Two Iowa companies are among 10 start-ups vying for a top prize of $100,000 in the 2026 Farm Bureau Ag Innovation Challenge.

Terraform Tillage, founded by Josh Jeske in 2020 and based in Eldora, has developed a patent-pending SmartProbe System that improves the efficiency and effectiveness of traditional soil penetrometer mapping. The technology allows farmers to easily record penetrometer readings and generate real-time maps...