Author

Kevin McNew & German Mandrini

Kevin is a former Professor of Economics at the University of Maryland and Montana State University focusing on commodity markets. As an analyst, Kevin's unique commentary on cash markets can be seen weekly on Bloomberg, Dow Jones, Reuters and other publications.

German is a Data Scientist at FBN, working at the intersection of data science, agronomy, and finance. He comes from a family farm, and agriculture has guided much of his career. He holds a B.S. in agronomy, an M.S in agricultural economics, and a Ph.D. in crop sciences. He has more than ten years of experience working for different companies in the farming sector, including grain trading, input selling, farm management, and corn breeding.










Jan 20, 2023

by German Mandrini

Soil productivity indexes (PIs) are relative scales by which different soils can be compared and assessed. By taking into account many factors that determine yield potential, a soil PI provides a single number to rate soil quality.