ROSI™ Calculator

This calculator shows estimated returns by using sulfur in fertility programs.

The ROSI™ (Return on Sulfur Investment) calculator is a handy tool that calculates the estimated return a grower could receive by incorporating sulfur into their fertility program each season. Backed by research from The Sulfur Institute and International Plant Nutrition Institute, the ROSI calculator gives users the flexibility to change many different key market variables by crop and region, such as crop value, nitrogen source price, ammonium sulfate price, and sulfur application rate.