Understanding mechanisms of sulfur cycling in Minnesota soils and availability from fertilizer
Study author(s): Daniel Kaiser, University of Minnesota, Department of Soil, Water, and Climate
Years of study: Ongoing (2020 – present)
Location: Becker MN, Morris MN, Rosemount MN, and Waseca MN
Important: to view the complete findings, including all tables and figures, please download the full research reports using the links to the right.
2023 (year 5) summary points
- Sulfur increased corn grain yield at two locations. Application of 10-20 lbs of S per acre was sufficient for medium to fine textured soils.
- Sulfur was carried over from the previous 4 years’ application. MST provided the greatest potential for sulfur carryover.
- Tiger 90 appeared to benefit corn from the previous years’ sulfur application. However, Tiger 90 still appeared to result in less available S than sulfate or MST.
- Sulfate forms of sulfur and MST generated the highest grain yield with annual fertilizer application.