Board Thread:General Discussion/@comment-24.16.36.198-20130405183223/@comment-5625597-20130406053326

That's because Tekkit Classic is stuck in a time warp at Minecraft 1.2.5 and carrots and potatoes were added in Minecraft 1.4. Tekkit Classic isn't being updated any time soon, so use Tekkit Lite for an up to date Tekkit experiance.