Dr. Rob Mikkelsen, Yara North America's Director of Agronomic Services, helps us understand the origin of using phosphorus for plants and how this has changed over the years.  We discuss what the future of phosphorus might look like too.

Read Dr. Rob's article we reference HERE

Check out a couple of our favorite episodes:

• An Unsung Hero: Norman Borlaug
• The Alchemy of Air with author Thomas Hager