, and fertilizer [1][2]. The question you may want to ask is whether the rest of the world be able to feed itself if Russia loses access to its markets [3]?
[1] https://www.rbth.com/business/332948-russia-leading-wheat-ex...
[2] https://www.bloomberg.com/news/articles/2022-03-04/russia-ca...
[3] https://www.rte.ie/news/business/2022/0309/1285347-world-foo...